From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 1 May 2002 21:05:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 1 May 2002 21:05:32 -0400 Received: from dsl-213-023-038-139.arcor-ip.net ([213.23.38.139]:53913 "EHLO starship") by vger.kernel.org with ESMTP id ; Wed, 1 May 2002 21:05:31 -0400 Content-Type: text/plain; charset=US-ASCII From: Daniel Phillips To: Andrea Arcangeli Subject: Re: Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] Date: Wed, 1 May 2002 03:05:48 +0200 X-Mailer: KMail [version 1.3.2] Cc: Russell King , linux-kernel@vger.kernel.org In-Reply-To: <20020426192711.D18350@flint.arm.linux.org.uk> <20020501042341.G11414@dualathlon.random> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 01 May 2002 01:12, I wrote: > Config_discontigmem > ------------------- > > Has exactly one purpose: to eliminate memory wastage due to struct pages > that refer to unpopulated regions of memory... That is, when not used together with config_numa. When used with config_numa, it has a second purpose: to allow ->mem_map arrays to exist on the same numa node as the referenced pages. The config_nonlinear patch could be extended to handle this as well (by elaborating the definitions of virt_to_page and phys_to_page) but I don't have plans to do that at this time. -- Daniel