linux-kernel - Re: [RFC][PATCH][NET] Fix never pruned tcp out-of-order queue

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Message-Id: <200804151226.47729.vgusev@openvz.org>
Date:	Tue, 15 Apr 2008 12:26:47 +0400
From:	Vitaliy Gusev <vgusev@...nvz.org>
To:	David Miller <davem@...emloft.net>
Cc:	andi@...stfloor.org, kuznet@....inr.ac.ru,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH][NET] Fix never pruned tcp out-of-order queue

On 15 April 2008 12:18:10 David Miller wrote:
> From: Andi Kleen <andi@...stfloor.org>
> Date: Tue, 15 Apr 2008 10:14:56 +0200
> 
> > The main difference seems to be that
> > sk_rmem_schedule/__sk_mem_schedule is called more often, but it is 
> > unclear how this affects the ooo pruning which only checks
> > the queue length anyways.
> 
> tcp_data_queue() would not do the tcp_prune_ofo_queue() in some
> cases, it's the whole point of the patch.

Yes, if second sk_rmem_schedule() failed then tcp_prune_ofo_queue() is force called
and try sk_rmem_schedule() again.


-- 
Thank,
Vitaliy Gusev
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