Re: [patch v8 4/9] sched: fix slept time double counting in enqueue entity

[Alex Shi <seakeel@gmail.com>]

On 06/20/2013 10:46 AM, Lei Wen wrote:
> 
> 
> But here I have a question, there is another usage of __synchronzie_entity_decay
> in current kernel, in the switched_from_fair function.
> 
> If task being frequently switched between rt and fair class, would it
> also bring the
> redundant issue? Do we need patch like below?
> 
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index b5408e1..9640c66 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -5856,7 +5856,7 @@ static void switched_from_fair(struct rq *rq,
> struct task_struct *p)
>         */
>         if (p->se.avg.decay_count) {
>                 struct cfs_rq *cfs_rq = cfs_rq_of(&p->se);
> -               se->avg.last_runnable_update +=
> +               p->se.avg.last_runnable_update +=

what tree does this patch base on?
>                                 __synchronize_entity_decay(&p->se);
>                 subtract_blocked_load_contrib(cfs_rq,
>                                 p->se.avg.load_avg_contrib);


-- 
Thanks
    Alex