nilfs_read_inode_common
err = nilfs_read_inode_common(cpfile, raw_inode);
ret = nilfs_read_inode_common(ifile, &cp->cp_ifile_inode);
err = nilfs_read_inode_common(dat, raw_inode);
err = nilfs_read_inode_common(inode, raw_inode);
extern int nilfs_read_inode_common(struct inode *, struct nilfs_inode *);
err = nilfs_read_inode_common(sufile, raw_inode);