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Subject[PATCH v2] kernel/sched: Update schedstats when migrating threads
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The kernel manages per-task scheduler statistics or schedstats. Update
function migrate_task_to() to increase the counter for migrations.

Signed-off-by: Carlos Bilbao <carlos.bilbao@amd.com>
---
Changelog:
v2: Update commit message, don't reinitialize sched fields.
---
kernel/sched/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index fcf0c180617c..1360e501c737 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -8751,7 +8751,7 @@ int migrate_task_to(struct task_struct *p, int target_cpu)
if (!cpumask_test_cpu(target_cpu, p->cpus_ptr))
return -EINVAL;

- /* TODO: This is not properly updating schedstats */
+ schedstat_inc(p->stats.nr_migrations_cold);

trace_sched_move_numa(p, curr_cpu, target_cpu);
return stop_one_cpu(curr_cpu, migration_cpu_stop, &arg);
--
2.27.0
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