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 __FBSDID("$FreeBSD$"); 39 40 #include <sys/param.h> 41 42 #include <ufs/ufs/dinode.h> 43 #include <ufs/ffs/fs.h> 44 45 #include <err.h> 46 #include <stdint.h> 47 #include <string.h> 48 49 #include "fsck.h" 50 51 void 52 pass4(void) 53 { 54 ino_t inumber; 55 union dinode *dp; 56 struct inodesc idesc; 57 int i, n, cg; 58 59 memset(&idesc, 0, sizeof(struct inodesc)); 60 idesc.id_type = ADDR; 61 idesc.id_func = pass4check; 62 for (cg = 0; cg < sblock.fs_ncg; cg++) { 63 if (got_siginfo) { 64 printf("%s: phase 4: cyl group %d of %d (%d%%)\n", 65 cdevname, cg, sblock.fs_ncg, 66 cg * 100 / sblock.fs_ncg); 67 got_siginfo = 0; 68 } 69 if (got_sigalarm) { 70 setproctitle("%s p4 %d%%", cdevname, 71 cg * 100 / sblock.fs_ncg); 72 got_sigalarm = 0; 73 } 74 inumber = cg * sblock.fs_ipg; 75 for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) { 76 if (inumber < UFS_ROOTINO) 77 continue; 78 idesc.id_number = inumber; 79 switch (inoinfo(inumber)->ino_state) { 80 81 case FZLINK: 82 case DZLINK: 83 if (inoinfo(inumber)->ino_linkcnt == 0) { 84 clri(&idesc, "UNREF", 1); 85 break; 86 } 87 /* fall through */ 88 89 case FSTATE: 90 case DFOUND: 91 n = inoinfo(inumber)->ino_linkcnt; 92 if (n) { 93 adjust(&idesc, (short)n); 94 break; 95 } 96 break; 97 98 case DSTATE: 99 clri(&idesc, "UNREF", 1); 100 break; 101 102 case DCLEAR: 103 /* if on snapshot, already cleared */ 104 if (cursnapshot != 0) 105 break; 106 dp = ginode(inumber); 107 if (DIP(dp, di_size) == 0) { 108 clri(&idesc, "ZERO LENGTH", 1); 109 break; 110 } 111 /* fall through */ 112 case FCLEAR: 113 clri(&idesc, "BAD/DUP", 1); 114 break; 115 116 case USTATE: 117 break; 118 119 default: 120 errx(EEXIT, "BAD STATE %d FOR INODE I=%ju", 121 inoinfo(inumber)->ino_state, 122 (uintmax_t)inumber); 123 } 124 } 125 } 126 } 127 128 int 129 pass4check(struct inodesc *idesc) 130 { 131 struct dups *dlp; 132 int nfrags, res = KEEPON; 133 ufs2_daddr_t blkno = idesc->id_blkno; 134 135 for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { 136 if (chkrange(blkno, 1)) { 137 res = SKIP; 138 } else if (testbmap(blkno)) { 139 for (dlp = duplist; dlp; dlp = dlp->next) { 140 if (dlp->dup != blkno) 141 continue; 142 dlp->dup = duplist->dup; 143 dlp = duplist; 144 duplist = duplist->next; 145 free((char *)dlp); 146 break; 147 } 148 if (dlp == NULL) { 149 clrbmap(blkno); 150 n_blks--; 151 } 152 } 153 } 154 return (res); 155 } 156