linux-kernel - Re: [PATCH 0/3] s/PF_BORROWED_MM/PF

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Message-Id: <20080603215543.3230026FC96@magilla.localdomain>
Date:	Tue,  3 Jun 2008 14:55:43 -0700 (PDT)
From:	Roland McGrath <roland@...hat.com>
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] s/PF_BORROWED_MM/PF_KTHREAD/

I like all three of these changes.  The 1/3 and 2/3 together constitute a
fix for the coredump vs aio race that is nice and clean.  The 2/2 is all
cleanup or possibly fixes more arcane cases we haven't enumerated yet.  
(I would have made that the last patch of the three.)  It merits some
follow-up looking at all (!task->mm) sorts of tests and making them use
a helper for what they really mean to express (e.g. is_kernel_thread()
if that's what they intend).

Thanks,
Roland
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