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Backing out the background writer sync() option.

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Jan
This commit is contained in:
Jan Wieck
2004-02-04 01:24:53 +00:00
parent e66fcce672
commit 8d09e25693
4 changed files with 5 additions and 68 deletions
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51
src/backend/storage/buffer/bufmgr.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.154 2004/01/30 15:57:03 momjian Exp $
* $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.155 2004/02/04 01:24:53 wieck Exp $
*
*-------------------------------------------------------------------------
*/
@ -55,7 +55,6 @@
#include "storage/proc.h"
#include "storage/smgr.h"
#include "utils/relcache.h"
#include "utils/guc.h"
#include "pgstat.h"
@ -66,23 +65,9 @@
/* GUC variable */
bool zero_damaged_pages = false;
#define BGWRITER_FLUSH_NONE 0
#define BGWRITER_FLUSH_NONE_STR "none"
#define BGWRITER_FLUSH_SYNC 1
#define BGWRITER_FLUSH_SYNC_STR "sync"
#define BGWRITER_FLUSH_DEFAULT BGWRITER_FLUSH_NONE
#define BGWRITER_FLUSH_DEFAULT_STR BGWRITER_FLUSH_NONE_STR
int BgWriterDelay = 200;
int BgWriterPercent = 1;
int BgWriterMaxpages = 100;
int BgWriterFlushMethod = BGWRITER_FLUSH_NONE;
char *BgWriterFlushMethod_str = NULL;
const char BgWriterFlushMethod_default[] = BGWRITER_FLUSH_DEFAULT_STR;
const char *BgWriterAssignSyncMethod(const char *method,
bool doit, GucSource source);
static void WaitIO(BufferDesc *buf);
static void StartBufferIO(BufferDesc *buf, bool forInput);
@ -1041,19 +1026,6 @@ BufferBackgroundWriter(void)
if (InterruptPending)
return;
/*
* Perform the configured buffer flush method
*/
switch (BgWriterFlushMethod)
{
case BGWRITER_FLUSH_NONE:
break;
case BGWRITER_FLUSH_SYNC:
smgrsync();
break;
}
/*
* Nap for the configured time or sleep for 10 seconds if
* there was nothing to do at all.
@ -1062,27 +1034,6 @@ BufferBackgroundWriter(void)
}
}
const char *
BgWriterAssignSyncMethod(const char *method, bool doit, GucSource source)
{
int new_flush_method;
if (strcasecmp(method, BGWRITER_FLUSH_NONE_STR) == 0)
new_flush_method = BGWRITER_FLUSH_NONE;
else
if (strcasecmp(method, BGWRITER_FLUSH_SYNC_STR) == 0)
new_flush_method = BGWRITER_FLUSH_SYNC;
else
return NULL;
if (!doit)
return method;
BgWriterFlushMethod = new_flush_method;
return method;
}
/*
* Do whatever is needed to prepare for commit at the bufmgr and smgr levels
*/