sched: rework enqueue/dequeue_entity() to get rid of set_curr_task()

rework enqueue/dequeue_entity() to get rid of 
sched_class::set_curr_task(). This simplifies sched_setscheduler(), 
rt_mutex_setprio() and sched_move_tasks().

   text    data     bss     dec     hex filename
  24330    2734      20   27084    69cc sched.o.before
  24233    2730      20   26983    6967 sched.o.after

Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 66169005f008..abcb02738d95 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -871,7 +871,6 @@ struct sched_class {
                         struct sched_domain *sd, enum cpu_idle_type idle,
                         int *all_pinned, int *this_best_prio);
 
-        void (*set_curr_task) (struct rq *rq);
         void (*task_tick) (struct rq *rq, struct task_struct *p);
         void (*task_new) (struct rq *rq, struct task_struct *p);
 };