Add non-partitioned checkpointing

[yaffs2.git] / yaffs_fs.c

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 09591117f4f50a91ed323402d8c90ac23d6838bd..bcc148be595671a52a49cfa5685db679b78e6f89 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 1.46 2006-05-08 10:13:34 charles Exp $";
+    "$Id: yaffs_fs.c,v 1.47 2006-05-17 09:36:06 charles Exp $";
 extern const char *yaffs_guts_c_version;
 
 #include <linux/config.h>
@@ -132,6 +132,9 @@ static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
                        struct inode *new_dir, struct dentry *new_dentry);
 static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
 
+static int yaffs_sync_fs(struct super_block *sb);
+static int yaffs_write_super(struct super_block *sb);
+
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
 #else
@@ -217,6 +220,8 @@ static struct super_operations yaffs_super_ops = {
        .put_super = yaffs_put_super,
        .delete_inode = yaffs_delete_inode,
        .clear_inode = yaffs_clear_inode,
+       .sync_fs = yaffs_sync_fs,
+       .write_super = yaffs_write_super,
 };
 
 static void yaffs_GrossLock(yaffs_Device * dev)
@@ -1252,6 +1257,47 @@ static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
        return 0;
 }
 
+
+
+static int yaffs_do_sync_fs(struct super_block *sb)
+{
+
+       yaffs_Device *dev = yaffs_SuperToDevice(sb);
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n"));
+
+       if(sb->s_dirt) {
+               yaffs_GrossLock(dev);
+
+               if(dev)
+                       yaffs_CheckpointSave(dev);
+               
+               yaffs_GrossUnlock(dev);
+
+               sb->s_dirt = 0;
+       }
+       return 0;
+}
+
+
+static int yaffs_write_super(struct super_block *sb)
+{
+
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n"));
+       return 0; /* yaffs_do_sync_fs(sb);*/
+       
+}
+
+
+static int yaffs_sync_fs(struct super_block *sb)
+{
+
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n"));
+       
+       return 0; /* yaffs_do_sync_fs(sb);*/
+       
+}
+
+
 static void yaffs_read_inode(struct inode *inode)
 {
        /* NB This is called as a side effect of other functions, but
@@ -1280,6 +1326,8 @@ static void yaffs_put_super(struct super_block *sb)
 {
        yaffs_Device *dev = yaffs_SuperToDevice(sb);
 
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n"));
+
        yaffs_GrossLock(dev);
        
        yaffs_FlushEntireDeviceCache(dev);
@@ -1318,6 +1366,15 @@ static void yaffs_MTDPutSuper(struct super_block *sb)
 }
 
 
+static void yaffs_MarkSuperBlockDirty(void *vsb)
+{
+       struct super_block *sb = (struct super_block *)vsb;
+       
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb));
+//     if(sb)
+//             sb->s_dirt = 1;
+}
+
 static struct super_block *yaffs_internal_read_super(int yaffsVersion,
                                                     struct super_block *sb,
                                                     void *data, int silent)
@@ -1490,9 +1547,7 @@ 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->checkpointStartBlock = 0;
-               dev->checkpointEndBlock = 20;
-               dev->startBlock = dev->checkpointEndBlock + 1;
+               dev->startBlock = 0;
                dev->endBlock = nBlocks - 1;
        } else {
                dev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
@@ -1504,6 +1559,10 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
        dev->initialiseNAND = nandmtd_InitialiseNAND;
 
        dev->putSuperFunc = yaffs_MTDPutSuper;
+       
+       dev->superBlock = (void *)sb;
+       dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
+       
 
 #ifndef CONFIG_YAFFS_DOES_ECC
        dev->useNANDECC = 1;