fe815b88b5
Pass 1b of fsck_ffs runs only when Pass 1 has found duplicate blocks. Pass 1 only knows that a block is duplicate when it finds the second instance of its use. The role of Pass 1b is to find the first use of all the duplicate blocks. It makes a pass over the cylinder groups looking for these blocks. When moving to the next cylinder group, Pass 1b failed to properly calculate the starting inode number for the cylinder group resulting in the above error message when it tried to read the first inode in the cylinder group. Reported by: Px Tested by: Px PR: 255979 MFC after: 3 days Sponsored by: Netflix
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static const char sccsid[] = "@(#)pass1b.c 8.4 (Berkeley) 4/28/95";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include <string.h>
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#include "fsck.h"
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static struct dups *duphead;
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static int pass1bcheck(struct inodesc *);
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void
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pass1b(void)
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{
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int c, i;
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union dinode *dp;
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struct inodesc idesc;
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ino_t inumber, inosused;
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memset(&idesc, 0, sizeof(struct inodesc));
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idesc.id_func = pass1bcheck;
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duphead = duplist;
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for (c = 0; c < sblock.fs_ncg; c++) {
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if (got_siginfo) {
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printf("%s: phase 1b: cyl group %d of %d (%d%%)\n",
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cdevname, c, sblock.fs_ncg,
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c * 100 / sblock.fs_ncg);
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got_siginfo = 0;
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}
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if (got_sigalarm) {
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setproctitle("%s p1b %d%%", cdevname,
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c * 100 / sblock.fs_ncg);
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got_sigalarm = 0;
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}
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inosused = inostathead[c].il_numalloced;
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if (inosused == 0)
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continue;
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setinodebuf(c, inosused);
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inumber = c * sblock.fs_ipg;
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for (i = 0; i < inosused; i++, inumber++) {
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if (inumber < UFS_ROOTINO) {
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(void)getnextinode(inumber, 0);
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continue;
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}
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dp = getnextinode(inumber, 0);
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idesc.id_number = inumber;
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idesc.id_type = inoinfo(inumber)->ino_idtype;
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if (inoinfo(inumber)->ino_state != USTATE &&
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(ckinode(dp, &idesc) & STOP)) {
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rerun = 1;
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return;
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}
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}
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}
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}
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static int
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pass1bcheck(struct inodesc *idesc)
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{
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struct dups *dlp;
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int nfrags, res = KEEPON;
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ufs2_daddr_t blkno = idesc->id_blkno;
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for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
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if (chkrange(blkno, 1))
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res = SKIP;
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for (dlp = duphead; dlp; dlp = dlp->next) {
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if (dlp->dup == blkno) {
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blkerror(idesc->id_number, "DUP", blkno);
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dlp->dup = duphead->dup;
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duphead->dup = blkno;
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duphead = duphead->next;
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}
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if (dlp == muldup)
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break;
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}
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if (muldup == NULL || duphead == muldup->next) {
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rerun = 1;
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return (STOP);
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}
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}
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return (res);
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}
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