i_uid_low
i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
raw_inode->i_uid_low = cpu_to_le16(fs_high2lowuid(uid));
raw_inode->i_uid_low = cpu_to_le16(low_16_bits(i_uid));
raw_inode->i_uid_low = cpu_to_le16(fs_high2lowuid(i_uid));
i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);