kthread_park
kthread_park(task);
err += kthread_park(threads[i]);
kthread_park(thread->tsk);
kthread_park(qca->spi_thread);
kthread_park(w->task);
kthread_park(fs_info->cleaner_kthread);
kthread_park(mp->m_zone_info->zi_gc_thread);
kthread_park(zi->zi_gc_thread);
int kthread_park(struct task_struct *k);
kthread_park(st->thread);
EXPORT_SYMBOL_GPL(kthread_park);
kthread_park(rdp->nocb_cb_kthread);
kthread_park(t);
kthread_park(tsk);
kthread_park(tsk);
kthread_park(stopper->thread);