diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 4c4a2d4..ce989f1 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -93,6 +93,7 @@
 
 	TTU_IGNORE_MLOCK = (1 << 8),	/* ignore mlock */
 	TTU_IGNORE_ACCESS = (1 << 9),	/* don't age */
+	TTU_IGNORE_HWPOISON = (1 << 10),/* corrupted page is recoverable */
 };
 #define TTU_ACTION(x) ((x) & TTU_ACTION_MASK)