int __cgroup_task_count(const struct cgroup *cgrp)
{
	int count = 0;
	struct cgrp_cset_link *link;

	lockdep_assert_held(&css_set_lock);

	list_for_each_entry(link, &cgrp->cset_links, cset_link)
		count += link->cset->nr_tasks;

	return count;
}
int __cgroup_task_count(const struct cgroup *cgrp)
{
	int count = 0;
	struct cgrp_cset_link *link;

	lockdep_assert_held(&css_set_lock);

	list_for_each_entry(link, &cgrp->cset_links, cset_link)
		count += link->cset->nr_tasks;

	return count;
}