From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757892AbYHATX5 (ORCPT ); Fri, 1 Aug 2008 15:23:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752542AbYHATXt (ORCPT ); Fri, 1 Aug 2008 15:23:49 -0400 Received: from e34.co.us.ibm.com ([32.97.110.152]:39880 "EHLO e34.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752106AbYHATXs (ORCPT ); Fri, 1 Aug 2008 15:23:48 -0400 Subject: Re: Per-instance devpts From: Dave Hansen To: "H. Peter Anvin" Cc: "Eric W. Biederman" , Greg KH , linux-kernel@vger.kernel.org, Containers , Alan Cox , Pavel Emelyanov In-Reply-To: <48935205.3090807@zytor.com> References: <20080412172933.GA19295@us.ibm.com> <1208027215.28187.17.camel@x61.ebiederm.org> <48935205.3090807@zytor.com> Content-Type: text/plain Date: Fri, 01 Aug 2008 12:23:44 -0700 Message-Id: <1217618624.20260.50.camel@nimitz> Mime-Version: 1.0 X-Mailer: Evolution 2.22.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2008-08-01 at 11:12 -0700, H. Peter Anvin wrote: > 1. /dev/ptmx would have to change to a symlink, ptmx -> pts/ptmx. ... > I worry #1 would have substantial user-space impact, but I don't see a > way around it, since there would be no obvious way to associate > /dev/ptmx with a filesystem. Are your worries just about replacing what is now a normal file with a symlink, and the behavioral changes that come with that? I wonder if using a bind mount for the file would be more robust. We wouldn't, of course, be able to do it persistently, but I bet it would be something we could count on udev to do for us. -- Dave