On Tue, Sep 22, 2015 at 05:33:11PM +0300, Kirill Tkhai wrote:
...
> @@ -267,10 +267,9 @@ static inline struct cfs_rq *group_cfs_rq(struct
> sched_entity *grp)
>
> static inline bool is_top_cfs_rq(struct cfs_rq *cfs_rq)
> {
> - struct sched_entity *se;
> + struct task_group *tg = cfs_rq->tg;
>
> - se = cfs_rq->tg->se[cpu_of(rq_of(cfs_rq))];
> - return se && !se->parent;
> + return tg != &root_task_group && tg->parent == &root_task_group;
nit: root_task_group.parent == NULL so we could omit
tg != &root_task_group check.
> }
>
> static inline struct cfs_rq *top_cfs_rq_of(struct sched_entity *se)
>
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