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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2004-05-31 20:31:33 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2004-05-31 20:31:33 +0000 |
| commit | 91d20ff7aa4c61e570cf652bb3a48fd18fcf9d9d (patch) | |
| tree | dce0d78c487cf062284405192f7cf221f5bfa7fb /src/backend/storage/buffer/bufmgr.c | |
| parent | e674707968059459960304981fc0a1d7a6049e24 (diff) | |
| download | postgresql-91d20ff7aa4c61e570cf652bb3a48fd18fcf9d9d.tar.gz postgresql-91d20ff7aa4c61e570cf652bb3a48fd18fcf9d9d.zip | |
Additional mop-up for sync-to-fsync changes: avoid issuing fsyncs for
temp tables, and avoid WAL-logging truncations of temp tables. Do issue
fsync on truncated files (not sure this is necessary but it seems like
a good idea).
Diffstat (limited to 'src/backend/storage/buffer/bufmgr.c')
| -rw-r--r-- | src/backend/storage/buffer/bufmgr.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c index bc6c0f6993c..400fbcf1ff7 100644 --- a/src/backend/storage/buffer/bufmgr.c +++ b/src/backend/storage/buffer/bufmgr.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.168 2004/05/31 19:24:05 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.169 2004/05/31 20:31:33 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -182,7 +182,8 @@ ReadBufferInternal(Relation reln, BlockNumber blockNum, { /* new buffers are zero-filled */ MemSet((char *) MAKE_PTR(bufHdr->data), 0, BLCKSZ); - smgrextend(reln->rd_smgr, blockNum, (char *) MAKE_PTR(bufHdr->data)); + smgrextend(reln->rd_smgr, blockNum, (char *) MAKE_PTR(bufHdr->data), + reln->rd_istemp); } else { @@ -915,8 +916,8 @@ BufferGetFileNode(Buffer buffer) * NOTE: this actually just passes the buffer contents to the kernel; the * real write to disk won't happen until the kernel feels like it. This * is okay from our point of view since we can redo the changes from WAL. - * However, we will need to force the changes to disk via sync/fsync - * before we can checkpoint WAL. + * However, we will need to force the changes to disk via fsync before + * we can checkpoint WAL. * * BufMgrLock must be held at entry, and the buffer must be pinned. The * caller is also responsible for doing StartBufferIO/TerminateBufferIO. @@ -979,7 +980,8 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln) */ smgrwrite(reln, buf->tag.blockNum, - (char *) MAKE_PTR(buf->data)); + (char *) MAKE_PTR(buf->data), + false); /* Pop the error context stack */ error_context_stack = errcontext.previous; @@ -1033,7 +1035,7 @@ RelationTruncate(Relation rel, BlockNumber nblocks) rel->rd_targblock = InvalidBlockNumber; /* Do the real work */ - smgrtruncate(rel->rd_smgr, nblocks); + smgrtruncate(rel->rd_smgr, nblocks, rel->rd_istemp); } /* --------------------------------------------------------------------- @@ -1351,7 +1353,8 @@ FlushRelationBuffers(Relation rel, BlockNumber firstDelBlock) smgrwrite(rel->rd_smgr, bufHdr->tag.blockNum, - (char *) MAKE_PTR(bufHdr->data)); + (char *) MAKE_PTR(bufHdr->data), + true); bufHdr->flags &= ~(BM_DIRTY | BM_JUST_DIRTIED); bufHdr->cntxDirty = false; |