1 files changed, 6 insertions, 0 deletions

diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index b1804ff83d5e..38729d3cd236 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -245,11 +245,13 @@ void rcu_barrier(void)
 {
         struct rcu_synchronize rcu;
 
+        init_rcu_head_on_stack(&rcu.head);
         init_completion(&rcu.completion);
         /* Will wake me after RCU finished. */
         call_rcu(&rcu.head, wakeme_after_rcu);
         /* Wait for it. */
         wait_for_completion(&rcu.completion);
+        destroy_rcu_head_on_stack(&rcu.head);
 }
 EXPORT_SYMBOL_GPL(rcu_barrier);
 
@@ -257,11 +259,13 @@ void rcu_barrier_bh(void)
 {
         struct rcu_synchronize rcu;
 
+        init_rcu_head_on_stack(&rcu.head);
         init_completion(&rcu.completion);
         /* Will wake me after RCU finished. */
         call_rcu_bh(&rcu.head, wakeme_after_rcu);
         /* Wait for it. */
         wait_for_completion(&rcu.completion);
+        destroy_rcu_head_on_stack(&rcu.head);
 }
 EXPORT_SYMBOL_GPL(rcu_barrier_bh);
 
@@ -269,11 +273,13 @@ void rcu_barrier_sched(void)
 {
         struct rcu_synchronize rcu;
 
+        init_rcu_head_on_stack(&rcu.head);
         init_completion(&rcu.completion);
         /* Will wake me after RCU finished. */
         call_rcu_sched(&rcu.head, wakeme_after_rcu);
         /* Wait for it. */
         wait_for_completion(&rcu.completion);
+        destroy_rcu_head_on_stack(&rcu.head);
 }
 EXPORT_SYMBOL_GPL(rcu_barrier_sched);