Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030243AbWCQSEU (ORCPT ); Fri, 17 Mar 2006 13:04:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751424AbWCQSEU (ORCPT ); Fri, 17 Mar 2006 13:04:20 -0500 Received: from verein.lst.de ([213.95.11.210]:63106 "EHLO mail.lst.de") by vger.kernel.org with ESMTP id S1751351AbWCQSET (ORCPT ); Fri, 17 Mar 2006 13:04:19 -0500 Date: Fri, 17 Mar 2006 19:03:55 +0100 From: Christoph Hellwig To: carsteno@de.ibm.com Cc: Jes Sorensen , Benjamin Herrenschmidt , Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, hch@lst.de, Hugh Dickins Subject: Re: [patch] mspec - special memory driver and do_no_pfn handler Message-ID: <20060317180355.GA8232@lst.de> References: <20060316163728.06f49c00.akpm@osdl.org> <1142571490.9022.37.camel@localhost.localdomain> <441A7E34.90508@sgi.com> <441AB9A9.2000704@de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <441AB9A9.2000704@de.ibm.com> User-Agent: Mutt/1.3.28i X-Spam-Score: -4.901 () BAYES_00 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 754 Lines: 16 On Fri, Mar 17, 2006 at 02:29:13PM +0100, Carsten Otte wrote: > Jes Sorensen wrote: > > Well then the question is, would it simplify the code using no_pfn in > > this case? Hacking up fake struct page entries seems even more of a > > hack to me. > I second that. That's were we are with our dcss xip thing today. > It _is_ a hack to have a struct page that you don't need. The same is true for the SPU support. The way it's done currently works which is great, but the way it's done is everything but nice. - 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/