diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 687fb11..4115d6a 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -131,6 +131,7 @@
  */
 extern rwlock_t vmlist_lock;
 extern struct vm_struct *vmlist;
+extern __init void vm_area_add_early(struct vm_struct *vm);
 extern __init void vm_area_register_early(struct vm_struct *vm, size_t align);
 
 #ifdef CONFIG_SMP