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Date:   Fri, 29 May 2020 17:13:46 +0200
From:   Christian Brauner <christian.brauner@ubuntu.com>
To:     Adrian Reber <areber@redhat.com>
Cc:     "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>,
        Eric Biederman <ebiederm@xmission.com>,
        Pavel Emelyanov <ovzxemul@gmail.com>,
        Oleg Nesterov <oleg@redhat.com>,
        Dmitry Safonov <0x7f454c46@gmail.com>,
        Andrei Vagin <avagin@gmail.com>,
        lkml <linux-kernel@vger.kernel.org>,
        Mike Rapoport <rppt@linux.ibm.com>,
        Radostin Stoyanov <rstoyanov1@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Cyrill Gorcunov <gorcunov@openvz.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: clone3: allow creation of time namespace with offset
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On Fri, May 29, 2020 at 05:10:29PM +0200, Adrian Reber wrote:
> On Fri, May 29, 2020 at 02:26:13PM +0200, Michael Kerrisk (man-pages) wrote:
> > Hi Adrian,
> > 
> > If there was a revision to this patch, I missed it. Is there still a
> > plan to bring CLONE_NEWTIME to clone3()?
> 
> Good that you ask. The discussion ended at the point that we do not have
> a way to figure out what a syscall supports from user-space.  I talked a
> bit with Christian about it and he mentioned that there were some ideas
> floating around how to do that. At that point it made more sense to me
> to wait for such a solution to appear before continuing the clone3()
> time namespace work.

We need to have a little talk at ksummit about some aspects of syscall
design. I'm writing something up for this. But we're not in a rush
anyway, I take it.

Christian