sched: mark scheduling classes as const

mark scheduling classes as const. The speeds up the code
a bit and shrinks it:

   text    data     bss     dec     hex filename
  40027    4018     292   44337    ad31 sched.o.before
  40190    3842     292   44324    ad24 sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index e1d5f1c8b532..dbe4d8cf80d6 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -225,7 +225,8 @@ static void set_curr_task_rt(struct rq *rq)
         p->se.exec_start = rq->clock;
 }
 
-static struct sched_class rt_sched_class __read_mostly = {
+const struct sched_class rt_sched_class = {
+        .next                   = &fair_sched_class,
         .enqueue_task           = enqueue_task_rt,
         .dequeue_task           = dequeue_task_rt,
         .yield_task             = yield_task_rt,