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authorAndres Freund <andres@anarazel.de>2023-04-05 18:57:29 -0700
committerAndres Freund <andres@anarazel.de>2023-04-05 18:57:29 -0700
commitacab1b0914e426d28789731f50f5964dd4d2f054 (patch)
tree0c13ad1fa00b1fe9155cc40146b4d7568aa5b468 /src/backend/access/gist
parentfcdda1e4b50249c344e510ea93d4bd74d2743430 (diff)
downloadpostgresql-acab1b0914e426d28789731f50f5964dd4d2f054.tar.gz
postgresql-acab1b0914e426d28789731f50f5964dd4d2f054.zip
Convert many uses of ReadBuffer[Extended](P_NEW) to ExtendBufferedRel()
A few places are not converted. Some because they are tackled in later commits (e.g. hio.c, xlogutils.c), some because they are more complicated (e.g. brin_pageops.c). Having a few users of ReadBuffer(P_NEW) is good anyway, to ensure the backward compat path stays working. Discussion: https://postgr.es/m/20221029025420.eplyow6k7tgu6he3@awork3.anarazel.de
Diffstat (limited to 'src/backend/access/gist')
-rw-r--r--src/backend/access/gist/gist.c4
-rw-r--r--src/backend/access/gist/gistutil.c13
2 files changed, 4 insertions, 13 deletions
diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c
index c3a3d49bca0..b5c1754e788 100644
--- a/src/backend/access/gist/gist.c
+++ b/src/backend/access/gist/gist.c
@@ -134,8 +134,8 @@ gistbuildempty(Relation index)
Buffer buffer;
/* Initialize the root page */
- buffer = ReadBufferExtended(index, INIT_FORKNUM, P_NEW, RBM_NORMAL, NULL);
- LockBuffer(buffer, BUFFER_LOCK_EXCLUSIVE);
+ buffer = ExtendBufferedRel(EB_REL(index), INIT_FORKNUM, NULL,
+ EB_SKIP_EXTENSION_LOCK | EB_LOCK_FIRST);
/* Initialize and xlog buffer */
START_CRIT_SECTION();
diff --git a/src/backend/access/gist/gistutil.c b/src/backend/access/gist/gistutil.c
index a607464b979..f9f51152b8e 100644
--- a/src/backend/access/gist/gistutil.c
+++ b/src/backend/access/gist/gistutil.c
@@ -824,7 +824,6 @@ Buffer
gistNewBuffer(Relation r, Relation heaprel)
{
Buffer buffer;
- bool needLock;
/* First, try to get a page from FSM */
for (;;)
@@ -878,16 +877,8 @@ gistNewBuffer(Relation r, Relation heaprel)
}
/* Must extend the file */
- needLock = !RELATION_IS_LOCAL(r);
-
- if (needLock)
- LockRelationForExtension(r, ExclusiveLock);
-
- buffer = ReadBuffer(r, P_NEW);
- LockBuffer(buffer, GIST_EXCLUSIVE);
-
- if (needLock)
- UnlockRelationForExtension(r, ExclusiveLock);
+ buffer = ExtendBufferedRel(EB_REL(r), MAIN_FORKNUM, NULL,
+ EB_LOCK_FIRST);
return buffer;
}