Date: Fri, 4 Mar 2016 10:50:07 +0000
From: Juri Lelli <juri.lelli@arm.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Linux PM list <linux-pm@vger.kernel.org>,
        Steve Muckle <steve.muckle@linaro.org>,
        ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        Viresh Kumar <viresh.kumar@linaro.org>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH v2 9/10] cpufreq: sched: Re-introduce
 cpufreq_update_util()
Message-ID: <20160304105007.GB4061@e106622-lin>
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Hi Rafael,

On 04/03/16 04:18, Rafael J. Wysocki wrote:

[...]

> +/**
> + * cpufreq_update_util - Take a note about CPU utilization changes.
> + * @time: Current time.
> + * @util: CPU utilization.
> + * @max: CPU capacity.
> + *
> + * This function is called on every invocation of update_load_avg() on the CPU
> + * whose utilization is being updated.
> + *
> + * It can only be called from RCU-sched read-side critical sections.
> + */
> +void cpufreq_update_util(u64 time, unsigned long util, unsigned long max)
> +{
> +	struct freq_update_hook *hook;
> +
> +#ifdef CONFIG_LOCKDEP
> +	WARN_ON(debug_locks && !rcu_read_lock_sched_held());
> +#endif
> +
> +	hook = rcu_dereference(*this_cpu_ptr(&cpufreq_freq_update_hook));

Small fix. You forgot to change this to rcu_dereference_sched() (you
only fixed that in 01/10).

Best,

- Juri