linux-kernel - Re: [PATCH v3 1/2] cpufreq: ondemand: Refactor frequency increase code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1264635421.16916.461.camel@localhost.localdomain>
Date:	Wed, 27 Jan 2010 15:37:01 -0800
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	Mike Chan <mike@...roid.com>
Cc:	Dave Jones <davej@...hat.com>, Thomas Renninger <trenn@...e.de>,
	Tejun Heo <tj@...nel.org>,
	Alexander Miller <Miller@....uni-stuttgart.de>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/2] cpufreq: ondemand: Refactor frequency increase
 code


Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>

On Tue, 2010-01-26 at 17:06 -0800, Mike Chan wrote:
> Make simpler to read and call.
> 
> *** v3 - Always call when powersave_bias is enabled.
> 
> Signed-off-by: Mike Chan <mike@...roid.com>
> ---
>  drivers/cpufreq/cpufreq_ondemand.c |   25 ++++++++++++-------------
>  1 files changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
> index 4b34ade..516d0fe 100644
> --- a/drivers/cpufreq/cpufreq_ondemand.c
> +++ b/drivers/cpufreq/cpufreq_ondemand.c
> @@ -443,6 +443,17 @@ static struct attribute_group dbs_attr_group_old = {
>  
>  /************************** sysfs end ************************/
>  
> +static void dbs_freq_increase(struct cpufreq_policy *p, unsigned int freq)
> +{
> +	if (dbs_tuners_ins.powersave_bias)
> +		freq = powersave_bias_target(p, freq, CPUFREQ_RELATION_H);
> +	else if (p->cur == p->max)
> +		return;
> +
> +	__cpufreq_driver_target(p, freq, dbs_tuners_ins.powersave_bias ?
> +			CPUFREQ_RELATION_L : CPUFREQ_RELATION_H);
> +}
> +
>  static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
>  {
>  	unsigned int max_load_freq;
> @@ -520,19 +531,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info)
>  
>  	/* Check for frequency increase */
>  	if (max_load_freq > dbs_tuners_ins.up_threshold * policy->cur) {
> -		/* if we are already at full speed then break out early */
> -		if (!dbs_tuners_ins.powersave_bias) {
> -			if (policy->cur == policy->max)
> -				return;
> -
> -			__cpufreq_driver_target(policy, policy->max,
> -				CPUFREQ_RELATION_H);
> -		} else {
> -			int freq = powersave_bias_target(policy, policy->max,
> -					CPUFREQ_RELATION_H);
> -			__cpufreq_driver_target(policy, freq,
> -				CPUFREQ_RELATION_L);
> -		}
> +		dbs_freq_increase(policy, policy->max);
>  		return;
>  	}
>  


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/