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Commit86fdb32

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Remove freeBackends counter from the sinval shared memory area. We used to
use it to help enforce superuser_reserved_backends, but since 8.1 it'sjust been dead weight.
1 parentb163baa commit86fdb32

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1 file changed

+1
-9
lines changed

1 file changed

+1
-9
lines changed

‎src/backend/storage/ipc/sinvaladt.c

Lines changed: 1 addition & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
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*
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* IDENTIFICATION
11-
* $PostgreSQL: pgsql/src/backend/storage/ipc/sinvaladt.c,v 1.69 2008/03/18 12:36:43 alvherre Exp $
11+
* $PostgreSQL: pgsql/src/backend/storage/ipc/sinvaladt.c,v 1.70 2008/06/17 20:07:08 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -82,7 +82,6 @@ typedef struct SISeg
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intmaxMsgNum;/* next message number to be assigned */
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intlastBackend;/* index of last active procState entry, +1 */
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intmaxBackends;/* size of procState array */
85-
intfreeBackends;/* number of empty procState slots */
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/*
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* Next LocalTransactionId to use for each idle backend slot. We keep
@@ -157,7 +156,6 @@ CreateSharedInvalidationState(void)
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shmInvalBuffer->maxMsgNum=0;
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shmInvalBuffer->lastBackend=0;
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shmInvalBuffer->maxBackends=MaxBackends;
160-
shmInvalBuffer->freeBackends=MaxBackends;
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/* The buffer[] array is initially all unused, so we need not fill it */
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@@ -223,9 +221,6 @@ SharedInvalBackendInit(void)
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/* Advertise assigned backend ID in MyProc */
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MyProc->backendId=MyBackendId;
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226-
/* Reduce free slot count */
227-
segP->freeBackends--;
228-
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/* Fetch next local transaction ID into local memory */
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nextLocalTransactionId=segP->nextLXID[MyBackendId-1];
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@@ -273,9 +268,6 @@ CleanupInvalidationState(int status, Datum arg)
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}
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segP->lastBackend=i;
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276-
/* Adjust free slot count */
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segP->freeBackends++;
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LWLockRelease(SInvalLock);
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}
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