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sched/debug: Remove the /proc/sys/kernel/sched_child_runs_first sysctl

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The /proc/sys/kernel/sched_child_runs_first knob is no longer connected since:

   5e963f2bd4 ("sched/fair: Commit to EEVDF")

Remove it.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230920130025.412071-2-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2023-09-20 15:00:24 +02:00 committed by Ingo Molnar
parent e23edc86b0
commit 17e7170645
3 changed files with 0 additions and 16 deletions
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1
kernel/sched/debug.c
View File

@ -864,7 +864,6 @@ static void sched_debug_header(struct seq_file *m)
#define PN(x) \
SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x))
PN(sysctl_sched_base_slice);
P(sysctl_sched_child_runs_first);
P(sysctl_sched_features);
#undef PN
#undef P

13
kernel/sched/fair.c
View File

@ -78,12 +78,6 @@ unsigned int sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_LOG;
unsigned int sysctl_sched_base_slice = 750000ULL;
static unsigned int normalized_sysctl_sched_base_slice = 750000ULL;
/*
* After fork, child runs first. If set to 0 (default) then
* parent will (try to) run first.
*/
unsigned int sysctl_sched_child_runs_first __read_mostly;
const_debug unsigned int sysctl_sched_migration_cost = 500000UL;
int sched_thermal_decay_shift;
@ -145,13 +139,6 @@ static unsigned int sysctl_numa_balancing_promote_rate_limit = 65536;
#ifdef CONFIG_SYSCTL
static struct ctl_table sched_fair_sysctls[] = {
{
.procname = "sched_child_runs_first",
.data = &sysctl_sched_child_runs_first,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
#ifdef CONFIG_CFS_BANDWIDTH
{
.procname = "sched_cfs_bandwidth_slice_us",

2
kernel/sched/sched.h
View File

@ -100,8 +100,6 @@ extern __read_mostly int scheduler_running;
extern unsigned long calc_load_update;
extern atomic_long_t calc_load_tasks;
extern unsigned int sysctl_sched_child_runs_first;
extern void calc_global_load_tick(struct rq *this_rq);
extern long calc_load_fold_active(struct rq *this_rq, long adjust);