From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1751211AbcFXJyO (ORCPT <rfc822;w@1wt.eu>);
	Fri, 24 Jun 2016 05:54:14 -0400
Received: from www.linutronix.de ([62.245.132.108]:51739 "EHLO
	Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1750853AbcFXJyN (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Fri, 24 Jun 2016 05:54:13 -0400
Date: Fri, 24 Jun 2016 11:52:07 +0200 (CEST)
From: Thomas Gleixner <tglx@linutronix.de>
To: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
cc: Darren Hart <dvhart@infradead.org>,
        Matthieu CASTET <matthieu.castet@parrot.com>,
        linux-kernel@vger.kernel.org, Darren Hart <dvhart@linux.intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Davidlohr Bueso <dave@stgolabs.net>,
        Eric Dumazet <dada1@cosmosbay.com>
Subject: Re: futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op
In-Reply-To: <d8bcb621-012e-f34c-4cf9-2d09aa23a43c@gmail.com>
Message-ID: <alpine.DEB.2.11.1606241151500.5839@nanos>
References: <20160620162652.2c4619c3@perruche.parrot.biz> <20160623044828.GA3379@f23x64.localdomain> <alpine.DEB.2.11.1606230913570.5839@nanos> <520d203a-83ad-0277-79d5-2209d6853628@gmail.com> <alpine.DEB.2.11.1606231534310.5839@nanos>
 <20160623161643.GA106079@f23x64.localdomain> <alpine.DEB.2.11.1606231925420.5839@nanos> <20160623182821.GB106079@f23x64.localdomain> <f1dab560-41bb-9cc4-438f-0ade82c685fd@gmail.com> <20160623195515.GD106079@f23x64.localdomain> <20160623203144.GE106079@f23x64.localdomain>
 <d8bcb621-012e-f34c-4cf9-2d09aa23a43c@gmail.com>
User-Agent: Alpine 2.11 (DEB 23 2013-08-11)
MIME-Version: 1.0
Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-1684984373-1466761928=:5839"
X-Linutronix-Spam-Score: -1.0
X-Linutronix-Spam-Level: -
X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required,  ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

--8323329-1684984373-1466761928=:5839
Content-Type: TEXT/PLAIN; charset=UTF-8
Content-Transfer-Encoding: 8BIT

On Fri, 24 Jun 2016, Michael Kerrisk (man-pages) wrote:
> By the way, I just realized something that wasn't initially obvious
> to me, and documented it in the futex(2) man page:
> 
>               Note:  for  FUTEX_WAIT,  timeout is interpreted as a
>               relative value.  This differs from other futex oper‐
>               ations,  where timeout is interpreted as an absolute
>               value.  To obtain the equivalent of FUTEX_WAIT  with
>               an  absolute  timeout, employ FUTEX_WAIT_BITSET with
>               val3 specified as FUTEX_BITSET_MATCH_ANY.
> 
> Okay?

Yes.
--8323329-1684984373-1466761928=:5839--