static int cgroup_release_agent_show(struct seq_file *seq, void *v)
{
	struct cgroup *cgrp = seq_css(seq)->cgroup;

	spin_lock(&release_agent_path_lock);
	seq_puts(seq, cgrp->root->release_agent_path);
	spin_unlock(&release_agent_path_lock);
	seq_putc(seq, '\n');
	return 0;
}
static int cgroup_release_agent_show(struct seq_file *seq, void *v)
{
	struct cgroup *cgrp = seq_css(seq)->cgroup;

	spin_lock(&release_agent_path_lock);
	seq_puts(seq, cgrp->root->release_agent_path);
	spin_unlock(&release_agent_path_lock);
	seq_putc(seq, '\n');
	return 0;
}