netdev - Re: [RFC net-next PATCH V1 1/9] net: frag evictor, avoid killing warm frag queues

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Message-ID: <1353757012.11754.110.camel@localhost>
Date:	Sat, 24 Nov 2012 12:36:52 +0100
From:	Jesper Dangaard Brouer <brouer@...hat.com>
To:	Florian Westphal <fw@...len.de>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Thomas Graf <tgraf@...g.ch>, Cong Wang <amwang@...hat.com>,
	Patrick McHardy <kaber@...sh.net>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Herbert Xu <herbert@...dor.hengli.com.au>
Subject: Re: [RFC net-next PATCH V1 1/9] net: frag evictor, avoid killing
 warm frag queues

On Fri, 2012-11-23 at 20:58 +0100, Florian Westphal wrote:
> Jesper Dangaard Brouer <brouer@...hat.com> wrote:
> > +// TODO: Idea what about also looking at flag INET_FRAG_FIRST_IN
> > +// just as safe-guard against frags with a dropped "head" packet
> > +		if (!force && q->creation_ts == (u32) jiffies) {
> 
> I think we should not rely on head fragment arriving first.

Good point.  Lets keep the current approach.

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Sr. Network Kernel Developer at Red Hat
  Author of http://www.iptv-analyzer.org
  LinkedIn: http://www.linkedin.com/in/brouer


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