[RFC PATCH v2 17/25] sched/rt: Remove support for cgroups-v1

[Yuri Andriaccio]

Disable control files for cgroups-v1, and allow only cgroups-v2. This should
simplify maintaining the code, also because cgroups-v1 are deprecated.

Signed-off-by: Yuri Andriaccio <yurand2000@xxxxxxxxx>
---
 kernel/sched/core.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 465f44d7235..85950e10bb1 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10039,20 +10039,6 @@ static struct cftype cpu_legacy_files[] = {
 };
 
 #ifdef CONFIG_RT_GROUP_SCHED
-static struct cftype rt_group_files[] = {
-	{
-		.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,
-	},
-	{ }	/* Terminate */
-};
-
 # ifdef CONFIG_RT_GROUP_SCHED_DEFAULT_DISABLED
 DEFINE_STATIC_KEY_FALSE(rt_group_sched);
 # else
@@ -10078,10 +10064,6 @@ __setup("rt_group_sched=", setup_rt_group_sched);
 
 static int __init cpu_rt_group_init(void)
 {
-	if (!rt_group_sched_enabled())
-		return 0;
-
-	WARN_ON(cgroup_add_legacy_cftypes(&cpu_cgrp_subsys, rt_group_files));
 	return 0;
 }
 subsys_initcall(cpu_rt_group_init);
-- 
2.50.1