1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index afcaac66cbd5..a9c0b7d26303 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -256,6 +256,16 @@ extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
 #define dec_mm_counter(mm, member) (mm)->_##member--
 #define get_mm_rss(mm) ((mm)->_file_rss + (mm)->_anon_rss)
 
+#define update_hiwater_rss(mm)  do {                    \
+        unsigned long _rss = get_mm_rss(mm);            \
+        if ((mm)->hiwater_rss < _rss)                   \
+                (mm)->hiwater_rss = _rss;               \
+} while (0)
+#define update_hiwater_vm(mm)   do {                    \
+        if ((mm)->hiwater_vm < (mm)->total_vm)          \
+                (mm)->hiwater_vm = (mm)->total_vm;      \
+} while (0)
+
 typedef unsigned long mm_counter_t;
 
 struct mm_struct {