diff --git a/mm/truncate.c b/mm/truncate.c
index 3a29a61..90f3a97 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -312,20 +312,27 @@ void truncate_inode_pages(struct address_space *mapping, loff_t lstart)
EXPORT_SYMBOL(truncate_inode_pages);
/**
- * invalidate_mapping_pages - Invalidate all the unlocked pages of one inode
+ * __invalidate_mapping_pages - Invalidate all the unlocked pages of one inode
* @mapping: the address_space which holds the pages to invalidate
* @start: the offset 'from' which to invalidate
* @end: the offset 'to' which to invalidate (inclusive)
+ * @force: always drop pages when true (otherwise, reduce cache eligibility)