| Message ID | 20230522145702.2419654-3-lukasz.luba@arm.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | Add basic tracing for uclamp and schedutil | expand |
On Mon, May 22, 2023 at 4:57 PM Lukasz Luba <lukasz.luba@arm.com> wrote: > > Remove the if section block. Use the simple check to bail out > and jump to the unlock at the end. That makes the code more readable > and ready for some future tracing. > > Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> > --- > kernel/sched/cpufreq_schedutil.c | 20 +++++++++++--------- > 1 file changed, 11 insertions(+), 9 deletions(-) > > diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c > index e3211455b203..f462496e5c07 100644 > --- a/kernel/sched/cpufreq_schedutil.c > +++ b/kernel/sched/cpufreq_schedutil.c > @@ -446,17 +446,19 @@ sugov_update_shared(struct update_util_data *hook, u64 time, unsigned int flags) > > ignore_dl_rate_limit(sg_cpu); > > - if (sugov_should_update_freq(sg_policy, time)) { > - next_f = sugov_next_freq_shared(sg_cpu, time); > + if (!sugov_should_update_freq(sg_policy, time)) > + goto unlock; > > - if (!sugov_update_next_freq(sg_policy, time, next_f)) > - goto unlock; > + next_f = sugov_next_freq_shared(sg_cpu, time); > + > + if (!sugov_update_next_freq(sg_policy, time, next_f)) > + goto unlock; > + > + if (sg_policy->policy->fast_switch_enabled) > + cpufreq_driver_fast_switch(sg_policy->policy, next_f); > + else > + sugov_deferred_update(sg_policy); > > - if (sg_policy->policy->fast_switch_enabled) > - cpufreq_driver_fast_switch(sg_policy->policy, next_f); > - else > - sugov_deferred_update(sg_policy); > - } > unlock: > raw_spin_unlock(&sg_policy->update_lock); > } > -- The first patch in the series needs some feedback from the scheduler people, but I can apply this one right away if you want me to.
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index e3211455b203..f462496e5c07 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -446,17 +446,19 @@ sugov_update_shared(struct update_util_data *hook, u64 time, unsigned int flags) ignore_dl_rate_limit(sg_cpu); - if (sugov_should_update_freq(sg_policy, time)) { - next_f = sugov_next_freq_shared(sg_cpu, time); + if (!sugov_should_update_freq(sg_policy, time)) + goto unlock; - if (!sugov_update_next_freq(sg_policy, time, next_f)) - goto unlock; + next_f = sugov_next_freq_shared(sg_cpu, time); + + if (!sugov_update_next_freq(sg_policy, time, next_f)) + goto unlock; + + if (sg_policy->policy->fast_switch_enabled) + cpufreq_driver_fast_switch(sg_policy->policy, next_f); + else + sugov_deferred_update(sg_policy); - if (sg_policy->policy->fast_switch_enabled) - cpufreq_driver_fast_switch(sg_policy->policy, next_f); - else - sugov_deferred_update(sg_policy); - } unlock: raw_spin_unlock(&sg_policy->update_lock); }
Remove the if section block. Use the simple check to bail out and jump to the unlock at the end. That makes the code more readable and ready for some future tracing. Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> --- kernel/sched/cpufreq_schedutil.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-)