attr_is_frame_compressed
err = attr_is_frame_compressed(ni, attr_b, vcn >> NTFS_LZNT_CUNIT,
err = attr_is_frame_compressed(ni, attr_b, frame, &clst_data, run);
err = attr_is_frame_compressed(ni, attr, frame, &clst_data,
int attr_is_frame_compressed(struct ntfs_inode *ni, struct ATTRIB *attr,