1 files changed, 26 insertions, 0 deletions

diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 4c4e18c54a51..07a22caf2687 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -53,10 +53,29 @@ static void jffs2_i_init_once(void *foo)
         inode_init_once(&f->vfs_inode);
 }
 
+static void jffs2_write_super(struct super_block *sb)
+{
+        struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+
+        lock_super(sb);
+        sb->s_dirt = 0;
+
+        if (!(sb->s_flags & MS_RDONLY)) {
+                D1(printk(KERN_DEBUG "jffs2_write_super()\n"));
+                jffs2_garbage_collect_trigger(c);
+                jffs2_erase_pending_blocks(c, 0);
+                jffs2_flush_wbuf_gc(c, 0);
+        }
+
+        unlock_super(sb);
+}
+
 static int jffs2_sync_fs(struct super_block *sb, int wait)
 {
         struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
 
+        jffs2_write_super(sb);
+
         mutex_lock(&c->alloc_sem);
         jffs2_flush_wbuf_pad(c);
         mutex_unlock(&c->alloc_sem);
@@ -174,6 +193,11 @@ static void jffs2_put_super (struct super_block *sb)
 
         D2(printk(KERN_DEBUG "jffs2: jffs2_put_super()\n"));
 
+        lock_kernel();
+
+        if (sb->s_dirt)
+                jffs2_write_super(sb);
+
         mutex_lock(&c->alloc_sem);
         jffs2_flush_wbuf_pad(c);
         mutex_unlock(&c->alloc_sem);
@@ -192,6 +216,8 @@ static void jffs2_put_super (struct super_block *sb)
         if (c->mtd->sync)
                 c->mtd->sync(c->mtd);
 
+        unlock_kernel();
+
         D1(printk(KERN_DEBUG "jffs2_put_super returning\n"));
 }