Re: [PATCH] sched/fair: fix select_task_rq_fair return -1

[Hillf Danton]

> 
> The change below  will give a similar behavior than 3.18 for 3.14 and
> we still match the condition if (new_cpu == -1 || new_cpu == cpu) in
> 
And -1 is no longer needed.

> order to go in the child level
> 
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -4151,7 +4151,7 @@ static int
>  find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu)
>  {
>         unsigned long load, min_load = ULONG_MAX;
> -       int idlest = -1;
> +       int idlest = this_cpu;
>         int i;
> 
>         /* Traverse only the allowed CPUs */
> 

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