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Fix bgwriter's failure to release buffer pins and open files after an

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error.  This probably explains bug #2099 and could also account for
mysterious VACUUM hangups.
This commit is contained in:
Tom Lane
2005-12-08 19:19:22 +00:00
parent 96e1fbe396
commit aaa3dfd26c
2 changed files with 21 additions and 6 deletions
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8
src/backend/utils/resowner/resowner.c
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@ -14,7 +14,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/resowner/resowner.c,v 1.16 2005/11/22 18:17:27 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/resowner/resowner.c,v 1.17 2005/12/08 19:19:22 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -437,7 +437,7 @@ UnregisterResourceReleaseCallback(ResourceReleaseCallback callback, void *arg)
* of memory, it's critical to do so *before* acquiring the resource.
*
* We allow the case owner == NULL because the bufmgr is sometimes invoked
* outside any transaction (for example, in the bgwriter).
* outside any transaction (for example, during WAL recovery).
*/
void
ResourceOwnerEnlargeBuffers(ResourceOwner owner)
@ -470,7 +470,7 @@ ResourceOwnerEnlargeBuffers(ResourceOwner owner)
* Caller must have previously done ResourceOwnerEnlargeBuffers()
*
* We allow the case owner == NULL because the bufmgr is sometimes invoked
* outside any transaction (for example, in the bgwriter).
* outside any transaction (for example, during WAL recovery).
*/
void
ResourceOwnerRememberBuffer(ResourceOwner owner, Buffer buffer)
@ -487,7 +487,7 @@ ResourceOwnerRememberBuffer(ResourceOwner owner, Buffer buffer)
* Forget that a buffer pin is owned by a ResourceOwner
*
* We allow the case owner == NULL because the bufmgr is sometimes invoked
* outside any transaction (for example, in the bgwriter).
* outside any transaction (for example, during WAL recovery).
*/
void
ResourceOwnerForgetBuffer(ResourceOwner owner, Buffer buffer)