Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "A revert of a commit which pointelessly widened a preempt disabled
  section which in turn caused might_sleep() to trigger.

  The patch intended to prevent usage of smp_processor_id() in
  preemptible context, but the usage in that case is fine because the
  thread is pinned on a single cpu and therefore cannot be migrated off"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "sched/core: Do not use smp_processor_id() with preempt enabled in smpboot_thread_fn()"