erofs_inode_fingerprint
struct erofs_inode_fingerprint fingerprint;
struct erofs_inode_fingerprint *fp1 = &EROFS_I(inode)->fingerprint;
struct erofs_inode_fingerprint *fp2 = data;
vi->fingerprint = *(struct erofs_inode_fingerprint *)data;
struct erofs_inode_fingerprint fp;
int erofs_xattr_fill_inode_fingerprint(struct erofs_inode_fingerprint *fp,
int erofs_xattr_fill_inode_fingerprint(struct erofs_inode_fingerprint *fp,