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Date: Fri, 17 Oct 2014 17:31:55 +0200
From: Oleg Nesterov <oleg@redhat.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: Cong Wang <xiyou.wangcong@gmail.com>, David Rientjes <rientjes@google.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>, Tejun Heo <tj@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org
Subject: Re: + freezer-check-oom-kill-while-being-frozen.patch added to -mm
	tree
Message-ID: <20141017153155.GB7227@redhat.com>
References: <20141016203954.GA26336@redhat.com> <20141017065947.GA8076@dhcp22.suse.cz>
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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.