Commit 19c5d84f authored May 26, 2014 by Christoph Hellwig Committed by Jens Axboe May 26, 2014

blk-mq: idle all hardware contexts before freeing a queue



Without this we can leak the active_queues reference if a command is
freed while it is considered active.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent c22d9d8a

block/blk-mq.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1844,6 +1844,7 @@ void blk_mq_free_queue(struct request_queue *q)
		blk_mq_del_queue_tag_set(q);

		queue_for_each_hw_ctx(q, hctx, i) {
		blk_mq_tag_idle(hctx);
		kfree(hctx->ctxs);
		blk_mq_unregister_cpu_notifier(&hctx->cpu_notifier);
		if (q->mq_ops->exit_hctx)