1 files changed, 13 insertions, 8 deletions

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index bdcb399329dd..a70debebfc5b 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -102,13 +102,13 @@ struct neigh_node *create_neighbor(struct orig_node *orig_node,
         return neigh_node;
 }
 
-void orig_node_free_ref(struct kref *refcount)
+static void orig_node_free_rcu(struct rcu_head *rcu)
 {
         struct hlist_node *node, *node_tmp;
         struct neigh_node *neigh_node, *tmp_neigh_node;
         struct orig_node *orig_node;
 
-        orig_node = container_of(refcount, struct orig_node, refcount);
+        orig_node = container_of(rcu, struct orig_node, rcu);
 
         spin_lock_bh(&orig_node->neigh_list_lock);
 
@@ -137,6 +137,12 @@ void orig_node_free_ref(struct kref *refcount)
         kfree(orig_node);
 }
 
+void orig_node_free_ref(struct orig_node *orig_node)
+{
+        if (atomic_dec_and_test(&orig_node->refcount))
+                call_rcu(&orig_node->rcu, orig_node_free_rcu);
+}
+
 void originator_free(struct bat_priv *bat_priv)
 {
         struct hashtable_t *hash = bat_priv->orig_hash;
@@ -163,7 +169,7 @@ void originator_free(struct bat_priv *bat_priv)
                                           head, hash_entry) {
 
                         hlist_del_rcu(node);
-                        kref_put(&orig_node->refcount, orig_node_free_ref);
+                        orig_node_free_ref(orig_node);
                 }
                 spin_unlock_bh(list_lock);
         }
@@ -196,7 +202,9 @@ struct orig_node *get_orig_node(struct bat_priv *bat_priv, uint8_t *addr)
         spin_lock_init(&orig_node->ogm_cnt_lock);
         spin_lock_init(&orig_node->bcast_seqno_lock);
         spin_lock_init(&orig_node->neigh_list_lock);
-        kref_init(&orig_node->refcount);
+
+        /* extra reference for return */
+        atomic_set(&orig_node->refcount, 2);
 
         orig_node->bat_priv = bat_priv;
         memcpy(orig_node->orig, addr, ETH_ALEN);
@@ -229,8 +237,6 @@ struct orig_node *get_orig_node(struct bat_priv *bat_priv, uint8_t *addr)
         if (hash_added < 0)
                 goto free_bcast_own_sum;
 
-        /* extra reference for return */
-        kref_get(&orig_node->refcount);
         return orig_node;
 free_bcast_own_sum:
         kfree(orig_node->bcast_own_sum);
@@ -348,8 +354,7 @@ static void _purge_orig(struct bat_priv *bat_priv)
                                 if (orig_node->gw_flags)
                                         gw_node_delete(bat_priv, orig_node);
                                 hlist_del_rcu(node);
-                                kref_put(&orig_node->refcount,
-                                         orig_node_free_ref);
+                                orig_node_free_ref(orig_node);
                                 continue;
                         }