sched/core: Use put_prev_task() accessor where possible

Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1410529300.3569.25.camel@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f7c6ed2..5536397 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3033,7 +3033,7 @@
 	if (queued)
 		dequeue_task(rq, p, 0);
 	if (running)
-		p->sched_class->put_prev_task(rq, p);
+		put_prev_task(rq, p);
 
 	/*
 	 * Boosting condition are:
@@ -3586,7 +3586,7 @@
 	if (queued)
 		dequeue_task(rq, p, 0);
 	if (running)
-		p->sched_class->put_prev_task(rq, p);
+		put_prev_task(rq, p);
 
 	prev_class = p->sched_class;
 	__setscheduler(rq, p, attr);
@@ -4792,7 +4792,7 @@
 	if (queued)
 		dequeue_task(rq, p, 0);
 	if (running)
-		p->sched_class->put_prev_task(rq, p);
+		put_prev_task(rq, p);
 
 	p->numa_preferred_nid = nid;
 
@@ -7374,7 +7374,7 @@
 	if (queued)
 		dequeue_task(rq, tsk, 0);
 	if (unlikely(running))
-		tsk->sched_class->put_prev_task(rq, tsk);
+		put_prev_task(rq, tsk);
 
 	tg = container_of(task_css_check(tsk, cpu_cgrp_id,
 				lockdep_is_held(&tsk->sighand->siglock)),