net: Simplify vlan pernet operations.

Take advantage of the new pernet automatic storage management,
and stop using compatibility network namespace functions.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 225aa2fac0e36f74684f20efd77de616f523cbea..91e9073e199569c528fe05f88e2f553a2ea50274 100644 (file)
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -686,47 +686,28 @@ out:
 
 static int vlan_init_net(struct net *net)
 {
+       struct vlan_net *vn = net_generic(net, vlan_net_id);
        int err;
-       struct vlan_net *vn;
-
-       err = -ENOMEM;
-       vn = kzalloc(sizeof(struct vlan_net), GFP_KERNEL);
-       if (vn == NULL)
-               goto err_alloc;
-
-       err = net_assign_generic(net, vlan_net_id, vn);
-       if (err < 0)
-               goto err_assign;
 
        vn->name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
 
        err = vlan_proc_init(net);
-       if (err < 0)
-               goto err_proc;
 
-       return 0;
-
-err_proc:
-       /* nothing */
-err_assign:
-       kfree(vn);
-err_alloc:
        return err;
 }
 
 static void vlan_exit_net(struct net *net)
 {
-       struct vlan_net *vn;
-
-       vn = net_generic(net, vlan_net_id);
        rtnl_kill_links(net, &vlan_link_ops);
+
        vlan_proc_cleanup(net);
-       kfree(vn);
 }
 
 static struct pernet_operations vlan_net_ops = {
        .init = vlan_init_net,
        .exit = vlan_exit_net,
+       .id   = &vlan_net_id,
+       .size = sizeof(struct vlan_net),
 };
 
 static int __init vlan_proto_init(void)
@@ -736,7 +717,7 @@ static int __init vlan_proto_init(void)
        pr_info("%s v%s %s\n", vlan_fullname, vlan_version, vlan_copyright);
        pr_info("All bugs added by %s\n", vlan_buggyright);
 
-       err = register_pernet_gen_device(&vlan_net_id, &vlan_net_ops);
+       err = register_pernet_device(&vlan_net_ops);
        if (err < 0)
                goto err0;
 
@@ -761,7 +742,7 @@ err4:
 err3:
        unregister_netdevice_notifier(&vlan_notifier_block);
 err2:
-       unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
+       unregister_pernet_device(&vlan_net_ops);
 err0:
        return err;
 }
@@ -781,7 +762,7 @@ static void __exit vlan_cleanup_module(void)
        for (i = 0; i < VLAN_GRP_HASH_SIZE; i++)
                BUG_ON(!hlist_empty(&vlan_group_hash[i]));
 
-       unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
+       unregister_pernet_device(&vlan_net_ops);
        rcu_barrier(); /* Wait for completion of call_rcu()'s */
 
        vlan_gvrp_uninit();