Re: [PATCH V2] sched: fix autogroup nice tune on UP

From: Pekka Enberg
Date: Mon Jan 24 2011 - 00:54:13 EST


Hi!

On Mon, Jan 24, 2011 at 7:40 AM, Yong Zhang <yong.zhang0@xxxxxxxxx> wrote:
> +static void update_cfs_shares(struct cfs_rq *cfs_rq, long weight_delta)
> +{
> +       struct task_group *tg;
> +       struct sched_entity *se;
> +
> +       if (!cfs_rq)
> +               return;
> +
> +       tg = cfs_rq->tg;
> +       se = tg->se[0];
> +       if (!se)
> +               return;
> +       if (likely(se->load.weight == tg->shares))
> +               return;
> +       reweight_entity(cfs_rq_of(se), se, tg->shares);
> +}

Wouldn't it be cleaner if we'd separate the shares calculation in a
separate helper function that's just

return tg->shares;

for UP and extract the current logic for the SMP version?
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