Re: [PATCH v2 2/2] sched/fair: Fix task_fits_capacity() capacity type

From: Vincent Guittot
Date: Tue Nov 23 2021 - 03:38:59 EST


On Thu, 18 Nov 2021 at 15:15, Vincent Donnefort
<vincent.donnefort@xxxxxxx> wrote:
>
> capacity is an unsigned long value, compared with a task utilization which
> is unsigned long as well. There's no need for an intermediate implicit
> long cast.
>
> Fixes: 3b1baa6496e6 ("sched/fair: Add 'group_misfit_task' load-balance type")
> Signed-off-by: Vincent Donnefort <vincent.donnefort@xxxxxxx>

Reviewed-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>

>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 8fde6e10e24b..26a88975f68a 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -4070,7 +4070,8 @@ static inline void util_est_update(struct cfs_rq *cfs_rq,
> trace_sched_util_est_se_tp(&p->se);
> }
>
> -static inline int task_fits_capacity(struct task_struct *p, long capacity)
> +static inline int task_fits_capacity(struct task_struct *p,
> + unsigned long capacity)
> {
> return fits_capacity(uclamp_task_util(p), capacity);
> }
> --
> 2.25.1
>