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Message-ID: <46F6B864.9080902@gmx.net>
Date:	Sun, 23 Sep 2007 21:03:00 +0200
From:	Michael Kerrisk <mtk-manpages@....net>
To:	Davide Libenzi <davidel@...ilserver.org>
CC:	Ulrich Drepper <drepper@...hat.com>, geoff@...are.org.uk,
	lkml <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Christoph Hellwig <hch@....de>,
	Jonathan Corbet <corbet@....net>,
	Randy Dunlap <rdunlap@...otime.net>, vda.linux@...glemail.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>, david@...deman.nu
Subject: Re: RFC: A revised timerfd API

Davide Libenzi wrote:
> On Sun, 23 Sep 2007, Davide Libenzi wrote:
> 
>> On Sun, 23 Sep 2007, Michael Kerrisk wrote:
>>
>>> I applied this patch against 2.6.27-rc7, and wired up the syscalls as shown
>>> in the definitions below.  When I ran the the program below, my system
>>> immediately froze.  Can you try it on your system please.
>> There's an hrtimer_init() missing in timerfd_create(). I'll refactor the 
>> patch.
> 
> There's the case of a timerfd_gettime return status when the timerfd has 
> not been set yet (ie, soon after a timerfd_create), to handle.
> Current way is to return an (itimerspec) { 0, 0 }. Ok?

Seems reasonable.  In the analogous situation, the POSIX timers API 
returns a structure containing all zeros, at least on Linux.
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