return err
	}
	// Perform a bind mount to the full path to allow duplicate mounts of the same disk.
	options := []string{"bind"}
	if b.readOnly {
		options = append(options, "ro")
	}
	mountOptions := util.JoinMountOptions(options, b.mountOptions)
	err = mounter.MountSensitiveWithoutSystemd(globalPDPath, volPath, "", mountOptions, nil)
	if err != nil {
		klog.Errorf("Failed to bind mount: source:%s, target:%s, err:%v", globalPDPath, volPath, err)

		// new iface name is <target portal>:<volume name>
		b.iscsiDisk.Iface = b.iscsiDisk.Portals[0] + ":" + b.iscsiDisk.VolName
	}
	globalPDPath := manager.MakeGlobalPDName(*b.iscsiDisk)
	mountOptions := util.JoinMountOptions(b.mountOptions, options)
	err = mounter.MountSensitiveWithoutSystemd(globalPDPath, volPath, "", mountOptions, nil)
	if err != nil {
		klog.Errorf("Failed to bind mount: source:%s, target:%s, err:%v", globalPDPath, volPath, err)

			moList := strings.Split(mo, ",")
			return JoinMountOptions(moList, options)
		}

		if len(pv.Spec.MountOptions) > 0 {
			return JoinMountOptions(pv.Spec.MountOptions, options)
		}
	}

	return options
}

// JoinMountOptions joins mount options eliminating duplicates
func JoinMountOptions(userOptions []string, systemOptions []string) []string {

		return err
	}
	source := fmt.Sprintf("%s:%s", nfsMounter.server, nfsMounter.exportPath)
	options := []string{}
	if nfsMounter.readOnly {
		options = append(options, "ro")
	}
	mountOptions := util.JoinMountOptions(nfsMounter.mountOptions, options)
	err = nfsMounter.mounter.MountSensitiveWithoutSystemd(source, dir, "nfs", mountOptions, nil)
	if err != nil {
		notMnt, mntErr := mount.IsNotMountPoint(nfsMounter.mounter, dir)

		}
	}
	// Perform a bind mount to the full path to allow duplicate mounts of the same volume.
	options := []string{"bind"}
	if m.readOnly {
		options = append(options, "ro")
	}
	mountOptions := util.JoinMountOptions(options, m.mountOptions)

	klog.V(4).Infof("attempting to mount %s", dir)
	globalPath := util.MakeAbsolutePath(runtime.GOOS, m.globalPath)