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authorSven Eckelmann <sven@narfation.org>2016-01-16 10:29:53 +0100
committerAntonio Quartulli <a@unstable.cc>2016-02-10 23:24:04 +0800
commit77ae32e8989a26d24bd8007be3b9dc4a348175a9 (patch)
tree0e2960ffcb0a0850cfe684a5de6094d1101c0a3f /net/batman-adv/routing.c
parenta6ba0d340db63b95cd07484370cca69929d8f4e4 (diff)
downloadlinux-77ae32e8989a26d24bd8007be3b9dc4a348175a9.tar.bz2
batman-adv: Convert batadv_neigh_node to kref
batman-adv uses a self-written reference implementation which is just based on atomic_t. This is less obvious when reading the code than kref and therefore increases the change that the reference counting will be missed. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <a@unstable.cc>
Diffstat (limited to 'net/batman-adv/routing.c')
-rw-r--r--net/batman-adv/routing.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 4a5cd8bf2661..205310b56c2b 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -73,7 +73,7 @@ static void _batadv_update_route(struct batadv_priv *bat_priv,
rcu_read_lock();
curr_router = rcu_dereference(orig_ifinfo->router);
- if (curr_router && !atomic_inc_not_zero(&curr_router->refcount))
+ if (curr_router && !kref_get_unless_zero(&curr_router->refcount))
curr_router = NULL;
rcu_read_unlock();
@@ -101,7 +101,7 @@ static void _batadv_update_route(struct batadv_priv *bat_priv,
batadv_neigh_node_free_ref(curr_router);
/* increase refcount of new best neighbor */
- if (neigh_node && !atomic_inc_not_zero(&neigh_node->refcount))
+ if (neigh_node && !kref_get_unless_zero(&neigh_node->refcount))
neigh_node = NULL;
spin_lock_bh(&orig_node->neigh_list_lock);
@@ -505,7 +505,7 @@ batadv_find_router(struct batadv_priv *bat_priv,
if (!cand_router)
goto next;
- if (!atomic_inc_not_zero(&cand_router->refcount)) {
+ if (!kref_get_unless_zero(&cand_router->refcount)) {
cand_router = NULL;
goto next;
}
@@ -524,7 +524,7 @@ batadv_find_router(struct batadv_priv *bat_priv,
/* mark the first possible candidate */
if (!first_candidate) {
- atomic_inc(&cand_router->refcount);
+ kref_get(&cand_router->refcount);
kref_get(&cand->refcount);
first_candidate = cand;
first_candidate_router = cand_router;