440 void rq_attach_root(struct rq *rq, struct root_domain *rd)  in rq_attach_root()  argument
445 	raw_spin_lock_irqsave(&rq->lock, flags);  in rq_attach_root()
447 	if (rq->rd) {  in rq_attach_root()
448 		old_rd = rq->rd;  in rq_attach_root()
450 		if (cpumask_test_cpu(rq->cpu, old_rd->online))  in rq_attach_root()
451 			set_rq_offline(rq);  in rq_attach_root()
453 		cpumask_clear_cpu(rq->cpu, old_rd->span);  in rq_attach_root()
465 	rq->rd = rd;  in rq_attach_root()
467 	cpumask_set_cpu(rq->cpu, rd->span);  in rq_attach_root()
468 	if (cpumask_test_cpu(rq->cpu, cpu_active_mask))  in rq_attach_root()
469 		set_rq_online(rq);  in rq_attach_root()
471 	raw_spin_unlock_irqrestore(&rq->lock, flags);  in rq_attach_root()
666 	struct rq *rq = cpu_rq(cpu);  in cpu_attach_domain()  local
701 	rq_attach_root(rq, rd);  in cpu_attach_domain()
702 	tmp = rq->sd;  in cpu_attach_domain()
703 	rcu_assign_pointer(rq->sd, sd);  in cpu_attach_domain()