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Clarify C comment that O_SYNC/O_FSYNC are really the same settting, as
author
Bruce Momjian
<bruce@momjian.us>
Fri, 11 Mar 2011 01:02:52 +0000
(20:02 -0500)
committer
Bruce Momjian
<bruce@momjian.us>
Fri, 11 Mar 2011 01:02:52 +0000
(20:02 -0500)
opposed to O_DSYNC.
src/backend/access/transam/xlog.c
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diff --git
a/src/backend/access/transam/xlog.c
b/src/backend/access/transam/xlog.c
index
3aa22bc
..
15af669
100644
(file)
--- a/
src/backend/access/transam/xlog.c
+++ b/
src/backend/access/transam/xlog.c
@@
-8600,7
+8600,7
@@
get_sync_bit(int method)
/*
* Optimize writes by bypassing kernel cache with O_DIRECT when using
- * O_SYNC
, O_DSYNC or O_FSYNC.
But only if archiving and streaming are
+ * O_SYNC
/O_FSYNC and O_DSYNC.
But only if archiving and streaming are
* disabled, otherwise the archive command or walsender process will read
* the WAL soon after writing it, which is guaranteed to cause a physical
* read if we bypassed the kernel cache. We also skip the