locking-urgent-2020-08-30

  - Prevent recursion by using raw_cpu_* operations

  - Fixup the interrupt state in the cpu idle code to be consistent

  - Push rcu_idle_enter/exit() invocations deeper into the idle path so
    that the lock operations are inside the RCU watching sections

  - Move trace_cpu_idle() into generic code so it's called before RCU goes
    idle.

  - Handle raw_local_irq* vs. local_irq* operations correctly

  - Move the tracepoints out from under the lockdep recursion handling
    which turned out to be fragile and inconsistent.