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bridge: add flags to distinguish permanent mdb entires

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This patch adds a flag to each mdb entry, so that we can distinguish
permanent entries with temporary entries.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amerigo Wang 2012-12-14 22:09:51 +00:00 • committed by David S. Miller
parent 9dd9ff9953
commit ccb1c31a7a
4 changed files with 17 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

8
net/bridge/br_multicast.c
View file

@ -279,7 +279,7 @@ static void br_multicast_port_group_expired(unsigned long data)
spin_lock(&br->multicast_lock);
if (!netif_running(br->dev) || timer_pending(&pg->timer) ||
hlist_unhashed(&pg->mglist))
hlist_unhashed(&pg->mglist) || pg->state & MDB_PERMANENT)
goto out;
br_multicast_del_pg(br, pg);
@ -622,7 +622,8 @@ out:
struct net_bridge_port_group *br_multicast_new_port_group(
struct net_bridge_port *port,
struct br_ip *group,
struct net_bridge_port_group __rcu *next)
struct net_bridge_port_group __rcu *next,
unsigned char state)
{
struct net_bridge_port_group *p;
@ -632,6 +633,7 @@ struct net_bridge_port_group *br_multicast_new_port_group(
p->addr = *group;
p->port = port;
p->state = state;
rcu_assign_pointer(p->next, next);
hlist_add_head(&p->mglist, &port->mglist);
setup_timer(&p->timer, br_multicast_port_group_expired,
@ -674,7 +676,7 @@ static int br_multicast_add_group(struct net_bridge *br,
break;
}
p = br_multicast_new_port_group(port, group, *pp);
p = br_multicast_new_port_group(port, group, *pp, MDB_TEMPORARY);
if (unlikely(!p))
goto err;
rcu_assign_pointer(*pp, p);