be_unmount_callback
if (zfs_iter_filesystems(zhp, be_unmount_callback, ud)) {
if ((ret = zfs_iter_filesystems(zone_zhp, be_unmount_callback,
if ((zret = zfs_iter_filesystems(zhp, be_unmount_callback,
static int be_unmount_callback(zfs_handle_t *, void *);