blk-mq: initialize req->q in allocation

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The patch basically reverts the patch of(blk-mq:
initialize request on allocation) in Jens's tree(already
in -next), and only initialize req->q in allocation
for two reasons:

	- presumed cache hotness on completion
	- blk_rq_tagged(rq) depends on reset of req->mq_ctx

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Ming Lei 2014-04-19 18:00:19 +08:00 • committed by Jens Axboe

parent 4ca085009f

commit 6a3c8a3ac0

1 changed files with 3 additions and 1 deletions

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block/blk-mq.c

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