linux-master/block/blk-iocost.c

532 	struct wait_queue_head		waitq;
734 		spin_lock(&iocg->waitq.lock);
736 		spin_lock_irqsave(&iocg->waitq.lock, *flags);
743 		spin_unlock(&iocg->waitq.lock);
746 		spin_unlock_irqrestore(&iocg->waitq.lock, *flags);
1354 	lockdep_assert_held(&iocg->waitq.lock);
1417 	lockdep_assert_held(&iocg->waitq.lock);
1440 	lockdep_assert_held(&iocg->waitq.lock);
1491  * addition to iocg->waitq.lock.
1502 	lockdep_assert_held(&iocg->waitq.lock);
1543 	__wake_up_locked_key(&iocg->waitq, TASK_NORMAL, &ctx);
1545 	if (!waitqueue_active(&iocg->waitq)) {
1755 	if (waitqueue_active(&iocg->waitq) ||
2136 		spin_lock(&iocg->waitq.lock);
2152 		spin_unlock(&iocg->waitq.lock);
2172 		if (!waitqueue_active(&iocg->waitq) && !iocg->abs_vdebt &&
2176 		spin_lock(&iocg->waitq.lock);
2194 		if (waitqueue_active(&iocg->waitq) || iocg->abs_vdebt ||
2227 		spin_unlock(&iocg->waitq.lock);
2309 		    (!waitqueue_active(&iocg->waitq) &&
2631 	if (!waitqueue_active(&iocg->waitq) && !iocg->abs_vdebt &&
2640 	 * debt. Otherwise, the issuer is blocked on @iocg->waitq. Debt handling
2641 	 * requires @ioc->lock, waitq handling @iocg->waitq.lock. Determine
2650 	 * @iocg must stay activated for debt and waitq handling. Deactivation
2651 	 * is synchronized against both ioc->lock and waitq.lock and we won't
2700 	 * Append self to the waitq and schedule the wakeup timer if we're
2709 	 * All waiters are on iocg->waitq and the wait states are
2710 	 * synchronized using waitq.lock.
2718 	__add_wait_queue_entry_tail(&iocg->waitq, &wait.wait);
2731 	finish_wait(&iocg->waitq, &wait.wait);
2778 	spin_lock(&iocg->waitq.lock);
2789 	spin_unlock(&iocg->waitq.lock);
2997 	init_waitqueue_head(&iocg->waitq);