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authorVlad Yasevich <vyasevich@gmail.com>2017-03-14 15:58:08 +0300
committerDavid S. Miller <davem@davemloft.net>2017-03-14 21:33:44 +0300
commit37c343b4f4e70e9dc328ab04903c0ec8d154c1a4 (patch)
treea6f8c919bd531170a127342085c1253d174b7f53
parent72ef9c4125c7b257e3a714d62d778ab46583d6a3 (diff)
downloadlinux-37c343b4f4e70e9dc328ab04903c0ec8d154c1a4.tar.xz
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>
-rw-r--r--net/core/dev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 8637b2b71f3d..7869ae3837ca 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1304,6 +1304,7 @@ void netdev_notify_peers(struct net_device *dev)
{
rtnl_lock();
call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, dev);
+ call_netdevice_notifiers(NETDEV_RESEND_IGMP, dev);
rtnl_unlock();
}
EXPORT_SYMBOL(netdev_notify_peers);