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block: add blk-mq support to blk_insert_cloned_request()

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If the request passed to blk_insert_cloned_request() was allocated by
a blk-mq device it must be submitted using blk_mq_insert_request().

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Keith Busch 2014-10-17 17:46:38 -06:00 committed by Jens Axboe
parent febf71588c
commit 7fb4898e0c
1 changed files with 7 additions and 0 deletions
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7
block/blk-core.c
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@ -2048,6 +2048,13 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
should_fail_request(&rq->rq_disk->part0, blk_rq_bytes(rq)))
return -EIO;
if (q->mq_ops) {
if (blk_queue_io_stat(q))
blk_account_io_start(rq, true);
blk_mq_insert_request(rq, false, true, true);
return 0;
}
spin_lock_irqsave(q->queue_lock, flags);
if (unlikely(blk_queue_dying(q))) {
spin_unlock_irqrestore(q->queue_lock, flags);