| Message ID | 35e572d9-1152-406a-9e34-2525f7548af9@arm.com |
|---|---|
| State | New |
| Headers | show |
| Series | sched/cpufreq: Ensure sd is rebuilt for EAS check | expand |
On Sat, Nov 9, 2024 at 1:24 AM Christian Loehle <christian.loehle@arm.com> wrote: > > Ensure sugov_eas_rebuild_sd() is always called when sugov_init() > succeeds. The out goto initialized sugov without forcing the rebuild. > > Previously the missing call to sugov_eas_rebuild_sd() could lead to EAS > not being enabled on boot when it should have been, because it requires > all policies to be controlled by schedutil while they might not have > been initialized yet. > > Fixes: e7a1b32e43b1 ("cpufreq: Rebuild sched-domains when removing cpufreq driver") > Signed-off-by: Christian Loehle <christian.loehle@arm.com> > --- > kernel/sched/cpufreq_schedutil.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c > index c6ba15388ea7..28c77904ea74 100644 > --- a/kernel/sched/cpufreq_schedutil.c > +++ b/kernel/sched/cpufreq_schedutil.c > @@ -783,9 +783,8 @@ static int sugov_init(struct cpufreq_policy *policy) > if (ret) > goto fail; > > - sugov_eas_rebuild_sd(); > - > out: > + sugov_eas_rebuild_sd(); > mutex_unlock(&global_tunables_lock); > return 0; > > -- Applied as 6.13 material, thanks!
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index c6ba15388ea7..28c77904ea74 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -783,9 +783,8 @@ static int sugov_init(struct cpufreq_policy *policy) if (ret) goto fail; - sugov_eas_rebuild_sd(); - out: + sugov_eas_rebuild_sd(); mutex_unlock(&global_tunables_lock); return 0;
Ensure sugov_eas_rebuild_sd() is always called when sugov_init() succeeds. The out goto initialized sugov without forcing the rebuild. Previously the missing call to sugov_eas_rebuild_sd() could lead to EAS not being enabled on boot when it should have been, because it requires all policies to be controlled by schedutil while they might not have been initialized yet. Fixes: e7a1b32e43b1 ("cpufreq: Rebuild sched-domains when removing cpufreq driver") Signed-off-by: Christian Loehle <christian.loehle@arm.com> --- kernel/sched/cpufreq_schedutil.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)