From: William Lee Irwin III <wli@holomorphy.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Martin Wirth <martin.wirth@dlr.de>,
linux-kernel@vger.kernel.org, rusty@rustcorp.com.au
Subject: Re: [patch] futex requeueing feature, futex-requeue-2.5.69-D3
Date: Thu, 22 May 2003 05:04:24 -0700 [thread overview]
Message-ID: <20030522120424.GP8978@holomorphy.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0305221328130.6965-100000@localhost.localdomain>
On Thu, May 22, 2003 at 01:34:42PM +0200, Ingo Molnar wrote:
> there's a patch in the works to change futex hashing to not require page
> pinning, without making futexes process-local. This should also fix the
> FUTEX_FD problems.
> basically the idea is that struct page remains to be a good hash whenever
> the page is present, and the swapout pte value is a good hash key when the
> page is swapped out. So we basically can make futexes swappable.
> this gets rid of pinned pages and pagetable locking, without the need for
> API-level changes.
Someone's already doing it? I'll back off if so.
-- wli
next prev parent reply other threads:[~2003-05-22 11:51 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-22 11:23 [patch] futex requeueing feature, futex-requeue-2.5.69-D3 Martin Wirth
2003-05-22 11:34 ` Ingo Molnar
2003-05-22 12:04 ` William Lee Irwin III [this message]
[not found] <3ECCB319.4060706@dlr.de.suse.lists.linux.kernel>
2003-05-22 11:38 ` Andi Kleen
[not found] <3ECAC2AE.8090401@redhat.com>
2003-05-21 2:34 ` Rusty Russell
2003-05-21 9:48 ` Ingo Molnar
2003-05-21 10:24 ` Christoph Hellwig
2003-05-22 0:30 ` Rusty Russell
2003-05-22 9:15 ` Ingo Molnar
2003-05-22 10:35 ` Rusty Russell
-- strict thread matches above, loose matches on Subject: below --
2003-05-19 9:31 Ingo Molnar
2003-05-19 10:10 ` Christoph Hellwig
2003-05-19 10:16 ` Ingo Molnar
2003-05-19 11:49 ` Christoph Hellwig
2003-05-20 0:08 ` Rusty Russell
2003-05-20 0:31 ` Valdis.Kletnieks
2003-05-19 10:23 ` Andrew Morton
2003-05-20 0:04 ` Rusty Russell
2003-05-20 0:40 ` Ulrich Drepper
2003-05-20 1:46 ` Rusty Russell
2003-05-20 2:11 ` Ulrich Drepper
2003-05-20 6:27 ` Ingo Molnar
2003-05-20 6:56 ` Christoph Hellwig
2003-05-20 8:57 ` Rusty Russell
2003-05-20 9:03 ` Ingo Molnar
2003-05-20 9:51 ` Christoph Hellwig
2003-05-20 15:46 ` Linus Torvalds
2003-05-20 9:12 ` Ingo Oeser
2003-05-20 15:41 ` Linus Torvalds
2003-05-20 8:55 ` Rusty Russell
2003-05-20 6:19 ` Ingo Molnar
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