// For each call, unfreezeServices must be called once.
func unfreezeServices() {
	// We need a lock since we need the 2 atomic values to remain in sync.
	globalServiceFreezeMu.Lock()
	// Close when we reach 0
	globalServiceFreezeCnt--
	if globalServiceFreezeCnt <= 0 {
		// Set to a nil channel.
		var _ch chan struct{}
		if val := globalServiceFreeze.Swap(_ch); val != nil {