Checkpointing changes

[yaffs2.git] / yaffs_fs.c

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 101cecf1c62e3729fdade0f99b8ce1dc5708c739..09591117f4f50a91ed323402d8c90ac23d6838bd 100644 (file)
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -31,7 +31,7 @@
  */
 
 const char *yaffs_fs_c_version =
-    "$Id: yaffs_fs.c,v 1.42 2006-02-08 07:52:51 charles Exp $";
+    "$Id: yaffs_fs.c,v 1.46 2006-05-08 10:13:34 charles Exp $";
 extern const char *yaffs_guts_c_version;
 
 #include <linux/config.h>
@@ -73,7 +73,10 @@ extern const char *yaffs_guts_c_version;
 #include "yportenv.h"
 #include "yaffs_guts.h"
 
-unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | YAFFS_TRACE_BAD_BLOCKS /* | 0xFFFFFFFF */; 
+unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | 
+                          YAFFS_TRACE_BAD_BLOCKS | 
+                          YAFFS_TRACE_CHECKPOINT
+                          /* | 0xFFFFFFFF */; 
 
 #include <linux/mtd/mtd.h>
 #include "yaffs_mtdif.h"
@@ -1278,14 +1281,25 @@ static void yaffs_put_super(struct super_block *sb)
        yaffs_Device *dev = yaffs_SuperToDevice(sb);
 
        yaffs_GrossLock(dev);
+       
+       yaffs_FlushEntireDeviceCache(dev);
+       
        if (dev->putSuperFunc) {
                dev->putSuperFunc(sb);
        }
+       
+       yaffs_CheckpointSave(dev);
        yaffs_Deinitialise(dev);
+       
        yaffs_GrossUnlock(dev);
 
        /* we assume this is protected by lock_kernel() in mount/umount */
        list_del(&dev->devList);
+       
+       if(dev->spareBuffer){
+               YFREE(dev->spareBuffer);
+               dev->spareBuffer = NULL;
+       }
 
        kfree(dev);
 }
@@ -1405,7 +1419,7 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
                if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
                    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) {
                        T(YAFFS_TRACE_ALWAYS,
-                         ("yaffs: MTD device does not support have the "
+                         ("yaffs: MTD device does not have the "
                           "right page sizes\n"));
                        return NULL;
                }
@@ -1476,7 +1490,9 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
                dev->nBytesPerChunk = mtd->oobblock;
                dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
                nBlocks = mtd->size / mtd->erasesize;
-               dev->startBlock = 0;
+               dev->checkpointStartBlock = 0;
+               dev->checkpointEndBlock = 20;
+               dev->startBlock = dev->checkpointEndBlock + 1;
                dev->endBlock = nBlocks - 1;
        } else {
                dev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
@@ -1900,5 +1916,5 @@ module_init(init_yaffs_fs)
 module_exit(exit_yaffs_fs)
 
 MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
-MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002,2003,2004");
+MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006");
 MODULE_LICENSE("GPL");