[IPV6][NETNS]: Display per-net info in sockstat6 file.

Do with the sockstat6 file what we've already done for the sockstat. 
Same good side effect - ipv6 reassembling stats are now shown per-net.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 34 insertions, 7 deletions

diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 562366015e54..ca8b82f96fe5 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -35,16 +35,18 @@ static struct proc_dir_entry *proc_net_devsnmp6;
 
 static int sockstat6_seq_show(struct seq_file *seq, void *v)
 {
+        struct net *net = seq->private;
+
         seq_printf(seq, "TCP6: inuse %d\n",
-                       sock_prot_inuse_get(&init_net, &tcpv6_prot));
+                       sock_prot_inuse_get(net, &tcpv6_prot));
         seq_printf(seq, "UDP6: inuse %d\n",
-                       sock_prot_inuse_get(&init_net, &udpv6_prot));
+                       sock_prot_inuse_get(net, &udpv6_prot));
         seq_printf(seq, "UDPLITE6: inuse %d\n",
-                        sock_prot_inuse_get(&init_net, &udplitev6_prot));
+                        sock_prot_inuse_get(net, &udplitev6_prot));
         seq_printf(seq, "RAW6: inuse %d\n",
-                       sock_prot_inuse_get(&init_net, &rawv6_prot));
+                       sock_prot_inuse_get(net, &rawv6_prot));
         seq_printf(seq, "FRAG6: inuse %d memory %d\n",
-                       ip6_frag_nqueues(&init_net), ip6_frag_mem(&init_net));
+                       ip6_frag_nqueues(net), ip6_frag_mem(net));
         return 0;
 }
 
@@ -183,7 +185,32 @@ static int snmp6_seq_show(struct seq_file *seq, void *v)
 
 static int sockstat6_seq_open(struct inode *inode, struct file *file)
 {
-        return single_open(file, sockstat6_seq_show, NULL);
+        int err;
+        struct net *net;
+
+        err = -ENXIO;
+        net = get_proc_net(inode);
+        if (net == NULL)
+                goto err_net;
+
+        err = single_open(file, sockstat6_seq_show, net);
+        if (err < 0)
+                goto err_open;
+
+        return 0;
+
+err_open:
+        put_net(net);
+err_net:
+        return err;
+}
+
+static int sockstat6_seq_release(struct inode *inode, struct file *file)
+{
+        struct net *net = ((struct seq_file *)file->private_data)->private;
+
+        put_net(net);
+        return single_release(inode, file);
 }
 
 static const struct file_operations sockstat6_seq_fops = {
@@ -191,7 +218,7 @@ static const struct file_operations sockstat6_seq_fops = {
         .open    = sockstat6_seq_open,
         .read    = seq_read,
         .llseek  = seq_lseek,
-        .release = single_release,
+        .release = sockstat6_seq_release,
 };
 
 static int snmp6_seq_open(struct inode *inode, struct file *file)