linux-kernel - Re: Copy large memory regions from & to userspace

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Message-ID: <Pine.LNX.4.64.0709010810070.11617@fbirervta.pbzchgretzou.qr>
Date:	Sat, 1 Sep 2007 08:10:44 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Robert Hancock <hancockr@...w.ca>
cc:	Clemens Kolbitsch <clemens.kol@....at>,
	Chris Smith <smitty1elkml@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Copy large memory regions from & to userspace


On Aug 31 2007 19:48, Robert Hancock wrote:
>
> I'm not aware of any code in the kernel that does userspace-to-userspace
> copies directly. Likely because there's rarely a need for it?

splice(), sort of.



	Jan
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