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blk-mq: fix regression from commit 624dbe4754
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>
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@ -1552,6 +1552,8 @@ static void blk_mq_exit_hw_queues(struct request_queue *q,
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if (i == nr_queue)
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break;
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blk_mq_tag_idle(hctx);
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if (set->ops->exit_hctx)
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set->ops->exit_hctx(hctx, i);
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