Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753811AbYAIHWc (ORCPT ); Wed, 9 Jan 2008 02:22:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751607AbYAIHWY (ORCPT ); Wed, 9 Jan 2008 02:22:24 -0500 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:52156 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751540AbYAIHWY (ORCPT ); Wed, 9 Jan 2008 02:22:24 -0500 Date: Tue, 08 Jan 2008 23:22:23 -0800 (PST) Message-Id: <20080108.232223.211829980.davem@davemloft.net> To: hch@lst.de Cc: airlied@linux.ie, akpm@linux-foundation.org, torvalds@linux-foundation.org, ak@suse.de, pq@iki.fi, jbeulich@novell.com, mingo@elte.hu, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Revert "x86: optimize page faults like all other achitectures and kill notifier cruft" From: David Miller In-Reply-To: <20080109071727.GA10695@lst.de> References: <20080109071727.GA10695@lst.de> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 690 Lines: 17 From: Christoph Hellwig Date: Wed, 9 Jan 2008 08:17:27 +0100 > NACK. If you want to do it you'll need a much better reason and an > in-tree user. And if you want to redo it it should be available for > all platforms with a consistant API. I majorly NACK this as well, we don't want to bring this thing back especially for specialized debugging hacks. You can set a kprobe on the x86 fault handler to do things like mmiotrace. -- 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/