linux-kernel - Re: [PATCH 2/9] sched: Fix balance

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Message-ID: <87d02ca8m0.fsf@nanos.tec.linutronix.de>
Date:   Wed, 23 Sep 2020 16:08:39 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Peter Zijlstra <peterz@...radead.org>, mingo@...nel.org
Cc:     linux-kernel@...r.kernel.org, bigeasy@...utronix.de,
        qais.yousef@....com, swood@...hat.com, peterz@...radead.org,
        valentin.schneider@....com, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vincent.donnefort@....com
Subject: Re: [PATCH 2/9] sched: Fix balance_callback()

On Mon, Sep 21 2020 at 18:35, Peter Zijlstra wrote:
>  	return 0;
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -1220,6 +1220,8 @@ static inline void rq_pin_lock(struct rq
>  #ifdef CONFIG_SCHED_DEBUG
>  	rq->clock_update_flags &= (RQCF_REQ_SKIP|RQCF_ACT_SKIP);
>  	rf->clock_update_flags = 0;
> +
> +	SCHED_WARN_ON(rq->balance_callback);

fails to compile on !SMP

Thanks,

        tglx