sched: revert recent removal of set_curr_task()

Revert removal of set_curr_task.
Use put_prev_task/set_curr_task when changing groups/policies

Signed-off-by: Srivatsa Vaddagiri < vatsa@linux.vnet.ibm.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index abcb02738d95..66169005f008 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -871,6 +871,7 @@ 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);
 };