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| author | Chris Redpath <chris.redpath@arm.com> | 2017-05-25 15:06:27 +0100 |
|---|---|---|
| committer | Andres Oportus <andresoportus@google.com> | 2017-07-18 18:13:58 +0000 |
| commit | ceed1eb2b409d74ca694cbf4cdee536476a280c8 (patch) | |
| tree | 49e050112227ef6a41baf349f6840607a963fe17 /kernel/sched | |
| parent | bab9c2fbe48e9ebe6af7fa19ade1bf558dcc2eac (diff) | |
UPSTREAM: 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>
(cherry picked from commit 4a71ce4348bb61740d411822357061f8bf870f4c)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Change-Id: Ia174f423ca02d59360657ac2e77a5098ce5cf99c
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/cpufreq_schedutil.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index ff9da5144d8a..de24e1983614 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -578,9 +578,13 @@ 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; + } ret = sugov_kthread_create(sg_policy); if (ret) @@ -625,8 +629,6 @@ static int sugov_init(struct cpufreq_policy *policy) out: mutex_unlock(&global_tunables_lock); - - cpufreq_enable_fast_switch(policy); return 0; fail: @@ -640,6 +642,10 @@ 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; } @@ -650,8 +656,6 @@ static int 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); @@ -664,6 +668,7 @@ static int sugov_exit(struct cpufreq_policy *policy) sugov_kthread_stop(sg_policy); sugov_policy_free(sg_policy); + cpufreq_disable_fast_switch(policy); return 0; } |