diff options
Diffstat (limited to 'net/bridge/br_stp.c')
| -rw-r--r-- | net/bridge/br_stp.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index 8d7b4c7a1d54..71fd1a4e63cc 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -597,7 +597,11 @@ int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time) if (err) return err; + spin_lock_bh(&br->lock); + br->bridge_ageing_time = t; br->ageing_time = t; + spin_unlock_bh(&br->lock); + mod_timer(&br->gc_timer, jiffies); return 0; @@ -606,6 +610,29 @@ int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time) /* called under bridge lock */ void __br_set_topology_change(struct net_bridge *br, unsigned char val) { + unsigned long t; + int err; + + if (br->stp_enabled == BR_KERNEL_STP && br->topology_change != val) { + /* On topology change, set the bridge ageing time to twice the + * forward delay. Otherwise, restore its default ageing time. + */ + + if (val) { + t = 2 * br->forward_delay; + br_debug(br, "decreasing ageing time to %lu\n", t); + } else { + t = br->bridge_ageing_time; + br_debug(br, "restoring ageing time to %lu\n", t); + } + + err = __set_ageing_time(br->dev, t); + if (err) + br_warn(br, "error offloading ageing time\n"); + else + br->ageing_time = t; + } + br->topology_change = val; } |