Re: [PATCH 7/9] sched: Cgroup core-scheduling interface

[Josh Don]

Thanks, allowing for multiple group cookies in a hierarchy is a nice
improvement.

> +               if (tgi != tg) {
> +                       if (tgi->core_cookie || (tgi->core_parent && tgi->core_parent != tg))
> +                               continue;
> +
> +                       tgi->core_parent = parent;
> +                       tgi->core_cookie = 0;

core_cookie must already be 0, given the check above.