linux-kernel - Re: [PATCH v2 3/4] thermal/core: Use precomputed jiffies for the polling

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Date:   Thu, 10 Dec 2020 16:02:39 +0000
From:   Lukasz Luba <lukasz.luba@....com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     rui.zhang@...el.com, amitk@...nel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v2 3/4] thermal/core: Use precomputed jiffies for the
 polling



On 12/7/20 7:09 PM, Daniel Lezcano wrote:
> The delays are also stored in jiffies based unit. Use them instead of
> the ms.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---
>   drivers/thermal/thermal_core.c | 13 ++++---------
>   1 file changed, 4 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index 08c6e4e36896..16ef5d652d85 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -291,14 +291,9 @@ static int __init thermal_register_governors(void)
>   static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
>   					    int delay)
>   {
> -	if (delay > 1000)
> +	if (delay)
>   		mod_delayed_work(system_freezable_power_efficient_wq,
> -				 &tz->poll_queue,
> -				 round_jiffies(msecs_to_jiffies(delay)));
> -	else if (delay)
> -		mod_delayed_work(system_freezable_power_efficient_wq,
> -				 &tz->poll_queue,
> -				 msecs_to_jiffies(delay));
> +				 &tz->poll_queue, delay);
>   	else
>   		cancel_delayed_work(&tz->poll_queue);
>   }
> @@ -317,9 +312,9 @@ static void monitor_thermal_zone(struct thermal_zone_device *tz)
>   	mutex_lock(&tz->lock);
>   
>   	if (!stop && tz->passive)
> -		thermal_zone_device_set_polling(tz, tz->passive_delay_ms);
> +		thermal_zone_device_set_polling(tz, tz->passive_delay_jiffies);
>   	else if (!stop && tz->polling_delay_ms)
> -		thermal_zone_device_set_polling(tz, tz->polling_delay_ms);
> +		thermal_zone_device_set_polling(tz, tz->polling_delay_jiffies);
>   	else
>   		thermal_zone_device_set_polling(tz, 0);
>   
> 


Reviewed-by: Lukasz Luba <lukasz.luba@....com>