diff options
| author | stephen hemminger <shemminger@vyatta.com> | 2010-04-27 17:01:06 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-28 03:13:54 +0200 |
| commit | 83f6a740b4e52f88e312223df2fc94016a208618 (patch) | |
| tree | 7cb24cc5a3a5779fe3dd9fbba3351cac19062b1f /net/bridge/br_multicast.c | |
| parent | bridge: multicast flood (diff) | |
| download | linux-83f6a740b4e52f88e312223df2fc94016a208618.tar.xz linux-83f6a740b4e52f88e312223df2fc94016a208618.zip | |
bridge: multicast port group RCU fix
The recently introduced bridge mulitcast port group list was only
partially using RCU correctly. It was missing rcu_dereference()
and missing the necessary barrier on deletion.
The code should have used one of the standard list methods (list or hlist)
instead of open coding a RCU based link list.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_multicast.c')
| -rw-r--r-- | net/bridge/br_multicast.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index d63868c9b2c0..7128abdce45f 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -259,7 +259,7 @@ static void br_multicast_del_pg(struct net_bridge *br, if (p != pg) continue; - *pp = p->next; + rcu_assign_pointer(*pp, p->next); hlist_del_init(&p->mglist); del_timer(&p->timer); del_timer(&p->query_timer); |