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blk-mq: fix regression from commit 624dbe4754

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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 19c5d84f14.

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>
This commit is contained in:
Jens Axboe 2014-06-04 09:11:53 -06:00
parent ff87bcec19
commit f899fed442
1 changed files with 2 additions and 0 deletions
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2
block/blk-mq.c
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@ -1552,6 +1552,8 @@ static void blk_mq_exit_hw_queues(struct request_queue *q,
if (i == nr_queue) if (i == nr_queue)
break; break;
blk_mq_tag_idle(hctx);
if (set->ops->exit_hctx) if (set->ops->exit_hctx)
set->ops->exit_hctx(hctx, i); set->ops->exit_hctx(hctx, i);