netdev - Re: [PATCH 4/5] netem: avoid excessive requeues

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Date:	Thu, 22 Mar 2007 14:08:16 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	kaber@...sh.net
Cc:	shemminger@...ux-foundation.org, netdev@...r.kernel.org
Subject: Re: [PATCH 4/5] netem: avoid excessive requeues

From: Patrick McHardy <kaber@...sh.net>
Date: Thu, 22 Mar 2007 21:40:43 +0100

> > --- net-2.6.22.orig/net/sched/sch_netem.c
> > +++ net-2.6.22/net/sched/sch_netem.c
> > @@ -272,6 +272,10 @@ static struct sk_buff *netem_dequeue(str
> >  	struct netem_sched_data *q = qdisc_priv(sch);
> >  	struct sk_buff *skb;
> >  
> > +	smp_mb();
> > +	if (sch->flags & TCQ_F_THROTTLED)
> > +		return NULL;
> > +
> 
> 
> Perhaps we should put this in qdisc_restart, other qdiscs have the
> same problem.

Agreed, patches welcome :)
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