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authorLinus Lüssing <linus.luessing@web.de>2011-03-14 22:43:37 +0000
committerSven Eckelmann <sven@narfation.org>2011-04-17 21:11:01 +0200
commite1a5382f978b67b5cc36eec65e6046730ce07714 (patch)
treef7ca07cde3a49858d0cfa33e0189a659a1fcc95d /net/batman-adv/originator.h
parent57f0c07c4d0da8bcc23e21c330fe9c7c5cf776b5 (diff)
downloadlinux-e1a5382f978b67b5cc36eec65e6046730ce07714.tar.bz2
batman-adv: Make orig_node->router an rcu protected pointer
The rcu protected macros rcu_dereference() and rcu_assign_pointer() for the orig_node->router need to be used, as well as spin/rcu locking. Otherwise we might end up using a router pointer pointing to already freed memory. Therefore this commit introduces the safe getter method orig_node_get_router(). Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.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 5cc011057da1..e1d641f27aa9 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -34,6 +34,7 @@ struct neigh_node *create_neighbor(struct orig_node *orig_node,
uint8_t *neigh,
struct hard_iface *if_incoming);
void neigh_node_free_ref(struct neigh_node *neigh_node);
+struct neigh_node *orig_node_get_router(struct orig_node *orig_node);
int orig_seq_print_text(struct seq_file *seq, void *offset);
int orig_hash_add_if(struct hard_iface *hard_iface, int max_if_num);
int orig_hash_del_if(struct hard_iface *hard_iface, int max_if_num);