Re: [PATCH 58/89] sched/headers: Move the 'root_task_group' declaration to <linux/sched/autogroup.h>

[Peter Zijlstra]

On Mon, Feb 06, 2017 at 02:29:01PM +0100, Ingo Molnar wrote:
> diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
> index c0810fe196f4..55cd496df884 100644
> --- a/include/linux/sched/autogroup.h
> +++ b/include/linux/sched/autogroup.h

> @@ -23,4 +24,8 @@ static inline void sched_autogroup_exit(struct signal_struct *sig) { }
>  static inline void sched_autogroup_exit_task(struct task_struct *p) { }
>  #endif
>  
> +#ifdef CONFIG_CGROUP_SCHED
> +extern struct task_group root_task_group;
> +#endif /* CONFIG_CGROUP_SCHED */
> +
>  #endif /* _LINUX_SCHED_AUTOGROUP_H */

That's a bit weird. It has nothing to do with autogroup.