From: Viresh Kumar <viresh.kumar@linaro.org>
To: Saravana Kannan <skannan@codeaurora.org>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 4/5] cpufreq: create cpu/cpufreq/policyX directories
Date: Thu, 15 Oct 2015 12:25:03 +0530 [thread overview]
Message-ID: <20151015065503.GB19018@linux> (raw)
In-Reply-To: <561D5B85.4010103@codeaurora.org>
On 13-10-15, 12:29, Saravana Kannan wrote:
> But we don't need to track track of "present-cpus" separately
> though. We could do the for_each_cpu_and() when we create the
> symlinks for the first time. And after that, we can just use the
> subsystem interface callbacks (cpufreq_add_dev() and
> cpufreq_remove_dev()) to keep the symlinks updated.
>
> I don't see any place where keeping track of this separately is more
> efficient. This would save some memory savings when the number of
> CPUs is large and also simplify the code because we won't have to
> keep another field up to date.
It is still required to track when can we free the policy.
--
viresh
next prev parent reply other threads:[~2015-10-15 6:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-11 17:21 [PATCH 0/5] cpufreq: sysfs cleanup Viresh Kumar
2015-10-11 17:21 ` [PATCH 1/5] cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask Viresh Kumar
2015-10-12 19:12 ` Saravana Kannan
2015-10-13 3:23 ` Viresh Kumar
2015-10-13 19:22 ` Saravana Kannan
2015-10-11 17:21 ` [PATCH 2/5] cpufreq: create cpu/cpufreq at boot time Viresh Kumar
2015-10-11 17:21 ` [PATCH 3/5] cpufreq: remove cpufreq_sysfs_{create|remove}_file() Viresh Kumar
2015-10-11 17:21 ` [PATCH 4/5] cpufreq: create cpu/cpufreq/policyX directories Viresh Kumar
2015-10-12 19:31 ` Saravana Kannan
2015-10-13 3:39 ` Viresh Kumar
2015-10-13 19:29 ` Saravana Kannan
2015-10-15 6:55 ` Viresh Kumar [this message]
2015-10-15 19:28 ` Saravana Kannan
2015-10-13 6:15 ` Viresh Kumar
2015-10-13 19:25 ` Saravana Kannan
2015-10-11 17:21 ` [PATCH 5/5] cpufreq: Drop redundant check for inactive policies Viresh Kumar
2015-10-12 19:35 ` Saravana Kannan
2015-10-13 6:05 ` Viresh Kumar
2015-10-11 19:57 ` [PATCH 0/5] cpufreq: sysfs cleanup Doug Smythies
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