From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752982Ab1AZMus (ORCPT ); Wed, 26 Jan 2011 07:50:48 -0500 Received: from moutng.kundenserver.de ([212.227.126.187]:63810 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751400Ab1AZMur (ORCPT ); Wed, 26 Jan 2011 07:50:47 -0500 From: Arnd Bergmann To: Andi Kleen Subject: Re: [PATCH 10/20] hpfs: replace BKL with a global mutex Date: Wed, 26 Jan 2011 13:50:42 +0100 User-Agent: KMail/1.12.2 (Linux/2.6.35-22-generic; KDE/4.3.2; x86_64; ; ) Cc: linux-kernel@vger.kernel.org References: <1295993854-4971-1-git-send-email-arnd@arndb.de> <1295993854-4971-11-git-send-email-arnd@arndb.de> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201101261350.42789.arnd@arndb.de> X-Provags-ID: V02:K0:ZkYmJ6nn2AdK3zObRMrLbtYHMlksElhxfkd6tU2Uxol FIglFa4VJ/iQ9XDayStLImK5lduCD03DkJAhlx4TsOR9TwWTow 5R56tgNTtcCITHFmLH4BLhB+yLl+5dIGOvmXEAmGlsYUUvVBIq vpvlBt2HLdtq6qGGu+ymQ4yKXE+zAlN4Rs1eW8qmQ+1YXUE2rX b9AfHQsOXJSfVtG0v6vSA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 26 January 2011, Andi Kleen wrote: > I don't think that's a very good idea, there's danger > of holding it over IO and that would be really bad (as in like MINIX[1]) > > It would be better to do it the i810 way and check for the number of > CPUs at module init time and refuse to run if it's > 1 I don't see much value of one evil over the other, but why not. The code is going away anyway unless someone cleans it up further. Arnd