1 files changed, 4 insertions, 0 deletions

diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 70587657dda..d3c61b4ebef 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -28,6 +28,8 @@ int res_counter_charge_locked(struct res_counter *counter, unsigned long val)
         }
 
         counter->usage += val;
+        if (counter->usage > counter->max_usage)
+                counter->max_usage = counter->usage;
         return 0;
 }
 
@@ -66,6 +68,8 @@ res_counter_member(struct res_counter *counter, int member)
         switch (member) {
         case RES_USAGE:
                 return &counter->usage;
+        case RES_MAX_USAGE:
+                return &counter->max_usage;
         case RES_LIMIT:
                 return &counter->limit;
         case RES_FAILCNT: