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-rw-r--r--block/elevator.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/elevator.c b/block/elevator.c
index 6df2b5056b5..0abce473d60 100644
--- 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;