Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262345AbUKWJS6 (ORCPT ); Tue, 23 Nov 2004 04:18:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262376AbUKWJS6 (ORCPT ); Tue, 23 Nov 2004 04:18:58 -0500 Received: from mx1.redhat.com ([66.187.233.31]:42442 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S262345AbUKWJS5 (ORCPT ); Tue, 23 Nov 2004 04:18:57 -0500 From: David Howells In-Reply-To: <20041122155434.758c6fff.akpm@osdl.org> References: <20041122155434.758c6fff.akpm@osdl.org> <11948.1101130077@redhat.com> To: Andrew Morton Cc: torvalds@osdl.org, wli@holomorphy.com, hch@infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Compound page overhaul User-Agent: EMH/1.14.1 SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3 (i386-redhat-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII Date: Tue, 23 Nov 2004 09:18:35 +0000 Message-ID: <29356.1101201515@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 716 Lines: 16 Andrew Morton : > ugh, sorry, I'd forgotten that !MMU needs to use the fields inside > pages[1]. It seems that the !MMU requirement is in that case quite > dissimilar from what compound pages are supposed to do. Perhaps we should > just forget the whole thing and stick with the current design approach? Nonono... you misunderstand. Compound-pages support uses fields from page[1] to store extra data. It's nothing at all to do with MMU vs !MMU. David - 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/