Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932973AbXBERfG (ORCPT ); Mon, 5 Feb 2007 12:35:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932952AbXBERfG (ORCPT ); Mon, 5 Feb 2007 12:35:06 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:57358 "EHLO omx2.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932978AbXBERfE (ORCPT ); Mon, 5 Feb 2007 12:35:04 -0500 Date: Mon, 5 Feb 2007 09:34:40 -0800 (PST) From: Christoph Lameter To: Matt Mackall cc: Arjan van de Ven , Andrew Morton , linux-kernel@vger.kernel.org, Nick Piggin , KAMEZAWA Hiroyuki , Rik van Riel Subject: Re: [RFC] Tracking mlocked pages and moving them off the LRU In-Reply-To: <20070205163847.GI16722@waste.org> Message-ID: References: <20070203005316.eb0b4042.akpm@linux-foundation.org> <1170525860.3073.1054.camel@laptopd505.fenrus.org> <20070203172242.e5bf2534.akpm@linux-foundation.org> <1170576977.3073.1100.camel@laptopd505.fenrus.org> <1170664774.3073.1236.camel@laptopd505.fenrus.org> <20070205163847.GI16722@waste.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 642 Lines: 17 On Mon, 5 Feb 2007, Matt Mackall wrote: > 2) lazy accounting - the same as above, with the work all moved to the > LRU sweep > 3) accounting with an extra page flag - still needs to scan VMAs on munmap > > Christoph seems to prefer the third. No I am saying that 2 requires 3 to work reliably. The patch I posted last night does 2 but the approach needs page flag in order to work correctly. - 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/