[PATCH 2/12] bfs: add ->sync_fs

[Christoph Hellwig <hch@lst.de>]

Add a ->sync_fs method for data integrity syncs, and reimplement
->write_super ontop of it.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: vfs-2.6/fs/bfs/inode.c
===================================================================
--- vfs-2.6.orig/fs/bfs/inode.c	2009-06-05 15:54:45.060844037 +0200
+++ vfs-2.6/fs/bfs/inode.c	2009-06-05 15:58:45.082941409 +0200
@@ -210,6 +210,26 @@ static void bfs_delete_inode(struct inod
 	clear_inode(inode);
 }
 
+static int bfs_sync_fs(struct super_block *sb, int wait)
+{
+	struct bfs_sb_info *info = BFS_SB(sb);
+
+	mutex_lock(&info->bfs_lock);
+	mark_buffer_dirty(info->si_sbh);
+	sb->s_dirt = 0;
+	mutex_unlock(&info->bfs_lock);
+
+	return 0;
+}
+
+static void bfs_write_super(struct super_block *sb)
+{
+	if (!(sb->s_flags & MS_RDONLY))
+		bfs_sync_fs(sb, 1);
+	else
+		sb->s_dirt = 0;
+}
+
 static void bfs_put_super(struct super_block *s)
 {
 	struct bfs_sb_info *info = BFS_SB(s);
@@ -248,17 +268,6 @@ static int bfs_statfs(struct dentry *den
 	return 0;
 }
 
-static void bfs_write_super(struct super_block *s)
-{
-	struct bfs_sb_info *info = BFS_SB(s);
-
-	mutex_lock(&info->bfs_lock);
-	if (!(s->s_flags & MS_RDONLY))
-		mark_buffer_dirty(info->si_sbh);
-	s->s_dirt = 0;
-	mutex_unlock(&info->bfs_lock);
-}
-
 static struct kmem_cache *bfs_inode_cachep;
 
 static struct inode *bfs_alloc_inode(struct super_block *sb)
@@ -306,6 +315,7 @@ static const struct super_operations bfs
 	.delete_inode	= bfs_delete_inode,
 	.put_super	= bfs_put_super,
 	.write_super	= bfs_write_super,
+	.sync_fs	= bfs_sync_fs,
 	.statfs		= bfs_statfs,
 };