linux-kernel - Re: [PATCH 10/16] freezer: fix set_freezable[_with

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Message-ID: <20110829073828.GA18871@mtj.dyndns.org>
Date:	Mon, 29 Aug 2011 09:38:28 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	rjw@...k.pl, paul@...lmenage.org, linux-kernel@...r.kernel.org,
	arnd@...db.de
Subject: Re: [PATCH 10/16] freezer: fix set_freezable[_with_signal]() race

On Sun, Aug 28, 2011 at 08:01:06PM +0200, Oleg Nesterov wrote:
> You know, I was really, really puzzled by this change. Because it
> "obviously can fix nothing", and try_to_freeze() makes no sense
> (ignoring the very unlikely case when TIF_FREEZING was set right
> after we drop freezer_lock).
> 
> But I guess this works along with 14/16 which removes TIF_FREEZING.

Ah, yeah, another case of bad sequencing.  Sorry about that.

Thanks.

-- 
tejun
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