Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Four bugfixes and one performance fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Avoid integer overflow
sched: Optimize task_sched_runtime()
sched/numa: Cure update_numa_stats() vs. hotplug
sched/numa: Fix NULL pointer dereference in task_numa_migrate()
sched: Fix endless sync_sched/rcu() loop inside _cpu_down()