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blk-mq: initialize resid_len 

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig 2014-04-14 10:30:06 +02:00 committed by Jens Axboe
parent b4f42e2831
commit 742ee69b92
1 changed files with 2 additions and 0 deletions
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2
block/blk-mq.c
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@ -353,6 +353,8 @@ static void blk_mq_start_request(struct request *rq, bool last)
trace_block_rq_issue(q, rq);
rq->resid_len = blk_rq_bytes(rq);
/*
* Just mark start time and set the started bit. Due to memory
* ordering, we know we'll see the correct deadline as long as