From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762690AbYETI4f (ORCPT ); Tue, 20 May 2008 04:56:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753386AbYETI42 (ORCPT ); Tue, 20 May 2008 04:56:28 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:33429 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752853AbYETI41 (ORCPT ); Tue, 20 May 2008 04:56:27 -0400 Date: Tue, 20 May 2008 09:42:53 +0100 From: Alan Cox To: Arnd Bergmann Cc: Jonathan Corbet , Linus Torvalds , Ingo Molnar , Andrew Morton , Peter Zijlstra , Thomas Gleixner , Alexander Viro , linux-kernel@vger.kernel.org, Wim Van Sebroeck Subject: Re: [PATCH 2/3, RFC] watchdog dev BKL pushdown Message-ID: <20080520094253.646c7198@core> In-Reply-To: <200805200114.24819.arnd@arndb.de> References: <13762.1211142411@vena.lwn.net> <200805200107.51659.arnd@arndb.de> <200805200111.47275.arnd@arndb.de> <200805200114.24819.arnd@arndb.de> X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 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 On Tue, 20 May 2008 01:14:23 +0200 Arnd Bergmann wrote: > The Big Kernel Lock has been pushed down from chardev_open > to misc_open, this change moves it to the individual watchdog > driver open functions. NAK. I've posted set of bigger patches which actually fix up all the watchdog locking code - and simply adding lock/unlock kernel isn't enough because of all the bugs in the code (it won't make it worse but it won't fix it either). Alan