sched_create_group 2151 include/linux/sched.h extern struct task_group *sched_create_group(struct task_group *parent);
sched_create_group 9105 kernel/sched.c 	tg = sched_create_group(parent);
sched_create_group  100 kernel/user.c  	up->tg = sched_create_group(&root_task_group);