From d1f3667faa908a76aeb6e54f38b1e1d4b2a3ce2b Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Wed, 19 Oct 2016 15:10:59 +0100 Subject: [PATCH 01/92] sched/fair: Kill the unused 'sched_shares_window_ns' tunable The last user of this tunable was removed in 2012 in commit: 82958366cfea ("sched: Replace update_shares weight distribution with per-entity computation") Delete it since its very existence confuses people. Signed-off-by: Matt Fleming Cc: Dietmar Eggemann Cc: Linus Torvalds Cc: Mike Galbraith Cc: Paul Turner Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20161019141059.26408-1-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar (cherry picked from commit 3c3fcb45d524feb5d14a14f332e3eec7f2aff8f3) Signed-off-by: Gaku Inami --- include/linux/sched/sysctl.h | 1 - kernel/sched/fair.c | 7 ------- kernel/sysctl.c | 7 ------- 3 files changed, 15 deletions(-) diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index 22db1e6..4411453 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -36,7 +36,6 @@ enum sched_tunable_scaling { extern unsigned int sysctl_sched_migration_cost; extern unsigned int sysctl_sched_nr_migrate; extern unsigned int sysctl_sched_time_avg; -extern unsigned int sysctl_sched_shares_window; int sched_proc_update_handler(struct ctl_table *table, int write, void __user *buffer, size_t *length, diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c242944..3cf446c 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -93,13 +93,6 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling const_debug unsigned int sysctl_sched_migration_cost = 500000UL; -/* - * The exponential sliding window over which load is averaged for shares - * distribution. - * (default: 10msec) - */ -unsigned int __read_mostly sysctl_sched_shares_window = 10000000UL; - #ifdef CONFIG_CFS_BANDWIDTH /* * Amount of runtime to allocate from global (tg) to local (per-cfs_rq) pool diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 706309f..739fb17 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -347,13 +347,6 @@ static int sysrq_sysctl_handler(struct ctl_table *table, int write, .mode = 0644, .proc_handler = proc_dointvec, }, - { - .procname = "sched_shares_window_ns", - .data = &sysctl_sched_shares_window, - .maxlen = sizeof(unsigned int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, #ifdef CONFIG_SCHEDSTATS { .procname = "sched_schedstats", -- 1.9.1