hfsplus_find_attr
err = hfsplus_find_attr(sb, inode->i_ino, name, &fd);
err = hfsplus_find_attr(dir->i_sb, cnid, NULL, &fd);
int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name,
res = hfsplus_find_attr(inode->i_sb, inode->i_ino, name, &fd);
err = hfsplus_find_attr(inode->i_sb, inode->i_ino, NULL, &fd);