From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752474AbXBZXfG (ORCPT ); Mon, 26 Feb 2007 18:35:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752477AbXBZXfF (ORCPT ); Mon, 26 Feb 2007 18:35:05 -0500 Received: from terminus.zytor.com ([192.83.249.54]:40856 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752474AbXBZXfD (ORCPT ); Mon, 26 Feb 2007 18:35:03 -0500 Message-ID: <45E36D76.5030507@zytor.com> Date: Mon, 26 Feb 2007 15:29:58 -0800 From: "H. Peter Anvin" User-Agent: Thunderbird 1.5.0.9 (X11/20061219) MIME-Version: 1.0 To: Sam Ravnborg CC: Andreas Gruenbacher , Nathan Scott , Adrian Bunk , linux-kernel@vger.kernel.org, James Morris , David Woodhouse Subject: Re: include/linux/xattr.h: how much userpace visible? References: <20060723184343.GA25367@stusta.de> <20060724085701.B2083275@wobbly.melbourne.sgi.com> <200607242031.11815.a.gruenbacher@computer.org> <20060724184534.GA26842@mars.ravnborg.org> In-Reply-To: <20060724184534.GA26842@mars.ravnborg.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 Sam Ravnborg wrote: > The userspace headers are supposed to hold the part of the kernel > definitions that glibc (and mayby the attr package) uses. If they happen > to have their own copy now should not impct the decision what is part of > the userspace interface for the kernel. So actual usage does not decide > what is part of the userspace kernel headers but what definitionas are > definitions the userspace <-> kernel interface. glibc, or another libc. Basically, the kernel should be able to export the things that userspace needs to be able to correctly speak the ABI. -hpa