blk-mq: refactor request insertion/merging

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Refactor the logic around adding a new bio to a software queue,
so we nest the ctx->lock where we really need it (merge and
insertion) and don't hold it when we don't (init and IO start
accounting).

Signed-off-by: Jens Axboe <axboe@fb.com>

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This commit is contained in:

Jens Axboe 2014-04-30 13:43:56 -06:00

parent 98bc1f272a

commit c6d600c65e

1 changed files with 15 additions and 7 deletions

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block/blk-mq.c

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