Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762257AbZD3NkQ (ORCPT ); Thu, 30 Apr 2009 09:40:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761157AbZD3NkA (ORCPT ); Thu, 30 Apr 2009 09:40:00 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:39532 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751868AbZD3NkA (ORCPT ); Thu, 30 Apr 2009 09:40:00 -0400 Date: Thu, 30 Apr 2009 15:38:59 +0200 From: Ingo Molnar To: Christoph Lameter Cc: Mathieu Desnoyers , Linus Torvalds , Andrew Morton , Nick Piggin , KOSAKI Motohiro , Peter Zijlstra , thomas.pi@arcor.dea, Yuriy Lalym , Linux Kernel Mailing List , ltt-dev@lists.casi.polymtl.ca Subject: Re: [PATCH] Fix dirty page accounting in redirty_page_for_writepage() Message-ID: <20090430133859.GB8329@elte.hu> References: <20090429232546.GB15782@Krystal> <20090430024303.GB19875@Krystal> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 950 Lines: 25 * Christoph Lameter wrote: > On Wed, 29 Apr 2009, Mathieu Desnoyers wrote: > > > to have a good look at the memory accounting code. We could > > probably benefit of Christoph Lameter's cpu ops (using segment > > registers to address per-cpu variables with atomic inc/dec) in > > there. Or at least removing interrupt disabling by using preempt > > disable and local_t variables for the per-cpu counters could > > bring some benefit. > > Guess we are ready for atomic per cpu ops now that the new per cpu > allocator is in? Segment register issues with the PDA are also > solved right? it's all done, implemented and upstream already. You are a bit late to the party ;-) Ingo -- 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/