nfs: nfs_kill_super() should call bdi_unregister() after killing super



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>

parent 6952b61d

fs/nfs/super.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}