8d3dfc2691
that was built before ffs grew support for TRIM, your filesystem will have plenty of free blocks that the flash chip doesn't know are free, so it can't take advantage of them for wear leveling. Once you've upgraded your kernel, you enable TRIM on the filesystem (tunefs -t enable), then run fsck_ffs -E on it before mounting it. I tested this patch by half-filling an mdconfig'ed filesystem image, running fsck_ffs -E on it, then verifying that the contents were not damaged by comparing them to a pristine copy using rsync's checksum functionality. There is no reliable way to test it on real hardware. Many thanks to mckusick@, who provided the tricky parts of this patch and reviewed the final version. Reviewed by: mckusick@ MFC after: 3 weeks
799 lines
19 KiB
C
799 lines
19 KiB
C
/*
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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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* 4. 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[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95";
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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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|
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#include <sys/param.h>
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#include <sys/time.h>
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|
#include <sys/types.h>
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|
#include <sys/sysctl.h>
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|
#include <sys/disk.h>
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|
#include <sys/disklabel.h>
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|
#include <sys/ioctl.h>
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|
#include <sys/stat.h>
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|
|
|
#include <ufs/ufs/dinode.h>
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|
#include <ufs/ufs/dir.h>
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|
#include <ufs/ffs/fs.h>
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|
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|
#include <err.h>
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|
#include <errno.h>
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|
#include <string.h>
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|
#include <ctype.h>
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|
#include <fstab.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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|
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|
#include "fsck.h"
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|
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|
static void slowio_start(void);
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|
static void slowio_end(void);
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|
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|
long diskreads, totalreads; /* Disk cache statistics */
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|
struct timeval slowio_starttime;
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|
int slowio_delay_usec = 10000; /* Initial IO delay for background fsck */
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|
int slowio_pollcnt;
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|
|
|
int
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|
ftypeok(union dinode *dp)
|
|
{
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|
switch (DIP(dp, di_mode) & IFMT) {
|
|
|
|
case IFDIR:
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|
case IFREG:
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|
case IFBLK:
|
|
case IFCHR:
|
|
case IFLNK:
|
|
case IFSOCK:
|
|
case IFIFO:
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|
return (1);
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|
|
|
default:
|
|
if (debug)
|
|
printf("bad file type 0%o\n", DIP(dp, di_mode));
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|
return (0);
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|
}
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|
}
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|
|
|
int
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|
reply(const char *question)
|
|
{
|
|
int persevere;
|
|
char c;
|
|
|
|
if (preen)
|
|
pfatal("INTERNAL ERROR: GOT TO reply()");
|
|
persevere = !strcmp(question, "CONTINUE");
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|
printf("\n");
|
|
if (!persevere && (nflag || (fswritefd < 0 && bkgrdflag == 0))) {
|
|
printf("%s? no\n\n", question);
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|
resolved = 0;
|
|
return (0);
|
|
}
|
|
if (yflag || (persevere && nflag)) {
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|
printf("%s? yes\n\n", question);
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|
return (1);
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|
}
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|
do {
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|
printf("%s? [yn] ", question);
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|
(void) fflush(stdout);
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|
c = getc(stdin);
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|
while (c != '\n' && getc(stdin) != '\n') {
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|
if (feof(stdin)) {
|
|
resolved = 0;
|
|
return (0);
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|
}
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|
}
|
|
} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
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|
printf("\n");
|
|
if (c == 'y' || c == 'Y')
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|
return (1);
|
|
resolved = 0;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Look up state information for an inode.
|
|
*/
|
|
struct inostat *
|
|
inoinfo(ino_t inum)
|
|
{
|
|
static struct inostat unallocated = { USTATE, 0, 0 };
|
|
struct inostatlist *ilp;
|
|
int iloff;
|
|
|
|
if (inum > maxino)
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errx(EEXIT, "inoinfo: inumber %d out of range", inum);
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|
ilp = &inostathead[inum / sblock.fs_ipg];
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|
iloff = inum % sblock.fs_ipg;
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if (iloff >= ilp->il_numalloced)
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|
return (&unallocated);
|
|
return (&ilp->il_stat[iloff]);
|
|
}
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|
|
|
/*
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|
* Malloc buffers and set up cache.
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|
*/
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|
void
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|
bufinit(void)
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|
{
|
|
struct bufarea *bp;
|
|
long bufcnt, i;
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|
char *bufp;
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|
|
|
pbp = pdirbp = (struct bufarea *)0;
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|
bufp = malloc((unsigned int)sblock.fs_bsize);
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if (bufp == 0)
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|
errx(EEXIT, "cannot allocate buffer pool");
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cgblk.b_un.b_buf = bufp;
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initbarea(&cgblk);
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bufhead.b_next = bufhead.b_prev = &bufhead;
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bufcnt = MAXBUFSPACE / sblock.fs_bsize;
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if (bufcnt < MINBUFS)
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|
bufcnt = MINBUFS;
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for (i = 0; i < bufcnt; i++) {
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bp = (struct bufarea *)malloc(sizeof(struct bufarea));
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bufp = malloc((unsigned int)sblock.fs_bsize);
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|
if (bp == NULL || bufp == NULL) {
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|
if (i >= MINBUFS)
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|
break;
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|
errx(EEXIT, "cannot allocate buffer pool");
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|
}
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bp->b_un.b_buf = bufp;
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|
bp->b_prev = &bufhead;
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|
bp->b_next = bufhead.b_next;
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|
bufhead.b_next->b_prev = bp;
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|
bufhead.b_next = bp;
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|
initbarea(bp);
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|
}
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bufhead.b_size = i; /* save number of buffers */
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}
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|
/*
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|
* Manage a cache of directory blocks.
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|
*/
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|
struct bufarea *
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getdatablk(ufs2_daddr_t blkno, long size)
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|
{
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|
struct bufarea *bp;
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|
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|
for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next)
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|
if (bp->b_bno == fsbtodb(&sblock, blkno))
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|
goto foundit;
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for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev)
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|
if ((bp->b_flags & B_INUSE) == 0)
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|
break;
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if (bp == &bufhead)
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errx(EEXIT, "deadlocked buffer pool");
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getblk(bp, blkno, size);
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|
/* fall through */
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|
foundit:
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|
bp->b_prev->b_next = bp->b_next;
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|
bp->b_next->b_prev = bp->b_prev;
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|
bp->b_prev = &bufhead;
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|
bp->b_next = bufhead.b_next;
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|
bufhead.b_next->b_prev = bp;
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|
bufhead.b_next = bp;
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bp->b_flags |= B_INUSE;
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|
return (bp);
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|
}
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|
void
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|
getblk(struct bufarea *bp, ufs2_daddr_t blk, long size)
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|
{
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ufs2_daddr_t dblk;
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|
totalreads++;
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dblk = fsbtodb(&sblock, blk);
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if (bp->b_bno != dblk) {
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flush(fswritefd, bp);
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diskreads++;
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bp->b_errs = blread(fsreadfd, bp->b_un.b_buf, dblk, size);
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bp->b_bno = dblk;
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|
bp->b_size = size;
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}
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}
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|
void
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flush(int fd, struct bufarea *bp)
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|
{
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|
int i, j;
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|
if (!bp->b_dirty)
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|
return;
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|
bp->b_dirty = 0;
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|
if (fswritefd < 0) {
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|
pfatal("WRITING IN READ_ONLY MODE.\n");
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|
return;
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|
}
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|
if (bp->b_errs != 0)
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|
pfatal("WRITING %sZERO'ED BLOCK %lld TO DISK\n",
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|
(bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ",
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|
(long long)bp->b_bno);
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|
bp->b_errs = 0;
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blwrite(fd, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size);
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|
if (bp != &sblk)
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|
return;
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|
for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
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|
blwrite(fswritefd, (char *)sblock.fs_csp + i,
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|
fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
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|
sblock.fs_cssize - i < sblock.fs_bsize ?
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|
sblock.fs_cssize - i : sblock.fs_bsize);
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|
}
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|
}
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|
|
|
void
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|
rwerror(const char *mesg, ufs2_daddr_t blk)
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|
{
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|
|
|
if (bkgrdcheck)
|
|
exit(EEXIT);
|
|
if (preen == 0)
|
|
printf("\n");
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|
pfatal("CANNOT %s: %ld", mesg, (long)blk);
|
|
if (reply("CONTINUE") == 0)
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|
exit(EEXIT);
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|
}
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|
|
|
void
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|
ckfini(int markclean)
|
|
{
|
|
struct bufarea *bp, *nbp;
|
|
int ofsmodified, cnt = 0;
|
|
|
|
if (bkgrdflag) {
|
|
unlink(snapname);
|
|
if ((!(sblock.fs_flags & FS_UNCLEAN)) != markclean) {
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|
cmd.value = FS_UNCLEAN;
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|
cmd.size = markclean ? -1 : 1;
|
|
if (sysctlbyname("vfs.ffs.setflags", 0, 0,
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|
&cmd, sizeof cmd) == -1)
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|
rwerror("SET FILE SYSTEM FLAGS", FS_UNCLEAN);
|
|
if (!preen) {
|
|
printf("\n***** FILE SYSTEM MARKED %s *****\n",
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markclean ? "CLEAN" : "DIRTY");
|
|
if (!markclean)
|
|
rerun = 1;
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|
}
|
|
} else if (!preen && !markclean) {
|
|
printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
|
|
rerun = 1;
|
|
}
|
|
}
|
|
if (fswritefd < 0) {
|
|
(void)close(fsreadfd);
|
|
return;
|
|
}
|
|
flush(fswritefd, &sblk);
|
|
if (havesb && cursnapshot == 0 && sblock.fs_magic == FS_UFS2_MAGIC &&
|
|
sblk.b_bno != sblock.fs_sblockloc / dev_bsize &&
|
|
!preen && reply("UPDATE STANDARD SUPERBLOCK")) {
|
|
sblk.b_bno = sblock.fs_sblockloc / dev_bsize;
|
|
sbdirty();
|
|
flush(fswritefd, &sblk);
|
|
}
|
|
flush(fswritefd, &cgblk);
|
|
free(cgblk.b_un.b_buf);
|
|
for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) {
|
|
cnt++;
|
|
flush(fswritefd, bp);
|
|
nbp = bp->b_prev;
|
|
free(bp->b_un.b_buf);
|
|
free((char *)bp);
|
|
}
|
|
if (bufhead.b_size != cnt)
|
|
errx(EEXIT, "panic: lost %d buffers", bufhead.b_size - cnt);
|
|
pbp = pdirbp = (struct bufarea *)0;
|
|
if (cursnapshot == 0 && sblock.fs_clean != markclean) {
|
|
if ((sblock.fs_clean = markclean) != 0) {
|
|
sblock.fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK);
|
|
sblock.fs_pendingblocks = 0;
|
|
sblock.fs_pendinginodes = 0;
|
|
}
|
|
sbdirty();
|
|
ofsmodified = fsmodified;
|
|
flush(fswritefd, &sblk);
|
|
fsmodified = ofsmodified;
|
|
if (!preen) {
|
|
printf("\n***** FILE SYSTEM MARKED %s *****\n",
|
|
markclean ? "CLEAN" : "DIRTY");
|
|
if (!markclean)
|
|
rerun = 1;
|
|
}
|
|
} else if (!preen) {
|
|
if (markclean) {
|
|
printf("\n***** FILE SYSTEM IS CLEAN *****\n");
|
|
} else {
|
|
printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
|
|
rerun = 1;
|
|
}
|
|
}
|
|
if (debug && totalreads > 0)
|
|
printf("cache missed %ld of %ld (%d%%)\n", diskreads,
|
|
totalreads, (int)(diskreads * 100 / totalreads));
|
|
(void)close(fsreadfd);
|
|
(void)close(fswritefd);
|
|
}
|
|
|
|
int
|
|
blread(int fd, char *buf, ufs2_daddr_t blk, long size)
|
|
{
|
|
char *cp;
|
|
int i, errs;
|
|
off_t offset;
|
|
|
|
offset = blk;
|
|
offset *= dev_bsize;
|
|
if (bkgrdflag)
|
|
slowio_start();
|
|
if (lseek(fd, offset, 0) < 0)
|
|
rwerror("SEEK BLK", blk);
|
|
else if (read(fd, buf, (int)size) == size) {
|
|
if (bkgrdflag)
|
|
slowio_end();
|
|
return (0);
|
|
}
|
|
rwerror("READ BLK", blk);
|
|
if (lseek(fd, offset, 0) < 0)
|
|
rwerror("SEEK BLK", blk);
|
|
errs = 0;
|
|
memset(buf, 0, (size_t)size);
|
|
printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:");
|
|
for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) {
|
|
if (read(fd, cp, (int)secsize) != secsize) {
|
|
(void)lseek(fd, offset + i + secsize, 0);
|
|
if (secsize != dev_bsize && dev_bsize != 1)
|
|
printf(" %jd (%jd),",
|
|
(intmax_t)(blk * dev_bsize + i) / secsize,
|
|
(intmax_t)blk + i / dev_bsize);
|
|
else
|
|
printf(" %jd,", (intmax_t)blk + i / dev_bsize);
|
|
errs++;
|
|
}
|
|
}
|
|
printf("\n");
|
|
if (errs)
|
|
resolved = 0;
|
|
return (errs);
|
|
}
|
|
|
|
void
|
|
blwrite(int fd, char *buf, ufs2_daddr_t blk, long size)
|
|
{
|
|
int i;
|
|
char *cp;
|
|
off_t offset;
|
|
|
|
if (fd < 0)
|
|
return;
|
|
offset = blk;
|
|
offset *= dev_bsize;
|
|
if (lseek(fd, offset, 0) < 0)
|
|
rwerror("SEEK BLK", blk);
|
|
else if (write(fd, buf, (int)size) == size) {
|
|
fsmodified = 1;
|
|
return;
|
|
}
|
|
resolved = 0;
|
|
rwerror("WRITE BLK", blk);
|
|
if (lseek(fd, offset, 0) < 0)
|
|
rwerror("SEEK BLK", blk);
|
|
printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:");
|
|
for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize)
|
|
if (write(fd, cp, (int)dev_bsize) != dev_bsize) {
|
|
(void)lseek(fd, offset + i + dev_bsize, 0);
|
|
printf(" %jd,", (intmax_t)blk + i / dev_bsize);
|
|
}
|
|
printf("\n");
|
|
return;
|
|
}
|
|
|
|
void
|
|
blerase(int fd, ufs2_daddr_t blk, long size)
|
|
{
|
|
off_t ioarg[2];
|
|
|
|
if (fd < 0)
|
|
return;
|
|
ioarg[0] = blk * dev_bsize;
|
|
ioarg[1] = size;
|
|
ioctl(fd, DIOCGDELETE, ioarg);
|
|
/* we don't really care if we succeed or not */
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Verify cylinder group's magic number and other parameters. If the
|
|
* test fails, offer an option to rebuild the whole cylinder group.
|
|
*/
|
|
int
|
|
check_cgmagic(int cg, struct cg *cgp)
|
|
{
|
|
|
|
/*
|
|
* Extended cylinder group checks.
|
|
*/
|
|
if (cg_chkmagic(cgp) &&
|
|
((sblock.fs_magic == FS_UFS1_MAGIC &&
|
|
cgp->cg_old_niblk == sblock.fs_ipg &&
|
|
cgp->cg_ndblk <= sblock.fs_fpg &&
|
|
cgp->cg_old_ncyl <= sblock.fs_old_cpg) ||
|
|
(sblock.fs_magic == FS_UFS2_MAGIC &&
|
|
cgp->cg_niblk == sblock.fs_ipg &&
|
|
cgp->cg_ndblk <= sblock.fs_fpg &&
|
|
cgp->cg_initediblk <= sblock.fs_ipg))) {
|
|
return (1);
|
|
}
|
|
pfatal("CYLINDER GROUP %d: BAD MAGIC NUMBER", cg);
|
|
if (!reply("REBUILD CYLINDER GROUP")) {
|
|
printf("YOU WILL NEED TO RERUN FSCK.\n");
|
|
rerun = 1;
|
|
return (1);
|
|
}
|
|
/*
|
|
* Zero out the cylinder group and then initialize critical fields.
|
|
* Bit maps and summaries will be recalculated by later passes.
|
|
*/
|
|
memset(cgp, 0, (size_t)sblock.fs_cgsize);
|
|
cgp->cg_magic = CG_MAGIC;
|
|
cgp->cg_cgx = cg;
|
|
cgp->cg_niblk = sblock.fs_ipg;
|
|
cgp->cg_initediblk = sblock.fs_ipg < 2 * INOPB(&sblock) ?
|
|
sblock.fs_ipg : 2 * INOPB(&sblock);
|
|
if (cgbase(&sblock, cg) + sblock.fs_fpg < sblock.fs_size)
|
|
cgp->cg_ndblk = sblock.fs_fpg;
|
|
else
|
|
cgp->cg_ndblk = sblock.fs_size - cgbase(&sblock, cg);
|
|
cgp->cg_iusedoff = &cgp->cg_space[0] - (u_char *)(&cgp->cg_firstfield);
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC) {
|
|
cgp->cg_niblk = 0;
|
|
cgp->cg_initediblk = 0;
|
|
cgp->cg_old_ncyl = sblock.fs_old_cpg;
|
|
cgp->cg_old_niblk = sblock.fs_ipg;
|
|
cgp->cg_old_btotoff = cgp->cg_iusedoff;
|
|
cgp->cg_old_boff = cgp->cg_old_btotoff +
|
|
sblock.fs_old_cpg * sizeof(int32_t);
|
|
cgp->cg_iusedoff = cgp->cg_old_boff +
|
|
sblock.fs_old_cpg * sizeof(u_int16_t);
|
|
}
|
|
cgp->cg_freeoff = cgp->cg_iusedoff + howmany(sblock.fs_ipg, CHAR_BIT);
|
|
cgp->cg_nextfreeoff = cgp->cg_freeoff + howmany(sblock.fs_fpg,CHAR_BIT);
|
|
if (sblock.fs_contigsumsize > 0) {
|
|
cgp->cg_nclusterblks = cgp->cg_ndblk / sblock.fs_frag;
|
|
cgp->cg_clustersumoff =
|
|
roundup(cgp->cg_nextfreeoff, sizeof(u_int32_t));
|
|
cgp->cg_clustersumoff -= sizeof(u_int32_t);
|
|
cgp->cg_clusteroff = cgp->cg_clustersumoff +
|
|
(sblock.fs_contigsumsize + 1) * sizeof(u_int32_t);
|
|
cgp->cg_nextfreeoff = cgp->cg_clusteroff +
|
|
howmany(fragstoblks(&sblock, sblock.fs_fpg), CHAR_BIT);
|
|
}
|
|
cgdirty();
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* allocate a data block with the specified number of fragments
|
|
*/
|
|
ufs2_daddr_t
|
|
allocblk(long frags)
|
|
{
|
|
int i, j, k, cg, baseblk;
|
|
struct cg *cgp = &cgrp;
|
|
|
|
if (frags <= 0 || frags > sblock.fs_frag)
|
|
return (0);
|
|
for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) {
|
|
for (j = 0; j <= sblock.fs_frag - frags; j++) {
|
|
if (testbmap(i + j))
|
|
continue;
|
|
for (k = 1; k < frags; k++)
|
|
if (testbmap(i + j + k))
|
|
break;
|
|
if (k < frags) {
|
|
j += k;
|
|
continue;
|
|
}
|
|
cg = dtog(&sblock, i + j);
|
|
getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize);
|
|
if (!check_cgmagic(cg, cgp))
|
|
return (0);
|
|
baseblk = dtogd(&sblock, i + j);
|
|
for (k = 0; k < frags; k++) {
|
|
setbmap(i + j + k);
|
|
clrbit(cg_blksfree(cgp), baseblk + k);
|
|
}
|
|
n_blks += frags;
|
|
if (frags == sblock.fs_frag)
|
|
cgp->cg_cs.cs_nbfree--;
|
|
else
|
|
cgp->cg_cs.cs_nffree -= frags;
|
|
cgdirty();
|
|
return (i + j);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Free a previously allocated block
|
|
*/
|
|
void
|
|
freeblk(ufs2_daddr_t blkno, long frags)
|
|
{
|
|
struct inodesc idesc;
|
|
|
|
idesc.id_blkno = blkno;
|
|
idesc.id_numfrags = frags;
|
|
(void)pass4check(&idesc);
|
|
}
|
|
|
|
/* Slow down IO so as to leave some disk bandwidth for other processes */
|
|
void
|
|
slowio_start()
|
|
{
|
|
|
|
/* Delay one in every 8 operations */
|
|
slowio_pollcnt = (slowio_pollcnt + 1) & 7;
|
|
if (slowio_pollcnt == 0) {
|
|
gettimeofday(&slowio_starttime, NULL);
|
|
}
|
|
}
|
|
|
|
void
|
|
slowio_end()
|
|
{
|
|
struct timeval tv;
|
|
int delay_usec;
|
|
|
|
if (slowio_pollcnt != 0)
|
|
return;
|
|
|
|
/* Update the slowdown interval. */
|
|
gettimeofday(&tv, NULL);
|
|
delay_usec = (tv.tv_sec - slowio_starttime.tv_sec) * 1000000 +
|
|
(tv.tv_usec - slowio_starttime.tv_usec);
|
|
if (delay_usec < 64)
|
|
delay_usec = 64;
|
|
if (delay_usec > 2500000)
|
|
delay_usec = 2500000;
|
|
slowio_delay_usec = (slowio_delay_usec * 63 + delay_usec) >> 6;
|
|
/* delay by 8 times the average IO delay */
|
|
if (slowio_delay_usec > 64)
|
|
usleep(slowio_delay_usec * 8);
|
|
}
|
|
|
|
/*
|
|
* Find a pathname
|
|
*/
|
|
void
|
|
getpathname(char *namebuf, ino_t curdir, ino_t ino)
|
|
{
|
|
int len;
|
|
char *cp;
|
|
struct inodesc idesc;
|
|
static int busy = 0;
|
|
|
|
if (curdir == ino && ino == ROOTINO) {
|
|
(void)strcpy(namebuf, "/");
|
|
return;
|
|
}
|
|
if (busy || !INO_IS_DVALID(curdir)) {
|
|
(void)strcpy(namebuf, "?");
|
|
return;
|
|
}
|
|
busy = 1;
|
|
memset(&idesc, 0, sizeof(struct inodesc));
|
|
idesc.id_type = DATA;
|
|
idesc.id_fix = IGNORE;
|
|
cp = &namebuf[MAXPATHLEN - 1];
|
|
*cp = '\0';
|
|
if (curdir != ino) {
|
|
idesc.id_parent = curdir;
|
|
goto namelookup;
|
|
}
|
|
while (ino != ROOTINO) {
|
|
idesc.id_number = ino;
|
|
idesc.id_func = findino;
|
|
idesc.id_name = strdup("..");
|
|
if ((ckinode(ginode(ino), &idesc) & FOUND) == 0)
|
|
break;
|
|
namelookup:
|
|
idesc.id_number = idesc.id_parent;
|
|
idesc.id_parent = ino;
|
|
idesc.id_func = findname;
|
|
idesc.id_name = namebuf;
|
|
if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0)
|
|
break;
|
|
len = strlen(namebuf);
|
|
cp -= len;
|
|
memmove(cp, namebuf, (size_t)len);
|
|
*--cp = '/';
|
|
if (cp < &namebuf[MAXNAMLEN])
|
|
break;
|
|
ino = idesc.id_number;
|
|
}
|
|
busy = 0;
|
|
if (ino != ROOTINO)
|
|
*--cp = '?';
|
|
memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp));
|
|
}
|
|
|
|
void
|
|
catch(int sig __unused)
|
|
{
|
|
|
|
ckfini(0);
|
|
exit(12);
|
|
}
|
|
|
|
/*
|
|
* When preening, allow a single quit to signal
|
|
* a special exit after file system checks complete
|
|
* so that reboot sequence may be interrupted.
|
|
*/
|
|
void
|
|
catchquit(int sig __unused)
|
|
{
|
|
printf("returning to single-user after file system check\n");
|
|
returntosingle = 1;
|
|
(void)signal(SIGQUIT, SIG_DFL);
|
|
}
|
|
|
|
/*
|
|
* determine whether an inode should be fixed.
|
|
*/
|
|
int
|
|
dofix(struct inodesc *idesc, const char *msg)
|
|
{
|
|
|
|
switch (idesc->id_fix) {
|
|
|
|
case DONTKNOW:
|
|
if (idesc->id_type == DATA)
|
|
direrror(idesc->id_number, msg);
|
|
else
|
|
pwarn("%s", msg);
|
|
if (preen) {
|
|
printf(" (SALVAGED)\n");
|
|
idesc->id_fix = FIX;
|
|
return (ALTERED);
|
|
}
|
|
if (reply("SALVAGE") == 0) {
|
|
idesc->id_fix = NOFIX;
|
|
return (0);
|
|
}
|
|
idesc->id_fix = FIX;
|
|
return (ALTERED);
|
|
|
|
case FIX:
|
|
return (ALTERED);
|
|
|
|
case NOFIX:
|
|
case IGNORE:
|
|
return (0);
|
|
|
|
default:
|
|
errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix);
|
|
}
|
|
/* NOTREACHED */
|
|
return (0);
|
|
}
|
|
|
|
#include <stdarg.h>
|
|
|
|
/*
|
|
* An unexpected inconsistency occured.
|
|
* Die if preening or file system is running with soft dependency protocol,
|
|
* otherwise just print message and continue.
|
|
*/
|
|
void
|
|
pfatal(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
if (!preen) {
|
|
(void)vfprintf(stdout, fmt, ap);
|
|
va_end(ap);
|
|
if (usedsoftdep)
|
|
(void)fprintf(stdout,
|
|
"\nUNEXPECTED SOFT UPDATE INCONSISTENCY\n");
|
|
/*
|
|
* Force foreground fsck to clean up inconsistency.
|
|
*/
|
|
if (bkgrdflag) {
|
|
cmd.value = FS_NEEDSFSCK;
|
|
cmd.size = 1;
|
|
if (sysctlbyname("vfs.ffs.setflags", 0, 0,
|
|
&cmd, sizeof cmd) == -1)
|
|
pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n");
|
|
fprintf(stdout, "CANNOT RUN IN BACKGROUND\n");
|
|
ckfini(0);
|
|
exit(EEXIT);
|
|
}
|
|
return;
|
|
}
|
|
if (cdevname == NULL)
|
|
cdevname = strdup("fsck");
|
|
(void)fprintf(stdout, "%s: ", cdevname);
|
|
(void)vfprintf(stdout, fmt, ap);
|
|
(void)fprintf(stdout,
|
|
"\n%s: UNEXPECTED%sINCONSISTENCY; RUN fsck MANUALLY.\n",
|
|
cdevname, usedsoftdep ? " SOFT UPDATE " : " ");
|
|
/*
|
|
* Force foreground fsck to clean up inconsistency.
|
|
*/
|
|
if (bkgrdflag) {
|
|
cmd.value = FS_NEEDSFSCK;
|
|
cmd.size = 1;
|
|
if (sysctlbyname("vfs.ffs.setflags", 0, 0,
|
|
&cmd, sizeof cmd) == -1)
|
|
pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n");
|
|
}
|
|
ckfini(0);
|
|
exit(EEXIT);
|
|
}
|
|
|
|
/*
|
|
* Pwarn just prints a message when not preening or running soft dependency
|
|
* protocol, or a warning (preceded by filename) when preening.
|
|
*/
|
|
void
|
|
pwarn(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
if (preen)
|
|
(void)fprintf(stdout, "%s: ", cdevname);
|
|
(void)vfprintf(stdout, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
/*
|
|
* Stub for routines from kernel.
|
|
*/
|
|
void
|
|
panic(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
pfatal("INTERNAL INCONSISTENCY:");
|
|
(void)vfprintf(stdout, fmt, ap);
|
|
va_end(ap);
|
|
exit(EEXIT);
|
|
}
|