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-rw-r--r--kernel/sched/fair.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index bc34e355a453..1ad929bceb92 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7598,6 +7598,10 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
if (throttled_lb_pair(task_group(p), env->src_cpu, env->dst_cpu))
return 0;
+ /* Disregard pcpu kthreads; they are where they need to be. */
+ if ((p->flags & PF_KTHREAD) && kthread_is_per_cpu(p))
+ return 0;
+
if (!cpumask_test_cpu(env->dst_cpu, p->cpus_ptr)) {
int cpu;