linux-kernel - Re: + freezer-check-oom-kill-while-being-frozen.patch added to -mm tree

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Message-ID: <20141017153155.GB7227@redhat.com>
Date:	Fri, 17 Oct 2014 17:31:55 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	Cong Wang <xiyou.wangcong@...il.com>,
	David Rientjes <rientjes@...gle.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: + freezer-check-oom-kill-while-being-frozen.patch added to -mm
	tree

On 10/17, Michal Hocko wrote:
>
> Can we simply make the task sleep interruptible?

No, this will turn __refrigerator() into the busy-wait loop if
signal_pending() == T.


(but I still think it makes sense to kill PF_FROZEN and introduce
 TASK_FROZEN state, however this is offtopic).

Oleg.

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