/* 1. Determine hierarchy */
if ((r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 0, ¤t)) < 0) {
log_error("Cannot determine cgroup we are running in: %s", strerror(-r));
/* 1. Determine hierarchy */
if ((r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 0, ¤t)) < 0) {
log_error("Cannot determine cgroup we are running in: %s", strerror(-r));