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Subject: Re: [PATCH v3 2/3] sched/topology: Remove SD_BALANCE_WAKE on
 asymmetric capacity systems
To:     Valentin Schneider <valentin.schneider@arm.com>,
        linux-kernel@vger.kernel.org
Cc:     mingo@redhat.com, peterz@infradead.org, vincent.guittot@linaro.org,
        morten.rasmussen@arm.com, qperret@google.com,
        adharmap@codeaurora.org
References: <20200126200934.18712-1-valentin.schneider@arm.com>
 <20200126200934.18712-3-valentin.schneider@arm.com>
From:   Dietmar Eggemann <dietmar.eggemann@arm.com>
Message-ID: <92f38645-c6ae-0e15-fac9-8c6064b5d4cf@arm.com>
Date:   Wed, 29 Jan 2020 17:27:00 +0100
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On 26/01/2020 21:09, Valentin Schneider wrote:
> From: Morten Rasmussen <morten.rasmussen@arm.com>

[...]

> @@ -1374,18 +1374,9 @@ sd_init(struct sched_domain_topology_level *tl,
>  	 * Convert topological properties into behaviour.
>  	 */
>  
> -	if (sd->flags & SD_ASYM_CPUCAPACITY) {
> -		struct sched_domain *t = sd;
> -
> -		/*
> -		 * Don't attempt to spread across CPUs of different capacities.
> -		 */
> -		if (sd->child)
> -			sd->child->flags &= ~SD_PREFER_SIBLING;
> -
> -		for_each_lower_domain(t)

It seems that with this goes the last use of for_each_lower_domain().

[...]