There have been numerous reports of problems with nbd and cfq. Deadline gives better performance for nbd, anyway, so let's use it by default.

Signed-Off-By: Paul Clements <paul.clements@steeleye.com>

--- ./drivers/block/nbd.c.max_nbd_killed	2008-02-07 16:46:24.000000000 -0500
+++ ./drivers/block/nbd.c	2008-02-08 11:38:47.000000000 -0500
@@ -667,6 +667,7 @@ static int __init nbd_init(void)
 			put_disk(disk);
 			goto out;
 		}
+		elevator_init(disk->queue, "deadline");
 	}
 
 	if (register_blkdev(NBD_MAJOR, "nbd")) {