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| author | Linus Lüssing <linus.luessing@web.de> | 2011-03-14 22:43:37 +0000 |
|---|---|---|
| committer | Sven Eckelmann <sven@narfation.org> | 2011-04-17 21:11:01 +0200 |
| commit | e1a5382f978b67b5cc36eec65e6046730ce07714 (patch) | |
| tree | f7ca07cde3a49858d0cfa33e0189a659a1fcc95d /net/batman-adv/originator.h | |
| parent | 57f0c07c4d0da8bcc23e21c330fe9c7c5cf776b5 (diff) | |
| download | linux-e1a5382f978b67b5cc36eec65e6046730ce07714.tar.gz linux-e1a5382f978b67b5cc36eec65e6046730ce07714.tar.bz2 linux-e1a5382f978b67b5cc36eec65e6046730ce07714.zip | |
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.h | 1 |
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); |