From 7b07b821da023ce9003d4ff65e9a29f6b8262317 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=E9=BB=84=E6=B6=9B?= <huangtao@rock-chips.com>
Date: Sat, 30 Jul 2011 22:45:08 +0800
Subject: [PATCH] Revert "Fix yaffs checkpoint out of space crash"

This reverts commit 8ff4860c2778c0be92a63808036de337d13fa864.
---
 fs/yaffs2/yaffs_checkptrw.c | 26 ++++++++++++++------------
 fs/yaffs2/yaffs_guts.c      |  3 ---
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/fs/yaffs2/yaffs_checkptrw.c b/fs/yaffs2/yaffs_checkptrw.c
index 7b69a640f4b0..66a4e7d9f0f9 100644
--- a/fs/yaffs2/yaffs_checkptrw.c
+++ b/fs/yaffs2/yaffs_checkptrw.c
@@ -130,9 +130,6 @@ static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev)
 int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting)
 {
 
-
-	dev->checkpointOpenForWrite = forWriting;
-
 	/* Got the functions we need? */
 	if (!dev->writeChunkWithTagsToNAND ||
 			!dev->readChunkWithTagsFromNAND ||
@@ -150,6 +147,9 @@ int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting)
 
 
 	dev->checkpointPageSequence = 0;
+
+	dev->checkpointOpenForWrite = forWriting;
+
 	dev->checkpointByteCount = 0;
 	dev->checkpointSum = 0;
 	dev->checkpointXor = 0;
@@ -358,14 +358,11 @@ int yaffs_CheckpointClose(yaffs_Device *dev)
 	if (dev->checkpointOpenForWrite) {
 		if (dev->checkpointByteOffset != 0)
 			yaffs_CheckpointFlushBuffer(dev);
-	} else if(dev->checkpointBlockList){
+	} else {
 		int i;
 		for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) {
-			int blk = dev->checkpointBlockList[i];
-			yaffs_BlockInfo *bi = NULL;
-			if( dev->internalStartBlock <= blk && blk <= dev->internalEndBlock)
-				bi = yaffs_GetBlockInfo(dev, blk);
-			if (bi && bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
+			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]);
+			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
 				bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
 			else {
 				/* Todo this looks odd... */
@@ -393,10 +390,15 @@ int yaffs_CheckpointClose(yaffs_Device *dev)
 
 int yaffs_CheckpointInvalidateStream(yaffs_Device *dev)
 {
-	/* Erase the checkpoint data */
+	/* Erase the first checksum block */
+
+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR)));
 
-	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate of %d blocks"TENDSTR),
-		dev->blocksInCheckpoint));
+	if (!yaffs_CheckpointSpaceOk(dev))
+		return 0;
 
 	return yaffs_CheckpointErase(dev);
 }
+
+
+
diff --git a/fs/yaffs2/yaffs_guts.c b/fs/yaffs2/yaffs_guts.c
index 05ff48d1bc46..155b74643eb8 100644
--- a/fs/yaffs2/yaffs_guts.c
+++ b/fs/yaffs2/yaffs_guts.c
@@ -7436,9 +7436,6 @@ int yaffs_GutsInitialise(yaffs_Device *dev)
 	yaffs_VerifyFreeChunks(dev);
 	yaffs_VerifyBlocks(dev);
 
-	/* Clean up any aborted checkpoint data */
-	if (!dev->isCheckpointed && dev->blocksInCheckpoint > 0)
-		yaffs_InvalidateCheckpoint(dev);
 
 	T(YAFFS_TRACE_TRACING,
 	  (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
-- 
2.34.1