3cd4ca47aa57 ("rcu: Consolidate PREEMPT and !PREEMPT synchronize_rcu_expedited()")
142d106d5e62 ("rcu: Determine expedited-GP IPI handler at build time")
b56ada120921 ("Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD")