1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
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 #if 0
33 #ifndef lint
34 static const char sccsid[] = "@(#)pass4.c 8.4 (Berkeley) 4/28/95";
35 #endif /* not lint */
36 #endif
37 #include <sys/cdefs.h>
38 #include <sys/param.h>
39 #include <sys/stat.h>
40
41 #include <ufs/ufs/dinode.h>
42 #include <ufs/ffs/fs.h>
43
44 #include <err.h>
45 #include <stdint.h>
46 #include <string.h>
47
48 #include "fsck.h"
49
50 void
pass4(void)51 pass4(void)
52 {
53 ino_t inumber;
54 struct inode ip;
55 struct inodesc idesc;
56 int i, n, cg;
57
58 memset(&idesc, 0, sizeof(struct inodesc));
59 idesc.id_func = freeblock;
60 for (cg = 0; cg < sblock.fs_ncg; cg++) {
61 if (got_siginfo) {
62 printf("%s: phase 4: cyl group %d of %d (%d%%)\n",
63 cdevname, cg, sblock.fs_ncg,
64 cg * 100 / sblock.fs_ncg);
65 got_siginfo = 0;
66 }
67 if (got_sigalarm) {
68 setproctitle("%s p4 %d%%", cdevname,
69 cg * 100 / sblock.fs_ncg);
70 got_sigalarm = 0;
71 }
72 inumber = cg * sblock.fs_ipg;
73 for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) {
74 if (inumber < UFS_ROOTINO)
75 continue;
76 idesc.id_number = inumber;
77 idesc.id_type = inoinfo(inumber)->ino_idtype;
78 switch (inoinfo(inumber)->ino_state) {
79
80 case FZLINK:
81 case DZLINK:
82 if (inoinfo(inumber)->ino_linkcnt == 0) {
83 clri(&idesc, "UNREF", 1);
84 break;
85 }
86 /* fall through */
87
88 case FSTATE:
89 case DFOUND:
90 n = inoinfo(inumber)->ino_linkcnt;
91 if (n) {
92 adjust(&idesc, (short)n);
93 break;
94 }
95 break;
96
97 case DSTATE:
98 clri(&idesc, "UNREF", 1);
99 break;
100
101 case DCLEAR:
102 /* if on snapshot, already cleared */
103 if (cursnapshot != 0)
104 break;
105 ginode(inumber, &ip);
106 if (DIP(ip.i_dp, di_size) == 0) {
107 clri(&idesc, "ZERO LENGTH", 1);
108 irelse(&ip);
109 break;
110 }
111 irelse(&ip);
112 /* fall through */
113 case FCLEAR:
114 clri(&idesc, "BAD/DUP", 1);
115 break;
116
117 case USTATE:
118 break;
119
120 default:
121 errx(EEXIT, "BAD STATE %d FOR INODE I=%ju",
122 inoinfo(inumber)->ino_state,
123 (uintmax_t)inumber);
124 }
125 }
126 }
127 }
128