Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762860AbZD3Ndn (ORCPT ); Thu, 30 Apr 2009 09:33:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760939AbZD3Ndd (ORCPT ); Thu, 30 Apr 2009 09:33:33 -0400 Received: from smtp.ultrahosting.com ([74.213.174.254]:50896 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758357AbZD3Ndd (ORCPT ); Thu, 30 Apr 2009 09:33:33 -0400 Date: Thu, 30 Apr 2009 09:22:22 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@qirst.com To: Mathieu Desnoyers cc: Linus Torvalds , Andrew Morton , Nick Piggin , Ingo Molnar , 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() In-Reply-To: <20090430024303.GB19875@Krystal> Message-ID: References: <20090429232546.GB15782@Krystal> <20090430024303.GB19875@Krystal> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 780 Lines: 17 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? -- 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/