worldstone: add -s for statistical profiling
[minix.git] / sbin / fsck_ext2fs / pass4.c
blobf184e38eca3b4d4ab9235e3792f6d52bffafcb56
1 /* $NetBSD: pass4.c,v 1.10 2009/10/19 18:41:08 bouyer Exp $ */
3 /*
4 * Copyright (c) 1980, 1986, 1993
5 * The Regents of the University of California. All rights reserved.
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.
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.
33 * Copyright (c) 1997 Manuel Bouyer.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
45 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
47 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
48 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
53 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 #include <sys/cdefs.h>
57 #ifndef lint
58 #if 0
59 static char sccsid[] = "@(#)pass4.c 8.1 (Berkeley) 6/5/93";
60 #else
61 __RCSID("$NetBSD: pass4.c,v 1.10 2009/10/19 18:41:08 bouyer Exp $");
62 #endif
63 #endif /* not lint */
65 #include <sys/param.h>
66 #include <sys/time.h>
67 #include <ufs/ext2fs/ext2fs_dinode.h>
68 #include <ufs/ext2fs/ext2fs.h>
69 #include <stdlib.h>
70 #include <string.h>
72 #include "fsutil.h"
73 #include "fsck.h"
74 #include "extern.h"
76 void
77 pass4(void)
79 ino_t inumber;
80 struct zlncnt *zlnp;
81 struct ext2fs_dinode *dp;
82 struct inodesc idesc;
83 int n;
85 memset(&idesc, 0, sizeof(struct inodesc));
86 idesc.id_type = ADDR;
87 idesc.id_func = pass4check;
88 for (inumber = EXT2_ROOTINO; inumber <= lastino; inumber++) {
89 if (inumber < EXT2_FIRSTINO && inumber > EXT2_ROOTINO)
90 continue;
91 idesc.id_number = inumber;
92 switch (statemap[inumber]) {
94 case FSTATE:
95 case DFOUND:
96 n = lncntp[inumber];
97 if (n)
98 adjust(&idesc, (short)n);
99 else {
100 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
101 if (zlnp->zlncnt == inumber) {
102 zlnp->zlncnt = zlnhead->zlncnt;
103 zlnp = zlnhead;
104 zlnhead = zlnhead->next;
105 free((char *)zlnp);
106 clri(&idesc, "UNREF", 1);
107 break;
110 break;
112 case DSTATE:
113 clri(&idesc, "UNREF", 1);
114 break;
116 case DCLEAR:
117 dp = ginode(inumber);
118 if (inosize(dp) == 0) {
119 clri(&idesc, "ZERO LENGTH", 1);
120 break;
122 /* fall through */
123 case FCLEAR:
124 clri(&idesc, "BAD/DUP", 1);
125 break;
127 case USTATE:
128 break;
130 default:
131 errexit("BAD STATE %d FOR INODE I=%llu",
132 statemap[inumber], (unsigned long long)inumber);
138 pass4check(struct inodesc *idesc)
140 struct dups *dlp;
141 int nfrags, res = KEEPON;
142 daddr_t blkno = idesc->id_blkno;
144 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
145 if (chkrange(blkno, 1)) {
146 res = SKIP;
147 } else if (testbmap(blkno)) {
148 for (dlp = duplist; dlp; dlp = dlp->next) {
149 if (dlp->dup != blkno)
150 continue;
151 dlp->dup = duplist->dup;
152 dlp = duplist;
153 duplist = duplist->next;
154 free((char *)dlp);
155 break;
157 if (dlp == 0) {
158 clrbmap(blkno);
159 n_blks--;
163 return (res);