sched: move the __update_rq_clock() call to scheduler_tick() (546fe3c9) · Commits · 戴 / test

move the __update_rq_clock() call from update_cpu_load() to scheduler_tick(). ( identity transformation that causes no change in functionality. ) this allows the direct use of rq->clock in ->task_tick() functions. Signed-off-by:

Ingo Molnar <mingo@elte.hu>

kernel/sched.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -1949,8 +1949,6 @@ static void update_cpu_load(struct rq *this_rq)
		struct load_stat *ls = &this_rq->ls;
		int i, scale;

		__update_rq_clock(this_rq);

		this_rq->nr_load_updates++;
		if (unlikely(!(sysctl_sched_features & SCHED_FEAT_PRECISE_CPU_LOAD)))
		goto do_avg;
		@@ -3301,6 +3299,7 @@ void scheduler_tick(void)
		struct task_struct *curr = rq->curr;

		spin_lock(&rq->lock);
		__update_rq_clock(rq);
		update_cpu_load(rq);
		if (curr != rq->idle) /* FIXME: needed? */
		curr->sched_class->task_tick(rq, curr);

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