[RFC PATCH v5 18/29] sched/core: Cgroup v2 support

Yuri Andriaccio
2026-04-30T21:39:11Z

From: luca abeni <luca.abeni@santannapisa.it>

Make rt_runtime_us and rt_period_us virtual files accessible also to the
cgroup v2 controller, effectively enabling the RT_GROUP_SCHED mechanism to
cgroups v2.

Signed-off-by: luca abeni <luca.abeni@santannapisa.it>
Signed-off-by: Yuri Andriaccio <yurand2000@gmail.com>
---
kernel/sched/core.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0c7032d254ba..3ffe3ac5071d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10245,6 +10245,18 @@ static struct cftype cpu_files[] = {
.write = cpu_uclamp_max_write,
},
#endif /* CONFIG_UCLAMP_TASK_GROUP */
+#ifdef CONFIG_RT_GROUP_SCHED
+ {
+ .name = "rt_runtime_us",
+ .read_s64 = cpu_rt_runtime_read,
+ .write_s64 = cpu_rt_runtime_write,
+ },
+ {
+ .name = "rt_period_us",
+ .read_u64 = cpu_rt_period_read_uint,
+ .write_u64 = cpu_rt_period_write_uint,
+ },
+#endif /* CONFIG_RT_GROUP_SCHED */
{ } /* terminate */
};

--
2.53.0