block: use bool as the return type of elv_iosched_allow_bio_merge

We have bool type now, update the old signature.

Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/0db0a0298758d60d0f4df8b7126ac6a381e5a5bb.1669736350.git.nickyc975@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/elevator.c b/block/elevator.c
index 8a5c171..14e0363 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -57,7 +57,7 @@ static LIST_HEAD(elv_list);
  * Query io scheduler to see if the current process issuing bio may be
  * merged with rq.
  */
-static int elv_iosched_allow_bio_merge(struct request *rq, struct bio *bio)
+static bool elv_iosched_allow_bio_merge(struct request *rq, struct bio *bio)
 {
        struct request_queue *q = rq->q;
        struct elevator_queue *e = q->elevator;
@@ -65,7 +65,7 @@ static int elv_iosched_allow_bio_merge(struct request *rq, struct bio *bio)
        if (e->type->ops.allow_merge)
                return e->type->ops.allow_merge(q, rq, bio);
 
-       return 1;
+       return true;
 }
 
 /*