Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751272AbWA3KZj (ORCPT ); Mon, 30 Jan 2006 05:25:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751273AbWA3KZi (ORCPT ); Mon, 30 Jan 2006 05:25:38 -0500 Received: from linux01.gwdg.de ([134.76.13.21]:41660 "EHLO linux01.gwdg.de") by vger.kernel.org with ESMTP id S1751272AbWA3KZi (ORCPT ); Mon, 30 Jan 2006 05:25:38 -0500 Date: Mon, 30 Jan 2006 11:25:26 +0100 (MET) From: Jan Engelhardt To: Arjan van de Ven cc: Andrew Morton , olaf+list.linux-kernel@olafdietsche.de, eike-kernel@sf-tec.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2.6.16-rc1-git4] accessfs: a permission managing filesystem In-Reply-To: <1138614856.2977.16.camel@laptopd505.fenrus.org> Message-ID: References: <87ek3a8qpy.fsf@goat.bogus.local> <200601231257.28796@bilbo.math.uni-mannheim.de> <87mzhgyomh.fsf@goat.bogus.local> <20060128150137.5ba5af04.akpm@osdl.org> <20060130011630.60f402d8.akpm@osdl.org> <1138614388.2977.10.camel@laptopd505.fenrus.org> <1138614856.2977.16.camel@laptopd505.fenrus.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 768 Lines: 23 >> You can't do that. > >Exactly why not? Assuming there are zero users left in the kernel..... >(which highly obviously is a prerequisite for even thinking about such a >step) Documentation/mutex-design.txt: * - mutexes may not be used in irq contexts I need some locking strategy within irq contexts, and that suggests semaphores do the job. Jan Engelhardt -- | Software Engineer and Linux/Unix Network Administrator | Alphagate Systems, http://alphagate.hopto.org/ | jengelh's site, http://jengelh.hopto.org/ - 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/