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authorVitalii Bursov <vitaly@bursov.com>2024-04-30 18:05:24 +0300
committerIngo Molnar <mingo@kernel.org>2024-05-17 09:48:25 +0200
commit287372fa39f579a61e17b000aa74c8418d230528 (patch)
tree0bb1c2510b536a3a56c67e7f4de176101c226589 /kernel/sched/debug.c
parenta1fd0b9d751f840df23ef0e75b691fc00cfd4743 (diff)
sched/debug: Dump domains' level
Knowing domain's level exactly can be useful when setting relax_domain_level or cpuset.sched_relax_domain_level Usage: cat /debug/sched/domains/cpu0/domain1/level to dump cpu0 domain1's level. SDM macro is not used because sd->level is 'int' and it would hide the type mismatch between 'int' and 'u32'. Signed-off-by: Vitalii Bursov <vitaly@bursov.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Acked-by: Vincent Guittot <vincent.guittot@linaro.org> Reviewed-by: Valentin Schneider <vschneid@redhat.com> Link: https://lore.kernel.org/r/9489b6475f6dd6fbc67c617752d4216fa094da53.1714488502.git.vitaly@bursov.com
Diffstat (limited to 'kernel/sched/debug.c')
-rw-r--r--kernel/sched/debug.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 8d5d98a5834d..c1eb9a1afd13 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -425,6 +425,7 @@ static void register_sd(struct sched_domain *sd, struct dentry *parent)
debugfs_create_file("flags", 0444, parent, &sd->flags, &sd_flags_fops);
debugfs_create_file("groups_flags", 0444, parent, &sd->groups->flags, &sd_flags_fops);
+ debugfs_create_u32("level", 0444, parent, (u32 *)&sd->level);
}
void update_sched_domain_debugfs(void)