if !sys.Initialized() {
		err = errServerNotInitialized
		return
	}

	userOrGroup := r.User
	var isGroup bool
	if userOrGroup == "" {
		isGroup = true
		userOrGroup = r.Group
	}

	if isGroup {
		_, err = sys.GetGroupDescription(userOrGroup)
		if err != nil {
			return
		}
	} else {
		var isTemp bool

- Apply fsGroup policy for ReadWriteOncePod volumes ([#128244](https://github.com/kubernetes/kubernetes/pull/128244), [@gnufied](https://github.com/gnufied)) [SIG Storage and Testing]