From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761939AbYEXUpH (ORCPT ); Sat, 24 May 2008 16:45:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756456AbYEXUo5 (ORCPT ); Sat, 24 May 2008 16:44:57 -0400 Received: from gw.goop.org ([64.81.55.164]:48321 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753222AbYEXUo4 (ORCPT ); Sat, 24 May 2008 16:44:56 -0400 Message-ID: <48387E29.50103@goop.org> Date: Sat, 24 May 2008 21:44:25 +0100 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Linus Torvalds CC: Ingo Molnar , LKML , xen-devel , Thomas Gleixner , Hugh Dickins , Zachary Amsden , kvm-devel , Virtualization Mailing List , Rusty Russell , Peter Zijlstra Subject: Re: [PATCH 0 of 4] mm+paravirt+xen: add pte read-modify-write abstraction References: <48372C2F.1090704@goop.org> In-Reply-To: X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus Torvalds wrote: > On Fri, 23 May 2008, Jeremy Fitzhardinge wrote: > >> Well, you could use it to update the page and protection bits while preserving >> the AD bits, but I don't think that's very useful. >> > > It's not that it's not "very useful" - it's that it would be TOTALLY > WRONG. > Sorry, I was using ironic understatement. I meant "...while preserving the AD bits, but I think that would be totally fucking stupid". J