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help / color / mirror / Atom feedFrom: Andres Freund <[email protected]>
Subject: [PATCH v8 1/5] Zero initialize instr_time uses causing compiler warnings
Date: Mon, 16 Jan 2023 10:04:42 -0800
These are all not necessary from a correctness POV. However, in a subsequent
patch instr_time will be simplified to an int64, at which point gcc would
otherwise start to warn about the changed places.
Author:
Reviewed-by:
Discussion: https://postgr.es/m/[email protected]
Backpatch:
---
src/backend/access/transam/xlog.c | 4 ++++
src/backend/storage/buffer/bufmgr.c | 4 ++++
src/backend/storage/file/buffile.c | 4 ++++
src/backend/storage/ipc/latch.c | 2 ++
src/bin/psql/common.c | 6 ++++++
5 files changed, 20 insertions(+)
diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index cc0d9a05d9f..fb4c860bdea 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -2191,6 +2191,8 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible)
/* Measure I/O timing to write WAL data */
if (track_wal_io_timing)
INSTR_TIME_SET_CURRENT(start);
+ else
+ INSTR_TIME_SET_ZERO(start);
pgstat_report_wait_start(WAIT_EVENT_WAL_WRITE);
written = pg_pwrite(openLogFile, from, nleft, startoffset);
@@ -8151,6 +8153,8 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli)
/* Measure I/O timing to sync the WAL file */
if (track_wal_io_timing)
INSTR_TIME_SET_CURRENT(start);
+ else
+ INSTR_TIME_SET_ZERO(start);
pgstat_report_wait_start(WAIT_EVENT_WAL_SYNC);
switch (sync_method)
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c
index 8075828e8a6..800a4248c95 100644
--- a/src/backend/storage/buffer/bufmgr.c
+++ b/src/backend/storage/buffer/bufmgr.c
@@ -1017,6 +1017,8 @@ ReadBuffer_common(SMgrRelation smgr, char relpersistence, ForkNumber forkNum,
if (track_io_timing)
INSTR_TIME_SET_CURRENT(io_start);
+ else
+ INSTR_TIME_SET_ZERO(io_start);
smgrread(smgr, forkNum, blockNum, (char *) bufBlock);
@@ -2902,6 +2904,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln)
if (track_io_timing)
INSTR_TIME_SET_CURRENT(io_start);
+ else
+ INSTR_TIME_SET_ZERO(io_start);
/*
* bufToWrite is either the shared buffer or a copy, as appropriate.
diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c
index c5464b6aa62..0a51624df3b 100644
--- a/src/backend/storage/file/buffile.c
+++ b/src/backend/storage/file/buffile.c
@@ -446,6 +446,8 @@ BufFileLoadBuffer(BufFile *file)
if (track_io_timing)
INSTR_TIME_SET_CURRENT(io_start);
+ else
+ INSTR_TIME_SET_ZERO(io_start);
/*
* Read whatever we can get, up to a full bufferload.
@@ -525,6 +527,8 @@ BufFileDumpBuffer(BufFile *file)
if (track_io_timing)
INSTR_TIME_SET_CURRENT(io_start);
+ else
+ INSTR_TIME_SET_ZERO(io_start);
bytestowrite = FileWrite(thisfile,
file->buffer.data + wpos,
diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c
index d79d71a8515..f4123e7de7e 100644
--- a/src/backend/storage/ipc/latch.c
+++ b/src/backend/storage/ipc/latch.c
@@ -1401,6 +1401,8 @@ WaitEventSetWait(WaitEventSet *set, long timeout,
Assert(timeout >= 0 && timeout <= INT_MAX);
cur_timeout = timeout;
}
+ else
+ INSTR_TIME_SET_ZERO(start_time);
pgstat_report_wait_start(wait_event_info);
diff --git a/src/bin/psql/common.c b/src/bin/psql/common.c
index 00627830c47..f907f5d4e8d 100644
--- a/src/bin/psql/common.c
+++ b/src/bin/psql/common.c
@@ -1276,6 +1276,8 @@ DescribeQuery(const char *query, double *elapsed_msec)
if (timing)
INSTR_TIME_SET_CURRENT(before);
+ else
+ INSTR_TIME_SET_ZERO(before);
/*
* To parse the query but not execute it, we prepare it, using the unnamed
@@ -1406,6 +1408,8 @@ ExecQueryAndProcessResults(const char *query,
if (timing)
INSTR_TIME_SET_CURRENT(before);
+ else
+ INSTR_TIME_SET_ZERO(before);
if (pset.bind_flag)
success = PQsendQueryParams(pset.db, query, pset.bind_nparams, NULL, (const char * const *) pset.bind_params, NULL, NULL, 0);
@@ -1702,6 +1706,8 @@ ExecQueryUsingCursor(const char *query, double *elapsed_msec)
if (timing)
INSTR_TIME_SET_CURRENT(before);
+ else
+ INSTR_TIME_SET_ZERO(before);
/* if we're not in a transaction, start one */
if (PQtransactionStatus(pset.db) == PQTRANS_IDLE)
--
2.38.0
--vt42kbp2j7rjcapp
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v8-0002-instr_time-Represent-time-as-an-int64-on-all-plat.patch"
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