Move call of MarkBufferDirty() before XLogInsert() as required.

Many thanks to Heikki Linnakangas <heikki@enterprisedb.com> for his
sharp eyes.

src/backend/access/gin/ginbtree.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *			$PostgreSQL: pgsql/src/backend/access/gin/ginbtree.c,v 1.8 2007/02/01 04:16:07 neilc Exp $
+ *			$PostgreSQL: pgsql/src/backend/access/gin/ginbtree.c,v 1.9 2007/06/05 12:47:49 teodor Exp $
  *-------------------------------------------------------------------------
  */
 
@@ -294,6 +294,8 @@ ginInsertValue(GinBtree btree, GinBtreeStack *stack)
 			START_CRIT_SECTION();
 			btree->placeToPage(btree, stack->buffer, stack->off, &rdata);
 
+			MarkBufferDirty(stack->buffer);
+
 			if (!btree->index->rd_istemp)
 			{
 				XLogRecPtr	recptr;
@@ -303,7 +305,6 @@ ginInsertValue(GinBtree btree, GinBtreeStack *stack)
 				PageSetTLI(page, ThisTimeLineID);
 			}
 
-			MarkBufferDirty(stack->buffer);
 			UnlockReleaseBuffer(stack->buffer);
 			END_CRIT_SECTION();
 
@@ -351,6 +352,11 @@ ginInsertValue(GinBtree btree, GinBtreeStack *stack)
 				GinInitBuffer(stack->buffer, GinPageGetOpaque(newlpage)->flags & ~GIN_LEAF);
 				PageRestoreTempPage(newlpage, lpage);
 				btree->fillRoot(btree, stack->buffer, lbuffer, rbuffer);
+
+				MarkBufferDirty(rbuffer);
+				MarkBufferDirty(lbuffer);
+				MarkBufferDirty(stack->buffer);
+
 				if (!btree->index->rd_istemp)
 				{
 					XLogRecPtr	recptr;
@@ -364,11 +370,8 @@ ginInsertValue(GinBtree btree, GinBtreeStack *stack)
 					PageSetTLI(rpage, ThisTimeLineID);
 				}
 
-				MarkBufferDirty(rbuffer);
 				UnlockReleaseBuffer(rbuffer);
-				MarkBufferDirty(lbuffer);
 				UnlockReleaseBuffer(lbuffer);
-				MarkBufferDirty(stack->buffer);
 				UnlockReleaseBuffer(stack->buffer);
 
 				END_CRIT_SECTION();
@@ -389,6 +392,10 @@ ginInsertValue(GinBtree btree, GinBtreeStack *stack)
 
 				START_CRIT_SECTION();
 				PageRestoreTempPage(newlpage, lpage);
+
+				MarkBufferDirty(rbuffer);
+				MarkBufferDirty(stack->buffer);
+
 				if (!btree->index->rd_istemp)
 				{
 					XLogRecPtr	recptr;
@@ -399,9 +406,7 @@ ginInsertValue(GinBtree btree, GinBtreeStack *stack)
 					PageSetLSN(rpage, recptr);
 					PageSetTLI(rpage, ThisTimeLineID);
 				}
-				MarkBufferDirty(rbuffer);
 				UnlockReleaseBuffer(rbuffer);
-				MarkBufferDirty(stack->buffer);
 				END_CRIT_SECTION();
 			}
 		}

src/backend/access/gin/gininsert.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *			$PostgreSQL: pgsql/src/backend/access/gin/gininsert.c,v 1.8 2007/02/01 04:16:08 neilc Exp $
+ *			$PostgreSQL: pgsql/src/backend/access/gin/gininsert.c,v 1.9 2007/06/05 12:47:49 teodor Exp $
  *-------------------------------------------------------------------------
  */
 
@@ -48,6 +48,8 @@ createPostingTree(Relation index, ItemPointerData *items, uint32 nitems)
 	memcpy(GinDataPageGetData(page), items, sizeof(ItemPointerData) * nitems);
 	GinPageGetOpaque(page)->maxoff = nitems;
 
+	MarkBufferDirty(buffer);
+
 	if (!index->rd_istemp)
 	{
 		XLogRecPtr	recptr;
@@ -76,7 +78,6 @@ createPostingTree(Relation index, ItemPointerData *items, uint32 nitems)
 
 	}
 
-	MarkBufferDirty(buffer);
 	UnlockReleaseBuffer(buffer);
 
 	END_CRIT_SECTION();
@@ -281,6 +282,8 @@ ginbuild(PG_FUNCTION_ARGS)
 	buffer = GinNewBuffer(index);
 	START_CRIT_SECTION();
 	GinInitBuffer(buffer, GIN_LEAF);
+	MarkBufferDirty(buffer);
+
 	if (!index->rd_istemp)
 	{
 		XLogRecPtr	recptr;
@@ -301,7 +304,6 @@ ginbuild(PG_FUNCTION_ARGS)
 
 	}
 
-	MarkBufferDirty(buffer);
 	UnlockReleaseBuffer(buffer);
 	END_CRIT_SECTION();
 

src/backend/access/gin/ginvacuum.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *			$PostgreSQL: pgsql/src/backend/access/gin/ginvacuum.c,v 1.14 2007/06/04 15:56:28 teodor Exp $
+ *			$PostgreSQL: pgsql/src/backend/access/gin/ginvacuum.c,v 1.15 2007/06/05 12:47:49 teodor Exp $
  *-------------------------------------------------------------------------
  */
 
@@ -191,9 +191,9 @@ ginVacuumPostingTreeLeaves(GinVacuumState *gvs, BlockNumber blkno, bool isRoot,
 			pfree(cleaned);
 			GinPageGetOpaque(page)->maxoff = newMaxOff;
 
+			MarkBufferDirty(buffer);
 			xlogVacuumPage(gvs->index, buffer);
 
-			MarkBufferDirty(buffer);
 			END_CRIT_SECTION();
 
 			/* if root is a leaf page, we don't desire further processing */
@@ -282,6 +282,11 @@ ginDeletePage(GinVacuumState *gvs, BlockNumber deleteBlkno, BlockNumber leftBlkn
 	 */
 	GinPageGetOpaque(page)->flags = GIN_DELETED;
 
+	MarkBufferDirty(pBuffer);
+	if (leftBlkno != InvalidBlockNumber)
+		MarkBufferDirty(lBuffer);
+	MarkBufferDirty(dBuffer);
+
 	if (!gvs->index->rd_istemp)
 	{
 		XLogRecPtr	recptr;
@@ -339,18 +344,13 @@ ginDeletePage(GinVacuumState *gvs, BlockNumber deleteBlkno, BlockNumber leftBlkn
 		}
 	}
 
-	MarkBufferDirty(pBuffer);
 	if (!isParentRoot)
 		LockBuffer(pBuffer, GIN_UNLOCK);
 	ReleaseBuffer(pBuffer);
 
 	if (leftBlkno != InvalidBlockNumber)
-	{
-		MarkBufferDirty(lBuffer);
 		UnlockReleaseBuffer(lBuffer);
-	}
 
-	MarkBufferDirty(dBuffer);
 	UnlockReleaseBuffer(dBuffer);
 
 	END_CRIT_SECTION();
@@ -636,8 +636,8 @@ ginbulkdelete(PG_FUNCTION_ARGS)
 		{
 			START_CRIT_SECTION();
 			PageRestoreTempPage(resPage, page);
-			xlogVacuumPage(gvs.index, buffer);
 			MarkBufferDirty(buffer);
+			xlogVacuumPage(gvs.index, buffer);
 			UnlockReleaseBuffer(buffer);
 			END_CRIT_SECTION();
 		}