Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262986AbVD2VE6 (ORCPT ); Fri, 29 Apr 2005 17:04:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262983AbVD2VDW (ORCPT ); Fri, 29 Apr 2005 17:03:22 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:30628 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S262407AbVD2VCl (ORCPT ); Fri, 29 Apr 2005 17:02:41 -0400 Date: Fri, 29 Apr 2005 22:02:40 +0100 From: Christoph Hellwig To: Christoph Lameter Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-ia64@vger.kernel.org Subject: Re: [PATCH 3/3] Page Fault Scalability V20: Avoid lock for anonymous write fault Message-ID: <20050429210240.GA14774@infradead.org> Mail-Followup-To: Christoph Hellwig , Christoph Lameter , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-ia64@vger.kernel.org References: <20050429195901.15694.28520.sendpatchset@schroedinger.engr.sgi.com> <20050429195917.15694.21053.sendpatchset@schroedinger.engr.sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050429195917.15694.21053.sendpatchset@schroedinger.engr.sgi.com> User-Agent: Mutt/1.4.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 784 Lines: 15 On Fri, Apr 29, 2005 at 12:59:17PM -0700, Christoph Lameter wrote: > Do not use the page_table_lock in do_anonymous_page. This will significantly > increase the parallelism in the page fault handler for SMP systems. The patch > also modifies the definitions of _mm_counter functions so that rss and anon_rss > become atomic (and will use atomic64_t if available). I thought we said all architectures should provide an atomic64_t (and given that it's not actually 64bit on 32bit architecture we should probably rename it to atomic_long_t) - 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/