tree 3cd2ad45a7f0cb9e97995e57be61432e9f0d34d3
parent f899fed4421d6b098ed6a9d69303c70e590bf2c0
author Jens Axboe <axboe@fb.com> 1401899029 -0600
committer Jens Axboe <axboe@fb.com> 1401899029 -0600

blk-mq: let blk_mq_tag_to_rq() take blk_mq_tags as the main parameter

We currently pass in the hardware queue, and get the tags from there.
But from scsi-mq, with a shared tag space, it's a lot more convenient
to pass in the blk_mq_tags instead as the hardware queue isn't always
directly available. So instead of having to re-map to a given
hardware queue from rq->mq_ctx, just pass in the tags structure.

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