Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751788AbXBERde (ORCPT ); Mon, 5 Feb 2007 12:33:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751882AbXBERde (ORCPT ); Mon, 5 Feb 2007 12:33:34 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:57277 "EHLO omx2.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751788AbXBERdd (ORCPT ); Mon, 5 Feb 2007 12:33:33 -0500 Date: Mon, 5 Feb 2007 09:33:20 -0800 (PST) From: Christoph Lameter To: Arjan van de Ven cc: 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: <1170664774.3073.1236.camel@laptopd505.fenrus.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> 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: 691 Lines: 17 On Mon, 5 Feb 2007, Arjan van de Ven wrote: > > I still need a solution for the problem of not having enough page flag > > bits on i386 NUMA. > > I still don't get why you *really* need such a bit. Because otherwise you cannot establish why a page was removed from the LRU. If a page is off the LRU for other reasons then one should not return the page to the LRU in zap_pte_range. How can this determination be made without a page flag? - 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/