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[PATCH 3/9] remove excess parens around ereport
560+ messages / 2 participants
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* [PATCH 3/9] remove excess parens around ereport
@ 2026-03-12 15:09  Álvaro Herrera <alvherre@kurilemu.de>
  0 siblings, 0 replies; 560+ messages in thread

From: Álvaro Herrera @ 2026-03-12 15:09 UTC (permalink / raw)

---
 src/backend/commands/cluster.c | 78 ++++++++++++++++++----------------
 1 file changed, 41 insertions(+), 37 deletions(-)

diff --git a/src/backend/commands/cluster.c b/src/backend/commands/cluster.c
index db3980b84f5..af47354e382 100644
--- a/src/backend/commands/cluster.c
+++ b/src/backend/commands/cluster.c
@@ -992,10 +992,10 @@ check_repack_concurrently_requirements(Relation rel, Oid *ident_idx_p)
 	/* Data changes in system relations are not logically decoded. */
 	if (IsCatalogRelation(rel))
 		ereport(ERROR,
-				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-				 errmsg("cannot repack relation \"%s\"",
-						RelationGetRelationName(rel)),
-				 errhint("REPACK CONCURRENTLY is not supported for catalog relations.")));
+				errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				errmsg("cannot repack relation \"%s\"",
+					   RelationGetRelationName(rel)),
+				errhint("REPACK CONCURRENTLY is not supported for catalog relations."));
 
 	/*
 	 * reorderbuffer.c does not seem to handle processing of TOAST relation
@@ -1003,28 +1003,28 @@ check_repack_concurrently_requirements(Relation rel, Oid *ident_idx_p)
 	 */
 	if (IsToastRelation(rel))
 		ereport(ERROR,
-				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
-				 errmsg("cannot repack relation \"%s\"",
-						RelationGetRelationName(rel)),
-				 errhint("REPACK CONCURRENTLY is not supported for TOAST relations, unless the main relation is repacked too.")));
+				errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				errmsg("cannot repack relation \"%s\"",
+					   RelationGetRelationName(rel)),
+				errhint("REPACK CONCURRENTLY is not supported for TOAST relations, unless the main relation is repacked too."));
 
 	relpersistence = rel->rd_rel->relpersistence;
 	if (relpersistence != RELPERSISTENCE_PERMANENT)
 		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("cannot repack relation \"%s\"",
-						RelationGetRelationName(rel)),
-				 errhint("REPACK CONCURRENTLY is only allowed for permanent relations.")));
+				errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+				errmsg("cannot repack relation \"%s\"",
+					   RelationGetRelationName(rel)),
+				errhint("REPACK CONCURRENTLY is only allowed for permanent relations."));
 
 	/* With NOTHING, WAL does not contain the old tuple. */
 	replident = rel->rd_rel->relreplident;
 	if (replident == REPLICA_IDENTITY_NOTHING)
 		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("cannot repack relation \"%s\"",
-						RelationGetRelationName(rel)),
-				 errhint("Relation \"%s\" has insufficient replication identity.",
-						 RelationGetRelationName(rel))));
+				errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+				errmsg("cannot repack relation \"%s\"",
+					   RelationGetRelationName(rel)),
+				errhint("Relation \"%s\" has insufficient replication identity.",
+						RelationGetRelationName(rel)));
 
 	/*
 	 * If the identity index is not set due to replica identity being, PK
@@ -1035,11 +1035,11 @@ check_repack_concurrently_requirements(Relation rel, Oid *ident_idx_p)
 		ident_idx = rel->rd_pkindex;
 	if (!OidIsValid(ident_idx))
 		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("cannot process relation \"%s\"",
-						RelationGetRelationName(rel)),
-				 errhint("Relation \"%s\" has no identity index.",
-						 RelationGetRelationName(rel))));
+				errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+				errmsg("cannot process relation \"%s\"",
+					   RelationGetRelationName(rel)),
+				errhint("Relation \"%s\" has no identity index.",
+						RelationGetRelationName(rel)));
 
 	*ident_idx_p = ident_idx;
 }
@@ -2793,20 +2793,21 @@ decode_concurrent_changes(LogicalDecodingContext *ctx,
 			ReadLocalXLogPageNoWaitPrivate *priv;
 
 			if (errm)
-				ereport(ERROR, (errmsg("%s", errm)));
+				ereport(ERROR,
+						errmsg("%s", errm));
 
 			/*
 			 * In the decoding loop we do not want to get blocked when there
 			 * is no more WAL available, otherwise the loop would become
 			 * uninterruptible.
 			 */
-			priv = (ReadLocalXLogPageNoWaitPrivate *)
-				ctx->reader->private_data;
+			priv = (ReadLocalXLogPageNoWaitPrivate *) ctx->reader->private_data;
 			if (priv->end_of_wal)
 				/* Do not miss the end of WAL condition next time. */
 				priv->end_of_wal = false;
 			else
-				ereport(ERROR, (errmsg("could not read WAL record")));
+				ereport(ERROR,
+						errmsg("could not read WAL record"));
 		}
 
 		/*
@@ -2852,7 +2853,8 @@ decode_concurrent_changes(LogicalDecodingContext *ctx,
 							 timeout);
 			if (res != WAIT_LSN_RESULT_SUCCESS &&
 				res != WAIT_LSN_RESULT_TIMEOUT)
-				ereport(ERROR, (errmsg("waiting for WAL failed")));
+				ereport(ERROR,
+						errmsg("waiting for WAL failed"));
 		}
 	}
 
@@ -3050,7 +3052,8 @@ apply_concurrent_update(Relation rel, HeapTuple tup, HeapTuple tup_target,
 					  &tmfd, &lockmode, &update_indexes,
 					  false /* wal_logical */ );
 	if (res != TM_Ok)
-		ereport(ERROR, (errmsg("failed to apply concurrent UPDATE")));
+		ereport(ERROR,
+				errmsg("failed to apply concurrent UPDATE"));
 
 	ExecStoreHeapTuple(tup, index_slot, false);
 
@@ -3091,7 +3094,8 @@ apply_concurrent_delete(Relation rel, HeapTuple tup_target)
 					  false /* wal_logical */ );
 
 	if (res != TM_Ok)
-		ereport(ERROR, (errmsg("failed to apply concurrent DELETE")));
+		ereport(ERROR,
+				errmsg("failed to apply concurrent DELETE"));
 
 	pgstat_progress_incr_param(PROGRESS_REPACK_HEAP_TUPLES_DELETED, 1);
 }
@@ -3576,7 +3580,7 @@ rebuild_relation_finish_concurrent(Relation NewHeap, Relation OldHeap,
 		 * Should not happen, given our lock on the old relation.
 		 */
 		ereport(ERROR,
-				(errmsg("identity index missing on the new relation")));
+				errmsg("identity index missing on the new relation"));
 
 	/* Gather information to apply concurrent changes. */
 	chgdst.rel = NewHeap;
@@ -3864,9 +3868,9 @@ start_decoding_worker(Oid relid)
 	decoding_worker = palloc0_object(DecodingWorker);
 	if (!RegisterDynamicBackgroundWorker(&bgw, &decoding_worker->handle))
 		ereport(ERROR,
-				(errcode(ERRCODE_CONFIGURATION_LIMIT_EXCEEDED),
-				 errmsg("out of background worker slots"),
-				 errhint("You might need to increase \"%s\".", "max_worker_processes")));
+				errcode(ERRCODE_CONFIGURATION_LIMIT_EXCEEDED),
+				errmsg("out of background worker slots"),
+				errhint("You might need to increase \"%s\".", "max_worker_processes"));
 
 	decoding_worker->seg = seg;
 	decoding_worker->error_mqh = mqh;
@@ -3921,8 +3925,8 @@ stop_decoding_worker(void)
 
 	if (status == BGWH_POSTMASTER_DIED)
 		ereport(FATAL,
-				(errcode(ERRCODE_ADMIN_SHUTDOWN),
-				 errmsg("postmaster exited during REPACK command")));
+				errcode(ERRCODE_ADMIN_SHUTDOWN),
+				errmsg("postmaster exited during REPACK command"));
 
 	shm_mq_detach(decoding_worker->error_mqh);
 
@@ -3979,8 +3983,8 @@ RepackWorkerMain(Datum main_arg)
 	seg = dsm_attach(DatumGetUInt32(main_arg));
 	if (seg == NULL)
 		ereport(ERROR,
-				(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
-				 errmsg("could not map dynamic shared memory segment")));
+				errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
+				errmsg("could not map dynamic shared memory segment"));
 
 	shared = (DecodingWorkerShared *) dsm_segment_address(seg);
 
-- 
2.47.3


--pnppmxqkefjd4hu2
Content-Type: text/plain; charset=utf-8
Content-Disposition: attachment;
	filename="0004-XLogRecPtrIsInvalid-XLogRecPtrIsValid.nocfbot.txt"



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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



^ permalink  raw  reply  [nested|flat] 560+ messages in thread

* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

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


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	filename=v1-0005-convert-Sharedsort-currentWorker-workersFinished-.patch



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* [PATCH v1 4/8] convert PROC_HDR->startupBufferPinWaitBufId to an atomic
@ 2026-07-09 19:26  Nathan Bossart <nathan@postgresql.org>
  0 siblings, 0 replies; 560+ messages in thread

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

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

diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c
index 9d6e69175a5..5f314efb289 100644
--- a/src/backend/storage/lmgr/proc.c
+++ b/src/backend/storage/lmgr/proc.c
@@ -239,7 +239,7 @@ ProcGlobalShmemInit(void *arg)
 	dlist_init(&ProcGlobal->autovacFreeProcs);
 	dlist_init(&ProcGlobal->bgworkerFreeProcs);
 	dlist_init(&ProcGlobal->walsenderFreeProcs);
-	ProcGlobal->startupBufferPinWaitBufId = -1;
+	pg_atomic_init_u32(&ProcGlobal->startupBufferPinWaitBufId, -1);
 	pg_atomic_init_u32(&ProcGlobal->avLauncherProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->walwriterProc, INVALID_PROC_NUMBER);
 	pg_atomic_init_u32(&ProcGlobal->checkpointerProc, INVALID_PROC_NUMBER);
@@ -768,10 +768,7 @@ InitAuxiliaryProcess(void)
 void
 SetStartupBufferPinWaitBufId(int bufid)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	procglobal->startupBufferPinWaitBufId = bufid;
+	pg_atomic_write_u32(&ProcGlobal->startupBufferPinWaitBufId, bufid);
 }
 
 /*
@@ -780,10 +777,7 @@ SetStartupBufferPinWaitBufId(int bufid)
 int
 GetStartupBufferPinWaitBufId(void)
 {
-	/* use volatile pointer to prevent code rearrangement */
-	volatile PROC_HDR *procglobal = ProcGlobal;
-
-	return procglobal->startupBufferPinWaitBufId;
+	return pg_atomic_read_u32(&ProcGlobal->startupBufferPinWaitBufId);
 }
 
 /*
diff --git a/src/include/storage/proc.h b/src/include/storage/proc.h
index 03a1a466fa8..e2034255124 100644
--- a/src/include/storage/proc.h
+++ b/src/include/storage/proc.h
@@ -499,7 +499,7 @@ typedef struct PROC_HDR
 	/* Current shared estimate of appropriate spins_per_delay value */
 	int			spins_per_delay;
 	/* Buffer id of the buffer that Startup process waits for 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] 560+ messages in thread