diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4c482a3ee87075c4078f89a470abc53e81c206d1..a5c451816fdca003350570aa3139e2f32fbe45f9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -599,6 +599,7 @@ static inline struct address_space *page_mapping(struct page *page)
 {
 	struct address_space *mapping = page->mapping;
 
+	VM_BUG_ON(PageSlab(page));
 	if (unlikely(PageSwapCache(page)))
 		mapping = &swapper_space;
 #ifdef CONFIG_SLUB