if c.spec.PersistentVolume != nil {
		if c.spec.PersistentVolume.Spec.AccessModes == nil {
			klog.V(4).Info(log("mounter.SetupAt WARNING: skipping fsGroup, access modes not provided"))
			return false
		}
		if !hasReadWriteOnce(c.spec.PersistentVolume.Spec.AccessModes) {
			klog.V(4).Info(log("mounter.SetupAt WARNING: skipping fsGroup, only support ReadWriteOnce access mode"))
			return false
		}
		return true