diff --git a/mm/vmscan.c b/mm/vmscan.c
index bf47784..c857943 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -673,6 +673,8 @@
 static void page_check_dirty_writeback(struct page *page,
 				       bool *dirty, bool *writeback)
 {
+	struct address_space *mapping;
+
 	/*
 	 * Anonymous pages are not handled by flushers and must be written
 	 * from reclaim context. Do not stall reclaim based on them
@@ -686,6 +688,14 @@
 	/* By default assume that the page flags are accurate */
 	*dirty = PageDirty(page);
 	*writeback = PageWriteback(page);
+
+	/* Verify dirty/writeback state if the filesystem supports it */
+	if (!page_has_private(page))
+		return;
+
+	mapping = page_mapping(page);
+	if (mapping && mapping->a_ops->is_dirty_writeback)
+		mapping->a_ops->is_dirty_writeback(page, dirty, writeback);
 }
 
 /*