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authorEric W. Biederman <ebiederm@xmission.com>2009-11-29 15:46:13 +0000
committerDavid S. Miller <davem@davemloft.net>2009-12-01 16:15:57 -0800
commitcfb8fbf2299d0e028ac59afd5b8c94ebe53d0859 (patch)
tree6becbcb1bb99ea946942d2205a1feba85bcff718 /net/ipv4/ip_gre.c
parentd2b3eb630767f0b0ae21566b1b88cb512f40c647 (diff)
net: Simplify ip_gre 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>
Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c24
1 files changed, 6 insertions, 18 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index c5f6af5d0f34..f36ce156cac6 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1309,17 +1309,8 @@ static void ipgre_destroy_tunnels(struct ipgre_net *ign, struct list_head *head)
static int ipgre_init_net(struct net *net)
{
+ struct ipgre_net *ign = net_generic(net, ipgre_net_id);
int err;
- struct ipgre_net *ign;
-
- err = -ENOMEM;
- ign = kzalloc(sizeof(struct ipgre_net), GFP_KERNEL);
- if (ign == NULL)
- goto err_alloc;
-
- err = net_assign_generic(net, ipgre_net_id, ign);
- if (err < 0)
- goto err_assign;
ign->fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "gre0",
ipgre_tunnel_setup);
@@ -1340,10 +1331,6 @@ static int ipgre_init_net(struct net *net)
err_reg_dev:
free_netdev(ign->fb_tunnel_dev);
err_alloc_dev:
- /* nothing */
-err_assign:
- kfree(ign);
-err_alloc:
return err;
}
@@ -1357,12 +1344,13 @@ static void ipgre_exit_net(struct net *net)
ipgre_destroy_tunnels(ign, &list);
unregister_netdevice_many(&list);
rtnl_unlock();
- kfree(ign);
}
static struct pernet_operations ipgre_net_ops = {
.init = ipgre_init_net,
.exit = ipgre_exit_net,
+ .id = &ipgre_net_id,
+ .size = sizeof(struct ipgre_net),
};
static int ipgre_tunnel_validate(struct nlattr *tb[], struct nlattr *data[])
@@ -1682,7 +1670,7 @@ static int __init ipgre_init(void)
return -EAGAIN;
}
- err = register_pernet_gen_device(&ipgre_net_id, &ipgre_net_ops);
+ err = register_pernet_device(&ipgre_net_ops);
if (err < 0)
goto gen_device_failed;
@@ -1700,7 +1688,7 @@ out:
tap_ops_failed:
rtnl_link_unregister(&ipgre_link_ops);
rtnl_link_failed:
- unregister_pernet_gen_device(ipgre_net_id, &ipgre_net_ops);
+ unregister_pernet_device(&ipgre_net_ops);
gen_device_failed:
inet_del_protocol(&ipgre_protocol, IPPROTO_GRE);
goto out;
@@ -1710,7 +1698,7 @@ static void __exit ipgre_fini(void)
{
rtnl_link_unregister(&ipgre_tap_ops);
rtnl_link_unregister(&ipgre_link_ops);
- unregister_pernet_gen_device(ipgre_net_id, &ipgre_net_ops);
+ unregister_pernet_device(&ipgre_net_ops);
if (inet_del_protocol(&ipgre_protocol, IPPROTO_GRE) < 0)
printk(KERN_INFO "ipgre close: can't remove protocol\n");
}