diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index 05e8b6e4edcb..debcd4bf2295 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -60,6 +60,7 @@ extern unsigned int sysctl_sched_cfs_bandwidth_slice; extern unsigned int sysctl_sched_autogroup_enabled; #endif +extern int sysctl_sched_rr_timeslice; extern int sched_rr_timeslice; extern int sched_rr_handler(struct ctl_table *table, int write, diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 870d802c46f9..c7c7ba8807f8 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8389,8 +8389,9 @@ int sched_rr_handler(struct ctl_table *table, int write, /* make sure that internally we keep jiffies */ /* also, writing zero resets timeslice to default */ if (!ret && write) { - sched_rr_timeslice = sched_rr_timeslice <= 0 ? - RR_TIMESLICE : msecs_to_jiffies(sched_rr_timeslice); + sched_rr_timeslice = + sysctl_sched_rr_timeslice <= 0 ? RR_TIMESLICE : + msecs_to_jiffies(sysctl_sched_rr_timeslice); } mutex_unlock(&mutex); return ret; diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 9ab4d73e9cc9..5034c41a5313 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -9,6 +9,7 @@ #include int sched_rr_timeslice = RR_TIMESLICE; +int sysctl_sched_rr_timeslice = (MSEC_PER_SEC / HZ) * RR_TIMESLICE; static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 34449ec0689d..513e6da318c4 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -426,7 +426,7 @@ static struct ctl_table kern_table[] = { }, { .procname = "sched_rr_timeslice_ms", - .data = &sched_rr_timeslice, + .data = &sysctl_sched_rr_timeslice, .maxlen = sizeof(int), .mode = 0644, .proc_handler = sched_rr_handler,