kernel/sched/core.c

3437 	int src_cpu, dst_cpu;
3445 	if (!cpu_active(arg->src_cpu) || !cpu_active(arg->dst_cpu))
3449 	dst_rq = cpu_rq(arg->dst_cpu);
3454 	if (task_cpu(arg->dst_task) != arg->dst_cpu)
3460 	if (!cpumask_test_cpu(arg->dst_cpu, arg->src_task->cpus_ptr))
3466 	__migrate_swap_task(arg->src_task, arg->dst_cpu);
3485 		.dst_cpu = target_cpu,
3488 	if (arg.src_cpu == arg.dst_cpu)
3495 	if (!cpu_active(arg.src_cpu) || !cpu_active(arg.dst_cpu))
3498 	if (!cpumask_test_cpu(arg.dst_cpu, arg.src_task->cpus_ptr))
3504 	trace_sched_swap_numa(cur, arg.src_cpu, p, arg.dst_cpu);
3505 	ret = stop_two_cpus(arg.dst_cpu, arg.src_cpu, migrate_swap_stop, &arg);