From: Andres Freund <andres@anarazel.de>
Date: Wed, 10 Jun 2015 11:04:57 +0000 (+0200)
Subject: Add missing check for wal_debug GUC.
X-Git-Url: http://git.postgresql.org/gitweb/review?a=commitdiff_plain;h=9e4b9629683afda1374d2b09fa37b971d27ea043;p=users%2Fandresfreund%2Fpostgres.git

Add missing check for wal_debug GUC.

9a20a9b2 added a new elog(), enabled when WAL_DEBUG is defined. The
other WAL_DEBUG dependant messages check for the wal_debug GUC, but this
one did not.

Backpatch to 9.4, the first release containing 9a20a9b2.
---

diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 150d56afb8..80389ba8e1 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -1983,7 +1983,7 @@ AdvanceXLInsertBuffer(XLogRecPtr upto, bool opportunistic)
 	LWLockRelease(WALBufMappingLock);
 
 #ifdef WAL_DEBUG
-	if (npages > 0)
+	if (XLOG_DEBUG && npages > 0)
 	{
 		elog(DEBUG1, "initialized %d pages, upto %X/%X",
 			 npages, (uint32) (NewPageEndPtr >> 32), (uint32) NewPageEndPtr);