From: Jakub Jelinek <jakub@redhat.com>
To: Andrew Morton <akpm@osdl.org>
Cc: arnd@arndb.de, drepper@redhat.com, linux-kernel@vger.kernel.org,
mingo@redhat.com, schwidefsky@de.ibm.com,
bert hubert <ahu@ds9a.nl>
Subject: Re: [PATCH] Add FUTEX_CMP_REQUEUE futex op
Date: Mon, 24 May 2004 04:19:58 -0400 [thread overview]
Message-ID: <20040524081958.GD4736@devserv.devel.redhat.com> (raw)
In-Reply-To: <20040524011203.3be81d0a.akpm@osdl.org>
On Mon, May 24, 2004 at 01:12:03AM -0700, Andrew Morton wrote:
> Jakub Jelinek <jakub@redhat.com> wrote:
> >
> > That said, NPTL can deal with any of these variants and the decision
> > is up to Martin I think (assuming the base patch gets accepted, that is).
>
> Well the race is real and does need a kernel fix, so I queued it up. I
> guess if the new argument to sys_futex() breaks some architecture they can
> independently add a new syscall for it, or send a fix. Mutter.
>
> It's a bit of a shame that you need to be a rocket scientist to
> understand the futex syscall interface. Bert, are you still maintaining
> the manpage? If so, is there enough info here to update it?
The latest futex(2) or futex(4) manpage I saw doesn't mention FUTEX_REQUEUE
at all.
Also, any futex man page should probably SEE ALSO Ulrich's futex paper:
http://people.redhat.com/drepper/futex.pdf
which helps understanding how to successfully use futexes, because
it is certainly not trivial.
Jakub
next prev parent reply other threads:[~2004-05-24 8:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-20 9:38 [PATCH] Add FUTEX_CMP_REQUEUE futex op Jakub Jelinek
2004-05-20 22:52 ` Andrew Morton
2004-05-21 6:06 ` Ulrich Drepper
2004-05-21 6:36 ` Andrew Morton
2004-05-21 7:15 ` Ulrich Drepper
2004-05-21 7:43 ` Jakub Jelinek
2004-05-22 16:58 ` Arnd Bergmann
2004-05-24 7:34 ` Jakub Jelinek
2004-05-24 8:12 ` Andrew Morton
2004-05-24 8:19 ` Jakub Jelinek [this message]
2004-05-28 13:09 ` DOCUMENTATION " bert hubert
2004-05-28 14:02 ` Jakub Jelinek
2004-05-28 15:39 ` bert hubert
2004-05-24 8:27 ` bert hubert
2004-05-24 17:34 ` Arnd Bergmann
2004-05-21 7:05 ` Ingo Molnar
2004-05-21 23:05 ` Andrew Morton
2004-05-22 10:10 ` Ingo Oeser
2004-05-23 17:33 ` Jakub Jelinek
2004-05-29 3:13 ` Rusty Russell
-- strict thread matches above, loose matches on Subject: below --
2004-06-07 16:03 Martin Schwidefsky
[not found] <mailman.1086629984.12568.linux-kernel2news@redhat.com>
2004-06-09 20:04 ` Pete Zaitcev
2004-06-09 22:08 ` Arnd Bergmann
2004-06-11 8:35 ` Martin Schwidefsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040524081958.GD4736@devserv.devel.redhat.com \
--to=jakub@redhat.com \
--cc=ahu@ds9a.nl \
--cc=akpm@osdl.org \
--cc=arnd@arndb.de \
--cc=drepper@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=schwidefsky@de.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox