From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261389AbUDHA04 (ORCPT ); Wed, 7 Apr 2004 20:26:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261474AbUDHA0z (ORCPT ); Wed, 7 Apr 2004 20:26:55 -0400 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:9421 "EHLO dualathlon.random") by vger.kernel.org with ESMTP id S261389AbUDHA02 (ORCPT ); Wed, 7 Apr 2004 20:26:28 -0400 Date: Thu, 8 Apr 2004 02:26:26 +0200 From: Andrea Arcangeli To: Andi Kleen Cc: Andrew Morton , mbligh@aracnet.com, colpatch@us.ibm.com, linux-kernel@vger.kernel.org Subject: Re: NUMA API for Linux Message-ID: <20040408002626.GZ26888@dualathlon.random> References: <1081373058.9061.16.camel@arrakis> <20040407145130.4b1bdf3e.akpm@osdl.org> <5840000.1081377504@flay> <20040408003809.01fc979e.ak@suse.de> <20040407155225.14936e8a.akpm@osdl.org> <20040408013522.294f0322.ak@suse.de> <20040407165639.2198b215.akpm@osdl.org> <20040408021448.0dbaa80f.ak@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040408021448.0dbaa80f.ak@suse.de> User-Agent: Mutt/1.4.1i X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 08, 2004 at 02:14:48AM +0200, Andi Kleen wrote: > Eliminate the RB color field or use rb_next() instead of vm_next. First > alternative is cheaper. with eliminate I assume you mean to reuse a bit in the vma for that (like vma->vm_flags), somewhere the color bit info is needed to make the rebalanacing in mmap quick but to still guarantee the max height <= 2 * min height.