From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755832AbYAIERX (ORCPT ); Tue, 8 Jan 2008 23:17:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752469AbYAIERQ (ORCPT ); Tue, 8 Jan 2008 23:17:16 -0500 Received: from ns.suse.de ([195.135.220.2]:58487 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752331AbYAIERP (ORCPT ); Tue, 8 Jan 2008 23:17:15 -0500 From: Andi Kleen Organization: SUSE Linux Products GmbH, Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg) To: Andrew Morton Subject: Re: [PATCH] Revert "x86: optimize page faults like all other achitectures and kill notifier cruft" Date: Wed, 9 Jan 2008 05:17:11 +0100 User-Agent: KMail/1.9.6 Cc: Dave Airlie , torvalds@linux-foundation.org, hch@lst.de, pq@iki.fi, jbeulich@novell.com, mingo@elte.hu, linux-kernel@vger.kernel.org References: <20080108192951.a4dc394f.akpm@linux-foundation.org> In-Reply-To: <20080108192951.a4dc394f.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200801090517.11410.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > An alternative might be to come up with something decent and target 2.6.24.x If you want zero cache line cost the only way is to handle that using Mathieu's inline patch infrastructure. Having a generic notifier type based on that would be probably a good idea. -Andi