linux-kernel - Re: [RFC PATCH] PM, freezer: Don't thaw when it's intended frozen processes

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Message-ID: <CAH9JG2WffvJCB7v1peL3vWbJoJwZH=h8g-o0TmkmfUpsgVci0A@mail.gmail.com>
Date:	Wed, 13 May 2015 09:42:47 +0900
From:	Kyungmin Park <kmpark@...radead.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"\\Rafael J. Wysocki\\" <rjw@...ysocki.net>,
	David Rientjes <rientjes@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Cong Wang <xiyou.wangcong@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [RFC PATCH] PM, freezer: Don't thaw when it's intended frozen processes

On Tue, May 12, 2015 at 11:43 PM, Tejun Heo <tj@...nel.org> wrote:
> Hello,
>
> On Mon, May 11, 2015 at 04:47:14PM +0900, Kyungmin Park wrote:
>> > The kernel 3.10 is not working as expected, but right the latest
>> > kernel is working correctly.
>>
>> Please ignore it. test is wrong and it's not working, see Krzysztof Mail.
>
> So, I just tested and it does work as expected.  What Krzysztof said
> is the same thing that I said in the first reply.  The tasks will be
> woken up but won't leave freezer.  Please re-test.

Right, it's still in freezer, just one time scheduling is happened.
and enter freeze state again.

do you think can we avoid it or it's sub-optimal to do as patch?

Thank you,
Kyungmin Park
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