@@ -23,15 +23,6 @@ enum sched_tunable_scaling {
SCHED_TUNABLESCALING_END,
};
-/*
- * control realtime throttling:
- *
- * /proc/sys/kernel/sched_rt_period_us
- * /proc/sys/kernel/sched_rt_runtime_us
- */
-extern unsigned int sysctl_sched_rt_period;
-extern int sysctl_sched_rt_runtime;
-
extern unsigned int sysctl_sched_dl_period_max;
extern unsigned int sysctl_sched_dl_period_min;
@@ -48,8 +39,6 @@ extern int sched_rr_timeslice;
int sched_rr_handler(struct ctl_table *table, int write, void *buffer,
size_t *lenp, loff_t *ppos);
-int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
- size_t *lenp, loff_t *ppos);
int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
size_t *lenp, loff_t *ppos);
int sysctl_schedstats(struct ctl_table *table, int write, void *buffer,
@@ -80,12 +80,6 @@ const_debug unsigned int sysctl_sched_nr_migrate = 8;
const_debug unsigned int sysctl_sched_nr_migrate = 32;
#endif
-/*
- * period over which we measure -rt task CPU usage in us.
- * default: 1s
- */
-unsigned int sysctl_sched_rt_period = 1000000;
-
__read_mostly int scheduler_running;
#ifdef CONFIG_SCHED_CORE
@@ -379,13 +373,6 @@ sched_core_dequeue(struct rq *rq, struct task_struct *p, int flags) { }
#endif /* CONFIG_SCHED_CORE */
-/*
- * part of the period that we allow rt tasks to run in us.
- * default: 0.95s
- */
-int sysctl_sched_rt_runtime = 950000;
-
-
/*
* Serialization rules:
*
@@ -16,6 +16,47 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun);
struct rt_bandwidth def_rt_bandwidth;
+/*
+ * period over which we measure -rt task CPU usage in us.
+ * default: 1s
+ */
+unsigned int sysctl_sched_rt_period = 1000000;
+
+/*
+ * part of the period that we allow rt tasks to run in us.
+ * default: 0.95s
+ */
+int sysctl_sched_rt_runtime = 950000;
+
+static int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
+ size_t *lenp, loff_t *ppos);
+#ifdef CONFIG_SYSCTL
+static struct ctl_table sched_rt_sysctls[] = {
+ {
+ .procname = "sched_rt_period_us",
+ .data = &sysctl_sched_rt_period,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_rt_handler,
+ },
+ {
+ .procname = "sched_rt_runtime_us",
+ .data = &sysctl_sched_rt_runtime,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = sched_rt_handler,
+ },
+ {}
+};
+
+static void __init sched_rt_sysctl_init(void)
+{
+ register_sysctl_init("kernel", sched_rt_sysctls);
+}
+#else
+#define sched_rt_sysctl_init() do { } while (0)
+#endif
+
static enum hrtimer_restart sched_rt_period_timer(struct hrtimer *timer)
{
struct rt_bandwidth *rt_b =
@@ -2471,6 +2512,7 @@ void __init init_sched_rt_class(void)
zalloc_cpumask_var_node(&per_cpu(local_cpu_mask, i),
GFP_KERNEL, cpu_to_node(i));
}
+ sched_rt_sysctl_init();
}
#endif /* CONFIG_SMP */
@@ -2928,7 +2970,7 @@ static void sched_rt_do_global(void)
raw_spin_unlock_irqrestore(&def_rt_bandwidth.rt_runtime_lock, flags);
}
-int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
+static int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
size_t *lenp, loff_t *ppos)
{
int old_period, old_runtime;
@@ -100,6 +100,10 @@ extern void calc_global_load_tick(struct rq *this_rq);
extern long calc_load_fold_active(struct rq *this_rq, long adjust);
extern void call_trace_sched_update_nr_running(struct rq *rq, int count);
+
+extern unsigned int sysctl_sched_rt_period;
+extern int sysctl_sched_rt_runtime;
+
/*
* Helpers for converting nanosecond timing to jiffy resolution
*/
@@ -1692,20 +1692,6 @@ static struct ctl_table kern_table[] = {
.extra2 = SYSCTL_ONE,
},
#endif /* CONFIG_NUMA_BALANCING */
- {
- .procname = "sched_rt_period_us",
- .data = &sysctl_sched_rt_period,
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = sched_rt_handler,
- },
- {
- .procname = "sched_rt_runtime_us",
- .data = &sysctl_sched_rt_runtime,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = sched_rt_handler,
- },
{
.procname = "sched_deadline_period_max_us",
.data = &sysctl_sched_dl_period_max,
move rt_period/runtime sysctls to rt.c and use the new register_sysctl_init() to register the sysctl interface. Signed-off-by: Zhen Ni <nizhen@uniontech.com> --- include/linux/sched/sysctl.h | 11 --------- kernel/sched/core.c | 13 ----------- kernel/sched/rt.c | 44 +++++++++++++++++++++++++++++++++++- kernel/sched/sched.h | 4 ++++ kernel/sysctl.c | 14 ------------ 5 files changed, 47 insertions(+), 39 deletions(-)