diff --git a/include/linux/sched.h b/include/linux/sched.h
index 38a3f4b..ea41513 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -386,6 +386,9 @@
 		(mm)->hiwater_vm = (mm)->total_vm;	\
 } while (0)
 
+#define get_mm_hiwater_rss(mm)	max((mm)->hiwater_rss, get_mm_rss(mm))
+#define get_mm_hiwater_vm(mm)	max((mm)->hiwater_vm, (mm)->total_vm)
+
 extern void set_dumpable(struct mm_struct *mm, int value);
 extern int get_dumpable(struct mm_struct *mm);