C++ sch_tree_unlock函数代码示例

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本文整理汇总了C++中sch_tree_unlock函数的典型用法代码示例。如果您正苦于以下问题：C++ sch_tree_unlock函数的具体用法？C++ sch_tree_unlock怎么用？C++ sch_tree_unlock使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了sch_tree_unlock函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: multiq_tune

static int multiq_tune(struct Qdisc *sch, struct nlattr *opt,
		       struct netlink_ext_ack *extack)
{
	struct multiq_sched_data *q = qdisc_priv(sch);
	struct tc_multiq_qopt *qopt;
	int i;

	if (!netif_is_multiqueue(qdisc_dev(sch)))
		return -EOPNOTSUPP;
	if (nla_len(opt) < sizeof(*qopt))
		return -EINVAL;

	qopt = nla_data(opt);

	qopt->bands = qdisc_dev(sch)->real_num_tx_queues;

	sch_tree_lock(sch);
	q->bands = qopt->bands;
	for (i = q->bands; i < q->max_bands; i++) {
		if (q->queues[i] != &noop_qdisc) {
			struct Qdisc *child = q->queues[i];
			q->queues[i] = &noop_qdisc;
			qdisc_tree_reduce_backlog(child, child->q.qlen,
						  child->qstats.backlog);
			qdisc_put(child);
		}
	}

	sch_tree_unlock(sch);

	for (i = 0; i < q->bands; i++) {
		if (q->queues[i] == &noop_qdisc) {
			struct Qdisc *child, *old;
			child = qdisc_create_dflt(sch->dev_queue,
						  &pfifo_qdisc_ops,
						  TC_H_MAKE(sch->handle,
							    i + 1), extack);
			if (child) {
				sch_tree_lock(sch);
				old = q->queues[i];
				q->queues[i] = child;
				if (child != &noop_qdisc)
					qdisc_hash_add(child, true);

				if (old != &noop_qdisc) {
					qdisc_tree_reduce_backlog(old,
								  old->q.qlen,
								  old->qstats.backlog);
					qdisc_put(old);
				}
				sch_tree_unlock(sch);
			}
		}
	}
	return 0;
}

开发者ID:AlexShiLucky，项目名称:linux，代码行数:56，代码来源:sch_multiq.c

示例2: prio_tune

static int prio_tune(struct Qdisc *sch, struct nlattr *opt)
{
	struct prio_sched_data *q = qdisc_priv(sch);
	struct tc_prio_qopt *qopt;
	int i;

	if (nla_len(opt) < sizeof(*qopt))
		return -EINVAL;
	qopt = nla_data(opt);

	if (qopt->bands > TCQ_PRIO_BANDS || qopt->bands < 2)
		return -EINVAL;

	for (i = 0; i <= TC_PRIO_MAX; i++) {
		if (qopt->priomap[i] >= qopt->bands)
			return -EINVAL;
	}

	sch_tree_lock(sch);
	q->bands = qopt->bands;
	memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);

	for (i = q->bands; i < TCQ_PRIO_BANDS; i++) {
		struct Qdisc *child = q->queues[i];
		q->queues[i] = &noop_qdisc;
		if (child != &noop_qdisc) {
			qdisc_tree_decrease_qlen(child, child->q.qlen);
			qdisc_destroy(child);
		}
	}
	sch_tree_unlock(sch);

	for (i = 0; i < q->bands; i++) {
		if (q->queues[i] == &noop_qdisc) {
			struct Qdisc *child, *old;

			child = qdisc_create_dflt(sch->dev_queue,
						  &pfifo_qdisc_ops,
						  TC_H_MAKE(sch->handle, i + 1));
			if (child) {
				sch_tree_lock(sch);
				old = q->queues[i];
				q->queues[i] = child;

				if (old != &noop_qdisc) {
					qdisc_tree_decrease_qlen(old,
								 old->q.qlen);
					qdisc_destroy(old);
				}
				sch_tree_unlock(sch);
			}
		}
	}
	return 0;
}

开发者ID:rochecr，项目名称:linux，代码行数:55，代码来源:sch_prio.c

示例3: multiq_tune

static int multiq_tune(struct Qdisc *sch, struct nlattr *opt)
{
	struct multiq_sched_data *q = qdisc_priv(sch);
	struct tc_multiq_qopt *qopt;
	int i;

	if (!netif_is_multiqueue(qdisc_dev(sch)))
		return -EOPNOTSUPP;
	if (nla_len(opt) < sizeof(*qopt))
		return -EINVAL;

	qopt = nla_data(opt);

	qopt->bands = qdisc_dev(sch)->real_num_tx_queues;

	sch_tree_lock(sch);
	q->bands = qopt->bands;
	for (i = q->bands; i < q->max_bands; i++) {
		if (q->queues[i] != &noop_qdisc) {
			struct Qdisc *child = q->queues[i];
			q->queues[i] = &noop_qdisc;
			qdisc_tree_decrease_qlen(child, child->q.qlen);
			qdisc_destroy(child);
		}
	}

	sch_tree_unlock(sch);

	for (i = 0; i < q->bands; i++) {
		if (q->queues[i] == &noop_qdisc) {
			struct Qdisc *child, *old;
			child = qdisc_create_dflt(qdisc_dev(sch),
						  sch->dev_queue,
						  &pfifo_qdisc_ops,
						  TC_H_MAKE(sch->handle,
							    i + 1));
			if (child) {
				sch_tree_lock(sch);
				old = q->queues[i];
				q->queues[i] = child;

				if (old != &noop_qdisc) {
					qdisc_tree_decrease_qlen(old,
								 old->q.qlen);
					qdisc_destroy(old);
				}
				sch_tree_unlock(sch);
			}
		}
	}
	return 0;
}

开发者ID:KaZoom，项目名称:buildroot-linux-kernel-m3，代码行数:52，代码来源:sch_multiq.c

示例4: sfq_change

static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
{
	struct sfq_sched_data *q = qdisc_priv(sch);
	struct tc_sfq_qopt *ctl = nla_data(opt);
	unsigned int qlen;

	if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
		return -EINVAL;

	sch_tree_lock(sch);
	q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
	q->perturb_period = ctl->perturb_period * HZ;
	if (ctl->limit)
		q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 1);

	qlen = sch->q.qlen;
	while (sch->q.qlen > q->limit)
		sfq_drop(sch);
	qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);

	del_timer(&q->perturb_timer);
	if (q->perturb_period) {
		mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
		q->perturbation = net_random();
	}
	sch_tree_unlock(sch);
	return 0;
}

开发者ID:NKSG，项目名称:INTER_MANET_NS3，代码行数:28，代码来源:sch_sfq.c

示例5: red_change

static int red_change(struct Qdisc *sch, struct rtattr *opt)
{
	struct red_sched_data *q = qdisc_priv(sch);
	struct rtattr *tb[TCA_RED_MAX];
	struct tc_red_qopt *ctl;

	if (opt == NULL || rtattr_parse_nested(tb, TCA_RED_MAX, opt))
		return -EINVAL;

	if (tb[TCA_RED_PARMS-1] == NULL ||
	    RTA_PAYLOAD(tb[TCA_RED_PARMS-1]) < sizeof(*ctl) ||
	    tb[TCA_RED_STAB-1] == NULL ||
	    RTA_PAYLOAD(tb[TCA_RED_STAB-1]) < RED_STAB_SIZE)
		return -EINVAL;

	ctl = RTA_DATA(tb[TCA_RED_PARMS-1]);

	sch_tree_lock(sch);
	q->flags = ctl->flags;
	q->limit = ctl->limit;

	red_set_parms(&q->parms, ctl->qth_min, ctl->qth_max, ctl->Wlog,
				 ctl->Plog, ctl->Scell_log,
				 RTA_DATA(tb[TCA_RED_STAB-1]));

	if (skb_queue_empty(&sch->q))
		red_end_of_idle_period(&q->parms);

	sch_tree_unlock(sch);
	return 0;
}

开发者ID:gnensis，项目名称:linux-2.6.15，代码行数:31，代码来源:sch_red.c

示例6: fq_codel_dump_stats

static int fq_codel_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
{
	struct fq_codel_sched_data *q = qdisc_priv(sch);
	struct tc_fq_codel_xstats st = {
		.type				= TCA_FQ_CODEL_XSTATS_QDISC,
	};
	struct list_head *pos;

	st.qdisc_stats.maxpacket = q->cstats.maxpacket;
	st.qdisc_stats.drop_overlimit = q->drop_overlimit;
	st.qdisc_stats.ecn_mark = q->cstats.ecn_mark;
	st.qdisc_stats.new_flow_count = q->new_flow_count;
	st.qdisc_stats.ce_mark = q->cstats.ce_mark;
	st.qdisc_stats.memory_usage  = q->memory_usage;
	st.qdisc_stats.drop_overmemory = q->drop_overmemory;

	sch_tree_lock(sch);
	list_for_each(pos, &q->new_flows)
		st.qdisc_stats.new_flows_len++;

	list_for_each(pos, &q->old_flows)
		st.qdisc_stats.old_flows_len++;
	sch_tree_unlock(sch);

	return gnet_stats_copy_app(d, &st, sizeof(st));
}

开发者ID:Lyude，项目名称:linux，代码行数:26，代码来源:sch_fq_codel.c

示例7: fq_resize

static int fq_resize(struct Qdisc *sch, u32 log)
{
	struct fq_sched_data *q = qdisc_priv(sch);
	struct rb_root *array;
	void *old_fq_root;
	u32 idx;

	if (q->fq_root && log == q->fq_trees_log)
		return 0;

	/* If XPS was setup, we can allocate memory on right NUMA node */
	array = fq_alloc_node(sizeof(struct rb_root) << log,
			      netdev_queue_numa_node_read(sch->dev_queue));
	if (!array)
		return -ENOMEM;

	for (idx = 0; idx < (1U << log); idx++)
		array[idx] = RB_ROOT;

	sch_tree_lock(sch);

	old_fq_root = q->fq_root;
	if (old_fq_root)
		fq_rehash(q, old_fq_root, q->fq_trees_log, array, log);

	q->fq_root = array;
	q->fq_trees_log = log;

	sch_tree_unlock(sch);

	fq_free(old_fq_root);

	return 0;
}

开发者ID:AK101111，项目名称:linux，代码行数:34，代码来源:sch_fq.c

示例8: gred_change

static int gred_change(struct Qdisc *sch, struct rtattr *opt)
{
	struct gred_sched *table = qdisc_priv(sch);
	struct tc_gred_qopt *ctl;
	struct rtattr *tb[TCA_GRED_MAX];
	int err = -EINVAL, prio = GRED_DEF_PRIO;
	u8 *stab;

	if (opt == NULL || rtattr_parse_nested(tb, TCA_GRED_MAX, opt))
		return -EINVAL;

	if (tb[TCA_GRED_PARMS-1] == NULL && tb[TCA_GRED_STAB-1] == NULL)
		return gred_change_table_def(sch, opt);

	if (tb[TCA_GRED_PARMS-1] == NULL ||
	    RTA_PAYLOAD(tb[TCA_GRED_PARMS-1]) < sizeof(*ctl) ||
	    tb[TCA_GRED_STAB-1] == NULL ||
	    RTA_PAYLOAD(tb[TCA_GRED_STAB-1]) < 256)
		return -EINVAL;

	ctl = RTA_DATA(tb[TCA_GRED_PARMS-1]);
	stab = RTA_DATA(tb[TCA_GRED_STAB-1]);

	if (ctl->DP >= table->DPs)
		goto errout;

	if (gred_rio_mode(table)) {
		if (ctl->prio == 0) {
			int def_prio = GRED_DEF_PRIO;

			if (table->tab[table->def])
				def_prio = table->tab[table->def]->prio;

			printk(KERN_DEBUG "GRED: DP %u does not have a prio "
			       "setting default to %d\n", ctl->DP, def_prio);

			prio = def_prio;
		} else
			prio = ctl->prio;
	}

	sch_tree_lock(sch);

	err = gred_change_vq(sch, ctl->DP, ctl, prio, stab);
	if (err < 0)
		goto errout_locked;

	if (gred_rio_mode(table)) {
		gred_disable_wred_mode(table);
		if (gred_wred_mode_check(sch))
			gred_enable_wred_mode(table);
	}

	err = 0;

errout_locked:
	sch_tree_unlock(sch);
errout:
	return err;
}

开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:60，代码来源:sch_gred.c

示例9: fq_resize

static int fq_resize(struct Qdisc *sch, u32 log)
{
	struct fq_sched_data *q = qdisc_priv(sch);
	struct rb_root *array;
	void *old_fq_root;
	u32 idx;

	if (q->fq_root && log == q->fq_trees_log)
		return 0;

	array = kmalloc(sizeof(struct rb_root) << log, GFP_KERNEL);
	if (!array)
		return -ENOMEM;

	for (idx = 0; idx < (1U << log); idx++)
		array[idx] = RB_ROOT;

	sch_tree_lock(sch);

	old_fq_root = q->fq_root;
	if (old_fq_root)
		fq_rehash(q, old_fq_root, q->fq_trees_log, array, log);

	q->fq_root = array;
	q->fq_trees_log = log;

	sch_tree_unlock(sch);

	kfree(old_fq_root);

	return 0;
}

开发者ID:marceleng，项目名称:linux，代码行数:32，代码来源:sch_fq.c

示例10: sfq_change

static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
{
	struct sfq_sched_data *q = (struct sfq_sched_data *)sch->data;
	struct tc_sfq_qopt *ctl = RTA_DATA(opt);

	if (opt->rta_len < RTA_LENGTH(sizeof(*ctl)))
		return -EINVAL;

	sch_tree_lock(sch);
	q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
	q->perturb_period = ctl->perturb_period*HZ;
	if (ctl->limit)
		q->limit = min_t(u32, ctl->limit, SFQ_DEPTH);

	while (sch->q.qlen >= q->limit-1)
		sfq_drop(sch);

	del_timer(&q->perturb_timer);
	if (q->perturb_period) {
		q->perturb_timer.expires = jiffies + q->perturb_period;
		add_timer(&q->perturb_timer);
	}
	sch_tree_unlock(sch);
	return 0;
}

开发者ID:AttilaLorincz，项目名称:tomato-speedmod，代码行数:25，代码来源:sch_sfq.c

示例11: prio_tune

static int prio_tune(struct Qdisc *sch, struct rtattr *opt)
{
	struct prio_sched_data *q = (struct prio_sched_data *)sch->data;
	struct tc_prio_qopt *qopt = RTA_DATA(opt);
	int i;

	if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
		return -EINVAL;
	if (qopt->bands > TCQ_PRIO_BANDS || qopt->bands < 2)
		return -EINVAL;

	for (i=0; i<=TC_PRIO_MAX; i++) {
		if (qopt->priomap[i] >= qopt->bands)
			return -EINVAL;
	}

	sch_tree_lock(sch);
	q->bands = qopt->bands;
	memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);

	for (i=q->bands; i<TCQ_PRIO_BANDS; i++) {
		struct Qdisc *child = xchg(&q->queues[i], &noop_qdisc);
		if (child != &noop_qdisc)
			qdisc_destroy(child);
	}
	sch_tree_unlock(sch);

	for (i=0; i<=TC_PRIO_MAX; i++) {
		int band = q->prio2band[i];
		if (q->queues[band] == &noop_qdisc) {
			struct Qdisc *child;
			child = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
			if (child) {
				sch_tree_lock(sch);
				child = xchg(&q->queues[band], child);

				if (child != &noop_qdisc)
					qdisc_destroy(child);
				sch_tree_unlock(sch);
			}
		}
	}
	return 0;
}

开发者ID:muromec，项目名称:linux-ezxdev，代码行数:44，代码来源:sch_prio.c

示例12: prio_tune

static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
		     struct netlink_ext_ack *extack)
{
	struct prio_sched_data *q = qdisc_priv(sch);
	struct Qdisc *queues[TCQ_PRIO_BANDS];
	int oldbands = q->bands, i;
	struct tc_prio_qopt *qopt;

	if (nla_len(opt) < sizeof(*qopt))
		return -EINVAL;
	qopt = nla_data(opt);

	if (qopt->bands > TCQ_PRIO_BANDS || qopt->bands < 2)
		return -EINVAL;

	for (i = 0; i <= TC_PRIO_MAX; i++) {
		if (qopt->priomap[i] >= qopt->bands)
			return -EINVAL;
	}

	/* Before commit, make sure we can allocate all new qdiscs */
	for (i = oldbands; i < qopt->bands; i++) {
		queues[i] = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
					      TC_H_MAKE(sch->handle, i + 1),
					      extack);
		if (!queues[i]) {
			while (i > oldbands)
				qdisc_put(queues[--i]);
			return -ENOMEM;
		}
	}

	prio_offload(sch, qopt);
	sch_tree_lock(sch);
	q->bands = qopt->bands;
	memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);

	for (i = q->bands; i < oldbands; i++) {
		struct Qdisc *child = q->queues[i];

		qdisc_tree_reduce_backlog(child, child->q.qlen,
					  child->qstats.backlog);
	}

	for (i = oldbands; i < q->bands; i++) {
		q->queues[i] = queues[i];
		if (q->queues[i] != &noop_qdisc)
			qdisc_hash_add(q->queues[i], true);
	}

	sch_tree_unlock(sch);

	for (i = q->bands; i < oldbands; i++)
		qdisc_put(q->queues[i]);
	return 0;
}

开发者ID:AlexShiLucky，项目名称:linux，代码行数:56，代码来源:sch_prio.c

示例13: sfq_change

static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
{
	struct sfq_sched_data *q = qdisc_priv(sch);
	struct sfq_sched_data tmp;
	struct sk_buff *skb;
	unsigned int qlen;
	int err;

	/* set up tmp queue */
	memset(&tmp, 0, sizeof(struct sfq_sched_data));
	sfq_copy_parameters(&tmp, q);
	if ((err = sfq_q_init(&tmp, opt)))
		return err;

	/* handle perturbation */
	/* This code avoids resetting the perturb_timer unless perturb_period
	 * is changed. Note that the rest of this function leaves
	 * q->perturb_timer alone, whereas all other members of q get
	 * overwritten from tmp. */
	if (!tmp.perturb_period) {
		tmp.perturbation = 0;
		del_timer(&q->perturb_timer);
	} else if (tmp.perturb_period != q->perturb_period) {
		mod_timer(&q->perturb_timer, SFQ_PERTURB(tmp.perturb_period));
	}

	/* move packets from the old queue to the tmp queue */
	sch_tree_lock(sch);
	qlen = sch->q.qlen;
	while (sch->q.qlen >= tmp.limit - 1)
		sfq_drop(sch);
	qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);
	while ((skb = sfq_q_dequeue(q)) != NULL)
		sfq_q_enqueue(skb, &tmp, SFQ_TAIL);

	/* clean up the old queue */
	sfq_q_destroy(q);

	/* copy elements of the tmp queue into the old queue */
	sfq_copy_parameters(q, &tmp);
	q->tail      = tmp.tail;
	q->max_depth = tmp.max_depth;
	q->ht        = tmp.ht;
	q->dep       = tmp.dep;
	q->next      = tmp.next;
	q->allot     = tmp.allot;
	q->hash      = tmp.hash;
	q->qs        = tmp.qs;

	/* finish up */
	sch_tree_unlock(sch);
	return 0;
}

开发者ID:Mr-Aloof，项目名称:wl500g，代码行数:53，代码来源:sch_sfq.c

示例14: codel_change

static int codel_change(struct Qdisc *sch, struct nlattr *opt)
{
	struct codel_sched_data *q = qdisc_priv(sch);
	struct nlattr *tb[TCA_CODEL_MAX + 1];
	unsigned int qlen, dropped = 0;
	int err;

	if (!opt)
		return -EINVAL;

	err = nla_parse_nested(tb, TCA_CODEL_MAX, opt, codel_policy);
	if (err < 0)
		return err;

	sch_tree_lock(sch);

	if (tb[TCA_CODEL_TARGET]) {
		u32 target = nla_get_u32(tb[TCA_CODEL_TARGET]);

		q->params.target = ((u64)target * NSEC_PER_USEC) >> CODEL_SHIFT;
	}

	if (tb[TCA_CODEL_CE_THRESHOLD]) {
		u64 val = nla_get_u32(tb[TCA_CODEL_CE_THRESHOLD]);

		q->params.ce_threshold = (val * NSEC_PER_USEC) >> CODEL_SHIFT;
	}

	if (tb[TCA_CODEL_INTERVAL]) {
		u32 interval = nla_get_u32(tb[TCA_CODEL_INTERVAL]);

		q->params.interval = ((u64)interval * NSEC_PER_USEC) >> CODEL_SHIFT;
	}

	if (tb[TCA_CODEL_LIMIT])
		sch->limit = nla_get_u32(tb[TCA_CODEL_LIMIT]);

	if (tb[TCA_CODEL_ECN])
		q->params.ecn = !!nla_get_u32(tb[TCA_CODEL_ECN]);

	qlen = sch->q.qlen;
	while (sch->q.qlen > sch->limit) {
		struct sk_buff *skb = __skb_dequeue(&sch->q);

		dropped += qdisc_pkt_len(skb);
		qdisc_qstats_backlog_dec(sch, skb);
		qdisc_drop(skb, sch);
	}
	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);

	sch_tree_unlock(sch);
	return 0;
}

开发者ID:513855417，项目名称:linux，代码行数:53，代码来源:sch_codel.c

示例15: fq_codel_dump_class_stats

static int fq_codel_dump_class_stats(struct Qdisc *sch, unsigned long cl,
				     struct gnet_dump *d)
{
	struct fq_codel_sched_data *q = qdisc_priv(sch);
	u32 idx = cl - 1;
	struct gnet_stats_queue qs = { 0 };
	struct tc_fq_codel_xstats xstats;

	if (idx < q->flows_cnt) {
		const struct fq_codel_flow *flow = &q->flows[idx];
		const struct sk_buff *skb;

		memset(&xstats, 0, sizeof(xstats));
		xstats.type = TCA_FQ_CODEL_XSTATS_CLASS;
		xstats.class_stats.deficit = flow->deficit;
		xstats.class_stats.ldelay =
			codel_time_to_us(flow->cvars.ldelay);
		xstats.class_stats.count = flow->cvars.count;
		xstats.class_stats.lastcount = flow->cvars.lastcount;
		xstats.class_stats.dropping = flow->cvars.dropping;
		if (flow->cvars.dropping) {
			codel_tdiff_t delta = flow->cvars.drop_next -
					      codel_get_time();

			xstats.class_stats.drop_next = (delta >= 0) ?
				codel_time_to_us(delta) :
				-codel_time_to_us(-delta);
		}
		if (flow->head) {
			sch_tree_lock(sch);
			skb = flow->head;
			while (skb) {
				qs.qlen++;
				skb = skb->next;
			}
			sch_tree_unlock(sch);
		}
		qs.backlog = q->backlogs[idx];
		qs.drops = flow->dropped;
	}
	if (gnet_stats_copy_queue(d, NULL, &qs, qs.qlen) < 0)
		return -1;
	if (idx < q->flows_cnt)
		return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
	return 0;
}

开发者ID:Lyude，项目名称:linux，代码行数:46，代码来源:sch_fq_codel.c

示例16: fq_dump_stats

static int fq_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
{
	struct fq_sched_data *q = qdisc_priv(sch);
	struct tc_fq_qd_stats st;

	sch_tree_lock(sch);

	st.gc_flows		  = q->stat_gc_flows;
	st.highprio_packets	  = q->stat_internal_packets;
	st.tcp_retrans		  = q->stat_tcp_retrans;
	st.throttled		  = q->stat_throttled;
	st.flows_plimit		  = q->stat_flows_plimit;
	st.pkts_too_long	  = q->stat_pkts_too_long;
	st.allocation_errors	  = q->stat_allocation_errors;
	st.time_next_delayed_flow = q->time_next_delayed_flow - ktime_get_ns();
	st.flows		  = q->flows;
	st.inactive_flows	  = q->inactive_flows;
	st.throttled_flows	  = q->throttled_flows;
	st.unthrottle_latency_ns  = min_t(unsigned long,
					  q->unthrottle_latency_ns, ~0U);
	sch_tree_unlock(sch);

	return gnet_stats_copy_app(d, &st, sizeof(st));
}

开发者ID:acton393，项目名称:linux，代码行数:24，代码来源:sch_fq.c

示例17: fq_change

static int fq_change(struct Qdisc *sch, struct nlattr *opt)
{
	struct fq_sched_data *q = qdisc_priv(sch);
	struct nlattr *tb[TCA_FQ_MAX + 1];
	int err, drop_count = 0;
	u32 fq_log;

	if (!opt)
		return -EINVAL;

	err = nla_parse_nested(tb, TCA_FQ_MAX, opt, fq_policy);
	if (err < 0)
		return err;

	sch_tree_lock(sch);

	fq_log = q->fq_trees_log;

	if (tb[TCA_FQ_BUCKETS_LOG]) {
		u32 nval = nla_get_u32(tb[TCA_FQ_BUCKETS_LOG]);

		if (nval >= 1 && nval <= ilog2(256*1024))
			fq_log = nval;
		else
			err = -EINVAL;
	}
	if (tb[TCA_FQ_PLIMIT])
		sch->limit = nla_get_u32(tb[TCA_FQ_PLIMIT]);

	if (tb[TCA_FQ_FLOW_PLIMIT])
		q->flow_plimit = nla_get_u32(tb[TCA_FQ_FLOW_PLIMIT]);

	if (tb[TCA_FQ_QUANTUM])
		q->quantum = nla_get_u32(tb[TCA_FQ_QUANTUM]);

	if (tb[TCA_FQ_INITIAL_QUANTUM])
		q->initial_quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);

	if (tb[TCA_FQ_FLOW_DEFAULT_RATE])
		q->flow_default_rate = nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);

	if (tb[TCA_FQ_FLOW_MAX_RATE])
		q->flow_max_rate = nla_get_u32(tb[TCA_FQ_FLOW_MAX_RATE]);

	if (tb[TCA_FQ_RATE_ENABLE]) {
		u32 enable = nla_get_u32(tb[TCA_FQ_RATE_ENABLE]);

		if (enable <= 1)
			q->rate_enable = enable;
		else
			err = -EINVAL;
	}

	if (!err)
		err = fq_resize(q, fq_log);

	while (sch->q.qlen > sch->limit) {
		struct sk_buff *skb = fq_dequeue(sch);

		if (!skb)
			break;
		kfree_skb(skb);
		drop_count++;
	}
	qdisc_tree_decrease_qlen(sch, drop_count);

	sch_tree_unlock(sch);
	return err;
}

开发者ID:OliverGesch，项目名称:linux，代码行数:69，代码来源:sch_fq.c

示例18: sfq_change

static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
{
	struct sfq_sched_data *q = qdisc_priv(sch);
	struct tc_sfq_qopt *ctl = nla_data(opt);
	struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
	unsigned int qlen;
	struct red_parms *p = NULL;

	if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
		return -EINVAL;
	if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
		ctl_v1 = nla_data(opt);
	if (ctl->divisor &&
	    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
		return -EINVAL;
	if (ctl_v1 && ctl_v1->qth_min) {
		p = kmalloc(sizeof(*p), GFP_KERNEL);
		if (!p)
			return -ENOMEM;
	}
	sch_tree_lock(sch);
	if (ctl->quantum) {
		q->quantum = ctl->quantum;
		q->scaled_quantum = SFQ_ALLOT_SIZE(q->quantum);
	}
	q->perturb_period = ctl->perturb_period * HZ;
	if (ctl->flows)
		q->maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
	if (ctl->divisor) {
		q->divisor = ctl->divisor;
		q->maxflows = min_t(u32, q->maxflows, q->divisor);
	}
	if (ctl_v1) {
		if (ctl_v1->depth)
			q->maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
		if (p) {
			swap(q->red_parms, p);
			red_set_parms(q->red_parms,
				      ctl_v1->qth_min, ctl_v1->qth_max,
				      ctl_v1->Wlog,
				      ctl_v1->Plog, ctl_v1->Scell_log,
				      NULL,
				      ctl_v1->max_P);
		}
		q->flags = ctl_v1->flags;
		q->headdrop = ctl_v1->headdrop;
	}
	if (ctl->limit) {
		q->limit = min_t(u32, ctl->limit, q->maxdepth * q->maxflows);
		q->maxflows = min_t(u32, q->maxflows, q->limit);
	}

	qlen = sch->q.qlen;
	while (sch->q.qlen > q->limit)
		sfq_drop(sch);
	qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);

	del_timer(&q->perturb_timer);
	if (q->perturb_period) {
		mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
		q->perturbation = prandom_u32();
	}
	sch_tree_unlock(sch);
	kfree(p);
	return 0;
}

开发者ID:AkyZero，项目名称:wrapfs-latest，代码行数:66，代码来源:sch_sfq.c

示例19: tbf_change

static int tbf_change(struct Qdisc *sch, struct nlattr *opt)
{
	int err;
	struct tbf_sched_data *q = qdisc_priv(sch);
	struct nlattr *tb[TCA_TBF_MAX + 1];
	struct tc_tbf_qopt *qopt;
	struct Qdisc *child = NULL;
	struct psched_ratecfg rate;
	struct psched_ratecfg peak;
	u64 max_size;
	s64 buffer, mtu;
	u64 rate64 = 0, prate64 = 0;

	err = nla_parse_nested(tb, TCA_TBF_MAX, opt, tbf_policy);
	if (err < 0)
		return err;

	err = -EINVAL;
	if (tb[TCA_TBF_PARMS] == NULL)
		goto done;

	qopt = nla_data(tb[TCA_TBF_PARMS]);
	if (qopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
		qdisc_put_rtab(qdisc_get_rtab(&qopt->rate,
					      tb[TCA_TBF_RTAB]));

	if (qopt->peakrate.linklayer == TC_LINKLAYER_UNAWARE)
			qdisc_put_rtab(qdisc_get_rtab(&qopt->peakrate,
						      tb[TCA_TBF_PTAB]));

	buffer = min_t(u64, PSCHED_TICKS2NS(qopt->buffer), ~0U);
	mtu = min_t(u64, PSCHED_TICKS2NS(qopt->mtu), ~0U);

	if (tb[TCA_TBF_RATE64])
		rate64 = nla_get_u64(tb[TCA_TBF_RATE64]);
	psched_ratecfg_precompute(&rate, &qopt->rate, rate64);

	max_size = min_t(u64, psched_ns_t2l(&rate, buffer), ~0U);

	if (qopt->peakrate.rate) {
		if (tb[TCA_TBF_PRATE64])
			prate64 = nla_get_u64(tb[TCA_TBF_PRATE64]);
		psched_ratecfg_precompute(&peak, &qopt->peakrate, prate64);
		if (peak.rate_bytes_ps <= rate.rate_bytes_ps) {
			pr_warn_ratelimited("sch_tbf: peakrate %llu is lower than or equals to rate %llu !\n",
					    peak.rate_bytes_ps, rate.rate_bytes_ps);
			err = -EINVAL;
			goto done;
		}

		max_size = min_t(u64, max_size, psched_ns_t2l(&peak, mtu));
	}

	if (max_size < psched_mtu(qdisc_dev(sch)))
		pr_warn_ratelimited("sch_tbf: burst %llu is lower than device %s mtu (%u) !\n",
				    max_size, qdisc_dev(sch)->name,
				    psched_mtu(qdisc_dev(sch)));

	if (!max_size) {
		err = -EINVAL;
		goto done;
	}

	if (q->qdisc != &noop_qdisc) {
		err = fifo_set_limit(q->qdisc, qopt->limit);
		if (err)
			goto done;
	} else if (qopt->limit > 0) {
		child = fifo_create_dflt(sch, &bfifo_qdisc_ops, qopt->limit);
		if (IS_ERR(child)) {
			err = PTR_ERR(child);
			goto done;
		}
	}

	sch_tree_lock(sch);
	if (child) {
		qdisc_tree_decrease_qlen(q->qdisc, q->qdisc->q.qlen);
		qdisc_destroy(q->qdisc);
		q->qdisc = child;
	}
	q->limit = qopt->limit;
	q->mtu = PSCHED_TICKS2NS(qopt->mtu);
	q->max_size = max_size;
	q->buffer = PSCHED_TICKS2NS(qopt->buffer);
	q->tokens = q->buffer;
	q->ptokens = q->mtu;

	memcpy(&q->rate, &rate, sizeof(struct psched_ratecfg));
	if (qopt->peakrate.rate) {
		memcpy(&q->peak, &peak, sizeof(struct psched_ratecfg));
		q->peak_present = true;
	} else {
		q->peak_present = false;
	}

	sch_tree_unlock(sch);
	err = 0;
done:
	return err;
//.........这里部分代码省略.........

开发者ID:BozkurTR，项目名称:kernel，代码行数:101，代码来源:sch_tbf.c

示例20: fq_codel_change

static int fq_codel_change(struct Qdisc *sch, struct nlattr *opt,
			   struct netlink_ext_ack *extack)
{
	struct fq_codel_sched_data *q = qdisc_priv(sch);
	struct nlattr *tb[TCA_FQ_CODEL_MAX + 1];
	int err;

	if (!opt)
		return -EINVAL;

	err = nla_parse_nested(tb, TCA_FQ_CODEL_MAX, opt, fq_codel_policy,
			       NULL);
	if (err < 0)
		return err;
	if (tb[TCA_FQ_CODEL_FLOWS]) {
		if (q->flows)
			return -EINVAL;
		q->flows_cnt = nla_get_u32(tb[TCA_FQ_CODEL_FLOWS]);
		if (!q->flows_cnt ||
		    q->flows_cnt > 65536)
			return -EINVAL;
	}
	sch_tree_lock(sch);

	if (tb[TCA_FQ_CODEL_TARGET]) {
		u64 target = nla_get_u32(tb[TCA_FQ_CODEL_TARGET]);

		q->cparams.target = (target * NSEC_PER_USEC) >> CODEL_SHIFT;
	}

	if (tb[TCA_FQ_CODEL_CE_THRESHOLD]) {
		u64 val = nla_get_u32(tb[TCA_FQ_CODEL_CE_THRESHOLD]);

		q->cparams.ce_threshold = (val * NSEC_PER_USEC) >> CODEL_SHIFT;
	}

	if (tb[TCA_FQ_CODEL_INTERVAL]) {
		u64 interval = nla_get_u32(tb[TCA_FQ_CODEL_INTERVAL]);

		q->cparams.interval = (interval * NSEC_PER_USEC) >> CODEL_SHIFT;
	}

	if (tb[TCA_FQ_CODEL_LIMIT])
		sch->limit = nla_get_u32(tb[TCA_FQ_CODEL_LIMIT]);

	if (tb[TCA_FQ_CODEL_ECN])
		q->cparams.ecn = !!nla_get_u32(tb[TCA_FQ_CODEL_ECN]);

	if (tb[TCA_FQ_CODEL_QUANTUM])
		q->quantum = max(256U, nla_get_u32(tb[TCA_FQ_CODEL_QUANTUM]));

	if (tb[TCA_FQ_CODEL_DROP_BATCH_SIZE])
		q->drop_batch_size = min(1U, nla_get_u32(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]));

	if (tb[TCA_FQ_CODEL_MEMORY_LIMIT])
		q->memory_limit = min(1U << 31, nla_get_u32(tb[TCA_FQ_CODEL_MEMORY_LIMIT]));

	while (sch->q.qlen > sch->limit ||
	       q->memory_usage > q->memory_limit) {
		struct sk_buff *skb = fq_codel_dequeue(sch);

		q->cstats.drop_len += qdisc_pkt_len(skb);
		rtnl_kfree_skbs(skb, skb);
		q->cstats.drop_count++;
	}
	qdisc_tree_reduce_backlog(sch, q->cstats.drop_count, q->cstats.drop_len);
	q->cstats.drop_count = 0;
	q->cstats.drop_len = 0;

	sch_tree_unlock(sch);
	return 0;
}

开发者ID:Lyude，项目名称:linux，代码行数:72，代码来源:sch_fq_codel.c

注：本文中的sch_tree_unlock函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ sch_tree_unlock函数代码示例

示例1: multiq_tune

示例2: prio_tune

示例3: multiq_tune

示例4: sfq_change

示例5: red_change

示例6: fq_codel_dump_stats

示例7: fq_resize

示例8: gred_change

示例9: fq_resize

示例10: sfq_change

示例11: prio_tune

示例12: prio_tune

示例13: sfq_change

示例14: codel_change

示例15: fq_codel_dump_class_stats

示例16: fq_dump_stats

示例17: fq_change

示例18: sfq_change

示例19: tbf_change

示例20: fq_codel_change

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CVE-2020-36276

SimpleSoftwareIO/simple-sms: Send and re

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