From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
To: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>
Cc: Cong Wang <xiyou.wangcong@gmail.com>,
Jiri Pirko <jiri@resnulli.us>,
Jamal Hadi Salim <jhs@mojatatu.com>
Subject: [PATCH] net_sched: always reset qdisc backlog in qdisc_reset()
Date: Wed, 20 Sep 2017 15:45:36 +0300 [thread overview]
Message-ID: <150591153693.113604.8604505743746410801.stgit@buzz> (raw)
SKB stored in qdisc->gso_skb also counted into backlog.
Some qdiscs don't reset backlog to zero in ->reset(),
for example sfq just dequeue and free all queued skb.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
---
net/sched/sch_generic.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 92237e75dbbc..bf8c81e07c70 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -685,6 +685,7 @@ void qdisc_reset(struct Qdisc *qdisc)
qdisc->gso_skb = NULL;
}
qdisc->q.qlen = 0;
+ qdisc->qstats.backlog = 0;
}
EXPORT_SYMBOL(qdisc_reset);
next reply other threads:[~2017-09-20 12:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-20 12:45 Konstantin Khlebnikov [this message]
2017-09-20 23:26 ` [PATCH] net_sched: always reset qdisc backlog in qdisc_reset() Cong Wang
2017-09-21 18:57 ` David Miller
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