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I posted some bufmgr cleanup a few weeks ago, but it conflicted with

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some concurrent changes Jan was making to the bufmgr. Here's an
updated version of the patch -- it should apply cleanly to CVS
HEAD and passes the regression tests.

This patch makes the following changes:

     - remove the UnlockAndReleaseBuffer() and UnlockAndWriteBuffer()
       macros, and replace uses of them with calls to the appropriate
       functions.

     - remove a bunch of #ifdef BMTRACE code: it is ugly & broken
       (i.e. it doesn't compile)

     - make BufferReplace() return a bool, not an int

     - cleanup some logic in bufmgr.c; should be functionality
       equivalent to the previous code, just cleaner now

     - remove the BM_PRIVATE flag as it is unused

     - improve a few comments, etc.
This commit is contained in:
Neil Conway
2003-12-14 00:34:47 +00:00
parent 81e9455150
commit fef0c8345a
10 changed files with 134 additions and 323 deletions
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14
src/backend/storage/buffer/buf_table.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/buffer/buf_table.c,v 1.33 2003/11/29 19:51:56 pgsql Exp $
* $PostgreSQL: pgsql/src/backend/storage/buffer/buf_table.c,v 1.34 2003/12/14 00:34:47 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@ -117,15 +117,3 @@ BufTableDelete(BufferTag *tagPtr)
return TRUE;
}
/* prints out collision stats for the buf table */
#ifdef NOT_USED
void
DBG_LookupListCheck(int nlookup)
{
nlookup = 10;
hash_stats("Shared", SharedBufHash);
}
#endif