コード例 #1
0
static void
multiq_reset(struct Qdisc *sch)
{
	u16 band;
	struct multiq_sched_data *q = qdisc_priv(sch);

	for (band = 0; band < q->bands; band++)
		qdisc_reset(q->queues[band]);
	sch->q.qlen = 0;
	q->curband = 0;
}
コード例 #2
0
ファイル: sch_prio.c プロジェクト: AK101111/linux
static void
prio_reset(struct Qdisc *sch)
{
	int prio;
	struct prio_sched_data *q = qdisc_priv(sch);

	for (prio = 0; prio < q->bands; prio++)
		qdisc_reset(q->queues[prio]);
	sch->qstats.backlog = 0;
	sch->q.qlen = 0;
}
コード例 #3
0
static void tbf_reset(struct Qdisc *sch)
{
	struct tbf_sched_data *q = qdisc_priv(sch);

	qdisc_reset(q->qdisc);
	sch->q.qlen = 0;
	q->t_c = psched_get_time();
	q->tokens = q->buffer;
	q->ptokens = q->mtu;
	qdisc_watchdog_cancel(&q->watchdog);
}
コード例 #4
0
static void
prio_reset(struct Qdisc *sch)
{
	int prio;
	struct prio_sched_data *q = qdisc_priv(sch);

	for (prio = 0; prio < q->bands; prio++)
		qdisc_reset(q->queues[prio]);
	sch->q.qlen = 0;
	q->enable_flow = 1;
}
コード例 #5
0
ファイル: sch_tbf.c プロジェクト: xiandaicxsj/copyKvm
static void tbf_reset(struct Qdisc* sch)
{
	struct tbf_sched_data *q = qdisc_priv(sch);

	qdisc_reset(q->qdisc);
	sch->q.qlen = 0;
	PSCHED_GET_TIME(q->t_c);
	q->tokens = q->buffer;
	q->ptokens = q->mtu;
	sch->flags &= ~TCQ_F_THROTTLED;
	del_timer(&q->wd_timer);
}
コード例 #6
0
ファイル: sch_generic.c プロジェクト: gizm0n/wl500g
void dev_deactivate(struct net_device *dev)
{
	struct Qdisc *qdisc;
	struct sk_buff *skb;
	int running;

	spin_lock_bh(&dev->queue_lock);
	qdisc = dev->qdisc;
	dev->qdisc = &noop_qdisc;

	qdisc_reset(qdisc);

	skb = dev->gso_skb;
	dev->gso_skb = NULL;
	spin_unlock_bh(&dev->queue_lock);

	kfree_skb(skb);

	dev_watchdog_down(dev);

	/* Wait for outstanding qdisc-less dev_queue_xmit calls. */
	synchronize_rcu();

	/* Wait for outstanding qdisc_run calls. */
	do {
		while (test_bit(__LINK_STATE_QDISC_RUNNING, &dev->state))
			yield();

		/*
		 * Double-check inside queue lock to ensure that all effects
		 * of the queue run are visible when we return.
		 */
		spin_lock_bh(&dev->queue_lock);
		running = test_bit(__LINK_STATE_QDISC_RUNNING, &dev->state);
		spin_unlock_bh(&dev->queue_lock);

		/*
		 * The running flag should never be set at this point because
		 * we've already set dev->qdisc to noop_qdisc *inside* the same
		 * pair of spin locks.  That is, if any qdisc_run starts after
		 * our initial test it should see the noop_qdisc and then
		 * clear the RUNNING bit before dropping the queue lock.  So
		 * if it is set here then we've found a bug.
		 */
	} while (WARN_ON_ONCE(running));
}
コード例 #7
0
ファイル: sch_generic.c プロジェクト: cilynx/dd-wrt
void dev_deactivate(struct net_device *dev)
{
	struct Qdisc *qdisc;

	spin_lock_bh(&dev->queue_lock);
	qdisc = dev->qdisc;
	dev->qdisc = &noop_qdisc;

	qdisc_reset(qdisc);

	spin_unlock_bh(&dev->queue_lock);

	dev_watchdog_down(dev);

	while (test_bit(__LINK_STATE_SCHED, &dev->state))
		yield();

	spin_unlock_wait(&dev->xmit_lock);
}
コード例 #8
0
static void dev_deactivate_queue(struct net_device *dev,
				 struct netdev_queue *dev_queue,
				 void *_qdisc_default)
{
	struct Qdisc *qdisc_default = _qdisc_default;
	struct Qdisc *qdisc;

	qdisc = dev_queue->qdisc;
	if (qdisc) {
		spin_lock_bh(qdisc_lock(qdisc));

		if (!(qdisc->flags & TCQ_F_BUILTIN))
			set_bit(__QDISC_STATE_DEACTIVATED, &qdisc->state);

		rcu_assign_pointer(dev_queue->qdisc, qdisc_default);
		qdisc_reset(qdisc);

		spin_unlock_bh(qdisc_lock(qdisc));
	}
}
コード例 #9
0
ファイル: sch_generic.c プロジェクト: 513855417/linux
/* Attach toplevel qdisc to device queue. */
struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
			      struct Qdisc *qdisc)
{
	struct Qdisc *oqdisc = dev_queue->qdisc_sleeping;
	spinlock_t *root_lock;

	root_lock = qdisc_lock(oqdisc);
	spin_lock_bh(root_lock);

	/* Prune old scheduler */
	if (oqdisc && atomic_read(&oqdisc->refcnt) <= 1)
		qdisc_reset(oqdisc);

	/* ... and graft new one */
	if (qdisc == NULL)
		qdisc = &noop_qdisc;
	dev_queue->qdisc_sleeping = qdisc;
	rcu_assign_pointer(dev_queue->qdisc, &noop_qdisc);

	spin_unlock_bh(root_lock);

	return oqdisc;
}
コード例 #10
0
static void
teql_destroy(struct Qdisc *sch)
{
	struct Qdisc *q, *prev;
	struct teql_sched_data *dat = qdisc_priv(sch);
	struct teql_master *master = dat->m;

	prev = master->slaves;
	if (prev) {
		do {
			q = NEXT_SLAVE(prev);
			if (q == sch) {
				NEXT_SLAVE(prev) = NEXT_SLAVE(q);
				if (q == master->slaves) {
					master->slaves = NEXT_SLAVE(q);
					if (q == master->slaves) {
						struct netdev_queue *txq;
						spinlock_t *root_lock;

						txq = netdev_get_tx_queue(master->dev, 0);
						master->slaves = NULL;

						root_lock = qdisc_root_sleeping_lock(txq->qdisc);
						spin_lock_bh(root_lock);
						qdisc_reset(txq->qdisc);
						spin_unlock_bh(root_lock);
					}
				}
				skb_queue_purge(&dat->q);
				teql_neigh_release(xchg(&dat->ncache, NULL));
				break;
			}

		} while ((prev = q) != master->slaves);
	}
}
コード例 #11
0
void dev_deactivate(struct device *dev)
{
	struct Qdisc *qdisc;

	start_bh_atomic();

	qdisc = xchg(&dev->qdisc, &noop_qdisc);

	qdisc_reset(qdisc);

	if (qdisc->h.forw) {
		struct Qdisc_head **hp, *h;

		for (hp = &qdisc_head.forw; (h = *hp) != &qdisc_head; hp = &h->forw) {
			if (h == &qdisc->h) {
				*hp = h->forw;
				h->forw = NULL;
				break;
			}
		}
	}

	end_bh_atomic();
}