From a1fd0b9d751f840df23ef0e75b691fc00cfd4743 Mon Sep 17 00:00:00 2001 From: Vitalii Bursov Date: Tue, 30 Apr 2024 18:05:23 +0300 Subject: sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level Change relax_domain_level checks so that it would be possible to include or exclude all domains from newidle balancing. This matches the behavior described in the documentation: -1 no request. use system default or follow request of others. 0 no search. 1 search siblings (hyperthreads in a core). "2" enables levels 0 and 1, level_max excludes the last (level_max) level, and level_max+1 includes all levels. Fixes: 1d3504fcf560 ("sched, cpuset: customize sched domains, core") Signed-off-by: Vitalii Bursov Signed-off-by: Ingo Molnar Tested-by: Dietmar Eggemann Reviewed-by: Vincent Guittot Reviewed-by: Valentin Schneider Link: https://lore.kernel.org/r/bd6de28e80073c79466ec6401cdeae78f0d4423d.1714488502.git.vitaly@bursov.com --- kernel/cgroup/cpuset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/cgroup') diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 4237c8748715..da24187c4e02 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -2948,7 +2948,7 @@ bool current_cpuset_is_being_rebound(void) static int update_relax_domain_level(struct cpuset *cs, s64 val) { #ifdef CONFIG_SMP - if (val < -1 || val >= sched_domain_level_max) + if (val < -1 || val > sched_domain_level_max + 1) return -EINVAL; #endif -- cgit v1.2.3