linux-kernel - Re: [PATCH] Cpufreq: Change sysfs interface cpuinfo_cur

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Message-ID: <CAKohponvz8CjDpMbx=BXpBv5q8d4x94No90sJWjVsTRS_Uj1jw@mail.gmail.com>
Date:	Mon, 25 Nov 2013 10:00:42 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Lan Tianyu <tianyu.lan@...el.com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>, hg197@....de,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Cpufreq: Change sysfs interface cpuinfo_cur_freq access privilege

On 25 November 2013 08:23, Lan Tianyu <tianyu.lan@...el.com> wrote:
> Currently, cpuinfo_cur_freq is only accessible for root user while
> other cpufreq sysfs interfaces(E,G scaling_cur_freq) are available
> to ordinary user. This seems make no sense. This patch is to change
> it.

There is nothing wrong with the code and so this is more of a design
change..

Probably Rafael can help us here as cpufreq_cur_freq will read stuff
directly from hardware instead of using cached value in software.

--
viresh
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