1 files changed, 44 insertions, 5 deletions

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index ae5e77cdc0ca..096c6276e6b9 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -203,7 +203,6 @@ static void destroy_dp_rcu(struct rcu_head *rcu)
 
 	ovs_flow_tbl_destroy(&dp->table);
 	free_percpu(dp->stats_percpu);
-	release_net(ovs_dp_get_net(dp));
 	kfree(dp->ports);
 	kfree(dp);
 }
@@ -1501,7 +1500,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 	if (dp == NULL)
 		goto err_free_reply;
 
-	ovs_dp_set_net(dp, hold_net(sock_net(skb->sk)));
+	ovs_dp_set_net(dp, sock_net(skb->sk));
 
 	/* Allocate table. */
 	err = ovs_flow_tbl_init(&dp->table);
@@ -1575,7 +1574,6 @@ err_destroy_percpu:
 err_destroy_table:
 	ovs_flow_tbl_destroy(&dp->table);
 err_free_dp:
-	release_net(ovs_dp_get_net(dp));
 	kfree(dp);
 err_free_reply:
 	kfree_skb(reply);
@@ -2194,14 +2192,55 @@ 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);