71 	struct Qdisc *sch = ctx;  in dequeue_func()  local
72 	struct sk_buff *skb = __qdisc_dequeue_head(&sch->q);  in dequeue_func()
75 		sch->qstats.backlog -= qdisc_pkt_len(skb);  in dequeue_func()
83 	struct Qdisc *sch = ctx;  in drop_func()  local
86 	qdisc_qstats_drop(sch);  in drop_func()
89 static struct sk_buff *codel_qdisc_dequeue(struct Qdisc *sch)  in codel_qdisc_dequeue()  argument
91 	struct codel_sched_data *q = qdisc_priv(sch);  in codel_qdisc_dequeue()
94 	skb = codel_dequeue(sch, &sch->qstats.backlog, &q->params, &q->vars,  in codel_qdisc_dequeue()
101 	if (q->stats.drop_count && sch->q.qlen) {  in codel_qdisc_dequeue()
102 		qdisc_tree_reduce_backlog(sch, q->stats.drop_count, q->stats.drop_len);  in codel_qdisc_dequeue()
107 		qdisc_bstats_update(sch, skb);  in codel_qdisc_dequeue()
111 static int codel_qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch,  in codel_qdisc_enqueue()  argument
116 	if (likely(qdisc_qlen(sch) < sch->limit)) {  in codel_qdisc_enqueue()
118 		return qdisc_enqueue_tail(skb, sch);  in codel_qdisc_enqueue()
120 	q = qdisc_priv(sch);  in codel_qdisc_enqueue()
122 	return qdisc_drop(skb, sch, to_free);  in codel_qdisc_enqueue()
133 static int codel_change(struct Qdisc *sch, struct nlattr *opt,  in codel_change()  argument
136 	struct codel_sched_data *q = qdisc_priv(sch);  in codel_change()
149 	sch_tree_lock(sch);  in codel_change()
170 		sch->limit = nla_get_u32(tb[TCA_CODEL_LIMIT]);  in codel_change()
175 	qlen = sch->q.qlen;  in codel_change()
176 	while (sch->q.qlen > sch->limit) {  in codel_change()
177 		struct sk_buff *skb = __qdisc_dequeue_head(&sch->q);  in codel_change()
180 		qdisc_qstats_backlog_dec(sch, skb);  in codel_change()
181 		rtnl_qdisc_drop(skb, sch);  in codel_change()
183 	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);  in codel_change()
185 	sch_tree_unlock(sch);  in codel_change()
189 static int codel_init(struct Qdisc *sch, struct nlattr *opt,  in codel_init()  argument
192 	struct codel_sched_data *q = qdisc_priv(sch);  in codel_init()
194 	sch->limit = DEFAULT_CODEL_LIMIT;  in codel_init()
199 	q->params.mtu = psched_mtu(qdisc_dev(sch));  in codel_init()
202 		int err = codel_change(sch, opt, extack);  in codel_init()
208 	if (sch->limit >= 1)  in codel_init()
209 		sch->flags |= TCQ_F_CAN_BYPASS;  in codel_init()
211 		sch->flags &= ~TCQ_F_CAN_BYPASS;  in codel_init()
216 static int codel_dump(struct Qdisc *sch, struct sk_buff *skb)  in codel_dump()  argument
218 	struct codel_sched_data *q = qdisc_priv(sch);  in codel_dump()
228 			sch->limit) ||  in codel_dump()
245 static int codel_dump_stats(struct Qdisc *sch, struct gnet_dump *d)  in codel_dump_stats()  argument
247 	const struct codel_sched_data *q = qdisc_priv(sch);  in codel_dump_stats()
271 static void codel_reset(struct Qdisc *sch)  in codel_reset()  argument
273 	struct codel_sched_data *q = qdisc_priv(sch);  in codel_reset()
275 	qdisc_reset_queue(sch);  in codel_reset()