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Message-Id: <1465874519-25494-3-git-send-email-edumazet@google.com> Date: Mon, 13 Jun 2016 20:21:51 -0700 From: Eric Dumazet <edumazet@...gle.com> To: "David S . Miller" <davem@...emloft.net> Cc: netdev <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, Eric Dumazet <eric.dumazet@...il.com> Subject: [PATCH net-next 02/10] net_sched: sch_choke: defer skb freeing 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@...gle.com> --- net/sched/sch_choke.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c index 04e0b0583e00..789b69ee9e51 100644 --- a/net/sched/sch_choke.c +++ b/net/sched/sch_choke.c @@ -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; -- 2.8.0.rc3.226.g39d4020
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