From: David Miller <davem@davemloft.net>
To: kyeong.yoo@alliedtelesis.co.nz
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next v3] net_sched: dsmark: use qdisc_dequeue_peeked()
Date: Tue, 08 Mar 2016 14:36:12 -0500 (EST) [thread overview]
Message-ID: <20160308.143612.780302416140653742.davem@davemloft.net> (raw)
In-Reply-To: <20160307040735.17574.71568.stgit@kyeongy-dl>
From: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>
Date: Mon, 07 Mar 2016 17:07:57 +1300
> This fix is for dsmark similar to commit 3557619f0f6f7496ed453d4825e249
> ("net_sched: prio: use qdisc_dequeue_peeked")
> and makes use of qdisc_dequeue_peeked() instead of direct dequeue() call.
>
> First time, wrr peeks dsmark, which will then peek into sfq.
> sfq dequeues an skb and it's stored in sch->gso_skb.
> Next time, wrr tries to dequeue from dsmark, which will call sfq dequeue
> directly. This results skipping the previously peeked skb.
>
> So changed dsmark dequeue to call qdisc_dequeue_peeked() instead to use
> peeked skb if exists.
>
> Signed-off-by: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>
Applied, thank you.
prev parent reply other threads:[~2016-03-08 19:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-07 4:07 [PATCH net-next v3] net_sched: dsmark: use qdisc_dequeue_peeked() Kyeong Yoo
2016-03-08 19:36 ` David Miller [this message]
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