2 files changed, 5 insertions, 1 deletions

diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 14376ebf4bac..416d4e4ce94e 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -23,6 +23,9 @@ struct pid_namespace {
         struct kmem_cache *pid_cachep;
         int level;
         struct pid_namespace *parent;
+#ifdef CONFIG_PROC_FS
+        struct vfsmount *proc_mnt;
+#endif
 };
 
 extern struct pid_namespace init_pid_ns;
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index dbd601c7244c..cbc1038c7900 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -125,7 +125,8 @@ extern struct proc_dir_entry *create_proc_entry(const char *name, mode_t mode,
 extern void remove_proc_entry(const char *name, struct proc_dir_entry *parent);
 
 extern struct vfsmount *proc_mnt;
-extern int proc_fill_super(struct super_block *,void *,int);
+struct pid_namespace;
+extern int proc_fill_super(struct super_block *);
 extern struct inode *proc_get_inode(struct super_block *, unsigned int, struct proc_dir_entry *);
 
 /*