1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 779d70749beb..2c9b46cff3d7 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -406,6 +406,11 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev,
                 n->next->pprev = &n->next;
 }
 
+#define __hlist_for_each_rcu(pos, head)                 \
+        for (pos = rcu_dereference((head)->first);      \
+             pos && ({ prefetch(pos->next); 1; });      \
+             pos = rcu_dereference(pos->next))
+
 /**
  * hlist_for_each_entry_rcu - iterate over rcu list of given type
  * @tpos:       the type * to use as a loop cursor.