linux-kernel - Re: [PATCH 02/11] sched: remove rq->cpu_load[load

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Message-ID: <20140225162252.GA13532@linux.vnet.ibm.com>
Date:	Tue, 25 Feb 2014 21:52:52 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Alex Shi <alex.shi@...aro.org>
Cc:	mingo@...hat.com, peterz@...radead.org, morten.rasmussen@....com,
	vincent.guittot@...aro.org, daniel.lezcano@...aro.org,
	fweisbec@...il.com, linux@....linux.org.uk, tony.luck@...el.com,
	fenghua.yu@...el.com, james.hogan@...tec.com, jason.low2@...com,
	viresh.kumar@...aro.org, hanjun.guo@...aro.org,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	akpm@...ux-foundation.org, arjan@...ux.intel.com, pjt@...gle.com,
	fengguang.wu@...el.com, linaro-kernel@...ts.linaro.org,
	wangyun@...ux.vnet.ibm.com, mgorman@...e.de
Subject: Re: [PATCH 02/11] sched: remove rq->cpu_load[load_idx] array

>  
> -/**
> - * get_sd_load_idx - Obtain the load index for a given sched domain.
> - * @sd: The sched_domain whose load_idx is to be obtained.
> - * @idle: The idle status of the CPU for whose sd load_idx is obtained.
> - *
> - * Return: The load index.
> - */
> -static inline int get_sd_load_idx(struct sched_domain *sd,
> -					enum cpu_idle_type idle)
> -{
> -	int load_idx;
> -
> -	switch (idle) {
> -	case CPU_NOT_IDLE:
> -		load_idx = sd->busy_idx;
> -		break;
> -
> -	case CPU_NEWLY_IDLE:
> -		load_idx = sd->newidle_idx;
> -		break;
> -	default:
> -		load_idx = sd->idle_idx;
> -		break;
> -	}
> -
> -	return load_idx;
> -}
> -

Since the last caller to get_sd_load_idx(), does it make sense to remove
the function definition for get_sd_load_idx() in the previous patch itself?

Or

> @@ -5903,13 +5868,11 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
>  	struct sched_domain *child = env->sd->child;
>  	struct sched_group *sg = env->sd->groups;
>  	struct sg_lb_stats tmp_sgs;
> -	int load_idx, prefer_sibling = 0;
> +	int prefer_sibling = 0;
>  
>  	if (child && child->flags & SD_PREFER_SIBLING)
>  		prefer_sibling = 1;
>  
> -	load_idx = 0;
> -
>  	do {
>  		struct sg_lb_stats *sgs = &tmp_sgs;
>  		int local_group;


The single line change in the previous patch gets removed here so why
not club them.

-- 
Thanks and Regards
Srikar Dronamraju

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