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Need to reset local buffer pin counts, not only shared buffer pins,

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before we attempt any file deletions in ShutdownPostgres.  Per Tatsuo.
This commit is contained in:
Tom Lane 2005-03-18 16:16:09 +00:00
parent 1f418555cf
commit 88164799ce
3 changed files with 19 additions and 3 deletions
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16
src/backend/storage/buffer/localbuf.c
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@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/buffer/localbuf.c,v 1.63 2005/03/04 20:21:06 tgl Exp $ * $PostgreSQL: pgsql/src/backend/storage/buffer/localbuf.c,v 1.64 2005/03/18 16:16:09 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -259,3 +259,17 @@ AtEOXact_LocalBuffers(bool isCommit)
} }
#endif #endif
} }
/*
* AtProcExit_LocalBuffers - ensure we have dropped pins during backend exit.
*
* This is just like AtProcExit_Buffers, but for local buffers. We have
* to drop pins to ensure that any attempt to drop temp files doesn't
* fail in DropRelFileNodeBuffers.
*/
void
AtProcExit_LocalBuffers(void)
{
/* just zero the refcounts ... */
MemSet(LocalRefCount, 0, NLocBuffer * sizeof(*LocalRefCount));
}

3
src/backend/utils/init/postinit.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.142 2005/03/18 05:24:13 tgl Exp $ * $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.143 2005/03/18 16:16:09 tgl Exp $
* *
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
@ -515,6 +515,7 @@ ShutdownPostgres(int code, Datum arg)
*/ */
LWLockReleaseAll(); LWLockReleaseAll();
AtProcExit_Buffers(); AtProcExit_Buffers();
AtProcExit_LocalBuffers();
/* /*
* In case a transaction is open, delete any files it created. This * In case a transaction is open, delete any files it created. This

3
src/include/storage/bufmgr.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $PostgreSQL: pgsql/src/include/storage/bufmgr.h,v 1.90 2005/03/04 20:21:07 tgl Exp $ * $PostgreSQL: pgsql/src/include/storage/bufmgr.h,v 1.91 2005/03/18 16:16:09 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -158,6 +158,7 @@ extern void BufferSync(void);
extern void BgBufferSync(void); extern void BgBufferSync(void);
extern void InitLocalBuffer(void); extern void InitLocalBuffer(void);
extern void AtProcExit_LocalBuffers(void);
/* in freelist.c */ /* in freelist.c */
extern void StrategyHintVacuum(bool vacuum_active); extern void StrategyHintVacuum(bool vacuum_active);