!12075 blk-mq: fix lockdep hardirq warning in __blk_mq_tag_idle()

{

	struct blk_mq_tags *tags = hctx->tags;

	unsigned int users;

	unsigned long flags;

	if (blk_mq_is_sbitmap_shared(hctx->flags)) {

		struct request_queue *q = hctx->queue;

			return;

	}

	spin_lock_irq(&tags->lock);

	spin_lock_irqsave(&tags->lock, flags);

	users = atomic_dec_return(&tags->active_queues);

	blk_mq_update_wake_batch(tags, users);

	spin_unlock_irq(&tags->lock);

	spin_unlock_irqrestore(&tags->lock, flags);

	blk_mq_tag_wakeup_all(tags, false);

}