datapath: Use RCU callback when detaching netdevices.

[sliver-openvswitch.git] / datapath / vport-netdev.c

diff --git a/datapath/vport-netdev.c b/datapath/vport-netdev.c
index f1ecfdb..5f437d3 100644 (file)
--- a/datapath/vport-netdev.c
+++ b/datapath/vport-netdev.c
@@ -173,6 +173,15 @@ error:
        return ERR_PTR(err);
 }
 
+static void free_port_rcu(struct rcu_head *rcu)
+{
+       struct netdev_vport *netdev_vport = container_of(rcu,
+                                       struct netdev_vport, rcu);
+
+       dev_put(netdev_vport->dev);
+       ovs_vport_free(vport_from_priv(netdev_vport));
+}
+
 static void netdev_destroy(struct vport *vport)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
@@ -181,10 +190,7 @@ static void netdev_destroy(struct vport *vport)
        netdev_rx_handler_unregister(netdev_vport->dev);
        dev_set_promiscuity(netdev_vport->dev, -1);
 
-       synchronize_rcu();
-
-       dev_put(netdev_vport->dev);
-       ovs_vport_free(vport);
+       call_rcu(&netdev_vport->rcu, free_port_rcu);
 }
 
 int ovs_netdev_set_addr(struct vport *vport, const unsigned char *addr)