Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262976AbUCXCEW (ORCPT ); Tue, 23 Mar 2004 21:04:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262981AbUCXCEW (ORCPT ); Tue, 23 Mar 2004 21:04:22 -0500 Received: from holomorphy.com ([207.189.100.168]:12418 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S262976AbUCXCEV (ORCPT ); Tue, 23 Mar 2004 21:04:21 -0500 Date: Tue, 23 Mar 2004 18:03:57 -0800 From: William Lee Irwin III To: Paul Jackson Cc: colpatch@us.ibm.com, linux-kernel@vger.kernel.org, mbligh@aracnet.com, akpm@osdl.org, haveblue@us.ibm.com Subject: Re: [PATCH] nodemask_t x86_64 changes [5/7] Message-ID: <20040324020357.GC791@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Paul Jackson , colpatch@us.ibm.com, linux-kernel@vger.kernel.org, mbligh@aracnet.com, akpm@osdl.org, haveblue@us.ibm.com References: <1079651082.8149.175.camel@arrakis> <20040322230850.1d8f26dc.pj@sgi.com> <20040323101323.GD2045@holomorphy.com> <20040323133650.2044fd8f.pj@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040323133650.2044fd8f.pj@sgi.com> User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1120 Lines: 23 On Tue, Mar 23, 2004 at 01:36:50PM -0800, Paul Jackson wrote: > My current understanding of the complement op is that it is broken for > non-word multiple sizes. There's a good chance I'm still be confused on > this matter. > It might make sense to redo this particular bit of offline logic not by > using *_complement, but rather by looping over all nodes, and only > acting if not online, thus avoiding the *_complement() operator for now. > I have not thought through the performance implications of such a code > inversion, however. If someone's not treating the leftover bits as "don't cares", then there's a bug. Or so goes the current convention. I think originally, I had avoided touching the bits at the end, then the "don't cares" suggestion was incorporated). This doesn't appear to be problematic on smaller systems. Any idea where this bogon might be? -- wli - 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/