pass4.c revision 23675
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> 391558Srgrimes#include <sys/time.h> 4023675Speter 411558Srgrimes#include <ufs/ufs/dinode.h> 421558Srgrimes#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; 561558Srgrimes int n; 571558Srgrimes 5823675Speter memset(&idesc, 0, sizeof(struct inodesc)); 591558Srgrimes idesc.id_type = ADDR; 601558Srgrimes idesc.id_func = pass4check; 611558Srgrimes for (inumber = ROOTINO; inumber <= lastino; inumber++) { 621558Srgrimes idesc.id_number = inumber; 631558Srgrimes switch (statemap[inumber]) { 641558Srgrimes 651558Srgrimes case FSTATE: 661558Srgrimes case DFOUND: 671558Srgrimes n = lncntp[inumber]; 681558Srgrimes if (n) 691558Srgrimes adjust(&idesc, (short)n); 701558Srgrimes else { 711558Srgrimes for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 721558Srgrimes if (zlnp->zlncnt == inumber) { 731558Srgrimes zlnp->zlncnt = zlnhead->zlncnt; 741558Srgrimes zlnp = zlnhead; 751558Srgrimes zlnhead = zlnhead->next; 761558Srgrimes free((char *)zlnp); 771558Srgrimes clri(&idesc, "UNREF", 1); 781558Srgrimes break; 791558Srgrimes } 801558Srgrimes } 811558Srgrimes break; 821558Srgrimes 831558Srgrimes case DSTATE: 841558Srgrimes clri(&idesc, "UNREF", 1); 851558Srgrimes break; 861558Srgrimes 871558Srgrimes case DCLEAR: 881558Srgrimes dp = ginode(inumber); 891558Srgrimes if (dp->di_size == 0) { 901558Srgrimes clri(&idesc, "ZERO LENGTH", 1); 911558Srgrimes break; 921558Srgrimes } 931558Srgrimes /* fall through */ 941558Srgrimes case FCLEAR: 951558Srgrimes clri(&idesc, "BAD/DUP", 1); 961558Srgrimes break; 971558Srgrimes 981558Srgrimes case USTATE: 991558Srgrimes break; 1001558Srgrimes 1011558Srgrimes default: 10223675Speter errx(EEXIT, "BAD STATE %d FOR INODE I=%d", 1031558Srgrimes statemap[inumber], inumber); 1041558Srgrimes } 1051558Srgrimes } 1061558Srgrimes} 1071558Srgrimes 1087585Sbdeint 1091558Srgrimespass4check(idesc) 1101558Srgrimes register struct inodesc *idesc; 1111558Srgrimes{ 1121558Srgrimes register struct dups *dlp; 1131558Srgrimes int nfrags, res = KEEPON; 11423675Speter ufs_daddr_t blkno = idesc->id_blkno; 1151558Srgrimes 1161558Srgrimes for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) { 1171558Srgrimes if (chkrange(blkno, 1)) { 1181558Srgrimes res = SKIP; 1191558Srgrimes } else if (testbmap(blkno)) { 1201558Srgrimes for (dlp = duplist; dlp; dlp = dlp->next) { 1211558Srgrimes if (dlp->dup != blkno) 1221558Srgrimes continue; 1231558Srgrimes dlp->dup = duplist->dup; 1241558Srgrimes dlp = duplist; 1251558Srgrimes duplist = duplist->next; 1261558Srgrimes free((char *)dlp); 1271558Srgrimes break; 1281558Srgrimes } 1291558Srgrimes if (dlp == 0) { 1301558Srgrimes clrbmap(blkno); 1311558Srgrimes n_blks--; 1321558Srgrimes } 1331558Srgrimes } 1341558Srgrimes } 1351558Srgrimes return (res); 1361558Srgrimes} 137