The following commit has been merged into the sched/core branch of tip:
Commit-ID: 17e7170645e34c519443ba63895264bbdee7beee
Gitweb: https://git.kernel.org/tip/17e7170645e34c519443ba63895264bbdee7beee
Author: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
AuthorDate: Wed, 20 Sep 2023 15:00:24 +02:00
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Thu, 21 Sep 2023 08:30:18 +02:00
sched/debug: Remove the /proc/sys/kernel/sched_child_runs_first sysctl
The /proc/sys/kernel/sched_child_runs_first knob is no longer connected since:
5e963f2bd4654 ("sched/fair: Commit to EEVDF")
Remove it.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230920130025.412071-2-bigeasy@xxxxxxxxxxxxx
---
kernel/sched/debug.c | 1 -
kernel/sched/fair.c | 13 -------------
kernel/sched/sched.h | 2 --
3 files changed, 16 deletions(-)
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 4c3d0d9..132dfd1 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -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
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index fcf0c5b..7572000 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -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",
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 7e070dc..9260120 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -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);
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