1 files changed, 8 insertions, 0 deletions

diff --git a/litmus/jobs.c b/litmus/jobs.c
index bc8246572e54..fb093c03d53d 100644
--- a/litmus/jobs.c
+++ b/litmus/jobs.c
@@ -23,6 +23,14 @@ static inline void setup_release(struct task_struct *t, lt_t release)
 void prepare_for_next_period(struct task_struct *t)
 {
         BUG_ON(!t);
+
+        /* Record lateness before we set up the next job's
+         * release and deadline. Lateness may be negative.
+         */
+        t->rt_param.job_params.lateness =
+                (long long)litmus_clock() - 
+                (long long)t->rt_param.job_params.deadline;
+
         setup_release(t, get_release(t) + get_rt_period(t));
 }