netns: move /proc/net/dev_snmp6 to struct net

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 15 insertions, 9 deletions

diff --git a/include/net/netns/mib.h b/include/net/netns/mib.h
index 449147604642..ffcef5de3d1d 100644
--- a/include/net/netns/mib.h
+++ b/include/net/netns/mib.h
@@ -11,6 +11,10 @@ struct netns_mib {
         DEFINE_SNMP_STAT(struct udp_mib, udplite_statistics);
         DEFINE_SNMP_STAT(struct icmp_mib, icmp_statistics);
         DEFINE_SNMP_STAT(struct icmpmsg_mib, icmpmsg_statistics);
+
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        struct proc_dir_entry *proc_net_devsnmp6;
+#endif
 };
 
 #endif
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 0179b66864f1..16ebf85d4ad2 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -29,8 +29,6 @@
 #include <net/transp_v6.h>
 #include <net/ipv6.h>
 
-static struct proc_dir_entry *proc_net_devsnmp6;
-
 static int sockstat6_seq_show(struct seq_file *seq, void *v)
 {
         struct net *net = seq->private;
@@ -210,18 +208,20 @@ static const struct file_operations snmp6_seq_fops = {
 int snmp6_register_dev(struct inet6_dev *idev)
 {
         struct proc_dir_entry *p;
+        struct net *net;
 
         if (!idev || !idev->dev)
                 return -EINVAL;
 
-        if (!net_eq(dev_net(idev->dev), &init_net))
+        net = dev_net(idev->dev);
+        if (!net_eq(net, &init_net))
                 return 0;
 
-        if (!proc_net_devsnmp6)
+        if (!net->mib.proc_net_devsnmp6)
                 return -ENOENT;
 
         p = proc_create_data(idev->dev->name, S_IRUGO,
-                             proc_net_devsnmp6, &snmp6_seq_fops, idev);
+                             net->mib.proc_net_devsnmp6, &snmp6_seq_fops, idev);
         if (!p)
                 return -ENOMEM;
 
@@ -231,12 +231,13 @@ int snmp6_register_dev(struct inet6_dev *idev)
 
 int snmp6_unregister_dev(struct inet6_dev *idev)
 {
-        if (!proc_net_devsnmp6)
+        struct net *net = dev_net(idev->dev);
+        if (!net->mib.proc_net_devsnmp6)
                 return -ENOENT;
         if (!idev || !idev->stats.proc_dir_entry)
                 return -EINVAL;
         remove_proc_entry(idev->stats.proc_dir_entry->name,
-                          proc_net_devsnmp6);
+                          net->mib.proc_net_devsnmp6);
         idev->stats.proc_dir_entry = NULL;
         return 0;
 }
@@ -269,8 +270,9 @@ int __init ipv6_misc_proc_init(void)
         if (!proc_net_fops_create(&init_net, "snmp6", S_IRUGO, &snmp6_seq_fops))
                 goto proc_snmp6_fail;
 
-        proc_net_devsnmp6 = proc_mkdir("dev_snmp6", init_net.proc_net);
-        if (!proc_net_devsnmp6)
+        init_net.mib.proc_net_devsnmp6 =
+                proc_mkdir("dev_snmp6", init_net.proc_net);
+        if (!init_net.mib.proc_net_devsnmp6)
                 goto proc_dev_snmp6_fail;
 out:
         return rc;