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Phase 1 of fix for 'SMgrRelation hashtable corrupted' problem. This

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is the minimum required fix.  I want to look next at taking advantage of
it by simplifying the message semantics in the shared inval message queue,
but that part can be held over for 8.1 if it turns out too ugly.
This commit is contained in:
Tom Lane
2005-01-10 20:02:24 +00:00
parent cc7cd8774a
commit 0ce4d56924
14 changed files with 121 additions and 107 deletions
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14
src/backend/storage/buffer/bufmgr.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.184 2005/01/03 18:49:41 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.185 2005/01/10 20:02:21 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -131,8 +131,7 @@ ReadBufferInternal(Relation reln, BlockNumber blockNum,
isLocalBuf = reln->rd_istemp;
/* Open it at the smgr level if not already done */
if (reln->rd_smgr == NULL)
reln->rd_smgr = smgropen(reln->rd_node);
RelationOpenSmgr(reln);
/* Substitute proper block number if caller asked for P_NEW */
if (isExtend)
@ -1130,8 +1129,7 @@ BlockNumber
RelationGetNumberOfBlocks(Relation relation)
{
/* Open it at the smgr level if not already done */
if (relation->rd_smgr == NULL)
relation->rd_smgr = smgropen(relation->rd_node);
RelationOpenSmgr(relation);
return smgrnblocks(relation->rd_smgr);
}
@ -1147,8 +1145,7 @@ void
RelationTruncate(Relation rel, BlockNumber nblocks)
{
/* Open it at the smgr level if not already done */
if (rel->rd_smgr == NULL)
rel->rd_smgr = smgropen(rel->rd_node);
RelationOpenSmgr(rel);
/* Make sure rd_targblock isn't pointing somewhere past end */
rel->rd_targblock = InvalidBlockNumber;
@ -1445,8 +1442,7 @@ FlushRelationBuffers(Relation rel, BlockNumber firstDelBlock)
BufferDesc *bufHdr;
/* Open rel at the smgr level if not already done */
if (rel->rd_smgr == NULL)
rel->rd_smgr = smgropen(rel->rd_node);
RelationOpenSmgr(rel);
if (rel->rd_istemp)
{