struct ext4_dir_entry_2 *ext4_init_dot_dotdot(struct inode *inode,
			  struct ext4_dir_entry_2 *de,
			  int blocksize, int csum_size,
			  unsigned int parent_ino, int dotdot_real_len)
{
	de->inode = cpu_to_le32(inode->i_ino);
	de->name_len = 1;
	de->rec_len = ext4_rec_len_to_disk(EXT4_DIR_REC_LEN(de->name_len),
					   blocksize);
	strcpy(de->name, ".");
	ext4_set_de_type(inode->i_sb, de, S_IFDIR);

	de = ext4_next_entry(de, blocksize);
	de->inode = cpu_to_le32(parent_ino);
	de->name_len = 2;
	if (!dotdot_real_len)
		de->rec_len = ext4_rec_len_to_disk(blocksize -
					(csum_size + EXT4_DIR_REC_LEN(1)),
					blocksize);
	else
		de->rec_len = ext4_rec_len_to_disk(
				EXT4_DIR_REC_LEN(de->name_len), blocksize);
	strcpy(de->name, "..");
	ext4_set_de_type(inode->i_sb, de, S_IFDIR);

	return ext4_next_entry(de, blocksize);
}