Re: [PATCH 07/15] sched/smp: Use lag to simplify cross-runqueue placement

[Sebastian Andrzej Siewior]

On 2023-05-31 13:58:46 [+0200], Peter Zijlstra wrote:
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -12492,22 +12440,9 @@ static void task_fork_fair(struct task_s
>  
>  	cfs_rq = task_cfs_rq(current);
>  	curr = cfs_rq->curr;
> -	if (curr) {
> +	if (curr)
>  		update_curr(cfs_rq);
> -		se->vruntime = curr->vruntime;
> -	}
>  	place_entity(cfs_rq, se, 1);
> -
> -	if (sysctl_sched_child_runs_first && curr && entity_before(curr, se)) {

Since the removal of sysctl_sched_child_runs_first there is no user of
this anymore. There is still the sysctl file sched_child_runs_first with
no functionality.
Is this intended or should it be removed?

…
>  	rq_unlock(rq, &rf);
>  }

Sebastian