Re: [PATCH v11 1/5] sched/core: uclamp: Extend CPU's cgroup controller

[Tejun Heo]

Hello, Patrick.

On Mon, Jul 08, 2019 at 09:43:53AM +0100, Patrick Bellasi wrote:
> +static inline void cpu_uclamp_print(struct seq_file *sf,
> +				    enum uclamp_id clamp_id)
> +{
> +	struct task_group *tg;
> +	u64 util_clamp;
> +	u64 percent;
> +	u32 rem;
> +
> +	rcu_read_lock();
> +	tg = css_tg(seq_css(sf));
> +	util_clamp = tg->uclamp_req[clamp_id].value;
> +	rcu_read_unlock();
> +
> +	if (util_clamp == SCHED_CAPACITY_SCALE) {
> +		seq_puts(sf, "max\n");
> +		return;
> +	}
> +
> +	percent = uclamp_percent_from_scale(util_clamp);
> +	percent = div_u64_rem(percent, 100, &rem);
> +	seq_printf(sf, "%llu.%u\n", percent, rem);

"%llu.%02u" otherwise 20.01 gets printed as 20.1

Thanks.

-- 
tejun