TASK_FROZEN
TASK_DEAD | TASK_WAKING | TASK_FROZEN))
if ((tsk_state & TASK_RTLOCK_WAIT) || (tsk_state & TASK_FROZEN))
WRITE_ONCE(p->__state, TASK_FROZEN);
return TASK_FROZEN;
wake_up_state(p, TASK_FROZEN);
return READ_ONCE(p->__state) & TASK_FROZEN;
WRITE_ONCE(current->__state, TASK_FROZEN);
(state & (TASK_WAKEKILL | TASK_NOLOAD | TASK_FROZEN)))
WARN_ON_ONCE(!wait_task_inactive(child, __TASK_TRACED|TASK_FROZEN)))
!(task_state & TASK_FROZEN);