linux-kernel - Re: [PATCH] sched/fair: fix enqueue_task

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Message-ID: <73cc2b4b-9803-32ff-dc01-adbe4f8ba149@arm.com>
Date:   Fri, 6 Mar 2020 13:19:21 +0100
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Vincent Guittot <vincent.guittot@...aro.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        "# v4 . 16+" <stable@...r.kernel.org>
Subject: Re: [PATCH] sched/fair: fix enqueue_task_fair warning

On 06/03/2020 13:07, Vincent Guittot wrote:
> On Fri, 6 Mar 2020 at 10:12, Vincent Guittot <vincent.guittot@...aro.org> wrote:
>>
>> On Thu, 5 Mar 2020 at 20:07, Dietmar Eggemann <dietmar.eggemann@....com> wrote:
>>>
>>> On 05/03/2020 18:29, Vincent Guittot wrote:

[...]

> If it's fine for you, I'm going to add this in a new version of the patch

Yes, please do.

Reviewed-by: Dietmar Eggemann <dietmar.eggemann@....com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@....com>

[...]

>>> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
>>> index e9fd5379bb7e..5e03be046aba 100644
>>> --- a/kernel/sched/fair.c
>>> +++ b/kernel/sched/fair.c
>>> @@ -4627,11 +4627,17 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq)
>>>                         break;
>>>         }
>>>
>>> -       assert_list_leaf_cfs_rq(rq);
>>> -
>>>         if (!se)
>>>                 add_nr_running(rq, task_delta);
>>>
> 
> will add similar comment  as for enqueue_task_fair

Sounds good.

[...]