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authorMing Lei <ming.lei@canoical.com>2014-09-17 17:47:58 +0800
committerJens Axboe <axboe@fb.com>2014-09-22 12:00:07 -0600
commit2edd2c740b2918eb0a9a1fe1b69678b903769ec2 (patch)
tree36df228ed4b404fdf1b53b966ccc914ad5555df3 /.gitignore
parent0152fb6b57c4fae769ee75ea2ae670f4ff39fba9 (diff)
downloadlinux-0-day-2edd2c740b2918eb0a9a1fe1b69678b903769ec2.tar.gz
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blk-mq: remove unnecessary blk_clear_rq_complete()
This patch removes two unnecessary blk_clear_rq_complete(), the REQ_ATOM_COMPLETE flag is cleared inside blk_mq_start_request(), so: - The blk_clear_rq_complete() in blk_flush_restore_request() needn't because the request will be freed later, and clearing it here may open a small race window with timeout. - The blk_clear_rq_complete() in blk_mq_requeue_request() isn't necessary too, even though REQ_ATOM_STARTED is cleared in __blk_mq_requeue_request(), in theory it still may cause a small race window with timeout since the two clear_bit() may be reordered. Signed-off-by: Ming Lei <ming.lei@canoical.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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