fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/namespace.c

@@ -2068,7 +2068,7 @@ struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
  * create_mnt_ns - creates a private namespace and adds a root filesystem
  * @mnt: pointer to the new root filesystem mountpoint
  */
-struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
+static struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
 {
 	struct mnt_namespace *new_ns;
 
@@ -2080,7 +2080,6 @@ struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
 	}
 	return new_ns;
 }
-EXPORT_SYMBOL(create_mnt_ns);
 
 SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
 		char __user *, type, unsigned long, flags, void __user *, data)

fs/nfs/super.c

@@ -2648,21 +2648,13 @@ out_freepage:
 static int nfs_follow_remote_path(struct vfsmount *root_mnt,
 		const char *export_path, struct vfsmount *mnt_target)
 {
-	struct mnt_namespace *ns_private;
 	struct nameidata nd;
 	struct super_block *s;
 	int ret;
 
-	ns_private = create_mnt_ns(root_mnt);
-	ret = PTR_ERR(ns_private);
-	if (IS_ERR(ns_private))
-		goto out_mntput;
-
 	ret = vfs_path_lookup(root_mnt->mnt_root, root_mnt,
 			export_path, LOOKUP_FOLLOW, &nd);
 
-	put_mnt_ns(ns_private);
-
 	if (ret != 0)
 		goto out_err;
 

include/linux/mnt_namespace.h

@@ -23,7 +23,6 @@ struct proc_mounts {
 
 struct fs_struct;
 
-extern struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt);
 extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *,
 		struct fs_struct *);
 extern void put_mnt_ns(struct mnt_namespace *ns);