Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932352AbWE3RZi (ORCPT ); Tue, 30 May 2006 13:25:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932353AbWE3RZi (ORCPT ); Tue, 30 May 2006 13:25:38 -0400 Received: from gold.veritas.com ([143.127.12.110]:60527 "EHLO gold.veritas.com") by vger.kernel.org with ESMTP id S932352AbWE3RZh (ORCPT ); Tue, 30 May 2006 13:25:37 -0400 X-IronPort-AV: i="4.05,190,1146466800"; d="scan'208"; a="60015125:sNHT33796200" Date: Tue, 30 May 2006 18:25:29 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@blonde.wat.veritas.com To: Christoph Lameter cc: David Howells , Peter Zijlstra , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , Christoph Lameter , Martin Bligh , Nick Piggin , Linus Torvalds Subject: Re: [PATCH 1/3] mm: tracking shared dirty pages In-Reply-To: Message-ID: References: <20060525135534.20941.91650.sendpatchset@lappy> <20060525135555.20941.36612.sendpatchset@lappy> <24747.1148653985@warthog.cambridge.redhat.com> <12042.1148976035@warthog.cambridge.redhat.com> <7966.1149006374@warthog.cambridge.redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-OriginalArrivalTime: 30 May 2006 17:25:37.0090 (UTC) FILETIME=[10AE3A20:01C6840E] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 784 Lines: 19 On Tue, 30 May 2006, Christoph Lameter wrote: > On Tue, 30 May 2006, David Howells wrote: > > > What's wrong with my suggestion anyway? > > Adds yet another method with functionality that for the most part > is the same as set_page_dirty(). Your original question, whether they could be combined, was a good one; and I hoped you'd be right. But I agree with David, they cannot, unless we sacrifice the guarantee that one or the other is there to give. It's much like the relationship between ->prepare_write and ->commit_write. Hugh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/