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authorViresh Kumar <viresh.kumar@linaro.org>2016-11-15 13:53:21 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-11-16 23:21:08 +0100
commit4a71ce4348bb61740d411822357061f8bf870f4c (patch)
tree36a84d540d82a046205dbceb9021347e3f5cb3bd /kernel/sched
parent8e2ddb03643eb9d0bc4926946d7ce0d308eef0a5 (diff)
cpufreq: schedutil: enable fast switch earlier
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> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/cpufreq_schedutil.c17
1 files changed, 11 insertions, 6 deletions
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 @@ free_sg_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)