[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>
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 0afe21e..cfc4f6c 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -22,10 +22,48 @@
#include <linux/mount.h>
#include <linux/nsproxy.h>
#include <net/net_namespace.h>
+#include <linux/seq_file.h>
#include "internal.h"
+int seq_open_net(struct inode *ino, struct file *f,
+ const struct seq_operations *ops, int size)
+{
+ struct net *net;
+ struct seq_net_private *p;
+
+ BUG_ON(size < sizeof(*p));
+
+ net = get_proc_net(ino);
+ if (net == NULL)
+ return -ENXIO;
+
+ p = __seq_open_private(f, ops, size);
+ if (p == NULL) {
+ put_net(net);
+ return -ENOMEM;
+ }
+ p->net = net;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(seq_open_net);
+
+int seq_release_net(struct inode *ino, struct file *f)
+{
+ struct seq_file *seq;
+ struct seq_net_private *p;
+
+ seq = f->private_data;
+ p = seq->private;
+
+ put_net(p->net);
+ seq_release_private(ino, f);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(seq_release_net);
+
+
struct proc_dir_entry *proc_net_fops_create(struct net *net,
const char *name, mode_t mode, const struct file_operations *fops)
{