From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756755AbZHNM4J (ORCPT ); Fri, 14 Aug 2009 08:56:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756724AbZHNM4I (ORCPT ); Fri, 14 Aug 2009 08:56:08 -0400 Received: from www.lumino.de ([85.159.12.10]:49861 "HELO imap.lumino.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756716AbZHNM4I (ORCPT ); Fri, 14 Aug 2009 08:56:08 -0400 Message-ID: <4A855EE5.9010105@lumino.de> Date: Fri, 14 Aug 2009 14:56:05 +0200 From: Michael Schnell User-Agent: Thunderbird 2.0.0.22 (X11/20090605) MIME-Version: 1.0 To: Arnd Bergmann CC: linux-kernel@vger.kernel.org, Mike Frysinger , Paul Mundt , Michael Kerrisk , Ingo Molnar , Jakub Jelinek , Thomas Chou Subject: Re: implementing Futex References: <4A842B32.5030401@lumino.de> <200908131839.41803.arnd@arndb.de> <4A8550CF.8000003@lumino.de> <200908141438.01392.arnd@arndb.de> In-Reply-To: <200908141438.01392.arnd@arndb.de> X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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