diff mbox

[V2,2/4] cpufreq: schedutil: enable fast switch earlier

Message ID f619f7a474509756c38f6a6b268ace26c3a9df4e.1479197311.git.viresh.kumar@linaro.org
State New
Headers show

Commit Message

Viresh Kumar Nov. 15, 2016, 8:23 a.m. UTC 
The fast_switch_enabled flag will be used by both sugov_policy_alloc()
and sugov_policy_free() with a later patch.

Prepare for that by moving the calls to enable and disable it to the
beginning of sugov_init() and end of sugov_exit().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

---
 kernel/sched/cpufreq_schedutil.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

-- 
2.7.1.410.g6faf27b
diff mbox

Patch

diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 8c4e1652e895..68f21bb6bd44 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -416,9 +416,13 @@  static int sugov_init(struct cpufreq_policy *policy)
 	if (policy->governor_data)
 		return -EBUSY;
 
+	cpufreq_enable_fast_switch(policy);
+
 	sg_policy = sugov_policy_alloc(policy);
-	if (!sg_policy)
-		return -ENOMEM;
+	if (!sg_policy) {
+		ret = -ENOMEM;
+		goto disable_fast_switch;
+	}
 
 	mutex_lock(&global_tunables_lock);
 
@@ -456,8 +460,6 @@  static int sugov_init(struct cpufreq_policy *policy)
 
 out:
 	mutex_unlock(&global_tunables_lock);
-
-	cpufreq_enable_fast_switch(policy);
 	return 0;
 
 fail:
@@ -468,6 +470,10 @@  static int sugov_init(struct cpufreq_policy *policy)
 	mutex_unlock(&global_tunables_lock);
 
 	sugov_policy_free(sg_policy);
+
+disable_fast_switch:
+	cpufreq_disable_fast_switch(policy);
+
 	pr_err("initialization failed (error %d)\n", ret);
 	return ret;
 }
@@ -478,8 +484,6 @@  static void sugov_exit(struct cpufreq_policy *policy)
 	struct sugov_tunables *tunables = sg_policy->tunables;
 	unsigned int count;
 
-	cpufreq_disable_fast_switch(policy);
-
 	mutex_lock(&global_tunables_lock);
 
 	count = gov_attr_set_put(&tunables->attr_set, &sg_policy->tunables_hook);
@@ -490,6 +494,7 @@  static void sugov_exit(struct cpufreq_policy *policy)
 	mutex_unlock(&global_tunables_lock);
 
 	sugov_policy_free(sg_policy);
+	cpufreq_disable_fast_switch(policy);
 }
 
 static int sugov_start(struct cpufreq_policy *policy)