sched: add CONFIG_SMP consistency
a patch from Henrik Austad did this:
>> Do not declare select_task_rq as part of sched_class when CONFIG_SMP is
>> not set.
Peter observed:
> While a proper cleanup, could you do it by re-arranging the methods so
> as to not create an additional ifdef?
Do not declare select_task_rq and some other methods as part of sched_class
when CONFIG_SMP is not set.
Also gather those methods to avoid CONFIG_SMP mess.
Idea-by: Henrik Austad <henrik.austad@gmail.com>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Henrik Austad <henrik@austad.us>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched_idletask.c b/kernel/sched_idletask.c
index dec4cca..8a21a2e 100644
--- a/kernel/sched_idletask.c
+++ b/kernel/sched_idletask.c
@@ -105,9 +105,6 @@
/* dequeue is not valid, we print a debug message there: */
.dequeue_task = dequeue_task_idle,
-#ifdef CONFIG_SMP
- .select_task_rq = select_task_rq_idle,
-#endif /* CONFIG_SMP */
.check_preempt_curr = check_preempt_curr_idle,
@@ -115,6 +112,8 @@
.put_prev_task = put_prev_task_idle,
#ifdef CONFIG_SMP
+ .select_task_rq = select_task_rq_idle,
+
.load_balance = load_balance_idle,
.move_one_task = move_one_task_idle,
#endif