1 files changed, 6 insertions, 0 deletions

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 6a652d1f3d7f..489992997c06 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3841,6 +3841,12 @@ void synchronize_sched_expedited(void)
         if (rcu_blocking_is_gp())
                 return;
 
+        /* If expedited grace periods are prohibited, fall back to normal. */
+        if (rcu_gp_is_normal()) {
+                wait_rcu_gp(call_rcu_sched);
+                return;
+        }
+
         /* Take a snapshot of the sequence number.  */
         s = rcu_exp_gp_seq_snap(rsp);