From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 30 Jan 2008 01:59:12 +0100 From: Andrea Arcangeli Subject: Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges Message-ID: <20080130005912.GC7233@v2.random> References: <20080128202923.849058104@sgi.com> <20080129162004.GL7233@v2.random> <20080129211759.GV7233@v2.random> <20080129220212.GX7233@v2.random> <20080130000039.GA7233@v2.random> <20080130000559.GB7233@v2.random> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Robin Holt , Avi Kivity , Izik Eidus , Nick Piggin , kvm-devel@lists.sourceforge.net, Benjamin Herrenschmidt , Peter Zijlstra , steiner@sgi.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, daniel.blueman@quadrics.com, Hugh Dickins List-ID: On Tue, Jan 29, 2008 at 04:22:46PM -0800, Christoph Lameter wrote: > That is only partially true. pte are created wronly in order to track > dirty state these days. The first write will lead to a fault that switches > the pte to writable. When the page undergoes writeback the page again > becomes write protected. Thus our need to effectively deal with > page_mkclean. Well I was talking about anonymous memory. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org