diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index e4697539b..a6f7c26fb 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -1035,6 +1035,11 @@ void hugetlb_unregister_node(struct node *node);
  */
 bool is_raw_hwpoison_page_in_hugepage(struct page *page);
 
+static inline unsigned long huge_page_mask_align(struct file *file)
+{
+	return PAGE_MASK & ~huge_page_mask(hstate_file(file));
+}
+
 #else	/* CONFIG_HUGETLB_PAGE */
 struct hstate {};