2 files changed, 45 insertions, 2 deletions

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index ae5e77cdc0ca..5bae7243c577 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -2194,14 +2194,55 @@ static int __net_init ovs_init_net(struct net *net)
         return 0;
 }
 
-static void __net_exit ovs_exit_net(struct net *net)
+static void __net_exit list_vports_from_net(struct net *net, struct net *dnet,
+                                            struct list_head *head)
 {
-        struct datapath *dp, *dp_next;
         struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
+        struct datapath *dp;
+
+        list_for_each_entry(dp, &ovs_net->dps, list_node) {
+                int i;
+
+                for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
+                        struct vport *vport;
+
+                        hlist_for_each_entry(vport, &dp->ports[i], dp_hash_node) {
+                                struct netdev_vport *netdev_vport;
+
+                                if (vport->ops->type != OVS_VPORT_TYPE_INTERNAL)
+                                        continue;
+
+                                netdev_vport = netdev_vport_priv(vport);
+                                if (dev_net(netdev_vport->dev) == dnet)
+                                        list_add(&vport->detach_list, head);
+                        }
+                }
+        }
+}
+
+static void __net_exit ovs_exit_net(struct net *dnet)
+{
+        struct datapath *dp, *dp_next;
+        struct ovs_net *ovs_net = net_generic(dnet, ovs_net_id);
+        struct vport *vport, *vport_next;
+        struct net *net;
+        LIST_HEAD(head);
 
         ovs_lock();
         list_for_each_entry_safe(dp, dp_next, &ovs_net->dps, list_node)
                 __dp_destroy(dp);
+
+        rtnl_lock();
+        for_each_net(net)
+                list_vports_from_net(net, dnet, &head);
+        rtnl_unlock();
+
+        /* Detach all vports from given namespace. */
+        list_for_each_entry_safe(vport, vport_next, &head, detach_list) {
+                list_del(&vport->detach_list);
+                ovs_dp_detach_port(vport);
+        }
+
         ovs_unlock();
 
         cancel_work_sync(&ovs_net->dp_notify_work);
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index f8ae295fb001..bc85331a6c60 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -103,6 +103,7 @@ struct vport_portids {
  * @ops: Class structure.
  * @percpu_stats: Points to per-CPU statistics used and maintained by vport
  * @err_stats: Points to error statistics used and maintained by vport
+ * @detach_list: list used for detaching vport in net-exit call.
  */
 struct vport {
         struct rcu_head rcu;
@@ -117,6 +118,7 @@ struct vport {
         struct pcpu_sw_netstats __percpu *percpu_stats;
 
         struct vport_err_stats err_stats;
+        struct list_head detach_list;
 };
 
 /**