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Date: Tue, 12 Mar 2002 10:07:24 +0100
From: Andi Kleen <ak@suse.de>
To: Rogier Wolff <R.E.Wolff@BitWizard.nl>
Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>,
        linux-net@vger.kernel.org
Subject: Re: zero copy.
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On Tue, Mar 12, 2002 at 09:59:36AM +0100, Rogier Wolff wrote:
> 
> Hi,
> 
> Is linux able to do zero copy?

You can do zero copy on TX by using sendfile() or writing a kernel module. 
Zero copy on RX is not directly supported by the standard network stack.
It's possible to do it via a kernel module again, but very hackish. 

-Andi