From: dirk.brandewie@gmail.com
To: linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org
Cc: Dirk Brandewie <dirk.j.brandewie@intel.com>
Subject: [PATCH 4/6] cpufreq_stats: Do not track policies without associated governors.
Date: Fri, 1 Feb 2013 10:45:41 -0800 [thread overview]
Message-ID: <1359744343-18690-8-git-send-email-dirk.brandewie@gmail.com> (raw)
In-Reply-To: <1359744343-18690-1-git-send-email-dirk.brandewie@gmail.com>
From: Dirk Brandewie <dirk.j.brandewie@intel.com>
Scaling drivers that implement internal governors do not have governor
sturctures associated with them. Do not create/remove statisitcs
entries for polices that do not have governors associated with them.
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
---
drivers/cpufreq/cpufreq_stats.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 9d7732b..8a1daf4 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -183,7 +183,7 @@ static void cpufreq_stats_free_table(unsigned int cpu)
static void cpufreq_stats_free_sysfs(unsigned int cpu)
{
struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
- if (policy && policy->cpu == cpu)
+ if (policy && policy->cpu == cpu && policy->governor)
sysfs_remove_group(&policy->kobj, &stats_attr_group);
if (policy)
cpufreq_cpu_put(policy);
@@ -271,6 +271,8 @@ static int cpufreq_stat_notifier_policy(struct notifier_block *nb,
unsigned int cpu = policy->cpu;
if (val != CPUFREQ_NOTIFY)
return 0;
+ if (!policy->governor)
+ return 0;
table = cpufreq_frequency_get_table(cpu);
if (!table)
return 0;
--
1.7.7.6
next prev parent reply other threads:[~2013-02-01 18:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-01 18:45 [PATCH 0/6] Add P state driver for Intel Core Processors dirk.brandewie
2013-02-01 18:45 ` [PATCH 1/6] cpufreq: Retrieve current frequency from scaling drivers with internal governors dirk.brandewie
2013-02-01 18:45 ` [PATCH 2/6] cpufreq: Only query drivers that implement cpufreq_driver.target() dirk.brandewie
2013-02-02 3:22 ` Viresh Kumar
2013-02-01 18:45 ` dirk.brandewie
2013-02-01 18:45 ` [PATCH 3/6] cpufreq: Do not track governor name for scaling drivers with internal governors dirk.brandewie
2013-02-02 3:25 ` Viresh Kumar
[not found] ` <CANOOhLSSXPuLG5X=TCfThjwcR3GuR=Z-O5qmY4StJZzg+Er5tA@mail.gmail.com>
2013-02-02 5:54 ` Viresh Kumar
2013-02-01 18:45 ` dirk.brandewie
2013-02-01 18:45 ` [PATCH 4/6] cpufreq_stats: Do not track policies without associated governors dirk.brandewie
2013-02-02 5:38 ` Viresh Kumar
2013-02-01 18:45 ` dirk.brandewie [this message]
2013-02-01 18:45 ` [PATCH 5/6] cpufreq: balance out cpufreq_cpu_{get,put} for scaling drivers using setpolicy dirk.brandewie
2013-02-02 5:41 ` Viresh Kumar
2013-02-04 18:25 ` Dirk Brandewie
2013-02-05 7:03 ` Viresh Kumar
2013-02-01 18:45 ` [PATCH 6/6] cpufreq/x86: Add P-state driver for sandy bridge dirk.brandewie
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