sched_ext: Remove switch_class_scx()
Now that put_prev_task_scx() is called with @next on task switches, there's no reason to use sched_class.switch_class(). Rename switch_class_scx() to switch_class() and call it from put_prev_task_scx(). Signed-off-by: Tejun Heo <tj@kernel.org>
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@ -2723,12 +2723,10 @@ preempt_reason_from_class(const struct sched_class *class)
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return SCX_CPU_PREEMPT_UNKNOWN;
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}
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static void switch_class_scx(struct rq *rq, struct task_struct *next)
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static void switch_class(struct rq *rq, struct task_struct *next)
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{
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const struct sched_class *next_class = next->sched_class;
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if (!scx_enabled())
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return;
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#ifdef CONFIG_SMP
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/*
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* Pairs with the smp_load_acquire() issued by a CPU in
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@ -2808,6 +2806,9 @@ static void put_prev_task_scx(struct rq *rq, struct task_struct *p,
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do_enqueue_task(rq, p, 0, -1);
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}
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}
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if (next && next->sched_class != &ext_sched_class)
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switch_class(rq, next);
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}
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static struct task_struct *first_local_task(struct rq *rq)
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@ -3591,8 +3592,6 @@ DEFINE_SCHED_CLASS(ext) = {
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.put_prev_task = put_prev_task_scx,
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.set_next_task = set_next_task_scx,
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.switch_class = switch_class_scx,
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#ifdef CONFIG_SMP
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.select_task_rq = select_task_rq_scx,
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.task_woken = task_woken_scx,
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