Merge "sched: Fix cpu_active_mask/cpu_online_mask race"

	case CPU_STARTING:

		set_cpu_rq_start_time();

		return NOTIFY_OK;

	case CPU_ONLINE:

		/*

		 * At this point a starting CPU has marked itself as online via

		 * set_cpu_online(). But it might not yet have marked itself

		 * as active, which is essential from here on.

		 *

		 * Thus, fall-through and help the starting CPU along.

		 */

	case CPU_DOWN_FAILED:

		set_cpu_active((long)hcpu, true);

		return NOTIFY_OK;