On Fri, Mar 22, 2013 at 12:46 PM, Stratos Karafotis
<strat...@semaphore.gr> wrote:
> With commit 8755a8ae31ba213db196324011a0da2a85807f25 the wall in
> get_cpu_idle_time is not calculated, when we use ondemand with
> io_is_busy = 1, preventing the CPU to increase to max frequency.
>
> Properly, calculate wall time when we use io_is_busy.
>
> Signed-off-by: Stratos Karafotis <strat...@semaphore.gr>
> ---
> drivers/cpufreq/cpufreq_governor.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/cpufreq_governor.c
> b/drivers/cpufreq/cpufreq_governor.c
> index b49d45d..41e5e56 100644
> --- a/drivers/cpufreq/cpufreq_governor.c
> +++ b/drivers/cpufreq/cpufreq_governor.c
> @@ -53,7 +53,7 @@ static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu,
> u64 *wall)
>
> u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
> {
> - u64 idle_time = get_cpu_idle_time_us(cpu, NULL);
> + u64 idle_time = get_cpu_idle_time_us(cpu, io_busy ? wall : NULL);
>
> if (idle_time == -1ULL)
> return get_cpu_idle_time_jiffy(cpu, wall);
Acked-by: Viresh Kumar <viresh.ku...@linaro.org>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
