From: Andrea Arcangeli <andrea@suse.de>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@osdl.org>,
marcelo.tosatti@cyclades.com, LKML <linux-kernel@vger.kernel.org>,
nickpiggin@yahoo.com.au
Subject: Re: [PATCH] oom killer (Core)
Date: Fri, 10 Dec 2004 19:15:29 +0100 [thread overview]
Message-ID: <20041210181529.GZ16322@dualathlon.random> (raw)
In-Reply-To: <20041210180031.GT2714@holomorphy.com>
On Fri, Dec 10, 2004 at 10:00:31AM -0800, William Lee Irwin III wrote:
> Yet those don't appear in the tasklist, so some task in the tasklist
> has to get ->mm set to &init_mm. The notion above was that the init_mm
> check was to handle some out-of-tree attempt to do aio from kernel threads.
Not sure to understand correctly but, aio has always been done through
kernel threads, and that's the whole thing about aio. Not sure what
you're doing out-of-tree, but you don't need to use init_mm to deal with
kernel threads, infact kernel threads can only have ->mm = NULL. When
switching mm with use_mm the aio thread is only going to use a real mm
with mappings in userspace, so even in that case you don't need init_mm.
I didn't see the out of tree code though.
next prev parent reply other threads:[~2004-12-10 18:16 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-01 9:49 [PATCH] oom killer (Core) tglx
2004-12-01 21:16 ` Andrea Arcangeli
2004-12-01 22:06 ` Thomas Gleixner
2004-12-01 22:33 ` Andrea Arcangeli
2004-12-02 3:36 ` Andrea Arcangeli
2004-12-02 11:09 ` Thomas Gleixner
2004-12-02 13:48 ` Thomas Gleixner
2004-12-02 16:47 ` Andrea Arcangeli
2004-12-02 16:55 ` Andrew Morton
2004-12-02 11:18 ` Marcelo Tosatti
2004-12-02 17:17 ` Thomas Gleixner
2004-12-02 17:27 ` Andrew Morton
2004-12-02 18:08 ` Andrea Arcangeli
2004-12-02 18:29 ` Andrew Morton
2004-12-02 19:01 ` Thomas Gleixner
2004-12-02 18:55 ` Thomas Gleixner
2004-12-02 19:07 ` Andrew Morton
2004-12-02 19:08 ` Thomas Gleixner
2004-12-02 19:22 ` Andrew Morton
2004-12-02 19:24 ` Thomas Gleixner
2004-12-02 20:11 ` Andre Tomt
2004-12-03 22:45 ` Thomas Gleixner
2004-12-02 23:47 ` Andrea Arcangeli
2004-12-03 14:41 ` Helge Hafting
2004-12-03 21:20 ` Thomas Gleixner
2004-12-05 21:14 ` Helge Hafting
2004-12-02 23:35 ` Andrea Arcangeli
2004-12-03 2:28 ` Andrea Arcangeli
2004-12-03 22:37 ` Thomas Gleixner
2004-12-03 22:51 ` Thomas Gleixner
2004-12-03 23:08 ` Andrea Arcangeli
2004-12-10 16:36 ` William Lee Irwin III
2004-12-10 17:35 ` Andrea Arcangeli
2004-12-10 17:43 ` William Lee Irwin III
2004-12-10 17:55 ` Andrea Arcangeli
2004-12-10 18:00 ` William Lee Irwin III
2004-12-10 18:15 ` Andrea Arcangeli [this message]
2004-12-10 18:19 ` William Lee Irwin III
2004-12-10 19:05 ` Andrea Arcangeli
2004-12-10 16:51 ` William Lee Irwin III
2004-12-03 21:10 ` Thomas Gleixner
2004-12-03 22:21 ` Andrea Arcangeli
2004-12-05 2:52 ` William Lee Irwin III
2004-12-05 13:38 ` Thomas Gleixner
2004-12-05 15:22 ` Andrea Arcangeli
2004-12-10 16:32 ` William Lee Irwin III
2004-12-10 16:52 ` Thomas Gleixner
2004-12-10 17:43 ` William Lee Irwin III
2004-12-10 17:47 ` William Lee Irwin III
2004-12-10 17:49 ` Andrea Arcangeli
2004-12-10 17:57 ` William Lee Irwin III
2004-12-12 0:12 ` William Lee Irwin III
2004-12-24 1:18 ` Andrea Arcangeli
-- strict thread matches above, loose matches on Subject: below --
2004-12-01 10:21 tvrtko.ursulin
2004-12-04 7:00 Voluspa
2004-12-04 8:08 ` Andrea Arcangeli
2004-12-04 12:42 Voluspa
2004-12-04 16:43 ` Andrea Arcangeli
2004-12-04 18:33 ` Thomas Gleixner
2004-12-04 21:02 ` Thomas Gleixner
2004-12-05 0:27 ` Andrea Arcangeli
2004-12-05 14:55 ` Thomas Gleixner
2004-12-05 15:34 ` Andrea Arcangeli
2004-12-05 16:29 ` Thomas Gleixner
2004-12-05 2:22 Voluspa
2004-12-05 8:32 Voluspa
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