net: Simplify af_key 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/key/af_key.c b/net/key/af_key.c
index 478c8b3..84209fb 100644 (file)
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3765,28 +3765,14 @@ static struct xfrm_mgr pfkeyv2_mgr =
 
 static int __net_init pfkey_net_init(struct net *net)
 {
-       struct netns_pfkey *net_pfkey;
+       struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
        int rv;
 
-       net_pfkey = kmalloc(sizeof(struct netns_pfkey), GFP_KERNEL);
-       if (!net_pfkey) {
-               rv = -ENOMEM;
-               goto out_kmalloc;
-       }
        INIT_HLIST_HEAD(&net_pfkey->table);
        atomic_set(&net_pfkey->socks_nr, 0);
-       rv = net_assign_generic(net, pfkey_net_id, net_pfkey);
-       if (rv < 0)
-               goto out_assign;
+
        rv = pfkey_init_proc(net);
-       if (rv < 0)
-               goto out_proc;
-       return 0;
 
-out_proc:
-out_assign:
-       kfree(net_pfkey);
-out_kmalloc:
        return rv;
 }
 
@@ -3796,17 +3782,18 @@ static void __net_exit pfkey_net_exit(struct net *net)
 
        pfkey_exit_proc(net);
        BUG_ON(!hlist_empty(&net_pfkey->table));
-       kfree(net_pfkey);
 }
 
 static struct pernet_operations pfkey_net_ops = {
        .init = pfkey_net_init,
        .exit = pfkey_net_exit,
+       .id   = &pfkey_net_id,
+       .size = sizeof(struct netns_pfkey),
 };
 
 static void __exit ipsec_pfkey_exit(void)
 {
-       unregister_pernet_gen_subsys(pfkey_net_id, &pfkey_net_ops);
+       unregister_pernet_subsys(&pfkey_net_ops);
        xfrm_unregister_km(&pfkeyv2_mgr);
        sock_unregister(PF_KEY);
        proto_unregister(&key_proto);
@@ -3825,7 +3812,7 @@ static int __init ipsec_pfkey_init(void)
        err = xfrm_register_km(&pfkeyv2_mgr);
        if (err != 0)
                goto out_sock_unregister;
-       err = register_pernet_gen_subsys(&pfkey_net_id, &pfkey_net_ops);
+       err = register_pernet_subsys(&pfkey_net_ops);
        if (err != 0)
                goto out_xfrm_unregister_km;
 out: