From 17e7170645e34c519443ba63895264bbdee7beee Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Wed, 20 Sep 2023 15:00:24 +0200 Subject: [PATCH] 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 Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20230920130025.412071-2-bigeasy@linutronix.de --- 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 4c3d0d9f3db63..132dfd1e6f475 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 fcf0c5bc8b478..75720008fdd21 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 7e070dcf70747..9260120ed2a5c 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); -- 2.30.2