From: Michael Schnell <mschnell@lumino.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org,
Mike Frysinger <vapier.adi@gmail.com>,
Paul Mundt <lethal@linux-sh.org>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Ingo Molnar <mingo@elte.hu>, Jakub Jelinek <jakub@redhat.com>,
Thomas Chou <thomas@wytron.com.tw>
Subject: Re: implementing Futex
Date: Fri, 14 Aug 2009 14:56:05 +0200 [thread overview]
Message-ID: <4A855EE5.9010105@lumino.de> (raw)
In-Reply-To: <200908141438.01392.arnd@arndb.de>
Arnd Bergmann wrote:
> The man page says that the last parameter is ignored for op=FUTEX_WAKE,
> which is correct. The code that you were looking at however is for
> of=FUTEX_WAKE_OP, which is not documented as of manpages-3.22.
>
> It was added by Jakub back in 2005, but if he wrote a documentation
> for it, it never went into the man pages package. On a similar
> note, Ingo also added other futex operations that are not documented
> yet.
>
Thus in any documented software, the quite complex stuff in
"futex_atomic_op_inuser", which is provided in several different
"futex.h" files for all those architectures *never* is used ?
Weired !
Is there any viable use for this ?
Would it not be appropriate either to do a documentation or to remove it ?
-Michael
next prev parent reply other threads:[~2009-08-14 12:56 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-13 15:03 implementing Futex Michael Schnell
2009-08-13 16:39 ` Arnd Bergmann
2009-08-13 17:28 ` Arnd Bergmann
2009-08-14 9:46 ` Michael Schnell
2009-08-14 11:44 ` Arnd Bergmann
2009-08-17 8:57 ` Mike Frysinger
2009-08-14 9:48 ` Michael Schnell
[not found] ` <4A8525A1.205@lumino.de>
[not found] ` <200908141128.01179.arnd@arndb.de>
2009-08-14 10:03 ` Michael Schnell
2009-08-14 10:11 ` Michael Schnell
2009-08-14 11:55 ` Michael Schnell
2009-08-14 12:38 ` Arnd Bergmann
2009-08-14 12:56 ` Michael Schnell [this message]
2009-08-14 13:33 ` Arnd Bergmann
2009-08-31 16:30 ` Darren Hart
2009-08-17 8:50 ` Michael Schnell
2009-08-17 11:53 ` [Nios2-dev] " Michael Schnell
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