diff --git a/mm/vmscan.c b/mm/vmscan.c
index 93ba337..21d417c 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1055,8 +1055,14 @@
 
 			/* Adding to swap updated mapping */
 			mapping = page_mapping(page);
+		} else if (unlikely(PageTransHuge(page))) {
+			/* Split file THP */
+			if (split_huge_page_to_list(page, page_list))
+				goto keep_locked;
 		}
 
+		VM_BUG_ON_PAGE(PageTransHuge(page), page);
+
 		/*
 		 * The page is mapped into the page tables of one or more
 		 * processes. Try to unmap it here.