Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755806AbYAXTJs (ORCPT ); Thu, 24 Jan 2008 14:09:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752313AbYAXTJi (ORCPT ); Thu, 24 Jan 2008 14:09:38 -0500 Received: from gw.goop.org ([64.81.55.164]:39176 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752279AbYAXTJh (ORCPT ); Thu, 24 Jan 2008 14:09:37 -0500 Message-ID: <4798E26D.6010908@goop.org> Date: Thu, 24 Jan 2008 11:09:33 -0800 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: =?ISO-8859-1?Q?=22Oliver_Pinter_=28Pint=E9r_Oliv=E9r=29=22?= CC: Adrian Bunk , David Miller , Greg KH , Greg KH , Linus Torvalds , Linux Kernel , Andrew Morton , Randy Dunlap , Al Viro , Arnd Bergmann Subject: Re: Add common orderly_poweroff() to 2.6.22? References: <6101e8c40801210959v1e0f6e55w26187dc93a09a202@mail.gmail.com> <4798C817.6020702@goop.org> <6101e8c40801241033m7347ec5fof8e41c3fe7974feb@mail.gmail.com> In-Reply-To: <6101e8c40801241033m7347ec5fof8e41c3fe7974feb@mail.gmail.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1207 Lines: 36 Oliver Pinter (Pint?r Oliv?r) wrote: > On 1/24/08, Jeremy Fitzhardinge wrote: > >> Oliver Pinter (Pint?r Oliv?r) wrote: >> >>> Hi all! >>> >>> commit in mainline 10a0a8d4e3f6bf2d077f94344441909abe670f5a is go in >>> the satble 2.6.22 >>> >>> the grund for this question is http://hup.hu/node/49773 . >>> >>> >> Is there a compelling reason? >> > > no, but in forum some person have the question, why the kernel call > userspace program and it is secure or not... > Ah, my non-existent knowledge of Hungarian wasn't up to interpreting that page ;) It should be secure if done properly. Of course, if you set the "poweroff" executable to something untrustworthy then you'll have a problem, but there's no inherent security problem there. And if you want to do an orderly shutdown, you need to have some amount of help from the userspace side of things, and invoking a command is the normal way to do this. J -- 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/