ZFS_MOUNTPOINT_NONE
zfs_prop_to_name(ZFS_PROP_MOUNTPOINT), ZFS_MOUNTPOINT_NONE);
strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
if (strcmp(zhp_mountpoint, ZFS_MOUNTPOINT_NONE) == 0) {
if (strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) == 0 ||
if (strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) == 0 ||
if (strcmp(strval, ZFS_MOUNTPOINT_NONE) == 0 ||
if (strcmp(buf, ZFS_MOUNTPOINT_NONE) == 0 ||