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Merge branch 'bridge-temp-and-perm' 

Nikolay Aleksandrov says:

====================
bridge: multicast: temp and perm entries behaviour enhancements

Patch 01 adds a notify when a group is deleted via br_multicast_del_pg()
(on expire, on device delete or on device down).
Patch 02 changes how bridge device and bridge port delete and down/up are
handled. Until now on bridge down all groups were flushed, now only the
temp ones are (same for port), perm entries are flushed only on port or
bridge removal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-07-20 12:49:11 -07:00
parent 03b6dc7d17 e10177abf8
commit 5b1d0d8f52
3 changed files with 24 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
net/bridge/br_if.c
View File

@ -281,6 +281,7 @@ void br_dev_delete(struct net_device *dev, struct list_head *head)
br_fdb_delete_by_port(br, NULL, 0, 1);
br_vlan_flush(br);
br_multicast_dev_del(br);
del_timer_sync(&br->gc_timer);
br_sysfs_delbr(br->dev);

29
net/bridge/br_multicast.c
View File

@ -273,6 +273,8 @@ static void br_multicast_del_pg(struct net_bridge *br,
rcu_assign_pointer(*pp, p->next);
hlist_del_init(&p->mglist);
del_timer(&p->timer);
br_mdb_notify(br->dev, p->port, &pg->addr, RTM_DELMDB,
p->state);
call_rcu_bh(&p->rcu, br_multicast_free_pg);
if (!mp->ports && !mp->mglist &&
@ -914,6 +916,15 @@ void br_multicast_add_port(struct net_bridge_port *port)
void br_multicast_del_port(struct net_bridge_port *port)
{
struct net_bridge *br = port->br;
struct net_bridge_port_group *pg;
struct hlist_node *n;
/* Take care of the remaining groups, only perm ones should be left */
spin_lock_bh(&br->multicast_lock);
hlist_for_each_entry_safe(pg, n, &port->mglist, mglist)
br_multicast_del_pg(br, pg);
spin_unlock_bh(&br->multicast_lock);
del_timer_sync(&port->multicast_router_timer);
}
@ -953,7 +964,8 @@ void br_multicast_disable_port(struct net_bridge_port *port)
spin_lock(&br->multicast_lock);
hlist_for_each_entry_safe(pg, n, &port->mglist, mglist)
br_multicast_del_pg(br, pg);
if (pg->state == MDB_TEMPORARY)
br_multicast_del_pg(br, pg);
if (!hlist_unhashed(&port->rlist))
hlist_del_init_rcu(&port->rlist);
@ -1730,12 +1742,6 @@ void br_multicast_open(struct net_bridge *br)
void br_multicast_stop(struct net_bridge *br)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *n;
u32 ver;
int i;
del_timer_sync(&br->multicast_router_timer);
del_timer_sync(&br->ip4_other_query.timer);
del_timer_sync(&br->ip4_own_query.timer);
@ -1743,6 +1749,15 @@ void br_multicast_stop(struct net_bridge *br)
del_timer_sync(&br->ip6_other_query.timer);
del_timer_sync(&br->ip6_own_query.timer);
#endif
}
void br_multicast_dev_del(struct net_bridge *br)
{
struct net_bridge_mdb_htable *mdb;
struct net_bridge_mdb_entry *mp;
struct hlist_node *n;
u32 ver;
int i;
spin_lock_bh(&br->multicast_lock);
mdb = mlock_dereference(br->mdb, br);

1
net/bridge/br_private.h
View File

@ -466,6 +466,7 @@ void br_multicast_disable_port(struct net_bridge_port *port);
void br_multicast_init(struct net_bridge *br);
void br_multicast_open(struct net_bridge *br);
void br_multicast_stop(struct net_bridge *br);
void br_multicast_dev_del(struct net_bridge *br);
void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
struct sk_buff *skb);
void br_multicast_forward(struct net_bridge_mdb_entry *mdst,