From 8d09e25693615320f03f3b1fd3412a90cbaa28b7 Mon Sep 17 00:00:00 2001
From: Jan Wieck <JanWieck@Yahoo.com>
Date: Wed, 4 Feb 2004 01:24:53 +0000
Subject: Backing out the background writer sync() option.

Jan
---
 src/backend/storage/buffer/bufmgr.c | 51 +------------------------------------
 1 file changed, 1 insertion(+), 50 deletions(-)

(limited to 'src/backend/storage/buffer/bufmgr.c')

diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c
index 49e2315dad4..cb82159aff0 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 1.154 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
  */
-- 
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