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blk-mq: remove the bio argument to ->prepare_request

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None of the I/O schedulers actually needs it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-05-29 15:53:08 +02:00 committed by Jens Axboe
parent 3382a567ef
commit 5d9c305b8e
5 changed files with 5 additions and 5 deletions
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2
block/bfq-iosched.c
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@ -6073,7 +6073,7 @@ static struct bfq_queue *bfq_get_bfqq_handle_split(struct bfq_data *bfqd,
* comments on bfq_init_rq for the reason behind this delayed
* preparation.
*/
static void bfq_prepare_request(struct request *rq, struct bio *bio)
static void bfq_prepare_request(struct request *rq)
{
/*
* Regardless of whether we have an icq attached, we have to

2
block/blk-mq.c
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@ -387,7 +387,7 @@ static struct request *blk_mq_get_request(struct request_queue *q,
if (e->type->icq_cache)
blk_mq_sched_assign_ioc(rq);
e->type->ops.prepare_request(rq, bio);
e->type->ops.prepare_request(rq);
rq->rq_flags |= RQF_ELVPRIV;
}
}

2
block/kyber-iosched.c
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@ -579,7 +579,7 @@ static bool kyber_bio_merge(struct blk_mq_hw_ctx *hctx, struct bio *bio,
return merged;
}
static void kyber_prepare_request(struct request *rq, struct bio *bio)
static void kyber_prepare_request(struct request *rq)
{
rq_set_domain_token(rq, -1);
}

2
block/mq-deadline.c
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@ -541,7 +541,7 @@ static void dd_insert_requests(struct blk_mq_hw_ctx *hctx,
* Nothing to do here. This is defined only to ensure that .finish_request
* method is called upon request completion.
*/
static void dd_prepare_request(struct request *rq, struct bio *bio)
static void dd_prepare_request(struct request *rq)
{
}

2
include/linux/elevator.h
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@ -39,7 +39,7 @@ struct elevator_mq_ops {
void (*request_merged)(struct request_queue *, struct request *, enum elv_merge);
void (*requests_merged)(struct request_queue *, struct request *, struct request *);
void (*limit_depth)(unsigned int, struct blk_mq_alloc_data *);
void (*prepare_request)(struct request *, struct bio *bio);
void (*prepare_request)(struct request *);
void (*finish_request)(struct request *);
void (*insert_requests)(struct blk_mq_hw_ctx *, struct list_head *, bool);
struct request *(*dispatch_request)(struct blk_mq_hw_ctx *);