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| author | Christoph Hellwig <hch@lst.de> | 2017-06-16 18:15:23 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-06-18 10:08:55 -0600 |
| commit | 037cebb85b94027a52be69d72068e6f6d0dca3a3 (patch) | |
| tree | 414bdaa60c1473c8c0f559f53b8570dffba76239 /block/blk-mq.c | |
| parent | 6af54051a07041d8d4e36b1b01136a0db4eb7e23 (diff) | |
| download | lwn-037cebb85b94027a52be69d72068e6f6d0dca3a3.tar.gz lwn-037cebb85b94027a52be69d72068e6f6d0dca3a3.zip | |
blk-mq: streamline blk_mq_get_request
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 0b17351fccfc..e056725679a8 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -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); if (rq) rq->rq_flags |= RQF_QUEUED; - } else - rq = __blk_mq_alloc_request(data, op); - } else { - rq = __blk_mq_alloc_request(data, op); + goto allocated; + } } - 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; + rq = __blk_mq_alloc_request(data, op); +allocated: + if (!rq) { + blk_queue_exit(q); + return NULL; } - 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, |