From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] net_sched: always reset qdisc backlog in qdisc_reset()
Date: Thu, 21 Sep 2017 11:57:54 -0700 (PDT)
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To: khlebnikov@yandex-team.ru
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From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Date: Wed, 20 Sep 2017 15:45:36 +0300

> 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")

Applied and queued up for -stable.