From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756183Ab2DHWqN (ORCPT ); Sun, 8 Apr 2012 18:46:13 -0400 Received: from terminus.zytor.com ([198.137.202.10]:60841 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755980Ab2DHWqM (ORCPT ); Sun, 8 Apr 2012 18:46:12 -0400 Message-ID: <4F821524.9090702@zytor.com> Date: Sun, 08 Apr 2012 15:45:56 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1 MIME-Version: 1.0 To: Alan Cox CC: Konstantin Khlebnikov , Linux Kernel Mailing List , Al Viro , Greg Kroah-Hartman , Kay Sievers , Sukadev Bhattiprolu Subject: Re: RFC: deprecating/removing the legacy mode of devpts References: <4F80892A.7050104@zytor.com> <4F81D5C4.9000503@openvz.org> <20120408231841.42e28867@pyramind.ukuu.org.uk> <4F8210A5.7000900@zytor.com> <20120408234641.788f8426@pyramind.ukuu.org.uk> In-Reply-To: <20120408234641.788f8426@pyramind.ukuu.org.uk> X-Enigmail-Version: 1.4 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/08/2012 03:46 PM, Alan Cox wrote: >> What if it turns out we can make udev/devtmpfs make this happen >> transparently (which it sounds like it might be possible)? Would you be >> okay with removing the "implicit bind mount" property of the current >> devpts then? > > Once we get to the point where it "just works" I'm quite happy for that > to happen unless it turns out there's any large code size/performance > hits in having the feature always on. I don't see any. > No, it's actually the other way around... it lets us take some pretty nice shortcuts. -hpa