From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v3] net: Allow no-cache copy from user on transmit
Date: Fri, 01 Apr 2011 20:49:22 -0700 (PDT)
Message-ID: <20110401.204922.28812273.davem@davemloft.net>
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From: Tom Herbert <therbert@google.com>
Date: Wed, 30 Mar 2011 22:04:32 -0700 (PDT)

> This patch uses __copy_from_user_nocache (from skb_copy_to_page)
> on transmit to bypass data cache for a performance improvement.
> This functionality is configurable per device using ethtool.
...
> Signed-off-by: Tom Herbert <therbert@google.com>

It's early in net-next-2.6, so I've applied this now and we can
add any fixups and tweaks as needed.