[PATCH v8 2/6] Handle pg_get_viewdef default args in system

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[PATCH v8 2/6] Handle pg_get_viewdef default args in system_functions.sql
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* [PATCH v8 2/6] Handle pg_get_viewdef default args in system_functions.sql
@ 2025-12-09 17:33  Mark Wong <markwkm@gmail.com>
  0 siblings, 0 replies; 440+ messages in thread

From: Mark Wong @ 2025-12-09 17:33 UTC (permalink / raw)

Modernize pg_get_viewdef to use proargdefaults to handle the optional
pretty argument for both versions that use OID or view name.
---
 src/backend/utils/adt/ruleutils.c | 44 -------------------------------
 src/include/catalog/pg_proc.dat   | 17 +++++-------
 2 files changed, 6 insertions(+), 55 deletions(-)

diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c
index 76705db3dac..fd00d6c3515 100644
--- a/src/backend/utils/adt/ruleutils.c
+++ b/src/backend/utils/adt/ruleutils.c
@@ -669,25 +669,6 @@ pg_get_ruledef_worker(Oid ruleoid, int prettyFlags)
  */
 Datum
 pg_get_viewdef(PG_FUNCTION_ARGS)
-{
-	/* By OID */
-	Oid			viewoid = PG_GETARG_OID(0);
-	int			prettyFlags;
-	char	   *res;
-
-	prettyFlags = PRETTYFLAG_INDENT;
-
-	res = pg_get_viewdef_worker(viewoid, prettyFlags, WRAP_COLUMN_DEFAULT);
-
-	if (res == NULL)
-		PG_RETURN_NULL();
-
-	PG_RETURN_TEXT_P(string_to_text(res));
-}
-
-
-Datum
-pg_get_viewdef_ext(PG_FUNCTION_ARGS)
 {
 	/* By OID */
 	Oid			viewoid = PG_GETARG_OID(0);
@@ -727,31 +708,6 @@ pg_get_viewdef_wrap(PG_FUNCTION_ARGS)
 
 Datum
 pg_get_viewdef_name(PG_FUNCTION_ARGS)
-{
-	/* By qualified name */
-	text	   *viewname = PG_GETARG_TEXT_PP(0);
-	int			prettyFlags;
-	RangeVar   *viewrel;
-	Oid			viewoid;
-	char	   *res;
-
-	prettyFlags = PRETTYFLAG_INDENT;
-
-	/* Look up view name.  Can't lock it - we might not have privileges. */
-	viewrel = makeRangeVarFromNameList(textToQualifiedNameList(viewname));
-	viewoid = RangeVarGetRelid(viewrel, NoLock, false);
-
-	res = pg_get_viewdef_worker(viewoid, prettyFlags, WRAP_COLUMN_DEFAULT);
-
-	if (res == NULL)
-		PG_RETURN_NULL();
-
-	PG_RETURN_TEXT_P(string_to_text(res));
-}
-
-
-Datum
-pg_get_viewdef_name_ext(PG_FUNCTION_ARGS)
 {
 	/* By qualified name */
 	text	   *viewname = PG_GETARG_TEXT_PP(0);
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 45e4483692d..5b22fdc8e08 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -3981,13 +3981,6 @@
 { oid => '6469', descr => 'source text of a property graph',
   proname => 'pg_get_propgraphdef', provolatile => 's', prorettype => 'text',
   proargtypes => 'oid', prosrc => 'pg_get_propgraphdef' },
-{ oid => '1640', descr => 'select statement of a view',
-  proname => 'pg_get_viewdef', provolatile => 's', proparallel => 'r',
-  prorettype => 'text', proargtypes => 'text',
-  prosrc => 'pg_get_viewdef_name' },
-{ oid => '1641', descr => 'select statement of a view',
-  proname => 'pg_get_viewdef', provolatile => 's', proparallel => 'r',
-  prorettype => 'text', proargtypes => 'oid', prosrc => 'pg_get_viewdef' },
 { oid => '1642', descr => 'role name by OID (with fallback)',
   proname => 'pg_get_userbyid', provolatile => 's', prorettype => 'name',
   proargtypes => 'oid', prosrc => 'pg_get_userbyid' },
@@ -8567,15 +8560,17 @@
   proargtypes => 'oid bool', proargnames => '{rule,pretty}',
   proargdefaults => '{false}',prosrc => 'pg_get_ruledef' },
 { oid => '2505',
-  descr => 'select statement of a view with pretty-print option',
+  descr => 'select statement of a view',
   proname => 'pg_get_viewdef', provolatile => 's', proparallel => 'r',
   prorettype => 'text', proargtypes => 'text bool',
-  prosrc => 'pg_get_viewdef_name_ext' },
+  proargnames => '{view,pretty}', proargdefaults => '{false}',
+  prosrc => 'pg_get_viewdef_name' },
 { oid => '2506',
-  descr => 'select statement of a view with pretty-print option',
+  descr => 'select statement of a view',
   proname => 'pg_get_viewdef', provolatile => 's', proparallel => 'r',
   prorettype => 'text', proargtypes => 'oid bool',
-  prosrc => 'pg_get_viewdef_ext' },
+  proargnames => '{view,pretty}', proargdefaults => '{false}',
+  prosrc => 'pg_get_viewdef' },
 { oid => '3159',
   descr => 'select statement of a view with pretty-printing and specified line wrapping',
   proname => 'pg_get_viewdef', provolatile => 's', proparallel => 'r',
-- 
2.53.0


--iWwo79nqhOvOs5kf
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Content-Disposition: attachment;
	filename=v8-0003-Handle-pg_get_indexdef-default-args-in-system_fun.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
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Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-09 19:26 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for pin on, or -1 */
-	int			startupBufferPinWaitBufId;
+	pg_atomic_uint32 startupBufferPinWaitBufId;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Ot5x3ffkWEuxilWO
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



^ permalink  raw  reply  [nested|flat] 440+ messages in thread

* [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic
@ 2026-07-22 15:32  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 440+ messages in thread

From: Nathan Bossart @ 2026-07-22 15:32 UTC (permalink / raw)

---
 src/backend/storage/lmgr/proc.c | 12 +++---------
 src/include/storage/proc.h      |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index f973494abb1..5be06073ea1 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBuf = InvalidBuffer;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBuf, InvalidBuffer);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBuf(Buffer buffer)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBuf = buffer;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBuf, buffer);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBuf(Buffer buffer)
 Buffer
 GetStartupBufferPinWaitBuf(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBuf;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBuf);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 4c3f431b4eb..abe40001d9a 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -500,7 +500,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer that Startup process waits for pin on, or InvalidBuffer */
-	Buffer		startupBufferPinWaitBuf;
+	pg_atomic_uint32 startupBufferPinWaitBuf;
 } PROC_HDR;
 
 extern PGDLLIMPORT PROC_HDR *ProcGlobal;
-- 
2.50.1 (Apple Git-155)


--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
	filename=v2-0006-convert-Sharedsort-currentWorker-workersFinished-.patch



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2025-12-09 17:33 [PATCH v8 2/6] Handle pg_get_viewdef default args in system_functions.sql Mark Wong <markwkm@gmail.com>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
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2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-09 19:26 [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>
2026-07-22 15:32 [PATCH v2 5/9] convert PROC_HDR->startupBufferPinWaitBuf to an atomic Nathan Bossart <nathan@postgresql.org>

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