fixup! rcutorture: Emulate dyntick aspect of userspace nohz_full sojourn

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

include/linux/rcutiny.h

diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index 8e727f5..7aa93af 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -84,6 +84,7 @@ static inline void rcu_scheduler_starting(void) { }
 #endif /* #else #ifndef CONFIG_SRCU */
 static inline void rcu_end_inkernel_boot(void) { }
 static inline bool rcu_is_watching(void) { return true; }
+static inline void rcu_momentary_dyntick_idle(void) { }
 
 /* Avoid RCU read-side critical sections leaking across. */
 static inline void rcu_all_qs(void) { barrier(); }