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SubjectRe: [PATCH v10 1/3] cpufreq: Add mechanism for registering utilization update callbacks
On 19-02-16, 23:26, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Subject: [PATCH] cpufreq: Rework the scheduler hooks for triggering updates
>
> Commit fe7034338ba0 (cpufreq: Add mechanism for registering
> utilization update callbacks) added cpufreq_update_util() to be
> called by the scheduler (from the CFS part) on utilization updates.
> The goal was to allow CFS to pass utilization information to cpufreq
> and to trigger it to evaluate the frequency/voltage configuration
> (P-state) of every CPU on a regular basis.
>
> However, the last two arguments of that function are never used by
> the current code, so CFS might simply call cpufreq_trigger_update()
> instead of it.
>
> For this reason, drop the last two arguments of cpufreq_update_util(),
> rename it to cpufreq_trigger_update() and modify CFS to call it.
>
> Moreover, since the utilization is not involved in that now, rename
> data types, functions and variables related to cpufreq_trigger_update()
> to reflect that (eg. struct update_util_data becomes struct
> freq_update_hook and so on).
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> drivers/cpufreq/cpufreq.c | 48 ++++++++++++++++++++++---------------
> drivers/cpufreq/cpufreq_governor.c | 27 ++++++++++----------
> drivers/cpufreq/cpufreq_governor.h | 2 -
> drivers/cpufreq/intel_pstate.c | 15 +++++------
> include/linux/cpufreq.h | 32 +++---------------------
> kernel/sched/deadline.c | 2 -
> kernel/sched/fair.c | 13 +---------
> kernel/sched/rt.c | 2 -
> 8 files changed, 58 insertions(+), 83 deletions(-)

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

--
viresh

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