diff --git a/include/linux/fs.h b/include/linux/fs.h
index db181b5..ddfff2e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -385,7 +385,7 @@
 	int (*migratepage) (struct address_space *,
 			struct page *, struct page *, enum migrate_mode);
 	int (*launder_page) (struct page *);
-	int (*is_partially_uptodate) (struct page *, read_descriptor_t *,
+	int (*is_partially_uptodate) (struct page *, unsigned long,
 					unsigned long);
 	void (*is_dirty_writeback) (struct page *, bool *, bool *);
 	int (*error_remove_page)(struct address_space *, struct page *);