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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-21 05:05:26 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-21 05:05:26 +0000
commite75d99818dd3940be997520e64db8c9e3b207e39 (patch)
tree0003ca0de74fcc8d18433e34ea68d2e7aaf06b7c /src/backend/storage/smgr/smgr.c
parentReleasing progress-linux version 15.6-0+deb12u1~progress6.99u1. (diff)
downloadpostgresql-15-e75d99818dd3940be997520e64db8c9e3b207e39.tar.xz
postgresql-15-e75d99818dd3940be997520e64db8c9e3b207e39.zip
Merging upstream version 15.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/backend/storage/smgr/smgr.c')
-rw-r--r--src/backend/storage/smgr/smgr.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/storage/smgr/smgr.c b/src/backend/storage/smgr/smgr.c
index 631733b..8ded269 100644
--- a/src/backend/storage/smgr/smgr.c
+++ b/src/backend/storage/smgr/smgr.c
@@ -604,8 +604,9 @@ BlockNumber
smgrnblocks_cached(SMgrRelation reln, ForkNumber forknum)
{
/*
- * For now, we only use cached values in recovery due to lack of a shared
- * invalidation mechanism for changes in file size.
+ * For now, this function uses cached values only in recovery due to lack
+ * of a shared invalidation mechanism for changes in file size. Code
+ * elsewhere reads smgr_cached_nblocks and copes with stale data.
*/
if (InRecovery && reln->smgr_cached_nblocks[forknum] != InvalidBlockNumber)
return reln->smgr_cached_nblocks[forknum];