From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756273AbYAIU1G (ORCPT ); Wed, 9 Jan 2008 15:27:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756536AbYAIU0v (ORCPT ); Wed, 9 Jan 2008 15:26:51 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:54170 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756525AbYAIU0t (ORCPT ); Wed, 9 Jan 2008 15:26:49 -0500 Date: Wed, 9 Jan 2008 20:26:44 +0000 From: Christoph Hellwig To: Pavel Roskin Cc: benh@kernel.crashing.org, Christoph Hellwig , Dave Airlie , Pekka Paalanen , linux-kernel@vger.kernel.org, jbeulich@novell.com Subject: Re: Replacement for page fault notifiers? Message-ID: <20080109202644.GA5514@infradead.org> References: <20080108210638.5c9e093a@daedalus.pq.iki.fi> <20080108203235.GA772@infradead.org> <21d7e9970801081413n307ab07aq462a9fff014143ae@mail.gmail.com> <1199838407.6734.83.camel@pasglop> <1199902724.8050.11.camel@dv> <20080109182157.GA32754@infradead.org> <1199908703.6734.133.camel@pasglop> <1199910256.11485.14.camel@dv> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1199910256.11485.14.camel@dv> User-Agent: Mutt/1.5.17 (2007-11-01) X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 09, 2008 at 03:24:16PM -0500, Pavel Roskin wrote: > I just assumed (wrongly, as it seems) that the API change didn't remove > any useful functionality. No, this was exactly the correct assumption. Out of tree modules simply don't count. > The problem is that mmiotrace only makes sense in combination with > non-free drivers, and I'm not sure it would be welcome in the kernel > even if you say so. It can trace every driver in theory although it's of course not really interesting for free drivers. But it's not actually functionality used by the drivers but functionlity to trace the drivers so it's quite different anyway. > Exactly. In MadWifi, they are inlined on i386 and x86_64, and I cannot > ask every user with an unsupported card to get a Mac. Maybe it's time to do some simple xoring in the ioremap return value to force them not to do such stupid things..