From f899fed4421d6b098ed6a9d69303c70e590bf2c0 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Wed, 4 Jun 2014 09:11:53 -0600
Subject: [PATCH] blk-mq: fix regression from commit 624dbe475416

When the code was collapsed to avoid duplication, the recent patch
for ensuring that a queue is idled before free was dropped, which was
added by commit 19c5d84f14d2.

Add back the blk_mq_tag_idle(), to ensure we don't leak a reference
to an active queue when it is freed.

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