From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 2 May 2002 17:41:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 2 May 2002 17:41:55 -0400 Received: from e31.co.us.ibm.com ([32.97.110.129]:3769 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id ; Thu, 2 May 2002 17:41:53 -0400 Date: Thu, 02 May 2002 15:39:54 -0700 From: "Martin J. Bligh" To: Andrea Arcangeli cc: Daniel Phillips , Russell King , linux-kernel@vger.kernel.org Subject: Re: Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] Message-ID: <150570000.1020379194@flay> In-Reply-To: <20020502205741.O11414@dualathlon.random> X-Mailer: Mulberry/2.1.2 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > The difference is that if you use discontigmem you don't clobber the > common code in any way, there is no "logical/ordinal" abstraction, > there is no special table, it's all hidden in the arch section, and the > pgdat you need them anyways to allocate from affine memory with numa. I *want* the logical / ordinal abstraction. That's not a negative thing - it reduces the number of complicated things I have to think about, allowing me to think more clearly, and write correct code ;-) Not having a multitude of zones to balance in the normal discontigmem case also seems like a powerful argument to me ... M.