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Date: Wed, 4 Aug 2010 14:54:12 +0200
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Subject: Re: [PATCH] [RFC] notify userspace about time changes
From: Bastien ROUCARIES <roucaries.bastien@gmail.com>
To: Alexander Shishkin <virtuoso@slind.org>
Cc: lkml@vger.kernel.org, "Kirill A. Shutemov" <kirill@shutemov.name>,
        Thomas Gleixner <tglx@linutronix.de>,
        John Stultz <johnstul@us.ibm.com>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Jon Hunter <jon-hunter@ti.com>, Ingo Molnar <mingo@elte.hu>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        David Howells <dhowells@redhat.com>, Avi Kivity <avi@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, John Kacur <jkacur@redhat.com>,
        linux-kernel@vger.kernel.org
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On Wed, Aug 4, 2010 at 2:48 PM, Alexander Shishkin <virtuoso@slind.org> wrote:
> Certain userspace applications (like "clock" desktop applets or ntpd) might
> want to be notified when some other application changes the system time. It
> might also be important for an application to be able to distinguish between
> its own and somebody else's time changes.

Why not implementing somtehing like http://lwn.net/Articles/323658/ a
la plan 9 with a poll callback ?

It will be plan9 compatible and so unix

Bastien
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