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From: Darren Hart <dvhltc-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Michael Kerrisk
	<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
	Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>,
	Eric Dumazet
	<eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Dinakar Guniguntala
	<dino-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org>,
	John Stultz <johnstul-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
	John Kacur <jkacur-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Futex manpages out of date
Date: Fri, 15 Jan 2010 08:58:09 -0800	[thread overview]
Message-ID: <4B509EA1.8060509@us.ibm.com> (raw)

The futex man-pages (2,7) from version 3.15-1 and at least a few earlier
versions are considerably out of date with respect to the current
implementation. They don't document newer op codes, such as:

FUTEX_WAIT_BITSET
FUTEX_WAKE_BITSET
FUTEX_WAKE_OP
FUTEX_LOCK_PI
FUTEX_UNLOCK_PI
FUTEX_WAIT_REQUEUE_PI
FUTEX_CMP_REQUEUE_PI

These new wait op codes now use absolute timeouts, while the original
FUTEX_WAIT uses a relative timeout. Lastly, and most importantly, glibc
has removed the futex() wrapper to syscall(SYS_futex, ...). With that in
mind, would people prefer that we simply remove the futex man-pages
(2,7)?

Thanks,

-- 
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team
--
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             reply	other threads:[~2010-01-15 16:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-15 16:58 Darren Hart [this message]
     [not found] ` <4B509EA1.8060509-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2010-01-15 17:11   ` Futex manpages out of date Peter Zijlstra
2010-01-15 17:13     ` Darren Hart
     [not found]       ` <4B50A228.8070401-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2010-01-15 17:14         ` Peter Zijlstra
2010-01-18 16:40     ` Petr Baudis
     [not found]       ` <20100118164000.GK2249-DDGJ70k9y3lX+M3pkMnKjw@public.gmane.org>
2010-01-18 16:51         ` Darren Hart
2010-01-18 17:03         ` Peter Zijlstra
2010-01-18 17:23           ` Darren Hart

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