pass4.c revision 41477
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 3541477Sjulian#if 0 3623675Speterstatic const char sccsid[] = "@(#)pass4.c 8.4 (Berkeley) 4/28/95"; 3741477Sjulian#endif 3841477Sjulianstatic const char rcsid[] = 3941477Sjulian "$Id: pass4.c,v 1.4 1998/06/15 07:07:19 charnier Exp $"; 401558Srgrimes#endif /* not lint */ 411558Srgrimes 421558Srgrimes#include <sys/param.h> 4323675Speter 441558Srgrimes#include <ufs/ufs/dinode.h> 4541474Sjulian#include <ufs/ffs/fs.h> 4623675Speter 4723675Speter#include <err.h> 481558Srgrimes#include <string.h> 4923675Speter 501558Srgrimes#include "fsck.h" 511558Srgrimes 527585Sbdevoid 531558Srgrimespass4() 541558Srgrimes{ 551558Srgrimes register ino_t inumber; 561558Srgrimes register struct zlncnt *zlnp; 571558Srgrimes struct dinode *dp; 581558Srgrimes struct inodesc idesc; 5941474Sjulian int i, n, cg; 601558Srgrimes 6123675Speter memset(&idesc, 0, sizeof(struct inodesc)); 621558Srgrimes idesc.id_type = ADDR; 631558Srgrimes idesc.id_func = pass4check; 6441474Sjulian for (cg = 0; cg < sblock.fs_ncg; cg++) { 6541474Sjulian inumber = cg * sblock.fs_ipg; 6641474Sjulian for (i = 0; i < inostathead[cg].il_numalloced; i++, inumber++) { 6741474Sjulian if (inumber < ROOTINO) 6841474Sjulian continue; 6941474Sjulian idesc.id_number = inumber; 7041474Sjulian switch (inoinfo(inumber)->ino_state) { 711558Srgrimes 7241474Sjulian case FSTATE: 7341474Sjulian case DFOUND: 7441474Sjulian n = inoinfo(inumber)->ino_linkcnt; 7541474Sjulian if (n) { 7641474Sjulian adjust(&idesc, (short)n); 7741474Sjulian break; 7841474Sjulian } 7941474Sjulian for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) { 801558Srgrimes if (zlnp->zlncnt == inumber) { 811558Srgrimes zlnp->zlncnt = zlnhead->zlncnt; 821558Srgrimes zlnp = zlnhead; 831558Srgrimes zlnhead = zlnhead->next; 841558Srgrimes free((char *)zlnp); 851558Srgrimes clri(&idesc, "UNREF", 1); 861558Srgrimes break; 871558Srgrimes } 8841474Sjulian } 8941474Sjulian break; 901558Srgrimes 9141474Sjulian case DSTATE: 9241474Sjulian clri(&idesc, "UNREF", 1); 9341474Sjulian break; 941558Srgrimes 9541474Sjulian case DCLEAR: 9641474Sjulian dp = ginode(inumber); 9741474Sjulian if (dp->di_size == 0) { 9841474Sjulian clri(&idesc, "ZERO LENGTH", 1); 9941474Sjulian break; 10041474Sjulian } 10141474Sjulian /* fall through */ 10241474Sjulian case FCLEAR: 10341474Sjulian clri(&idesc, "BAD/DUP", 1); 1041558Srgrimes break; 1051558Srgrimes 10641474Sjulian case USTATE: 10741474Sjulian break; 1081558Srgrimes 10941474Sjulian default: 11041474Sjulian errx(EEXIT, "BAD STATE %d FOR INODE I=%d", 11141474Sjulian inoinfo(inumber)->ino_state, inumber); 11241474Sjulian } 1131558Srgrimes } 1141558Srgrimes } 1151558Srgrimes} 1161558Srgrimes 1177585Sbdeint 1181558Srgrimespass4check(idesc) 1191558Srgrimes register struct inodesc *idesc; 1201558Srgrimes{ 1211558Srgrimes register struct dups *dlp; 1221558Srgrimes int nfrags, res = KEEPON; 12323675Speter ufs_daddr_t blkno = idesc->id_blkno; 1241558Srgrimes 1251558Srgrimes for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { 1261558Srgrimes if (chkrange(blkno, 1)) { 1271558Srgrimes res = SKIP; 1281558Srgrimes } else if (testbmap(blkno)) { 1291558Srgrimes for (dlp = duplist; dlp; dlp = dlp->next) { 1301558Srgrimes if (dlp->dup != blkno) 1311558Srgrimes continue; 1321558Srgrimes dlp->dup = duplist->dup; 1331558Srgrimes dlp = duplist; 1341558Srgrimes duplist = duplist->next; 1351558Srgrimes free((char *)dlp); 1361558Srgrimes break; 1371558Srgrimes } 1381558Srgrimes if (dlp == 0) { 1391558Srgrimes clrbmap(blkno); 1401558Srgrimes n_blks--; 1411558Srgrimes } 1421558Srgrimes } 1431558Srgrimes } 1441558Srgrimes return (res); 1451558Srgrimes} 146