Including the full path is always useful.
Also use PID_FMT in one more place.
if (r > 0 && streq(controller, SYSTEMD_CGROUP_CONTROLLER)) {
r = cg_attach(SYSTEMD_CGROUP_CONTROLLER_LEGACY, path, pid);
if (r < 0)
if (r > 0 && streq(controller, SYSTEMD_CGROUP_CONTROLLER)) {
r = cg_attach(SYSTEMD_CGROUP_CONTROLLER_LEGACY, path, pid);
if (r < 0)
- log_warning_errno(r, "Failed to attach %d to compat systemd cgroup %s: %m", pid, path);
+ log_warning_errno(r, "Failed to attach "PID_FMT" to compat systemd cgroup %s: %m", pid, path);