hfs: add ->sync_fs

Add a ->sync_fs method for data integrity syncs.

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

1 files changed, 11 insertions, 0 deletions

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 3aac41751030..6f833dc8e910 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -58,6 +58,16 @@ static void hfs_write_super(struct super_block *sb)
         unlock_super(sb);
 }
 
+static int hfs_sync_fs(struct super_block *sb, int wait)
+{
+        lock_super(sb);
+        hfs_mdb_commit(sb);
+        sb->s_dirt = 0;
+        unlock_super(sb);
+
+        return 0;
+}
+
 /*
  * hfs_put_super()
  *
@@ -172,6 +182,7 @@ static const struct super_operations hfs_super_operations = {
         .clear_inode    = hfs_clear_inode,
         .put_super      = hfs_put_super,
         .write_super    = hfs_write_super,
+        .sync_fs        = hfs_sync_fs,
         .statfs         = hfs_statfs,
         .remount_fs     = hfs_remount,
         .show_options   = hfs_show_options,