Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752210AbZCISvS (ORCPT ); Mon, 9 Mar 2009 14:51:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752191AbZCISu5 (ORCPT ); Mon, 9 Mar 2009 14:50:57 -0400 Received: from smtp3.ultrahosting.com ([74.213.175.254]:43203 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752780AbZCISu4 (ORCPT ); Mon, 9 Mar 2009 14:50:56 -0400 Date: Mon, 9 Mar 2009 14:50:06 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@qirst.com To: David Rientjes cc: Andrew Morton , Pekka Enberg , Matt Mackall , Paul Menage , Randy Dunlap , linux-kernel@vger.kernel.org Subject: Re: [patch -mm] cpusets: add memory_slab_hardwall flag In-Reply-To: Message-ID: References: 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: 418 Lines: 11 Again these are fastpath modifications. Scanning the partial list for matching nodes is an expensive operation. Adding RCU into the fast paths is also another big worry. -- 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/