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

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / proc / proc_net.c

diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 0afe21e..cfc4f6c 100644 (file)
--- 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)
 {