net: Resend IGMP memberships upon peer notification.
When we notify peers of potential changes, it's also good to update IGMP memberships. For example, during VM migration, updating IGMP memberships will redirect existing multicast streams to the VM at the new location. Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1304,6 +1304,7 @@ void netdev_notify_peers(struct net_device *dev)
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{
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rtnl_lock();
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call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, dev);
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call_netdevice_notifiers(NETDEV_RESEND_IGMP, dev);
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rtnl_unlock();
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}
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EXPORT_SYMBOL(netdev_notify_peers);
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