__iomap_dio_rw
return __iomap_dio_rw(iocb, iter, &btrfs_dio_iomap_ops, &btrfs_dio_ops,
dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops,
dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops,
EXPORT_SYMBOL_GPL(__iomap_dio_rw);
dio = __iomap_dio_rw(iocb, iter, ops, dops, dio_flags, private,
struct iomap_dio *__iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,