ocfs2_find_entry
status = ocfs2_find_entry(name, namelen, inode, lookup);
ret = ocfs2_find_entry(name, namelen, dir, &lookup);
int ocfs2_find_entry(const char *name, int namelen,
status = ocfs2_find_entry(old_dentry->d_name.name,
status = ocfs2_find_entry(name, strlen(name), orphan_dir_inode,