Hi Vincent,
On 03/28/2014 06:57 PM, Vincent Guittot wrote:
> This new field cpu_power_orig reflects the available capacity of a CPUs unlike
> the cpu_power which reflects the current capacity that can be altered by
> frequency and rt tasks.
>
> Signed-off-by: Vincent Guittot <vincent.guit...@linaro.org>
Should not the subject be "add per rq cpu_power_orig"?
Regards
Preeti U Murthy
> ---
> kernel/sched/core.c | 2 +-
> kernel/sched/fair.c | 1 +
> kernel/sched/sched.h | 1 +
> 3 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 5b20b27..8513f83 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -6911,7 +6911,7 @@ void __init sched_init(void)
> #ifdef CONFIG_SMP
> rq->sd = NULL;
> rq->rd = NULL;
> - rq->cpu_power = SCHED_POWER_SCALE;
> + rq->cpu_power = rq->cpu_power_orig = SCHED_POWER_SCALE;
> rq->post_schedule = 0;
> rq->active_balance = 0;
> rq->next_balance = jiffies;
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 7387c05..f1e4db6 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -5611,6 +5611,7 @@ static void update_cpu_power(struct sched_domain *sd,
> int cpu)
>
> power >>= SCHED_POWER_SHIFT;
>
> + cpu_rq(cpu)->cpu_power_orig = power;
> sdg->sgp->power_orig = power;
>
> if (sched_feat(ARCH_POWER))
> diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
> index 46c3784..2abdf5c 100644
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -578,6 +578,7 @@ struct rq {
> struct sched_domain *sd;
>
> unsigned long cpu_power;
> + unsigned long cpu_power_orig;
>
> unsigned char idle_balance;
> /* For active balancing */
>
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