Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / net / ipv6 / reassembly.c

diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index a60d7d1..6ab957e 100644 (file)
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -5,8 +5,6 @@
  *     Authors:
  *     Pedro Roque             <roque@di.fc.ul.pt>
  *
- *     $Id: reassembly.c,v 1.26 2001/03/07 22:00:57 davem Exp $
- *
  *     Based on: net/ipv4/ip_fragment.c
  *
  *     This program is free software; you can redistribute it and/or
@@ -634,7 +632,7 @@ static struct inet6_protocol frag_protocol =
 };
 
 #ifdef CONFIG_SYSCTL
-static struct ctl_table ip6_frags_ctl_table[] = {
+static struct ctl_table ip6_frags_ns_ctl_table[] = {
        {
                .ctl_name       = NET_IPV6_IP6FRAG_HIGH_THRESH,
                .procname       = "ip6frag_high_thresh",
@@ -660,6 +658,10 @@ static struct ctl_table ip6_frags_ctl_table[] = {
                .proc_handler   = &proc_dointvec_jiffies,
                .strategy       = &sysctl_jiffies,
        },
+       { }
+};
+
+static struct ctl_table ip6_frags_ctl_table[] = {
        {
                .ctl_name       = NET_IPV6_IP6FRAG_SECRET_INTERVAL,
                .procname       = "ip6frag_secret_interval",
@@ -672,21 +674,20 @@ static struct ctl_table ip6_frags_ctl_table[] = {
        { }
 };
 
-static int ip6_frags_sysctl_register(struct net *net)
+static int ip6_frags_ns_sysctl_register(struct net *net)
 {
        struct ctl_table *table;
        struct ctl_table_header *hdr;
 
-       table = ip6_frags_ctl_table;
+       table = ip6_frags_ns_ctl_table;
        if (net != &init_net) {
-               table = kmemdup(table, sizeof(ip6_frags_ctl_table), GFP_KERNEL);
+               table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
                if (table == NULL)
                        goto err_alloc;
 
                table[0].data = &net->ipv6.frags.high_thresh;
                table[1].data = &net->ipv6.frags.low_thresh;
                table[2].data = &net->ipv6.frags.timeout;
-               table[3].mode &= ~0222;
        }
 
        hdr = register_net_sysctl_table(net, net_ipv6_ctl_path, table);
@@ -703,7 +704,7 @@ err_alloc:
        return -ENOMEM;
 }
 
-static void ip6_frags_sysctl_unregister(struct net *net)
+static void ip6_frags_ns_sysctl_unregister(struct net *net)
 {
        struct ctl_table *table;
 
@@ -711,13 +712,36 @@ static void ip6_frags_sysctl_unregister(struct net *net)
        unregister_net_sysctl_table(net->ipv6.sysctl.frags_hdr);
        kfree(table);
 }
+
+static struct ctl_table_header *ip6_ctl_header;
+
+static int ip6_frags_sysctl_register(void)
+{
+       ip6_ctl_header = register_net_sysctl_rotable(net_ipv6_ctl_path,
+                       ip6_frags_ctl_table);
+       return ip6_ctl_header == NULL ? -ENOMEM : 0;
+}
+
+static void ip6_frags_sysctl_unregister(void)
+{
+       unregister_net_sysctl_table(ip6_ctl_header);
+}
 #else
-static inline int ip6_frags_sysctl_register(struct net *net)
+static inline int ip6_frags_ns_sysctl_register(struct net *net)
 {
        return 0;
 }
 
-static inline void ip6_frags_sysctl_unregister(struct net *net)
+static inline void ip6_frags_ns_sysctl_unregister(struct net *net)
+{
+}
+
+static inline int ip6_frags_sysctl_register(void)
+{
+       return 0;
+}
+
+static inline void ip6_frags_sysctl_unregister(void)
 {
 }
 #endif
@@ -730,12 +754,12 @@ static int ipv6_frags_init_net(struct net *net)
 
        inet_frags_init_net(&net->ipv6.frags);
 
-       return ip6_frags_sysctl_register(net);
+       return ip6_frags_ns_sysctl_register(net);
 }
 
 static void ipv6_frags_exit_net(struct net *net)
 {
-       ip6_frags_sysctl_unregister(net);
+       ip6_frags_ns_sysctl_unregister(net);
        inet_frags_exit_net(&net->ipv6.frags, &ip6_frags);
 }
 
@@ -752,7 +776,13 @@ int __init ipv6_frag_init(void)
        if (ret)
                goto out;
 
-       register_pernet_subsys(&ip6_frags_ops);
+       ret = ip6_frags_sysctl_register();
+       if (ret)
+               goto err_sysctl;
+
+       ret = register_pernet_subsys(&ip6_frags_ops);
+       if (ret)
+               goto err_pernet;
 
        ip6_frags.hashfn = ip6_hashfn;
        ip6_frags.constructor = ip6_frag_init;
@@ -765,11 +795,18 @@ int __init ipv6_frag_init(void)
        inet_frags_init(&ip6_frags);
 out:
        return ret;
+
+err_pernet:
+       ip6_frags_sysctl_unregister();
+err_sysctl:
+       inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
+       goto out;
 }
 
 void ipv6_frag_exit(void)
 {
        inet_frags_fini(&ip6_frags);
+       ip6_frags_sysctl_unregister();
        unregister_pernet_subsys(&ip6_frags_ops);
        inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
 }