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authorLinus Lüssing <linus.luessing@web.de>2013-04-15 17:43:29 +0400
committerAntonio Quartulli <ordex@autistici.org>2013-05-17 11:54:28 +0400
commit72822225bd41320a98f5d7cde38317766e18983f (patch)
treec1947655ac129d0a1aa3212755097baa9600bb3e /net/batman-adv/originator.h
parentb0ce3508b25ea6fa10ae3ca254de1d695b521702 (diff)
downloadlinux-72822225bd41320a98f5d7cde38317766e18983f.tar.xz
batman-adv: Fix rcu_barrier() miss due to double call_rcu() in TT code
rcu_barrier() only waits for the currently scheduled rcu functions to finish - it won't wait for any function scheduled via another call_rcu() within an rcu scheduled function. Unfortunately our batadv_tt_orig_list_entry_free_ref() does just that, via a batadv_orig_node_free_ref() call, leading to our rcu_barrier() call potentially missing such a batadv_orig_node_free_ref(). This patch fixes this issue by calling the batadv_orig_node_free_rcu() directly from the rcu callback, removing the unnecessary, additional call_rcu() layer here. Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Acked-by: Antonio Quartulli <ordex@autistici.org>
Diffstat (limited to 'net/batman-adv/originator.h')
-rw-r--r--net/batman-adv/originator.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index 7df48fa7669d..734e5a3d8a5b 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -26,6 +26,7 @@ int batadv_originator_init(struct batadv_priv *bat_priv);
void batadv_originator_free(struct batadv_priv *bat_priv);
void batadv_purge_orig_ref(struct batadv_priv *bat_priv);
void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node);
+void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node);
struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
const uint8_t *addr);
struct batadv_neigh_node *