block: enumify ELEVATOR_*_MERGE
Switch these constants to an enum, and make let the compiler ensure that
all callers of blk_try_merge and elv_merge handle all potential values.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index d68d9c2..23612163 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -121,7 +121,7 @@ static void deadline_remove_request(struct request_queue *q, struct request *rq)
}
static void dd_request_merged(struct request_queue *q, struct request *req,
- int type)
+ enum elv_merge type)
{
struct deadline_data *dd = q->elevator->elevator_data;
