PER_FLAG_NO_TE
child->thread.per_flags &= ~PER_FLAG_NO_TE;
child->thread.per_flags |= PER_FLAG_NO_TE;
if (!machine_has_tx() || (child->thread.per_flags & PER_FLAG_NO_TE))
if (task->thread.per_flags & PER_FLAG_NO_TE)
if (current->thread.per_flags & PER_FLAG_NO_TE)