From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751178AbWCULcs (ORCPT ); Tue, 21 Mar 2006 06:32:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751383AbWCULcs (ORCPT ); Tue, 21 Mar 2006 06:32:48 -0500 Received: from e33.co.us.ibm.com ([32.97.110.151]:31651 "EHLO e33.co.us.ibm.com") by vger.kernel.org with ESMTP id S1751178AbWCULcr (ORCPT ); Tue, 21 Mar 2006 06:32:47 -0500 Message-ID: <441FE465.1090602@us.ibm.com> Date: Tue, 21 Mar 2006 06:32:53 -0500 From: "Mike D. Day" User-Agent: Thunderbird 1.5 (Macintosh/20051201) MIME-Version: 1.0 To: Arjan van de Ven CC: xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, gregkh@suse.de Subject: Re: [PATCH 2.6.16-rc6-xen] export Xen Hypervisor attributes to sysfs References: <200603202335.k2KNZEjo005673@mdday.raleigh.ibm.com> <1142925269.3077.10.camel@laptopd505.fenrus.org> <441FD8F3.208@us.ibm.com> <1142939444.3077.55.camel@laptopd505.fenrus.org> In-Reply-To: <1142939444.3077.55.camel@laptopd505.fenrus.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Arjan van de Ven wrote: >> I appreciate the counter argument as well, but think this should be a >> configurable option. > > "a config option" is a cop-out. By proposing a config option you even > admit it's not essential for userspace. The last thing this should be is > a config option; it either is needed and important, and should be there > always, or it's redundant and should be done in userspace. "A config > option" is just admitting that it is the later, but that you need to > justify the time you spent on the kernel patch somewhere ;-) No, not at all. There are two types of Xen kernels: privileged and non-privileged. A privileged kernel has access to real hardware devices. This patch is intended for privileged xen kernel. That's why it needs to be a configurable option. Mike