Add autocheckpoint control

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 2672c454f105e3bb7f6238da68ad57e63d542def..b57b6577feed861930dfd8aaa663b0e901258e84 100644 (file)
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -32,7 +32,7 @@
  */
 
 const char *yaffs_fs_c_version =
  */
 
 const char *yaffs_fs_c_version =

-    "$Id: yaffs_fs.c,v 1.69 2008-08-28 02:42:11 charles Exp $";
+    "$Id: yaffs_fs.c,v 1.70 2009-01-18 21:50:37 charles Exp $";

 extern const char *yaffs_guts_c_version;
 
 #include <linux/version.h>
 extern const char *yaffs_guts_c_version;
 
 #include <linux/version.h>


@@ -103,14 +103,17 @@ extern const char *yaffs_guts_c_version;
 
 unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS;
 unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
 
 unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS;
 unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;

+unsigned int yaffs_auto_checkpoint = 1;

 
 /* Module Parameters */
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 module_param(yaffs_traceMask,uint,0644);
 module_param(yaffs_wr_attempts,uint,0644);
 
 /* Module Parameters */
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 module_param(yaffs_traceMask,uint,0644);
 module_param(yaffs_wr_attempts,uint,0644);

+module_param(yaffs_auto_checkpoint,uint,0644);

 #else
 MODULE_PARM(yaffs_traceMask,"i");
 MODULE_PARM(yaffs_wr_attempts,"i");
 #else
 MODULE_PARM(yaffs_traceMask,"i");
 MODULE_PARM(yaffs_wr_attempts,"i");

+MODULE_PARM(yaffs_auto_checkpoint,"i");

 #endif
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
 #endif
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))


@@ -1471,7 +1474,8 @@ static int yaffs_write_super(struct super_block *sb)
 {
 
        T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n"));
 {
 
        T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n"));

-       yaffs_do_sync_fs(sb);
+       if (yaffs_auto_checkpoint >= 2)
+               yaffs_do_sync_fs(sb);

 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
        return 0; 
 #endif
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
        return 0; 
 #endif


@@ -1487,7 +1491,8 @@ static int yaffs_sync_fs(struct super_block *sb)
 
        T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n"));
 
 
        T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n"));
 

-       yaffs_do_sync_fs(sb);
+       if (yaffs_auto_checkpoint >= 1)
+               yaffs_do_sync_fs(sb);

        
        return 0; 
 
        
        return 0; 
 


@@ -1636,8 +1641,8 @@ 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));
        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;
+       if(sb)
+               sb->s_dirt = 1;

 }
 
 typedef struct {
 }
 
 typedef struct {


@@ -1979,6 +1984,9 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
                return NULL;
        }
        sb->s_root = root;
                return NULL;
        }
        sb->s_root = root;

+       sb->s_dirt = !dev->isCheckpointed;
+       T(YAFFS_TRACE_ALWAYS,
+         ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed));

 
        T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
        return sb;
 
        T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
        return sb;