linux-kernel - Re: [PATCH] vlan & net drivers: avoid a 4-order allocation

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Date:	Wed, 28 Feb 2007 14:20:13 -0800
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vlan & net drivers: avoid a 4-order allocation

On Wed, 28 Feb 2007 14:41:57 +0200
Dan Aloni <da-x@...atomic.org> wrote:

> Hello,
> 
> This patch splits the vlan_group struct into a multi-allocated struct. On
> x86_64, the size of the original struct is a little more than 32KB, causing
> a 4-order allocation, which is prune to problems caused by buddy-system 
> external fragmentation conditions.
> 
> I couldn't just use vmalloc() because vfree() cannot be called in the
> softirq context of the RCU callback.
> 
> Signed-off-by: Dan Aloni <da-x@...atomic.org>
> 

Please submit patch to proper place: netdev@...r.kernel.org
and Ben Greear <greearb@...delatech.com>



-- 
Stephen Hemminger <shemminger@...ux-foundation.org>
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