diff options
| author | Sven Eckelmann <sven@narfation.org> | 2016-01-05 12:06:20 +0100 |
|---|---|---|
| committer | Antonio Quartulli <a@unstable.cc> | 2016-01-16 15:50:00 +0100 |
| commit | 42eff6a617e23b691f8e4467f4687ed7245a92db (patch) | |
| tree | 6d7d64bc6e77a67f067c87b1cc1c58d364738790 /net/batman-adv/originator.h | |
| parent | batman-adv: Drop immediate batadv_hard_iface free function (diff) | |
| download | linux-42eff6a617e23b691f8e4467f4687ed7245a92db.tar.xz linux-42eff6a617e23b691f8e4467f4687ed7245a92db.zip | |
batman-adv: Drop immediate orig_node free function
It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.
But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_orig_node_free_ref.
Fixes: 72822225bd41 ("batman-adv: Fix rcu_barrier() miss due to double call_rcu() in TT code")
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/originator.h')
| -rw-r--r-- | net/batman-adv/originator.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h index 29557753d552..cf0730414ed2 100644 --- a/net/batman-adv/originator.h +++ b/net/batman-adv/originator.h @@ -38,7 +38,6 @@ 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_orig_node_new(struct batadv_priv *bat_priv, const u8 *addr); struct batadv_hardif_neigh_node * |