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path: root/net/bridge/br_multicast.c
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Diffstat (limited to 'net/bridge/br_multicast.c')
-rw-r--r--net/bridge/br_multicast.c38
1 files changed, 26 insertions, 12 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index d1c578630678..8b0b610ca2c9 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -272,7 +272,7 @@ static void br_multicast_del_pg(struct net_bridge *br,
del_timer(&p->timer);
call_rcu_bh(&p->rcu, br_multicast_free_pg);
- if (!mp->ports && !mp->mglist && mp->timer_armed &&
+ if (!mp->ports && !mp->mglist &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
@@ -620,7 +620,6 @@ rehash:
mp->br = br;
mp->addr = *group;
-
setup_timer(&mp->timer, br_multicast_group_expired,
(unsigned long)mp);
@@ -660,6 +659,7 @@ static int br_multicast_add_group(struct net_bridge *br,
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
+ unsigned long now = jiffies;
int err;
spin_lock(&br->multicast_lock);
@@ -674,6 +674,7 @@ static int br_multicast_add_group(struct net_bridge *br,
if (!port) {
mp->mglist = true;
+ mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
}
@@ -681,7 +682,7 @@ static int br_multicast_add_group(struct net_bridge *br,
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (p->port == port)
- goto out;
+ goto found;
if ((unsigned long)p->port < (unsigned long)port)
break;
}
@@ -692,6 +693,8 @@ static int br_multicast_add_group(struct net_bridge *br,
rcu_assign_pointer(*pp, p);
br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
+found:
+ mod_timer(&p->timer, now + br->multicast_membership_interval);
out:
err = 0;
@@ -1191,9 +1194,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
if (!mp)
goto out;
- mod_timer(&mp->timer, now + br->multicast_membership_interval);
- mp->timer_armed = true;
-
max_delay *= br->multicast_last_member_count;
if (mp->mglist &&
@@ -1270,9 +1270,6 @@ static int br_ip6_multicast_query(struct net_bridge *br,
if (!mp)
goto out;
- mod_timer(&mp->timer, now + br->multicast_membership_interval);
- mp->timer_armed = true;
-
max_delay *= br->multicast_last_member_count;
if (mp->mglist &&
(timer_pending(&mp->timer) ?
@@ -1358,7 +1355,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
call_rcu_bh(&p->rcu, br_multicast_free_pg);
br_mdb_notify(br->dev, port, group, RTM_DELMDB);
- if (!mp->ports && !mp->mglist && mp->timer_armed &&
+ if (!mp->ports && !mp->mglist &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
}
@@ -1370,12 +1367,30 @@ static void br_multicast_leave_group(struct net_bridge *br,
br->multicast_last_member_interval;
if (!port) {
- if (mp->mglist && mp->timer_armed &&
+ if (mp->mglist &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
try_to_del_timer_sync(&mp->timer) >= 0)) {
mod_timer(&mp->timer, time);
}
+
+ goto out;
+ }
+
+ for (p = mlock_dereference(mp->ports, br);
+ p != NULL;
+ p = mlock_dereference(p->next, br)) {
+ if (p->port != port)
+ continue;
+
+ if (!hlist_unhashed(&p->mglist) &&
+ (timer_pending(&p->timer) ?
+ time_after(p->timer.expires, time) :
+ try_to_del_timer_sync(&p->timer) >= 0)) {
+ mod_timer(&p->timer, time);
+ }
+
+ break;
}
out:
spin_unlock(&br->multicast_lock);
@@ -1798,7 +1813,6 @@ void br_multicast_stop(struct net_bridge *br)
hlist_for_each_entry_safe(mp, n, &mdb->mhash[i],
hlist[ver]) {
del_timer(&mp->timer);
- mp->timer_armed = false;
call_rcu_bh(&mp->rcu, br_multicast_free_group);
}
}