JFS_LOOKUP
if (flag == JFS_LOOKUP) {
if (flag == JFS_LOOKUP || flag == JFS_REMOVE ||
rc = dtSearch(old_dir, &old_dname, &ino, &btstack, JFS_LOOKUP);
rc = dtSearch(new_dir, &new_dname, &ino, &btstack, JFS_LOOKUP);
rc = dtSearch(dip, &key, &inum, &btstack, JFS_LOOKUP);