Merge branch 'auto-ftrace-next' into tracing/for-linus

[sfrench/cifs-2.6.git] / kernel / sched_fair.c

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 9bcc0030a58bccb9df0555dce052dbb8f21ec8ef..f2aa987027d695750f2ca4b8f917d02171eeb3b8 100644 (file)
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -726,21 +726,6 @@ enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int wakeup)
                __enqueue_entity(cfs_rq, se);
 }
 
-static void update_avg(u64 *avg, u64 sample)
-{
-       s64 diff = sample - *avg;
-       *avg += diff >> 3;
-}
-
-static void update_avg_stats(struct cfs_rq *cfs_rq, struct sched_entity *se)
-{
-       if (!se->last_wakeup)
-               return;
-
-       update_avg(&se->avg_overlap, se->sum_exec_runtime - se->last_wakeup);
-       se->last_wakeup = 0;
-}
-
 static void
 dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int sleep)
 {
@@ -751,7 +736,6 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int sleep)
 
        update_stats_dequeue(cfs_rq, se);
        if (sleep) {
-               update_avg_stats(cfs_rq, se);
 #ifdef CONFIG_SCHEDSTATS
                if (entity_is_task(se)) {
                        struct task_struct *tsk = task_of(se);
@@ -921,7 +905,7 @@ static void hrtick_start_fair(struct rq *rq, struct task_struct *p)
                hrtick_start(rq, delta, requeue);
        }
 }
-#else
+#else /* !CONFIG_SCHED_HRTICK */
 static inline void
 hrtick_start_fair(struct rq *rq, struct task_struct *p)
 {
@@ -1062,7 +1046,7 @@ static int wake_idle(int cpu, struct task_struct *p)
        }
        return cpu;
 }
-#else
+#else /* !ARCH_HAS_SCHED_WAKE_IDLE*/
 static inline int wake_idle(int cpu, struct task_struct *p)
 {
        return cpu;
@@ -1196,9 +1180,9 @@ wake_affine(struct rq *rq, struct sched_domain *this_sd, struct rq *this_rq,
         * a reasonable amount of time then attract this newly
         * woken task:
         */
-       if (sync && balanced && curr->sched_class == &fair_sched_class) {
+       if (sync && balanced) {
                if (curr->se.avg_overlap < sysctl_sched_migration_cost &&
-                               p->se.avg_overlap < sysctl_sched_migration_cost)
+                   p->se.avg_overlap < sysctl_sched_migration_cost)
                        return 1;
        }
 
@@ -1359,7 +1343,6 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
                return;
        }
 
-       se->last_wakeup = se->sum_exec_runtime;
        if (unlikely(se == pse))
                return;
 
@@ -1586,7 +1569,7 @@ move_one_task_fair(struct rq *this_rq, int this_cpu, struct rq *busiest,
 
        return 0;
 }
-#endif
+#endif /* CONFIG_SMP */
 
 /*
  * scheduler tick hitting a task of our scheduling class: