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From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: dvhart@linux.intel.com
Cc: peterz@infradead.org, eric.dumazet@gmail.com,
	david@rgmadvisors.com, linux-kernel@vger.kernel.org,
	sbohrer@rgmadvisors.com, zvonler@rgmadvisors.com,
	hughd@google.com, tglx@linutronix.de, mingo@elte.hu
Subject: Re: Change in functionality of futex() system call.
Date: Mon, 13 Jun 2011 11:11:18 +0900	[thread overview]
Message-ID: <4DF571C6.9040409@jp.fujitsu.com> (raw)
In-Reply-To: <4DF25463.3080508@linux.intel.com>

>> Off topic: current futex documentations are near terribly unclear and
>> many futex op are completely undocumented. They are one of root cause
>> that every change can make compatibility issue. (;_;
> 
> What documentation are you referring to? The futex man page is a wreck,
> and I'm not sure what to do with it since glibc removed the futex()
> call. You now have to wrap the syscall manually anyway.

Honestly, I don't know linux man pages policy at all. example, gettid(2)
also need to be wrap syscall manually. and it's documented and NOTES section
describe "Glibc does not provide a wrapper for this system call; call it
using syscall(2)".

Or, if nobody want to update the doc, shouldn't we just remove futex(2) man
pages? out date docs are often wrong than nothing. I dunno.


> If you are referring to the futex.c file itself, I have been documenting
> functions as I modify them. If you found any of those lacking, please
> let me know which ones and I'll try to clean them up. If you're
> referring to those that remain undocumented, please send a doc patch and
> I'll review and help get it upstream. I'd like to see this improved as well.

No. I think the comments of futex.c are very good, at least, than a lot of mm code. ;)



  reply	other threads:[~2011-06-13  2:11 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-06 14:28 Change in functionality of futex() system call David Oliver
2011-06-06 15:23 ` Eric Dumazet
2011-06-06 15:56   ` Shawn Bohrer
2011-06-06 16:11   ` Peter Zijlstra
2011-06-06 16:16     ` Peter Zijlstra
2011-06-06 16:22       ` Eric Dumazet
2011-06-06 16:29         ` Peter Zijlstra
2011-06-06 16:42           ` Eric Dumazet
2011-06-06 17:05             ` Peter Zijlstra
2011-06-06 17:11               ` Eric Dumazet
2011-06-06 17:27                 ` Steven Rostedt
2011-06-06 17:56                   ` Darren Hart
2011-06-06 18:23                 ` Peter Zijlstra
2011-06-06 18:27                   ` Eric Dumazet
2011-06-25  0:00                     ` Darren Hart
2011-06-27 16:48                     ` Shawn Bohrer
2011-06-06 17:53             ` Darren Hart
2011-06-06 18:11               ` Eric Dumazet
2011-06-07  3:13                 ` Darren Hart
2011-06-07  3:49                   ` Eric Dumazet
2011-06-07 14:44                   ` Andy Lutomirski
2011-06-07 15:56                     ` Darren Hart
2011-06-07 15:58                     ` Eric Dumazet
2011-06-07 18:43                       ` Andrew Lutomirski
2011-06-07 19:01                         ` Darren Hart
2011-06-07 19:04                           ` Andrew Lutomirski
2011-06-07 19:06                         ` Eric Dumazet
2011-06-07 19:10                         ` David Oliver
2011-06-07 19:19                           ` Andrew Lutomirski
2011-06-07 19:33                             ` David Oliver
2011-06-07 19:53                               ` Andrew Lutomirski
2011-06-07 20:04                                 ` David Oliver
2011-06-07 20:12                                   ` Andrew Lutomirski
2011-06-07 22:26                             ` Kyle Moffett
2011-06-08 15:20                               ` David Oliver
2011-06-08 15:21                                 ` Andrew Lutomirski
2011-06-08 16:21                                 ` Darren Hart
2011-06-09 11:37                                   ` KOSAKI Motohiro
2011-06-09 12:05                                     ` Peter Zijlstra
2011-06-09 17:58                                       ` Peter Zijlstra
2011-06-10  3:30                                         ` KOSAKI Motohiro
2011-06-10  3:26                                       ` KOSAKI Motohiro
2011-06-07 18:30                 ` Joel Becker
2011-06-09 12:05                 ` Peter Zijlstra
2011-06-10 12:10       ` KOSAKI Motohiro
2011-06-10 17:29         ` Darren Hart
2011-06-13  2:11           ` KOSAKI Motohiro [this message]
2011-06-13 15:50             ` Darren Hart
2011-06-15 18:50         ` Shawn Bohrer
2011-06-15 18:54           ` Darren Hart
2011-06-17 13:40             ` Shawn Bohrer
2011-06-22 19:19             ` [PATCH RFC] futex: Fix regression with read only mappings Shawn Bohrer
2011-06-22 20:14               ` Darren Hart
2011-06-23  2:51                 ` KOSAKI Motohiro
2011-06-23 15:26                   ` Darren Hart
2011-06-23 19:49                     ` Shawn Bohrer
2011-06-24 15:59                       ` [PATCH v2] " Shawn Bohrer
2011-06-25  0:37                         ` Darren Hart
2011-06-25 15:10                           ` KOSAKI Motohiro
2011-06-27 16:40                           ` Shawn Bohrer
2011-06-27 18:15                             ` Peter Zijlstra
2011-06-27 20:41                               ` Darren Hart
2011-06-27 21:08                                 ` Shawn Bohrer
2011-06-27 21:39                                   ` Darren Hart
2011-06-27 22:14                                     ` Shawn Bohrer
2011-06-27 23:17                                       ` Darren Hart
2011-06-27 22:22                                     ` [PATCH v3] " Shawn Bohrer
2011-06-28 10:54                                       ` Peter Zijlstra
2011-06-28 14:52                                         ` Darren Hart
2011-06-28 17:38                                           ` Shawn Bohrer
2011-06-28 20:58                                             ` Darren Hart
2011-06-28 23:55                                             ` Darren Hart
2011-06-29 14:56                                               ` Shawn Bohrer
2011-06-29 15:17                                               ` [PATCH v4] " Shawn Bohrer
2011-06-29 18:41                                                 ` Darren Hart
2011-06-29 23:38                                                 ` Thomas Gleixner
2011-06-30  4:19                                                   ` Darren Hart
2011-06-30 14:02                                                     ` David C. Oliver
2011-06-30 15:41                                                       ` Darren Hart
2011-06-30 16:21                                                         ` [PATCH v5] " Shawn Bohrer
2011-07-12 15:27                                                           ` Shawn Bohrer
2011-07-25 15:20                                                           ` Shawn Bohrer
2011-07-25 19:28                                                             ` Thomas Gleixner
2011-07-26 19:04                                                           ` [tip:core/urgent] " tip-bot for Shawn Bohrer
2011-06-28 10:50                                     ` [PATCH v2] " Peter Zijlstra
2011-06-28 14:19                                       ` Darren Hart
2011-06-28 14:23                                         ` Peter Zijlstra
2011-06-23  3:58                 ` [PATCH RFC] " Shawn Bohrer
2011-06-23  3:23             ` Change in functionality of futex() system call KOSAKI Motohiro
  -- strict thread matches above, loose matches on Subject: below --
2011-06-09  0:44 George Spelvin
2011-06-09  3:02 ` Darren Hart
2011-06-09  3:38   ` Andrew Lutomirski
2011-06-09  3:54     ` Eric Dumazet
2011-06-09  4:10       ` Andrew Lutomirski
2011-06-09  5:11         ` Eric Dumazet
2011-06-09 12:12           ` Andrew Lutomirski
2011-06-09  4:43       ` George Spelvin
2011-06-09  5:25         ` Eric Dumazet
2011-06-09  4:44       ` Kyle Moffett

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