diff options
Diffstat (limited to 'src/backend/storage')
| -rw-r--r-- | src/backend/storage/ipc/sinval.c | 6 | ||||
| -rw-r--r-- | src/backend/storage/lmgr/lmgr.c | 9 |
2 files changed, 11 insertions, 4 deletions
diff --git a/src/backend/storage/ipc/sinval.c b/src/backend/storage/ipc/sinval.c index 9ab16b16ed1..8499615f14f 100644 --- a/src/backend/storage/ipc/sinval.c +++ b/src/backend/storage/ipc/sinval.c @@ -22,6 +22,9 @@ #include "utils/inval.h" +uint64 SharedInvalidMessageCounter; + + /* * Because backends sitting idle will not be reading sinval events, we * need a way to give an idle backend a swift kick in the rear and make @@ -90,6 +93,7 @@ ReceiveSharedInvalidMessages( { SharedInvalidationMessage *msg = &messages[nextmsg++]; + SharedInvalidMessageCounter++; invalFunction(msg); } @@ -106,6 +110,7 @@ ReceiveSharedInvalidMessages( { /* got a reset message */ elog(DEBUG4, "cache state reset"); + SharedInvalidMessageCounter++; resetFunction(); break; /* nothing more to do */ } @@ -118,6 +123,7 @@ ReceiveSharedInvalidMessages( { SharedInvalidationMessage *msg = &messages[nextmsg++]; + SharedInvalidMessageCounter++; invalFunction(msg); } diff --git a/src/backend/storage/lmgr/lmgr.c b/src/backend/storage/lmgr/lmgr.c index 859b3852dbd..3ac098b2a9c 100644 --- a/src/backend/storage/lmgr/lmgr.c +++ b/src/backend/storage/lmgr/lmgr.c @@ -81,10 +81,11 @@ LockRelationOid(Oid relid, LOCKMODE lockmode) /* * Now that we have the lock, check for invalidation messages, so that we * will update or flush any stale relcache entry before we try to use it. - * We can skip this in the not-uncommon case that we already had the same - * type of lock being requested, since then no one else could have - * modified the relcache entry in an undesirable way. (In the case where - * our own xact modifies the rel, the relcache update happens via + * RangeVarGetRelid() specifically relies on us for this. We can skip + * this in the not-uncommon case that we already had the same type of lock + * being requested, since then no one else could have modified the + * relcache entry in an undesirable way. (In the case where our own xact + * modifies the rel, the relcache update happens via * CommandCounterIncrement, not here.) */ if (res != LOCKACQUIRE_ALREADY_HELD) |