xref: /freebsd/sbin/fsck_ffs/pass3.c (revision 952d112864d8008aa87278a30a539d888a8493cd)
1 /*
2  * Copyright (c) 1980, 1986, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 static const char sccsid[] = "@(#)pass3.c	8.2 (Berkeley) 4/27/95";
36 #endif /* not lint */
37 
38 #include <sys/param.h>
39 #include <sys/time.h>
40 
41 #include <ufs/ufs/dinode.h>
42 #include <ufs/ffs/fs.h>
43 
44 #include "fsck.h"
45 
46 void
47 pass3()
48 {
49 	register struct inoinfo **inpp, *inp;
50 	ino_t orphan;
51 	int loopcnt;
52 
53 	for (inpp = &inpsort[inplast - 1]; inpp >= inpsort; inpp--) {
54 		inp = *inpp;
55 		if (inp->i_number == ROOTINO ||
56 		    !(inp->i_parent == 0 || statemap[inp->i_number] == DSTATE))
57 			continue;
58 		if (statemap[inp->i_number] == DCLEAR)
59 			continue;
60 		for (loopcnt = 0; ; loopcnt++) {
61 			orphan = inp->i_number;
62 			if (inp->i_parent == 0 ||
63 			    statemap[inp->i_parent] != DSTATE ||
64 			    loopcnt > numdirs)
65 				break;
66 			inp = getinoinfo(inp->i_parent);
67 		}
68 		(void)linkup(orphan, inp->i_dotdot);
69 		inp->i_parent = inp->i_dotdot = lfdir;
70 		lncntp[lfdir]--;
71 		statemap[orphan] = DFOUND;
72 		propagate();
73 	}
74 }
75