[tip: sched/core] sched/debug: Remove unused schedstats
From: tip-bot2 for Shrikanth Hegde
Date: Tue Jun 30 2026 - 05:03:42 EST
The following commit has been merged into the sched/core branch of tip:
Commit-ID: b2463ebf2674ddec62f0f0e63061670bc2c75346
Gitweb: https://git.kernel.org/tip/b2463ebf2674ddec62f0f0e63061670bc2c75346
Author: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>
AuthorDate: Thu, 25 Jun 2026 18:16:25 +05:30
Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Tue, 30 Jun 2026 10:56:57 +02:00
sched/debug: Remove unused schedstats
nr_migrations_cold, nr_wakeups_passive and nr_wakeups_idle are not
being updated anywhere. So remove them.
These are per process stats. So updating sched stats version isn't
necessary.
Signed-off-by: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>
Tested-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>
Link: https://patch.msgid.link/20260625124648.802832-2-sshegde@xxxxxxxxxxxxx
---
include/linux/sched.h | 3 ---
kernel/sched/debug.c | 3 ---
2 files changed, 6 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 12f6335..968b18a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -550,7 +550,6 @@ struct sched_statistics {
s64 exec_max;
u64 slice_max;
- u64 nr_migrations_cold;
u64 nr_failed_migrations_affine;
u64 nr_failed_migrations_running;
u64 nr_failed_migrations_hot;
@@ -563,8 +562,6 @@ struct sched_statistics {
u64 nr_wakeups_remote;
u64 nr_wakeups_affine;
u64 nr_wakeups_affine_attempts;
- u64 nr_wakeups_passive;
- u64 nr_wakeups_idle;
#ifdef CONFIG_SCHED_CORE
u64 core_forceidle_sum;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index c15291c..72236db 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -1442,7 +1442,6 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
P_SCHEDSTAT(wait_count);
PN_SCHEDSTAT(iowait_sum);
P_SCHEDSTAT(iowait_count);
- P_SCHEDSTAT(nr_migrations_cold);
P_SCHEDSTAT(nr_failed_migrations_affine);
P_SCHEDSTAT(nr_failed_migrations_running);
P_SCHEDSTAT(nr_failed_migrations_hot);
@@ -1454,8 +1453,6 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
P_SCHEDSTAT(nr_wakeups_remote);
P_SCHEDSTAT(nr_wakeups_affine);
P_SCHEDSTAT(nr_wakeups_affine_attempts);
- P_SCHEDSTAT(nr_wakeups_passive);
- P_SCHEDSTAT(nr_wakeups_idle);
avg_atom = p->se.sum_exec_runtime;
if (nr_switches)