[PATCH] Expose reiserfs_sync_fs()

Attached patch exposes reiserfs_sync_fs().  This call is needed by the new
quota code to write data to disk on quotaoff so that userspace can see them
afterwards.  Chris Mason agrees with the patch.

Make reiserfs provide the sync_fs() function so that the quota code
has a way to reliably force a transaction to disk.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/reiserfs/super.c

@@ -62,7 +62,7 @@ static int is_any_reiserfs_magic_string (struct reiserfs_super_block * rs)
 static int reiserfs_remount (struct super_block * s, int * flags, char * data);
 static int reiserfs_statfs (struct super_block * s, struct kstatfs * buf);
 
-static void reiserfs_sync_fs (struct super_block * s)
+static int reiserfs_sync_fs (struct super_block * s, int wait)
 {
     if (!(s->s_flags & MS_RDONLY)) {
         struct reiserfs_transaction_handle th;
@@ -76,11 +76,12 @@ static void reiserfs_sync_fs (struct super_block * s)
     } else {
         s->s_dirt = 0;
     }
+    return 0;
 }
 
 static void reiserfs_write_super(struct super_block *s)
 {
-    reiserfs_sync_fs(s);
+    reiserfs_sync_fs(s, 1);
 }
 
 static void reiserfs_write_super_lockfs (struct super_block * s)
@@ -526,6 +527,7 @@ struct super_operations reiserfs_sops =
   .clear_inode  = reiserfs_clear_inode,
   .put_super = reiserfs_put_super,
   .write_super = reiserfs_write_super,
+  .sync_fs = reiserfs_sync_fs,
   .write_super_lockfs = reiserfs_write_super_lockfs,
   .unlockfs = reiserfs_unlockfs,
   .statfs = reiserfs_statfs,