1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 89cd308cc7a5..471e36d30123 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1409,6 +1409,8 @@ struct task_struct {
         int curr_ret_stack;
         /* Stack of return addresses for return function tracing */
         struct ftrace_ret_stack *ret_stack;
+        /* time stamp for last schedule */
+        unsigned long long ftrace_timestamp;
         /*
          * Number of functions that haven't been traced
          * because of depth overrun.