blk-mq: avoid re-initialize request which is failed in direct dispatch
authorShaohua Li <shli@fb.com>
Fri, 8 May 2015 17:51:31 +0000 (10:51 -0700)
committerJens Axboe <axboe@fb.com>
Fri, 8 May 2015 20:17:19 +0000 (14:17 -0600)
commit239ad215f0d8388cbe6c09a0fab8ad8ff5dba420
treed1525efb74bed517f68017891a0f2ed6bae60bea
parente6c4438ba7cb615448492849970aaf0aaa1cc973
blk-mq: avoid re-initialize request which is failed in direct dispatch

If we directly issue a request and it fails, we use
blk_mq_merge_queue_io(). But we already assigned bio to a request in
blk_mq_bio_to_request. blk_mq_merge_queue_io shouldn't run
blk_mq_bio_to_request again.

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-mq.c