xref: /netbsd-src/sbin/fsck_lfs/pass3.c (revision c13a12500aaa6d753340513de09c058d83c18a59)
1 /* $NetBSD: pass3.c,v 1.13 2013/06/08 02:16:03 dholland Exp $	 */
2 
3 /*
4  * Copyright (c) 1980, 1986, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/param.h>
33 #include <sys/time.h>
34 #include <sys/mount.h>
35 #include <ufs/lfs/lfs.h>
36 #include "fsck.h"
37 #include "extern.h"
38 
39 void
pass3(void)40 pass3(void)
41 {
42 	struct inoinfo **inpp, *inp;
43 	ino_t orphan;
44 	int loopcnt;
45 
46 	for (inpp = &inpsort[inplast - 1]; inpp >= inpsort; inpp--) {
47 		inp = *inpp;
48 		if (inp->i_number == ULFS_ROOTINO || inp->i_number == LFS_IFILE_INUM ||
49 		    !(inp->i_parent == 0 || statemap[inp->i_number] == DSTATE))
50 			continue;
51 		if (statemap[inp->i_number] == DCLEAR)
52 			continue;
53 		if (statemap[inp->i_number] == FCLEAR)
54 			continue;
55 		for (loopcnt = 0;; loopcnt++) {
56 			orphan = inp->i_number;
57 			if (inp->i_parent == 0 ||
58 			    statemap[inp->i_parent] != DSTATE ||
59 			    loopcnt > numdirs)
60 				break;
61 			inp = getinoinfo(inp->i_parent);
62 		}
63 		(void) linkup(orphan, inp->i_dotdot);
64 		inp->i_parent = inp->i_dotdot = lfdir;
65 		lncntp[lfdir]--;
66 		statemap[orphan] = DFOUND;
67 		propagate();
68 	}
69 }
70