css_has_online_children
bool css_has_online_children(struct cgroup_subsys_state *css);
!css_has_online_children(&cgrp->self) && !cgroup_is_dead(cgrp))
if (css_has_online_children(&cgrp->self))
!css_has_online_children(&css->cgroup->self));
if (css_has_online_children(&devcgroup->css))
if (css_has_online_children(&devcgroup->css))