sched: add tracepoints related to NUMA task migration

[platform/adaptation/renesas_rcar/renesas_kernel.git] / kernel / sched / fair.c

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b24b6cf..867b0a4 100644 (file)
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1250,11 +1250,15 @@ static int task_numa_migrate(struct task_struct *p)
        p->numa_scan_period = task_scan_min(p);
 
        if (env.best_task == NULL) {
-               int ret = migrate_task_to(p, env.best_cpu);
+               ret = migrate_task_to(p, env.best_cpu);
+               if (ret != 0)
+                       trace_sched_stick_numa(p, env.src_cpu, env.best_cpu);
                return ret;
        }
 
        ret = migrate_swap(p, env.best_task);
+       if (ret != 0)
+               trace_sched_stick_numa(p, env.src_cpu, task_cpu(env.best_task));
        put_task_struct(env.best_task);
        return ret;
 }