nfs: nfs_kill_super() should call bdi_unregister() after killing super
authorJens Axboe <jens.axboe@oracle.com>
Thu, 17 Sep 2009 12:51:44 +0000 (14:51 +0200)
committerJens Axboe <jens.axboe@oracle.com>
Mon, 21 Sep 2009 13:40:32 +0000 (15:40 +0200)
Otherwise we could be attempting to flush data for a writeback
thread and bdi that have already disappeared.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
fs/nfs/super.c

index de935692d40d77a6592a61ac810887f2bf1ce313..f1cc0587cfef3f2a02fe8c22b5226b014e0321a2 100644 (file)
@@ -2190,8 +2190,8 @@ static void nfs_kill_super(struct super_block *s)
 {
        struct nfs_server *server = NFS_SB(s);
 
-       bdi_unregister(&server->backing_dev_info);
        kill_anon_super(s);
+       bdi_unregister(&server->backing_dev_info);
        nfs_fscache_release_super_cookie(s);
        nfs_free_server(server);
 }