pass4.c revision 1558
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 351558Srgrimesstatic char sccsid[] = "@(#)pass4.c 8.1 (Berkeley) 6/5/93"; 361558Srgrimes#endif /* not lint */ 371558Srgrimes 381558Srgrimes#include <sys/param.h> 391558Srgrimes#include <sys/time.h> 401558Srgrimes#include <ufs/ufs/dinode.h> 411558Srgrimes#include <ufs/ffs/fs.h> 421558Srgrimes#include <stdlib.h> 431558Srgrimes#include <string.h> 441558Srgrimes#include "fsck.h" 451558Srgrimes 461558Srgrimesint pass4check(); 471558Srgrimes 481558Srgrimespass4() 491558Srgrimes{ 501558Srgrimes register ino_t inumber; 511558Srgrimes register struct zlncnt *zlnp; 521558Srgrimes struct dinode *dp; 531558Srgrimes struct inodesc idesc; 541558Srgrimes int n; 551558Srgrimes 561558Srgrimes bzero((char *)&idesc, sizeof(struct inodesc)); 571558Srgrimes idesc.id_type = ADDR; 581558Srgrimes idesc.id_func = pass4check; 591558Srgrimes for (inumber = ROOTINO; inumber <= lastino; inumber++) { 601558Srgrimes idesc.id_number = inumber; 611558Srgrimes switch (statemap[inumber]) { 621558Srgrimes 631558Srgrimes case FSTATE: 641558Srgrimes case DFOUND: 651558Srgrimes n = lncntp[inumber]; 661558Srgrimes if (n) 671558Srgrimes adjust(&idesc, (short)n); 681558Srgrimes else { 691558Srgrimes for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 701558Srgrimes if (zlnp->zlncnt == inumber) { 711558Srgrimes zlnp->zlncnt = zlnhead->zlncnt; 721558Srgrimes zlnp = zlnhead; 731558Srgrimes zlnhead = zlnhead->next; 741558Srgrimes free((char *)zlnp); 751558Srgrimes clri(&idesc, "UNREF", 1); 761558Srgrimes break; 771558Srgrimes } 781558Srgrimes } 791558Srgrimes break; 801558Srgrimes 811558Srgrimes case DSTATE: 821558Srgrimes clri(&idesc, "UNREF", 1); 831558Srgrimes break; 841558Srgrimes 851558Srgrimes case DCLEAR: 861558Srgrimes dp = ginode(inumber); 871558Srgrimes if (dp->di_size == 0) { 881558Srgrimes clri(&idesc, "ZERO LENGTH", 1); 891558Srgrimes break; 901558Srgrimes } 911558Srgrimes /* fall through */ 921558Srgrimes case FCLEAR: 931558Srgrimes clri(&idesc, "BAD/DUP", 1); 941558Srgrimes break; 951558Srgrimes 961558Srgrimes case USTATE: 971558Srgrimes break; 981558Srgrimes 991558Srgrimes default: 1001558Srgrimes errexit("BAD STATE %d FOR INODE I=%d", 1011558Srgrimes statemap[inumber], inumber); 1021558Srgrimes } 1031558Srgrimes } 1041558Srgrimes} 1051558Srgrimes 1061558Srgrimespass4check(idesc) 1071558Srgrimes register struct inodesc *idesc; 1081558Srgrimes{ 1091558Srgrimes register struct dups *dlp; 1101558Srgrimes int nfrags, res = KEEPON; 1111558Srgrimes daddr_t blkno = idesc->id_blkno; 1121558Srgrimes 1131558Srgrimes for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { 1141558Srgrimes if (chkrange(blkno, 1)) { 1151558Srgrimes res = SKIP; 1161558Srgrimes } else if (testbmap(blkno)) { 1171558Srgrimes for (dlp = duplist; dlp; dlp = dlp->next) { 1181558Srgrimes if (dlp->dup != blkno) 1191558Srgrimes continue; 1201558Srgrimes dlp->dup = duplist->dup; 1211558Srgrimes dlp = duplist; 1221558Srgrimes duplist = duplist->next; 1231558Srgrimes free((char *)dlp); 1241558Srgrimes break; 1251558Srgrimes } 1261558Srgrimes if (dlp == 0) { 1271558Srgrimes clrbmap(blkno); 1281558Srgrimes n_blks--; 1291558Srgrimes } 1301558Srgrimes } 1311558Srgrimes } 1321558Srgrimes return (res); 1331558Srgrimes} 134