netdev - Re: [net-next PATCH v2] net_sched: dsmark: use qdisc_dequeue

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Date:	Sun, 06 Mar 2016 22:49:21 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	Kyeong.Yoo@...iedtelesis.co.nz
Cc:	netdev@...r.kernel.org
Subject: Re: [net-next PATCH v2] net_sched: dsmark: use
 qdisc_dequeue_peeked()

From: Kyeong Yoo <Kyeong.Yoo@...iedtelesis.co.nz>
Date: Thu, 3 Mar 2016 10:25:19 +0000

> 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@...iedtelesis.co.nz>

Your patch is corrupted by your email client, it has MS-DOS style
newlines, etc.