sched/smp: Use the SMP version of wake_up_new_task()

Simplify the scheduler by making CONFIG_SMP=y code in wake_up_new_task()
unconditional.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Shrikanth Hegde <sshegde@linux.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20250528080924.2273858-26-mingo@kernel.org

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 82b7cdb353d886568de228430fdb2e0268e7c809..c108b5c2e1151dc7634389f24853ec0d88ad7172 100644 (file)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4824,7 +4824,6 @@ void wake_up_new_task(struct task_struct *p)
        activate_task(rq, p, ENQUEUE_NOCLOCK | ENQUEUE_INITIAL);
        trace_sched_wakeup_new(p);
        wakeup_preempt(rq, p, wake_flags);
-#ifdef CONFIG_SMP
        if (p->sched_class->task_woken) {
                /*
                 * Nothing relies on rq->lock after this, so it's fine to
@@ -4834,7 +4833,6 @@ void wake_up_new_task(struct task_struct *p)
                p->sched_class->task_woken(rq, p);
                rq_repin_lock(rq, &rf);
        }
-#endif
        task_rq_unlock(rq, p, &rf);
 }