freebsd-skq/sbin/fsck_ffs/fsutil.c

1045 lines
25 KiB
C
Raw Normal View History

/*
* Copyright (c) 1980, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if 0
#ifndef lint
static const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/disk.h>
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
#include <sys/disklabel.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ffs/fs.h>
#include <err.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <fstab.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include "fsck.h"
static void slowio_start(void);
static void slowio_end(void);
static void printIOstats(void);
static long diskreads, totaldiskreads, totalreads; /* Disk cache statistics */
static struct timespec startpass, finishpass;
struct timeval slowio_starttime;
int slowio_delay_usec = 10000; /* Initial IO delay for background fsck */
int slowio_pollcnt;
static struct bufarea cgblk; /* backup buffer for cylinder group blocks */
static TAILQ_HEAD(buflist, bufarea) bufhead; /* head of buffer cache list */
static int numbufs; /* size of buffer cache */
static char *buftype[BT_NUMBUFTYPES] = BT_NAMES;
static struct bufarea *cgbufs; /* header for cylinder group cache */
static int flushtries; /* number of tries to reclaim memory */
void
fsutilinit(void)
{
diskreads = totaldiskreads = totalreads = 0;
bzero(&startpass, sizeof(struct timespec));
bzero(&finishpass, sizeof(struct timespec));
bzero(&slowio_starttime, sizeof(struct timeval));
slowio_delay_usec = 10000;
slowio_pollcnt = 0;
bzero(&cgblk, sizeof(struct bufarea));
TAILQ_INIT(&bufhead);
numbufs = 0;
/* buftype ? */
cgbufs = NULL;
flushtries = 0;
}
int
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
ftypeok(union dinode *dp)
{
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
switch (DIP(dp, di_mode) & IFMT) {
case IFDIR:
case IFREG:
case IFBLK:
case IFCHR:
case IFLNK:
case IFSOCK:
case IFIFO:
return (1);
default:
if (debug)
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
printf("bad file type 0%o\n", DIP(dp, di_mode));
return (0);
}
}
int
reply(const char *question)
{
int persevere;
char c;
if (preen)
pfatal("INTERNAL ERROR: GOT TO reply()");
persevere = !strcmp(question, "CONTINUE");
printf("\n");
if (!persevere && (nflag || (fswritefd < 0 && bkgrdflag == 0))) {
printf("%s? no\n\n", question);
resolved = 0;
return (0);
}
if (yflag || (persevere && nflag)) {
printf("%s? yes\n\n", question);
return (1);
}
do {
printf("%s? [yn] ", question);
(void) fflush(stdout);
c = getc(stdin);
while (c != '\n' && getc(stdin) != '\n') {
if (feof(stdin)) {
resolved = 0;
return (0);
}
}
} while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
printf("\n");
if (c == 'y' || c == 'Y')
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)
errx(EEXIT, "inoinfo: inumber %ju out of range",
(uintmax_t)inum);
ilp = &inostathead[inum / sblock.fs_ipg];
iloff = inum % sblock.fs_ipg;
if (iloff >= ilp->il_numalloced)
return (&unallocated);
return (&ilp->il_stat[iloff]);
}
/*
* Malloc buffers and set up cache.
*/
void
bufinit(void)
{
struct bufarea *bp;
long bufcnt, i;
char *bufp;
pbp = pdirbp = (struct bufarea *)0;
bufp = Malloc((unsigned int)sblock.fs_bsize);
if (bufp == NULL)
errx(EEXIT, "cannot allocate buffer pool");
cgblk.b_un.b_buf = bufp;
initbarea(&cgblk, BT_CYLGRP);
TAILQ_INIT(&bufhead);
bufcnt = MAXBUFS;
if (bufcnt < MINBUFS)
bufcnt = MINBUFS;
for (i = 0; i < bufcnt; i++) {
bp = (struct bufarea *)Malloc(sizeof(struct bufarea));
bufp = Malloc((unsigned int)sblock.fs_bsize);
if (bp == NULL || bufp == NULL) {
if (i >= MINBUFS)
break;
errx(EEXIT, "cannot allocate buffer pool");
}
bp->b_un.b_buf = bufp;
TAILQ_INSERT_HEAD(&bufhead, bp, b_list);
initbarea(bp, BT_UNKNOWN);
}
numbufs = i; /* save number of buffers */
for (i = 0; i < BT_NUMBUFTYPES; i++) {
readtime[i].tv_sec = totalreadtime[i].tv_sec = 0;
readtime[i].tv_nsec = totalreadtime[i].tv_nsec = 0;
readcnt[i] = totalreadcnt[i] = 0;
}
}
/*
* Manage cylinder group buffers.
*/
static struct bufarea *cgbufs; /* header for cylinder group cache */
static int flushtries; /* number of tries to reclaim memory */
struct bufarea *
cgget(int cg)
{
struct bufarea *cgbp;
struct cg *cgp;
if (cgbufs == NULL) {
cgbufs = calloc(sblock.fs_ncg, sizeof(struct bufarea));
if (cgbufs == NULL)
errx(EEXIT, "cannot allocate cylinder group buffers");
}
cgbp = &cgbufs[cg];
if (cgbp->b_un.b_cg != NULL)
return (cgbp);
cgp = NULL;
if (flushtries == 0)
cgp = malloc((unsigned int)sblock.fs_cgsize);
if (cgp == NULL) {
getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize);
return (&cgblk);
}
cgbp->b_un.b_cg = cgp;
initbarea(cgbp, BT_CYLGRP);
getblk(cgbp, cgtod(&sblock, cg), sblock.fs_cgsize);
return (cgbp);
}
/*
* Attempt to flush a cylinder group cache entry.
* Return whether the flush was successful.
*/
int
flushentry(void)
{
struct bufarea *cgbp;
if (flushtries == sblock.fs_ncg || cgbufs == NULL)
return (0);
cgbp = &cgbufs[flushtries++];
if (cgbp->b_un.b_cg == NULL)
return (0);
flush(fswritefd, cgbp);
free(cgbp->b_un.b_buf);
cgbp->b_un.b_buf = NULL;
return (1);
}
/*
* Manage a cache of directory blocks.
*/
struct bufarea *
getdatablk(ufs2_daddr_t blkno, long size, int type)
{
struct bufarea *bp;
TAILQ_FOREACH(bp, &bufhead, b_list)
if (bp->b_bno == fsbtodb(&sblock, blkno))
goto foundit;
TAILQ_FOREACH_REVERSE(bp, &bufhead, buflist, b_list)
if ((bp->b_flags & B_INUSE) == 0)
break;
if (bp == NULL)
errx(EEXIT, "deadlocked buffer pool");
bp->b_type = type;
getblk(bp, blkno, size);
/* fall through */
foundit:
if (debug && bp->b_type != type)
printf("Buffer type changed from %s to %s\n",
buftype[bp->b_type], buftype[type]);
TAILQ_REMOVE(&bufhead, bp, b_list);
TAILQ_INSERT_HEAD(&bufhead, bp, b_list);
bp->b_flags |= B_INUSE;
return (bp);
}
/*
* Timespec operations (from <sys/time.h>).
*/
#define timespecsub(vvp, uvp) \
do { \
(vvp)->tv_sec -= (uvp)->tv_sec; \
(vvp)->tv_nsec -= (uvp)->tv_nsec; \
if ((vvp)->tv_nsec < 0) { \
(vvp)->tv_sec--; \
(vvp)->tv_nsec += 1000000000; \
} \
} while (0)
#define timespecadd(vvp, uvp) \
do { \
(vvp)->tv_sec += (uvp)->tv_sec; \
(vvp)->tv_nsec += (uvp)->tv_nsec; \
if ((vvp)->tv_nsec >= 1000000000) { \
(vvp)->tv_sec++; \
(vvp)->tv_nsec -= 1000000000; \
} \
} while (0)
void
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
getblk(struct bufarea *bp, ufs2_daddr_t blk, long size)
{
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
ufs2_daddr_t dblk;
struct timespec start, finish;
dblk = fsbtodb(&sblock, blk);
if (bp->b_bno == dblk) {
totalreads++;
} else {
flush(fswritefd, bp);
if (debug) {
readcnt[bp->b_type]++;
clock_gettime(CLOCK_REALTIME_PRECISE, &start);
}
bp->b_errs = blread(fsreadfd, bp->b_un.b_buf, dblk, size);
if (debug) {
clock_gettime(CLOCK_REALTIME_PRECISE, &finish);
timespecsub(&finish, &start);
timespecadd(&readtime[bp->b_type], &finish);
}
bp->b_bno = dblk;
bp->b_size = size;
}
}
void
flush(int fd, struct bufarea *bp)
{
int i, j;
if (!bp->b_dirty)
return;
bp->b_dirty = 0;
if (fswritefd < 0) {
pfatal("WRITING IN READ_ONLY MODE.\n");
return;
}
if (bp->b_errs != 0)
pfatal("WRITING %sZERO'ED BLOCK %lld TO DISK\n",
(bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ",
(long long)bp->b_bno);
bp->b_errs = 0;
blwrite(fd, bp->b_un.b_buf, bp->b_bno, bp->b_size);
if (bp != &sblk)
return;
for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
blwrite(fswritefd, (char *)sblock.fs_csp + i,
fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
MIN(sblock.fs_cssize - i, sblock.fs_bsize));
}
}
void
rwerror(const char *mesg, ufs2_daddr_t blk)
{
if (bkgrdcheck)
exit(EEXIT);
if (preen == 0)
printf("\n");
pfatal("CANNOT %s: %ld", mesg, (long)blk);
if (reply("CONTINUE") == 0)
exit(EEXIT);
}
void
ckfini(int markclean)
{
struct bufarea *bp, *nbp;
int ofsmodified, cnt;
if (bkgrdflag) {
unlink(snapname);
if ((!(sblock.fs_flags & FS_UNCLEAN)) != markclean) {
cmd.value = FS_UNCLEAN;
cmd.size = markclean ? -1 : 1;
if (sysctlbyname("vfs.ffs.setflags", 0, 0,
&cmd, sizeof cmd) == -1)
2003-08-01 11:31:19 +00:00
rwerror("SET FILE SYSTEM FLAGS", FS_UNCLEAN);
if (!preen) {
printf("\n***** FILE SYSTEM MARKED %s *****\n",
markclean ? "CLEAN" : "DIRTY");
if (!markclean)
rerun = 1;
}
} else if (!preen && !markclean) {
printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
rerun = 1;
}
}
if (debug && totalreads > 0)
printf("cache with %d buffers missed %ld of %ld (%d%%)\n",
numbufs, totaldiskreads, totalreads,
(int)(totaldiskreads * 100 / totalreads));
if (fswritefd < 0) {
(void)close(fsreadfd);
return;
}
flush(fswritefd, &sblk);
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
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);
cnt = 0;
TAILQ_FOREACH_REVERSE_SAFE(bp, &bufhead, buflist, b_list, nbp) {
TAILQ_REMOVE(&bufhead, bp, b_list);
cnt++;
flush(fswritefd, bp);
free(bp->b_un.b_buf);
free((char *)bp);
}
if (numbufs != cnt)
errx(EEXIT, "panic: lost %d buffers", numbufs - cnt);
if (cgbufs != NULL) {
for (cnt = 0; cnt < sblock.fs_ncg; cnt++) {
if (cgbufs[cnt].b_un.b_cg == NULL)
continue;
flush(fswritefd, &cgbufs[cnt]);
free(cgbufs[cnt].b_un.b_cg);
}
free(cgbufs);
}
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;
}
}
(void)close(fsreadfd);
(void)close(fswritefd);
}
/*
* Print out I/O statistics.
*/
void
IOstats(char *what)
{
int i;
if (debug == 0)
return;
if (diskreads == 0) {
printf("%s: no I/O\n\n", what);
return;
}
if (startpass.tv_sec == 0)
startpass = startprog;
printf("%s: I/O statistics\n", what);
printIOstats();
totaldiskreads += diskreads;
diskreads = 0;
for (i = 0; i < BT_NUMBUFTYPES; i++) {
timespecadd(&totalreadtime[i], &readtime[i]);
totalreadcnt[i] += readcnt[i];
readtime[i].tv_sec = readtime[i].tv_nsec = 0;
readcnt[i] = 0;
}
clock_gettime(CLOCK_REALTIME_PRECISE, &startpass);
}
void
finalIOstats(void)
{
int i;
if (debug == 0)
return;
printf("Final I/O statistics\n");
totaldiskreads += diskreads;
diskreads = totaldiskreads;
startpass = startprog;
for (i = 0; i < BT_NUMBUFTYPES; i++) {
timespecadd(&totalreadtime[i], &readtime[i]);
totalreadcnt[i] += readcnt[i];
readtime[i] = totalreadtime[i];
readcnt[i] = totalreadcnt[i];
}
printIOstats();
}
static void printIOstats(void)
{
long long msec, totalmsec;
int i;
clock_gettime(CLOCK_REALTIME_PRECISE, &finishpass);
timespecsub(&finishpass, &startpass);
printf("Running time: %jd.%03ld sec\n",
(intmax_t)finishpass.tv_sec, finishpass.tv_nsec / 1000000);
printf("buffer reads by type:\n");
for (totalmsec = 0, i = 0; i < BT_NUMBUFTYPES; i++)
totalmsec += readtime[i].tv_sec * 1000 +
readtime[i].tv_nsec / 1000000;
if (totalmsec == 0)
totalmsec = 1;
for (i = 0; i < BT_NUMBUFTYPES; i++) {
if (readcnt[i] == 0)
continue;
msec =
readtime[i].tv_sec * 1000 + readtime[i].tv_nsec / 1000000;
printf("%21s:%8ld %2ld.%ld%% %4jd.%03ld sec %2lld.%lld%%\n",
buftype[i], readcnt[i], readcnt[i] * 100 / diskreads,
(readcnt[i] * 1000 / diskreads) % 10,
(intmax_t)readtime[i].tv_sec, readtime[i].tv_nsec / 1000000,
msec * 100 / totalmsec, (msec * 1000 / totalmsec) % 10);
}
printf("\n");
}
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();
totalreads++;
diskreads++;
if (lseek(fd, offset, 0) < 0)
rwerror("SEEK BLK", blk);
else if (read(fd, buf, (int)size) == size) {
if (bkgrdflag)
slowio_end();
return (0);
}
/*
* This is handled specially here instead of in rwerror because
* rwerror is used for all sorts of errors, not just true read/write
* errors. It should be refactored and fixed.
*/
if (surrender) {
pfatal("CANNOT READ_BLK: %ld", (long)blk);
errx(EEXIT, "ABORTING DUE TO READ ERRORS");
} else
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, ssize_t 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, 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, 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;
}
/*
* Fill a contiguous region with all-zeroes. Note ZEROBUFSIZE is by
* definition a multiple of dev_bsize.
*/
void
blzero(int fd, ufs2_daddr_t blk, long size)
{
static char *zero;
off_t offset, len;
if (fd < 0)
return;
if (zero == NULL) {
zero = calloc(ZEROBUFSIZE, 1);
if (zero == NULL)
errx(EEXIT, "cannot allocate buffer pool");
}
offset = blk * dev_bsize;
if (lseek(fd, offset, 0) < 0)
rwerror("SEEK BLK", blk);
while (size > 0) {
len = MIN(ZEROBUFSIZE, size);
if (write(fd, zero, len) != len)
rwerror("WRITE BLK", blk);
blk += len / dev_bsize;
size -= len;
}
}
/*
* 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 bufarea *cgbp)
{
struct cg *cgp = cgbp->b_un.b_cg;
/*
* 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 = MIN(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);
}
dirty(cgbp);
return (0);
}
/*
* allocate a data block with the specified number of fragments
*/
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
ufs2_daddr_t
allocblk(long frags)
{
int i, j, k, cg, baseblk;
struct bufarea *cgbp;
struct cg *cgp;
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);
cgbp = cgget(cg);
cgp = cgbp->b_un.b_cg;
if (!check_cgmagic(cg, cgbp))
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;
dirty(cgbp);
return (i + j);
}
}
return (0);
}
/*
* Free a previously allocated block
*/
void
This commit adds basic support for the UFS2 filesystem. The UFS2 filesystem expands the inode to 256 bytes to make space for 64-bit block pointers. It also adds a file-creation time field, an ability to use jumbo blocks per inode to allow extent like pointer density, and space for extended attributes (up to twice the filesystem block size worth of attributes, e.g., on a 16K filesystem, there is space for 32K of attributes). UFS2 fully supports and runs existing UFS1 filesystems. New filesystems built using newfs can be built in either UFS1 or UFS2 format using the -O option. In this commit UFS1 is the default format, so if you want to build UFS2 format filesystems, you must specify -O 2. This default will be changed to UFS2 when UFS2 proves itself to be stable. In this commit the boot code for reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c) as there is insufficient space in the boot block. Once the size of the boot block is increased, this code can be defined. Things to note: the definition of SBSIZE has changed to SBLOCKSIZE. The header file <ufs/ufs/dinode.h> must be included before <ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and ufs_lbn_t. Still TODO: Verify that the first level bootstraps work for all the architectures. Convert the utility ffsinfo to understand UFS2 and test growfs. Add support for the extended attribute storage. Update soft updates to ensure integrity of extended attribute storage. Switch the current extended attribute interfaces to use the extended attribute storage. Add the extent like functionality (framework is there, but is currently never used). Sponsored by: DARPA & NAI Labs. Reviewed by: Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
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>
/*
2012-01-07 16:09:33 +00:00
* An unexpected inconsistency occurred.
* 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);
}