Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1753624AbdHXTZ4 (ORCPT <rfc822;w@1wt.eu>);
        Thu, 24 Aug 2017 15:25:56 -0400
Received: from mail-oi0-f67.google.com ([209.85.218.67]:34724 "EHLO
        mail-oi0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1752842AbdHXTZz (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 24 Aug 2017 15:25:55 -0400
MIME-Version: 1.0
In-Reply-To: <CA+55aFwKth0Dy+KgWdo3zaq4ur3_Sj5hgAPrvcZLo1BaQwZk=w@mail.gmail.com>
References: <20170816171211.4021-1-christian.brauner@ubuntu.com>
 <CA+55aFzmcydKsuwXpocd0hYMrACEXt+UUuaqa7j3L5LG7SjajQ@mail.gmail.com>
 <CA+55aFxMnEQVq8zRG1JEsW+6x23qkBV=KKXksgVHmBegPuepMg@mail.gmail.com>
 <CA+55aFz+qGxM9MidcvQkP4er-qn0_oEqCac=ob64f+twhptSgQ@mail.gmail.com>
 <CA+55aFxXzwoDdN72m2oaV4XuxO0DGoT+Bp84i07VFpLQ3Ftcpw@mail.gmail.com>
 <87pobvruzt.fsf@xmission.com> <CA+55aFyJsxsxeW-8RX83AM2zs+_i8h85i99X+YkuFEqpqjtp4w@mail.gmail.com>
 <87ziazqdfr.fsf@xmission.com> <CA+55aFwssaZpapQdc2iVVmMt0KxTHYdeo71Xbp4Ex-pYP_MpMw@mail.gmail.com>
 <20170824022436.44adb497@mir> <CA+55aFzHa0vL2Yui05r6aSQM0-oHuUAjqi1kxheG_tFQRkUGYw@mail.gmail.com>
 <87378hhi3y.fsf@xmission.com> <CA+55aFxhg8=KMZDtF-TrVjb3fPNvSWUveuRy1HHGuWXQ3+YzwQ@mail.gmail.com>
 <CA+55aFw737C9OVC2nQgGcazhi7Ca2K-frzgN2MiD=XqqFAp8YA@mail.gmail.com>
 <CA+55aFwvwtFCH2THn1LirOpMsZ57pnNi61nXQfQ6NBgakdXpTQ@mail.gmail.com>
 <87wp5tfynr.fsf@xmission.com> <20170824062432.1e05e6f8@mir>
 <874lsxezal.fsf@xmission.com> <CA+55aFz62HAC=v0=wVDPwdSPRXAnPGoAec1o==22AqrQchUzUQ@mail.gmail.com>
 <CA+55aFyO-70cz3ByOmD3zWByy+1x20VK5UajLa1p_-Gi8Y1nQg@mail.gmail.com>
 <CA+55aFxiDZAcFvngiNGUT=o78i1SWZ-tSHDYV4TKebiixiD6Pg@mail.gmail.com>
 <87y3q8ermg.fsf@xmission.com> <CAPP7u0WHqDfxTW6hmc=DsmHuoALZcrWdU-Odu=FfoTX26SGHQg@mail.gmail.com>
 <CA+55aFwKth0Dy+KgWdo3zaq4ur3_Sj5hgAPrvcZLo1BaQwZk=w@mail.gmail.com>
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 24 Aug 2017 12:25:54 -0700
X-Google-Sender-Auth: ukZJ0r_hyIPxHFVgUKx23tKC1ls
Message-ID: <CA+55aFybGbv+hQC5bv3NvpSXmgQg2RfX9rdYR4OFmJ9NWz4WMQ@mail.gmail.com>
Subject: Re: [PATCH 0/1] devpts: use dynamic_dname() to generate proc name
To: Christian Brauner <christian.brauner@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
        Al Viro <viro@zeniv.linux.org.uk>, Serge Hallyn <serge@hallyn.com>,
        Stefan Lippers-Hollmann <s.l-h@gmx.de>,
        Christian Brauner <christian.brauner@ubuntu.com>,
        Thorsten Leemhuis <regressions@leemhuis.info>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 619
Lines: 19

On Thu, Aug 24, 2017 at 12:22 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>   [root@i7 dummy]# ../a.out
>   I point to "/home/torvalds/dummy/pts/0"

Note: that "a.out" binary is modified from  your original code.

It's modified to correctly print out the readdir() results, but it's
also modified to open just "ptmx" for the above trial (so it doesn't
open /dev/ptmx, it's opening that ptmx node in the current directory,
which is why it then reports that

   I point to "/home/torvalds/dummy/pts/0"

thing.

So it's not your *original* test-program, it's slightly tweaked for this test.

          Linus