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

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Message-ID: <20141017160645.GG8076@dhcp22.suse.cz>
Date:	Fri, 17 Oct 2014 18:06:46 +0200
From:	Michal Hocko <mhocko@...e.cz>
To:	Oleg Nesterov <oleg@...hat.com>
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 Fri 17-10-14 17:31:55, Oleg Nesterov wrote:
> 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.

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

-- 
Michal Hocko
SUSE Labs
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