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

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Message-Id: <20070302.134802.77406133.davem@davemloft.net>
Date:	Fri, 02 Mar 2007 13:48:02 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	da-x@...atomic.org
Cc:	netdev@...r.kernel.org, greearb@...delatech.com
Subject: Re: [PATCH] vlan & net drivers: avoid a 4-order allocation]

From: Dan Aloni <da-x@...atomic.org>
Date: Thu, 1 Mar 2007 12:02:17 +0200

> 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>

No objections, this really needs to be fixed, applied.

Thank you.
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