rcu_unexpedite_gp — 
     Cancel prior rcu_expedite_gp invocation
 
| void rcu_unexpedite_gp ( | void ); | 
   Undo a prior call to rcu_expedite_gp.  If all prior calls to
   rcu_expedite_gp are undone by a subsequent call to rcu_unexpedite_gp,
   and if the rcu_expedited sysfs/boot parameter is not set, then all
   subsequent calls to synchronize_rcu and friends will return to
   their normal non-expedited behavior.