Commit 3c3fcb45 authored by Matt Fleming's avatar Matt Fleming Committed by Ingo Molnar
Browse files

sched/fair: Kill the unused 'sched_shares_window_ns' tunable 



The last user of this tunable was removed in 2012 in commit:

  82958366 ("sched: Replace update_shares weight distribution with per-entity computation")

Delete it since its very existence confuses people.

Signed-off-by: default avatarMatt Fleming <matt@codeblueprint.co.uk>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20161019141059.26408-1-matt@codeblueprint.co.uk


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent c3f8f7fa

include/linux/sched/sysctl.h

+0 −1
Original line number Diff line number Diff line
@@ -36,7 +36,6 @@ extern unsigned int sysctl_numa_balancing_scan_size; 
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,

kernel/sched/fair.c

+0 −7
Original line number Diff line number Diff line
@@ -93,13 +93,6 @@ unsigned int normalized_sysctl_sched_wakeup_granularity = 1000000UL; 


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

kernel/sysctl.c

+0 −7
Original line number Diff line number Diff line
@@ -347,13 +347,6 @@ static struct ctl_table kern_table[] = { 
		.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",

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