block: Adjust elv_iosched_show to return "none" for bio-based DM

[pandora-kernel.git] / block / elevator.c

diff --git a/block/elevator.c b/block/elevator.c
index 6df2b50..0abce47 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -1097,7 +1097,7 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name)
        struct elevator_type *__e;
        int len = 0;
 
-       if (!q->elevator)
+       if (!q->elevator || !blk_queue_stackable(q))
                return sprintf(name, "none\n");
 
        elv = e->elevator_type;