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blk-mq: streamline blk_mq_get_request

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2017-06-16 18:15:23 +02:00 • committed by Jens Axboe
parent 6af54051a0
commit 037cebb85b
1 changed files with 15 additions and 15 deletions
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30
block/blk-mq.c
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@ -302,24 +302,24 @@ static struct request *blk_mq_get_request(struct request_queue *q,
rq = e->type->ops.mq.get_request(q, op, data); rq = e->type->ops.mq.get_request(q, op, data);
if (rq) if (rq)
rq->rq_flags |= RQF_QUEUED; rq->rq_flags |= RQF_QUEUED;
} else goto allocated;
rq = __blk_mq_alloc_request(data, op);
} else {
rq = __blk_mq_alloc_request(data, op);
}
if (rq) {
if (!op_is_flush(op)) {
rq->elv.icq = NULL;
if (e && e->type->icq_cache)
blk_mq_sched_assign_ioc(q, rq, bio);
} }
data->hctx->queued++;
return rq;
} }
blk_queue_exit(q); rq = __blk_mq_alloc_request(data, op);
return NULL; allocated:
if (!rq) {
blk_queue_exit(q);
return NULL;
}
if (!op_is_flush(op)) {
rq->elv.icq = NULL;
if (e && e->type->icq_cache)
blk_mq_sched_assign_ioc(q, rq, bio);
}
data->hctx->queued++;
return rq;
} }
struct request *blk_mq_alloc_request(struct request_queue *q, int rw, struct request *blk_mq_alloc_request(struct request_queue *q, int rw,