old_rd            442 kernel/sched/topology.c 	struct root_domain *old_rd = NULL;
old_rd            448 kernel/sched/topology.c 		old_rd = rq->rd;
old_rd            450 kernel/sched/topology.c 		if (cpumask_test_cpu(rq->cpu, old_rd->online))
old_rd            453 kernel/sched/topology.c 		cpumask_clear_cpu(rq->cpu, old_rd->span);
old_rd            460 kernel/sched/topology.c 		if (!atomic_dec_and_test(&old_rd->refcount))
old_rd            461 kernel/sched/topology.c 			old_rd = NULL;
old_rd            473 kernel/sched/topology.c 	if (old_rd)
old_rd            474 kernel/sched/topology.c 		call_rcu(&old_rd->rcu, free_rootdomain);