1 files changed, 0 insertions, 33 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 35a8626ace7d..68ed6f4f3c13 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1887,11 +1887,6 @@ enqueue_task(struct rq *rq, struct task_struct *p, int wakeup, bool head)
 
 static void dequeue_task(struct rq *rq, struct task_struct *p, int sleep)
 {
-        if (sleep && p->se.last_wakeup) {
-                update_avg(&p->se.avg_overlap,
-                        p->se.sum_exec_runtime - p->se.last_wakeup);
-                p->se.last_wakeup = 0;
-        }
         sched_info_dequeued(p);
         p->sched_class->dequeue_task(rq, p, sleep);
         p->se.on_rq = 0;
@@ -2452,15 +2447,6 @@ out_activate:
         activate_task(rq, p, 1);
         success = 1;
 
-        /*
-         * Only attribute actual wakeups done by this task.
-         */
-        if (!in_interrupt()) {
-                struct sched_entity *se = &current->se;
-
-                se->last_wakeup = se->sum_exec_runtime;
-        }
-
 out_running:
         trace_sched_wakeup(rq, p, success);
         check_preempt_curr(rq, p, wake_flags);
@@ -2522,8 +2508,6 @@ static void __sched_fork(struct task_struct *p)
         p->se.sum_exec_runtime          = 0;
         p->se.prev_sum_exec_runtime     = 0;
         p->se.nr_migrations             = 0;
-        p->se.last_wakeup               = 0;
-        p->se.avg_overlap               = 0;
 
 #ifdef CONFIG_SCHEDSTATS
         memset(&p->se.statistics, 0, sizeof(p->se.statistics));
@@ -3594,23 +3578,6 @@ static inline void schedule_debug(struct task_struct *prev)
 
 static void put_prev_task(struct rq *rq, struct task_struct *prev)
 {
-        if (prev->state == TASK_RUNNING) {
-                u64 runtime = prev->se.sum_exec_runtime;
-
-                runtime -= prev->se.prev_sum_exec_runtime;
-                runtime = min_t(u64, runtime, 2*sysctl_sched_migration_cost);
-
-                /*
-                 * In order to avoid avg_overlap growing stale when we are
-                 * indeed overlapping and hence not getting put to sleep, grow
-                 * the avg_overlap on preemption.
-                 *
-                 * We use the average preemption runtime because that
-                 * correlates to the amount of cache footprint a task can
-                 * build up.
-                 */
-                update_avg(&prev->se.avg_overlap, runtime);
-        }
         prev->sched_class->put_prev_task(rq, prev);
 }