static void cgroup_file_notify_timer(struct timer_list *timer)
{
	cgroup_file_notify(container_of(timer, struct cgroup_file,
					notify_timer));
}
static void cgroup_file_notify_timer(struct timer_list *timer)
{
	cgroup_file_notify(container_of(timer, struct cgroup_file,
					notify_timer));
}