[NET]: Consolidate net namespace related proc files creation.

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

1 files changed, 6 insertions, 25 deletions

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index ecad42b72ad6..eacddb21a9b4 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2018,7 +2018,7 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
 
 #ifdef CONFIG_PROC_FS
 struct unix_iter_state {
-        struct net *net;
+        struct seq_net_private p;
         int i;
 };
 static struct sock *unix_seq_idx(struct unix_iter_state *iter, loff_t pos)
@@ -2027,7 +2027,7 @@ static struct sock *unix_seq_idx(struct unix_iter_state *iter, loff_t pos)
         struct sock *s;
 
         for (s = first_unix_socket(&iter->i); s; s = next_unix_socket(&iter->i, s)) {
-                if (s->sk_net != iter->net)
+                if (s->sk_net != iter->p.net)
                         continue;
                 if (off == pos)
                         return s;
@@ -2054,7 +2054,7 @@ static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos)
                 sk = first_unix_socket(&iter->i);
         else
                 sk = next_unix_socket(&iter->i, sk);
-        while (sk && (sk->sk_net != iter->net))
+        while (sk && (sk->sk_net != iter->p.net))
                 sk = next_unix_socket(&iter->i, sk);
         return sk;
 }
@@ -2118,27 +2118,8 @@ static const struct seq_operations unix_seq_ops = {
 
 static int unix_seq_open(struct inode *inode, struct file *file)
 {
-        struct unix_iter_state *it;
-
-        it = __seq_open_private(file, &unix_seq_ops,
-                                sizeof(struct unix_iter_state));
-        if (it == NULL)
-                return -ENOMEM;
-
-        it->net = get_proc_net(inode);
-        if (it->net == NULL) {
-                seq_release_private(inode, file);
-                return -ENXIO;
-        }
-        return 0;
-}
-
-static int unix_seq_release(struct inode *inode, struct file *file)
-{
-        struct seq_file *seq = file->private_data;
-        struct unix_iter_state *iter = seq->private;
-        put_net(iter->net);
-        return seq_release_private(inode, file);
+        return seq_open_net(inode, file, &unix_seq_ops,
+                            sizeof(struct unix_iter_state));
 }
 
 static const struct file_operations unix_seq_fops = {
@@ -2146,7 +2127,7 @@ static const struct file_operations unix_seq_fops = {
         .open           = unix_seq_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
-        .release        = unix_seq_release,
+        .release        = seq_release_net,
 };
 
 #endif