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block: don't check ->rq_disk in merges 

There is a 1:1 relationship between request_queues and gendisks now, so
no need for these extra checks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20211126121802.2090656-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-11-26 13:17:59 +01:00 committed by Jens Axboe
parent 82baa324dc
commit 79bb1dbd12
1 changed files with 1 additions and 6 deletions
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7
block/blk-merge.c
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@ -777,8 +777,7 @@ static struct request *attempt_merge(struct request_queue *q,
if (req_op(req) != req_op(next))
return NULL;
if (rq_data_dir(req) != rq_data_dir(next)
|| req->rq_disk != next->rq_disk)
if (rq_data_dir(req) != rq_data_dir(next))
return NULL;
if (req_op(req) == REQ_OP_WRITE_SAME &&
@ -905,10 +904,6 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
if (bio_data_dir(bio) != rq_data_dir(rq))
return false;
/* must be same device */
if (rq->rq_disk != bio->bi_bdev->bd_disk)
return false;
/* only merge integrity protected bio into ditto rq */
if (blk_integrity_merge_bio(rq->q, rq, bio) == false)
return false;