pass4.c revision 41474
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 341558Srgrimes#ifndef lint 3523675Speterstatic const char sccsid[] = "@(#)pass4.c 8.4 (Berkeley) 4/28/95"; 361558Srgrimes#endif /* not lint */ 371558Srgrimes 381558Srgrimes#include <sys/param.h> 3941474Sjulian#include <sys/time.h> 4023675Speter 411558Srgrimes#include <ufs/ufs/dinode.h> 4241474Sjulian#include <ufs/ffs/fs.h> 4323675Speter 4423675Speter#include <err.h> 451558Srgrimes#include <string.h> 4623675Speter 471558Srgrimes#include "fsck.h" 481558Srgrimes 497585Sbdevoid 501558Srgrimespass4() 511558Srgrimes{ 521558Srgrimes register ino_t inumber; 531558Srgrimes register struct zlncnt *zlnp; 541558Srgrimes struct dinode *dp; 551558Srgrimes struct inodesc idesc; 5641474Sjulian int i, n, cg; 571558Srgrimes 5823675Speter memset(&idesc, 0, sizeof(struct inodesc)); 591558Srgrimes idesc.id_type = ADDR; 601558Srgrimes idesc.id_func = pass4check; 6141474Sjulian for (cg = 0; cg < sblock.fs_ncg; cg++) { 6241474Sjulian inumber = cg * sblock.fs_ipg; 6341474Sjulian for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) { 6441474Sjulian if (inumber < ROOTINO) 6541474Sjulian continue; 6641474Sjulian idesc.id_number = inumber; 6741474Sjulian switch (inoinfo(inumber)->ino_state) { 681558Srgrimes 6941474Sjulian case FSTATE: 7041474Sjulian case DFOUND: 7141474Sjulian n = inoinfo(inumber)->ino_linkcnt; 7241474Sjulian if (n) { 7341474Sjulian adjust(&idesc, (short)n); 7441474Sjulian break; 7541474Sjulian } 7641474Sjulian for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) { 771558Srgrimes if (zlnp->zlncnt == inumber) { 781558Srgrimes zlnp->zlncnt = zlnhead->zlncnt; 791558Srgrimes zlnp = zlnhead; 801558Srgrimes zlnhead = zlnhead->next; 811558Srgrimes free((char *)zlnp); 821558Srgrimes clri(&idesc, "UNREF", 1); 831558Srgrimes break; 841558Srgrimes } 8541474Sjulian } 8641474Sjulian break; 871558Srgrimes 8841474Sjulian case DSTATE: 8941474Sjulian clri(&idesc, "UNREF", 1); 9041474Sjulian break; 911558Srgrimes 9241474Sjulian case DCLEAR: 9341474Sjulian dp = ginode(inumber); 9441474Sjulian if (dp->di_size == 0) { 9541474Sjulian clri(&idesc, "ZERO LENGTH", 1); 9641474Sjulian break; 9741474Sjulian } 9841474Sjulian /* fall through */ 9941474Sjulian case FCLEAR: 10041474Sjulian clri(&idesc, "BAD/DUP", 1); 1011558Srgrimes break; 1021558Srgrimes 10341474Sjulian case USTATE: 10441474Sjulian break; 1051558Srgrimes 10641474Sjulian default: 10741474Sjulian errx(EEXIT, "BAD STATE %d FOR INODE I=%d", 10841474Sjulian inoinfo(inumber)->ino_state, inumber); 10941474Sjulian } 1101558Srgrimes } 1111558Srgrimes } 1121558Srgrimes} 1131558Srgrimes 1147585Sbdeint 1151558Srgrimespass4check(idesc) 1161558Srgrimes register struct inodesc *idesc; 1171558Srgrimes{ 1181558Srgrimes register struct dups *dlp; 1191558Srgrimes int nfrags, res = KEEPON; 12023675Speter ufs_daddr_t blkno = idesc->id_blkno; 1211558Srgrimes 1221558Srgrimes for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { 1231558Srgrimes if (chkrange(blkno, 1)) { 1241558Srgrimes res = SKIP; 1251558Srgrimes } else if (testbmap(blkno)) { 1261558Srgrimes for (dlp = duplist; dlp; dlp = dlp->next) { 1271558Srgrimes if (dlp->dup != blkno) 1281558Srgrimes continue; 1291558Srgrimes dlp->dup = duplist->dup; 1301558Srgrimes dlp = duplist; 1311558Srgrimes duplist = duplist->next; 1321558Srgrimes free((char *)dlp); 1331558Srgrimes break; 1341558Srgrimes } 1351558Srgrimes if (dlp == 0) { 1361558Srgrimes clrbmap(blkno); 1371558Srgrimes n_blks--; 1381558Srgrimes } 1391558Srgrimes } 1401558Srgrimes } 1411558Srgrimes return (res); 1421558Srgrimes} 143