linux-kernel - Re: /proc dcache deadlock in do

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Date:	Tue, 27 Nov 2007 19:09:58 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andrea Arcangeli <andrea@...e.de>, linux-kernel@...r.kernel.org,
	jack@...e.cz, Ingo Molnar <mingo@...e.hu>,
	Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: /proc dcache deadlock in do_exit


Nacked-by: "Eric W. Biederman" <ebiederm@...ssion.com>

Andrew Morton <akpm@...ux-foundation.org> writes:

> I don't see why the schedule() will not return?  Because the task has
> PF_EXITING set?  Doesn't TASK_DEAD do that?

This appears to be a work around for an old bug only present in sles9.

It looks like it has been safe to schedule in release task for years
in mainline, and that is simply much more robust.

Eric
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