From: Ingo Molnar <mingo@elte.hu>
To: Andrew Morton <akpm@osdl.org>
Cc: torvalds@osdl.org, hch@infradead.org, drepper@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: sched_setaffinity usability
Date: Thu, 18 Mar 2004 19:39:44 +0100 [thread overview]
Message-ID: <20040318183944.GA3710@elte.hu> (raw)
In-Reply-To: <20040318103352.1a65126a.akpm@osdl.org>
* Andrew Morton <akpm@osdl.org> wrote:
> > Right now the VDSO mostly contains code and exception-handling data, but
> > it could contain real, userspace-visible data just as much: info that is
> > only known during the kernel build. There's basically no cost in adding
> > more fields to the VDSO, and it seems to be superior to any of the other
> > approaches. Is there any reason not to do it?
>
> It's x86-specific?
x86-64 has a VDSO page as well, and it can be implemented on any
architecture that wants to accelerate syscalls in user-space (and/or
wants to provide alternate methods of system-entry).
and a non-existent VDSO is something glibc handles already.
Ingo
next prev parent reply other threads:[~2004-03-18 18:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-18 8:05 sched_setaffinity usability Ulrich Drepper
2004-03-18 8:12 ` Tim Hockin
2004-03-18 8:22 ` Ulrich Drepper
2004-03-18 8:47 ` Ulrich Drepper
2004-03-18 9:45 ` Andrew Morton
2004-03-18 10:10 ` Andrew Morton
2004-03-18 11:29 ` Ingo Molnar
2004-03-18 12:07 ` Christoph Hellwig
2004-03-18 12:31 ` Ingo Molnar
2004-03-19 8:05 ` Ulrich Drepper
2004-03-18 15:55 ` Linus Torvalds
2004-03-18 18:24 ` Ingo Molnar
2004-03-18 18:33 ` Andrew Morton
2004-03-18 18:39 ` Ingo Molnar [this message]
2004-03-18 18:55 ` Ingo Molnar
2004-03-18 20:01 ` Andrea Arcangeli
2004-03-18 20:28 ` Ingo Molnar
2004-03-18 20:49 ` David Lang
2004-03-18 20:57 ` Randy.Dunlap
2004-03-18 21:06 ` Ingo Molnar
2004-03-18 21:07 ` Davide Libenzi
2004-03-18 21:46 ` Ingo Molnar
2004-03-19 1:37 ` Davide Libenzi
2004-03-19 9:02 ` Helge Hafting
2004-03-21 9:51 ` Ingo Molnar
2004-03-19 0:00 ` Paul Jackson
2004-03-18 17:47 ` sched_setaffinity usability -- other issue Chris Friesen
[not found] <1B0Ls-lY-27@gated-at.bofh.it>
[not found] ` <1B42z-3Lx-5@gated-at.bofh.it>
[not found] ` <1B4Fh-4sQ-3@gated-at.bofh.it>
[not found] ` <1B86P-8gq-69@gated-at.bofh.it>
[not found] ` <1Bars-2s6-29@gated-at.bofh.it>
[not found] ` <1BaKU-2Lg-49@gated-at.bofh.it>
[not found] ` <1BaKX-2Lg-61@gated-at.bofh.it>
[not found] ` <1BaUR-2V0-41@gated-at.bofh.it>
2004-03-18 21:23 ` sched_setaffinity usability Andi Kleen
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