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authorHerbert Xu <herbert@gondor.apana.org.au>2011-02-12 01:05:42 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-12 01:05:42 -0800
commit8a870178c0ad1bae9994c99bd01eb10c9903e616 (patch)
treee850d082e5aef4f436867a3301d1bf15fda80d06 /net/bridge/br_multicast.c
parent24f9cdcbd743fd6adb8fb83688d8d86dcccde662 (diff)
bridge: Replace mp->mglist hlist with a bool
As it turns out we never need to walk through the list of multicast groups subscribed by the bridge interface itself (the only time we'd want to do that is when we shut down the bridge, in which case we simply walk through all multicast groups), we don't really need to keep an hlist for mp->mglist. This means that we can replace it with just a single bit to indicate whether the bridge interface is subscribed to a group. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_multicast.c')
-rw-r--r--net/bridge/br_multicast.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index c558274051e..09d5c098792 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -232,8 +232,7 @@ static void br_multicast_group_expired(unsigned long data)
if (!netif_running(br->dev) || timer_pending(&mp->timer))
goto out;
- if (!hlist_unhashed(&mp->mglist))
- hlist_del_init(&mp->mglist);
+ mp->mglist = false;
if (mp->ports)
goto out;
@@ -276,7 +275,7 @@ static void br_multicast_del_pg(struct net_bridge *br,
del_timer(&p->query_timer);
call_rcu_bh(&p->rcu, br_multicast_free_pg);
- if (!mp->ports && hlist_unhashed(&mp->mglist) &&
+ if (!mp->ports && !mp->mglist &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
@@ -528,7 +527,7 @@ static void br_multicast_group_query_expired(unsigned long data)
struct net_bridge *br = mp->br;
spin_lock(&br->multicast_lock);
- if (!netif_running(br->dev) || hlist_unhashed(&mp->mglist) ||
+ if (!netif_running(br->dev) || !mp->mglist ||
mp->queries_sent >= br->multicast_last_member_count)
goto out;
@@ -719,8 +718,7 @@ static int br_multicast_add_group(struct net_bridge *br,
goto err;
if (!port) {
- if (hlist_unhashed(&mp->mglist))
- hlist_add_head(&mp->mglist, &br->mglist);
+ mp->mglist = true;
mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
}
@@ -1166,7 +1164,7 @@ static int br_ip4_multicast_query(struct net_bridge *br,
max_delay *= br->multicast_last_member_count;
- if (!hlist_unhashed(&mp->mglist) &&
+ if (mp->mglist &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
try_to_del_timer_sync(&mp->timer) >= 0))
@@ -1237,7 +1235,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
goto out;
max_delay *= br->multicast_last_member_count;
- if (!hlist_unhashed(&mp->mglist) &&
+ if (mp->mglist &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, now + max_delay) :
try_to_del_timer_sync(&mp->timer) >= 0))
@@ -1284,7 +1282,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
br->multicast_last_member_interval;
if (!port) {
- if (!hlist_unhashed(&mp->mglist) &&
+ if (mp->mglist &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
try_to_del_timer_sync(&mp->timer) >= 0)) {