From cfb8fbf2299d0e028ac59afd5b8c94ebe53d0859 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 29 Nov 2009 15:46:13 +0000 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- net/ipv4/ip_gre.c | 24 ++++++------------------ 1 file 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"); } -- 2.20.1