Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759522AbZKFRKR (ORCPT ); Fri, 6 Nov 2009 12:10:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759445AbZKFRKR (ORCPT ); Fri, 6 Nov 2009 12:10:17 -0500 Received: from smtp.ultrahosting.com ([74.213.175.253]:53364 "EHLO smtp.ultrahosting.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1759364AbZKFRKQ (ORCPT ); Fri, 6 Nov 2009 12:10:16 -0500 Date: Fri, 6 Nov 2009 12:08:54 -0500 (EST) From: Christoph Lameter X-X-Sender: cl@V090114053VZO-1 To: Andi Kleen cc: npiggin@suse.de, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Tejun Heo , Ingo Molnar , KAMEZAWA Hiroyuki , "hugh.dickins@tiscali.co.uk" Subject: Re: Subject: [RFC MM] mmap_sem scaling: Use mutex and percpu counter instead In-Reply-To: <20091106073946.GV31511@one.firstfloor.org> Message-ID: References: <87r5sc7kst.fsf@basil.nowhere.org> <20091106073946.GV31511@one.firstfloor.org> 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: 409 Lines: 11 On Fri, 6 Nov 2009, Andi Kleen wrote: > Yes but all the major calls still take mmap_sem, which is not ranged. But exactly that issue is addressed by this patch! -- 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/