From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932154AbWGXTAw (ORCPT ); Mon, 24 Jul 2006 15:00:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932295AbWGXTAw (ORCPT ); Mon, 24 Jul 2006 15:00:52 -0400 Received: from mx1.redhat.com ([66.187.233.31]:52666 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S932154AbWGXTAv (ORCPT ); Mon, 24 Jul 2006 15:00:51 -0400 Message-ID: <44C518D6.3090606@redhat.com> Date: Mon, 24 Jul 2006 15:00:38 -0400 From: Rik van Riel Organization: Red Hat, Inc User-Agent: Thunderbird 1.5.0.4 (X11/20060614) MIME-Version: 1.0 To: Christoph Lameter CC: Peter Zijlstra , linux-mm , Linus Torvalds , Andrew Morton , linux-kernel Subject: Re: [PATCH] mm: inactive-clean list References: <1153167857.31891.78.camel@lappy> <44C30E33.2090402@redhat.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Christoph Lameter wrote: > On Sun, 23 Jul 2006, Rik van Riel wrote: > >> This patch makes it possible to implement Martin Schwidefsky's >> hypervisor-based fast page reclaiming for architectures without >> millicode - ie. Xen, UML and all other non-s390 architectures. >> >> That could be a big help in heavily loaded virtualized environments. >> >> The fact that it helps prevent the iSCSI memory deadlock is a >> huge bonus too, of course :) > > I think there may be a way with less changes to the way the VM functions > to get there: That approach probably has way too many state changes going between the guest OS and the hypervisor... -- "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." - Brian W. Kernighan