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net_sched: sch_choke: defer skb freeing

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choke_reset() and choke_change() can use rtnl_qdisc_drop()
to defer expensive skb freeing after locks are released.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2016-06-13 20:21:51 -07:00 committed by David S. Miller
parent 1b5c5493e3
commit f9aed311b6
1 changed files with 4 additions and 4 deletions
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8
net/sched/sch_choke.c
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@ -375,11 +375,11 @@ static void choke_reset(struct Qdisc *sch)
q->head = (q->head + 1) & q->tab_mask;
if (!skb)
continue;
qdisc_qstats_backlog_dec(sch, skb);
--sch->q.qlen;
qdisc_drop(skb, sch);
rtnl_qdisc_drop(skb, sch);
}
sch->q.qlen = 0;
sch->qstats.backlog = 0;
memset(q->tab, 0, (q->tab_mask + 1) * sizeof(struct sk_buff *));
q->head = q->tail = 0;
red_restart(&q->vars);
@ -455,7 +455,7 @@ static int choke_change(struct Qdisc *sch, struct nlattr *opt)
dropped += qdisc_pkt_len(skb);
qdisc_qstats_backlog_dec(sch, skb);
--sch->q.qlen;
qdisc_drop(skb, sch);
rtnl_qdisc_drop(skb, sch);
}
qdisc_tree_reduce_backlog(sch, oqlen - sch->q.qlen, dropped);
q->head = 0;