[BLOCK] ll_rw_blk: fix setting of ->ordered on init

This makes XFS barrier mounts succeed on my SCSI system.

Signed-off-by: Tetsuo Takata <takatatt@intellilink.co.jp>
Signed-off-by: Jens Axboe <axboe@suse.de>
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 6bc4156..e00ab71 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -332,6 +332,7 @@
 		return -EINVAL;
 	}
 
+	q->ordered = ordered;
 	q->next_ordered = ordered;
 	q->prepare_flush_fn = prepare_flush_fn;