btrfs: remove ->write_super and stop maintaining ->s_dirt

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 8 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 708ac06b953..52d84522c2c 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -397,7 +397,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
         if (sb->s_flags & MS_RDONLY)
                 return 0;
 
-        sb->s_dirt = 0;
         if (!wait) {
                 filemap_flush(root->fs_info->btree_inode->i_mapping);
                 return 0;
@@ -408,7 +407,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
 
         trans = btrfs_start_transaction(root, 1);
         ret = btrfs_commit_transaction(trans, root);
-        sb->s_dirt = 0;
         return ret;
 }
 
@@ -454,11 +452,6 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
         return 0;
 }
 
-static void btrfs_write_super(struct super_block *sb)
-{
-        sb->s_dirt = 0;
-}
-
 static int btrfs_test_super(struct super_block *s, void *data)
 {
         struct btrfs_fs_devices *test_fs_devices = data;
@@ -689,7 +682,6 @@ static int btrfs_unfreeze(struct super_block *sb)
 static struct super_operations btrfs_super_ops = {
         .delete_inode   = btrfs_delete_inode,
         .put_super      = btrfs_put_super,
-        .write_super    = btrfs_write_super,
         .sync_fs        = btrfs_sync_fs,
         .show_options   = btrfs_show_options,
         .write_inode    = btrfs_write_inode,