From 0e62f51f8753b048f391ee2d7f2af1f7297b0be5 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Wed, 4 Jun 2014 10:23:49 -0600
Subject: [PATCH] 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>
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