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| author | Sven Eckelmann <sven@narfation.org> | 2016-01-16 10:29:53 +0100 |
|---|---|---|
| committer | Antonio Quartulli <a@unstable.cc> | 2016-02-10 23:24:04 +0800 |
| commit | 77ae32e8989a26d24bd8007be3b9dc4a348175a9 (patch) | |
| tree | 0e2960ffcb0a0850cfe684a5de6094d1101c0a3f /net/batman-adv/routing.c | |
| parent | a6ba0d340db63b95cd07484370cca69929d8f4e4 (diff) | |
| download | linux-77ae32e8989a26d24bd8007be3b9dc4a348175a9.tar.gz linux-77ae32e8989a26d24bd8007be3b9dc4a348175a9.tar.bz2 linux-77ae32e8989a26d24bd8007be3b9dc4a348175a9.zip | |
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.c | 8 |
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; |