linux-kernel - Re: [PATCH v3 4/5] sched/pelt: Add a new runnable average signal

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Date:   Fri, 21 Feb 2020 10:44:46 +0100
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Vincent Guittot <vincent.guittot@...aro.org>, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com, rostedt@...dmis.org,
        bsegall@...gle.com, mgorman@...e.de, linux-kernel@...r.kernel.org
Cc:     pauld@...hat.com, parth@...ux.ibm.com, valentin.schneider@....com,
        hdanton@...a.com
Subject: Re: [PATCH v3 4/5] sched/pelt: Add a new runnable average signal

On 19/02/2020 13:55, Vincent Guittot wrote:

[...]

> +static inline long se_runnable(struct sched_entity *se)
> +{

Why returning long here? sched_entity::runnable_weight is unsigned long
but could be unsigned int (cfs_rq::h_nr_running is unsigned int).

___update_load_sum() has 'unsigned long runnable' as parameter.