2 * Copyright (c) 1980, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 static const char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95";
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
40 #include <sys/types.h>
41 #include <sys/sysctl.h>
43 #include <sys/disklabel.h>
44 #include <sys/ioctl.h>
47 #include <ufs/ufs/dinode.h>
48 #include <ufs/ufs/dir.h>
49 #include <ufs/ffs/fs.h>
64 static void slowio_start(void);
65 static void slowio_end(void);
66 static void printIOstats(void);
68 static long diskreads, totaldiskreads, totalreads; /* Disk cache statistics */
69 static struct timespec startpass, finishpass;
70 struct timeval slowio_starttime;
71 int slowio_delay_usec = 10000; /* Initial IO delay for background fsck */
73 static struct bufarea cgblk; /* backup buffer for cylinder group blocks */
74 static TAILQ_HEAD(buflist, bufarea) bufhead; /* head of buffer cache list */
75 static int numbufs; /* size of buffer cache */
76 static char *buftype[BT_NUMBUFTYPES] = BT_NAMES;
79 ftypeok(union dinode *dp)
81 switch (DIP(dp, di_mode) & IFMT) {
94 printf("bad file type 0%o\n", DIP(dp, di_mode));
100 reply(const char *question)
106 pfatal("INTERNAL ERROR: GOT TO reply()");
107 persevere = !strcmp(question, "CONTINUE");
109 if (!persevere && (nflag || (fswritefd < 0 && bkgrdflag == 0))) {
110 printf("%s? no\n\n", question);
114 if (yflag || (persevere && nflag)) {
115 printf("%s? yes\n\n", question);
119 printf("%s? [yn] ", question);
120 (void) fflush(stdout);
122 while (c != '\n' && getc(stdin) != '\n') {
128 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
130 if (c == 'y' || c == 'Y')
137 * Look up state information for an inode.
142 static struct inostat unallocated = { USTATE, 0, 0 };
143 struct inostatlist *ilp;
147 errx(EEXIT, "inoinfo: inumber %ju out of range",
149 ilp = &inostathead[inum / sblock.fs_ipg];
150 iloff = inum % sblock.fs_ipg;
151 if (iloff >= ilp->il_numalloced)
152 return (&unallocated);
153 return (&ilp->il_stat[iloff]);
157 * Malloc buffers and set up cache.
166 pbp = pdirbp = (struct bufarea *)0;
167 bufp = Malloc((unsigned int)sblock.fs_bsize);
169 errx(EEXIT, "cannot allocate buffer pool");
170 cgblk.b_un.b_buf = bufp;
171 initbarea(&cgblk, BT_CYLGRP);
172 TAILQ_INIT(&bufhead);
174 if (bufcnt < MINBUFS)
176 for (i = 0; i < bufcnt; i++) {
177 bp = (struct bufarea *)Malloc(sizeof(struct bufarea));
178 bufp = Malloc((unsigned int)sblock.fs_bsize);
179 if (bp == NULL || bufp == NULL) {
182 errx(EEXIT, "cannot allocate buffer pool");
184 bp->b_un.b_buf = bufp;
185 TAILQ_INSERT_HEAD(&bufhead, bp, b_list);
186 initbarea(bp, BT_UNKNOWN);
188 numbufs = i; /* save number of buffers */
189 for (i = 0; i < BT_NUMBUFTYPES; i++) {
190 readtime[i].tv_sec = totalreadtime[i].tv_sec = 0;
191 readtime[i].tv_nsec = totalreadtime[i].tv_nsec = 0;
192 readcnt[i] = totalreadcnt[i] = 0;
197 * Manage cylinder group buffers.
199 static struct bufarea *cgbufs; /* header for cylinder group cache */
200 static int flushtries; /* number of tries to reclaim memory */
205 struct bufarea *cgbp;
208 if (cgbufs == NULL) {
209 cgbufs = Calloc(sblock.fs_ncg, sizeof(struct bufarea));
211 errx(EEXIT, "cannot allocate cylinder group buffers");
214 if (cgbp->b_un.b_cg != NULL)
218 cgp = malloc((unsigned int)sblock.fs_cgsize);
220 getblk(&cgblk, cgtod(&sblock, cg), sblock.fs_cgsize);
223 cgbp->b_un.b_cg = cgp;
224 initbarea(cgbp, BT_CYLGRP);
225 getblk(cgbp, cgtod(&sblock, cg), sblock.fs_cgsize);
230 * Attempt to flush a cylinder group cache entry.
231 * Return whether the flush was successful.
236 struct bufarea *cgbp;
238 cgbp = &cgbufs[flushtries++];
239 if (cgbp->b_un.b_cg == NULL)
241 flush(fswritefd, cgbp);
242 free(cgbp->b_un.b_buf);
243 cgbp->b_un.b_buf = NULL;
248 * Manage a cache of directory blocks.
251 getdatablk(ufs2_daddr_t blkno, long size, int type)
255 TAILQ_FOREACH(bp, &bufhead, b_list)
256 if (bp->b_bno == fsbtodb(&sblock, blkno))
258 TAILQ_FOREACH_REVERSE(bp, &bufhead, buflist, b_list)
259 if ((bp->b_flags & B_INUSE) == 0)
262 errx(EEXIT, "deadlocked buffer pool");
264 getblk(bp, blkno, size);
267 if (debug && bp->b_type != type)
268 printf("Buffer type changed from %s to %s\n",
269 buftype[bp->b_type], buftype[type]);
270 TAILQ_REMOVE(&bufhead, bp, b_list);
271 TAILQ_INSERT_HEAD(&bufhead, bp, b_list);
272 bp->b_flags |= B_INUSE;
277 * Timespec operations (from <sys/time.h>).
279 #define timespecsub(vvp, uvp) \
281 (vvp)->tv_sec -= (uvp)->tv_sec; \
282 (vvp)->tv_nsec -= (uvp)->tv_nsec; \
283 if ((vvp)->tv_nsec < 0) { \
285 (vvp)->tv_nsec += 1000000000; \
288 #define timespecadd(vvp, uvp) \
290 (vvp)->tv_sec += (uvp)->tv_sec; \
291 (vvp)->tv_nsec += (uvp)->tv_nsec; \
292 if ((vvp)->tv_nsec >= 1000000000) { \
294 (vvp)->tv_nsec -= 1000000000; \
299 getblk(struct bufarea *bp, ufs2_daddr_t blk, long size)
302 struct timespec start, finish;
304 dblk = fsbtodb(&sblock, blk);
305 if (bp->b_bno == dblk) {
308 flush(fswritefd, bp);
310 readcnt[bp->b_type]++;
311 clock_gettime(CLOCK_REALTIME_PRECISE, &start);
313 bp->b_errs = blread(fsreadfd, bp->b_un.b_buf, dblk, size);
315 clock_gettime(CLOCK_REALTIME_PRECISE, &finish);
316 timespecsub(&finish, &start);
317 timespecadd(&readtime[bp->b_type], &finish);
325 flush(int fd, struct bufarea *bp)
333 pfatal("WRITING IN READ_ONLY MODE.\n");
337 pfatal("WRITING %sZERO'ED BLOCK %lld TO DISK\n",
338 (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ",
339 (long long)bp->b_bno);
341 blwrite(fd, bp->b_un.b_buf, bp->b_bno, bp->b_size);
344 for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
345 blwrite(fswritefd, (char *)sblock.fs_csp + i,
346 fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
347 sblock.fs_cssize - i < sblock.fs_bsize ?
348 sblock.fs_cssize - i : sblock.fs_bsize);
353 rwerror(const char *mesg, ufs2_daddr_t blk)
360 pfatal("CANNOT %s: %ld", mesg, (long)blk);
361 if (reply("CONTINUE") == 0)
366 ckfini(int markclean)
368 struct bufarea *bp, *nbp;
369 int ofsmodified, cnt;
373 if ((!(sblock.fs_flags & FS_UNCLEAN)) != markclean) {
374 cmd.value = FS_UNCLEAN;
375 cmd.size = markclean ? -1 : 1;
376 if (sysctlbyname("vfs.ffs.setflags", 0, 0,
377 &cmd, sizeof cmd) == -1)
378 rwerror("SET FILE SYSTEM FLAGS", FS_UNCLEAN);
380 printf("\n***** FILE SYSTEM MARKED %s *****\n",
381 markclean ? "CLEAN" : "DIRTY");
385 } else if (!preen && !markclean) {
386 printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
390 if (debug && totalreads > 0)
391 printf("cache with %d buffers missed %ld of %ld (%d%%)\n",
392 numbufs, totaldiskreads, totalreads,
393 (int)(totaldiskreads * 100 / totalreads));
395 (void)close(fsreadfd);
398 flush(fswritefd, &sblk);
399 if (havesb && cursnapshot == 0 && sblock.fs_magic == FS_UFS2_MAGIC &&
400 sblk.b_bno != sblock.fs_sblockloc / dev_bsize &&
401 !preen && reply("UPDATE STANDARD SUPERBLOCK")) {
402 sblk.b_bno = sblock.fs_sblockloc / dev_bsize;
404 flush(fswritefd, &sblk);
406 flush(fswritefd, &cgblk);
407 free(cgblk.b_un.b_buf);
409 TAILQ_FOREACH_REVERSE_SAFE(bp, &bufhead, buflist, b_list, nbp) {
410 TAILQ_REMOVE(&bufhead, bp, b_list);
412 flush(fswritefd, bp);
413 free(bp->b_un.b_buf);
417 errx(EEXIT, "panic: lost %d buffers", numbufs - cnt);
418 for (cnt = 0; cnt < sblock.fs_ncg; cnt++) {
419 if (cgbufs[cnt].b_un.b_cg == NULL)
421 flush(fswritefd, &cgbufs[cnt]);
422 free(cgbufs[cnt].b_un.b_cg);
425 pbp = pdirbp = (struct bufarea *)0;
426 if (cursnapshot == 0 && sblock.fs_clean != markclean) {
427 if ((sblock.fs_clean = markclean) != 0) {
428 sblock.fs_flags &= ~(FS_UNCLEAN | FS_NEEDSFSCK);
429 sblock.fs_pendingblocks = 0;
430 sblock.fs_pendinginodes = 0;
433 ofsmodified = fsmodified;
434 flush(fswritefd, &sblk);
435 fsmodified = ofsmodified;
437 printf("\n***** FILE SYSTEM MARKED %s *****\n",
438 markclean ? "CLEAN" : "DIRTY");
444 printf("\n***** FILE SYSTEM IS CLEAN *****\n");
446 printf("\n***** FILE SYSTEM STILL DIRTY *****\n");
450 (void)close(fsreadfd);
451 (void)close(fswritefd);
455 * Print out I/O statistics.
464 if (diskreads == 0) {
465 printf("%s: no I/O\n\n", what);
468 if (startpass.tv_sec == 0)
469 startpass = startprog;
470 printf("%s: I/O statistics\n", what);
472 totaldiskreads += diskreads;
474 for (i = 0; i < BT_NUMBUFTYPES; i++) {
475 timespecadd(&totalreadtime[i], &readtime[i]);
476 totalreadcnt[i] += readcnt[i];
477 readtime[i].tv_sec = readtime[i].tv_nsec = 0;
480 clock_gettime(CLOCK_REALTIME_PRECISE, &startpass);
490 printf("Final I/O statistics\n");
491 totaldiskreads += diskreads;
492 diskreads = totaldiskreads;
493 startpass = startprog;
494 for (i = 0; i < BT_NUMBUFTYPES; i++) {
495 timespecadd(&totalreadtime[i], &readtime[i]);
496 totalreadcnt[i] += readcnt[i];
497 readtime[i] = totalreadtime[i];
498 readcnt[i] = totalreadcnt[i];
503 static void printIOstats(void)
505 long long msec, totalmsec;
508 clock_gettime(CLOCK_REALTIME_PRECISE, &finishpass);
509 timespecsub(&finishpass, &startpass);
510 printf("Running time: %jd.%03ld sec\n",
511 (intmax_t)finishpass.tv_sec, finishpass.tv_nsec / 1000000);
512 printf("buffer reads by type:\n");
513 for (totalmsec = 0, i = 0; i < BT_NUMBUFTYPES; i++)
514 totalmsec += readtime[i].tv_sec * 1000 +
515 readtime[i].tv_nsec / 1000000;
518 for (i = 0; i < BT_NUMBUFTYPES; i++) {
522 readtime[i].tv_sec * 1000 + readtime[i].tv_nsec / 1000000;
523 printf("%21s:%8ld %2ld.%ld%% %4jd.%03ld sec %2lld.%lld%%\n",
524 buftype[i], readcnt[i], readcnt[i] * 100 / diskreads,
525 (readcnt[i] * 1000 / diskreads) % 10,
526 (intmax_t)readtime[i].tv_sec, readtime[i].tv_nsec / 1000000,
527 msec * 100 / totalmsec, (msec * 1000 / totalmsec) % 10);
533 blread(int fd, char *buf, ufs2_daddr_t blk, long size)
545 if (lseek(fd, offset, 0) < 0)
546 rwerror("SEEK BLK", blk);
547 else if (read(fd, buf, (int)size) == size) {
554 * This is handled specially here instead of in rwerror because
555 * rwerror is used for all sorts of errors, not just true read/write
556 * errors. It should be refactored and fixed.
559 pfatal("CANNOT READ_BLK: %ld", (long)blk);
560 errx(EEXIT, "ABORTING DUE TO READ ERRORS");
562 rwerror("READ BLK", blk);
564 if (lseek(fd, offset, 0) < 0)
565 rwerror("SEEK BLK", blk);
567 memset(buf, 0, (size_t)size);
568 printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:");
569 for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) {
570 if (read(fd, cp, (int)secsize) != secsize) {
571 (void)lseek(fd, offset + i + secsize, 0);
572 if (secsize != dev_bsize && dev_bsize != 1)
573 printf(" %jd (%jd),",
574 (intmax_t)(blk * dev_bsize + i) / secsize,
575 (intmax_t)blk + i / dev_bsize);
577 printf(" %jd,", (intmax_t)blk + i / dev_bsize);
588 blwrite(int fd, char *buf, ufs2_daddr_t blk, ssize_t size)
598 if (lseek(fd, offset, 0) < 0)
599 rwerror("SEEK BLK", blk);
600 else if (write(fd, buf, size) == size) {
605 rwerror("WRITE BLK", blk);
606 if (lseek(fd, offset, 0) < 0)
607 rwerror("SEEK BLK", blk);
608 printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:");
609 for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize)
610 if (write(fd, cp, dev_bsize) != dev_bsize) {
611 (void)lseek(fd, offset + i + dev_bsize, 0);
612 printf(" %jd,", (intmax_t)blk + i / dev_bsize);
619 blerase(int fd, ufs2_daddr_t blk, long size)
625 ioarg[0] = blk * dev_bsize;
627 ioctl(fd, DIOCGDELETE, ioarg);
628 /* we don't really care if we succeed or not */
633 * Fill a contiguous region with all-zeroes. Note ZEROBUFSIZE is by
634 * definition a multiple of dev_bsize.
637 blzero(int fd, ufs2_daddr_t blk, long size)
645 zero = calloc(ZEROBUFSIZE, 1);
647 errx(EEXIT, "cannot allocate buffer pool");
649 offset = blk * dev_bsize;
650 if (lseek(fd, offset, 0) < 0)
651 rwerror("SEEK BLK", blk);
653 len = size > ZEROBUFSIZE ? ZEROBUFSIZE : size;
654 if (write(fd, zero, len) != len)
655 rwerror("WRITE BLK", blk);
656 blk += len / dev_bsize;
662 * Verify cylinder group's magic number and other parameters. If the
663 * test fails, offer an option to rebuild the whole cylinder group.
666 check_cgmagic(int cg, struct bufarea *cgbp)
668 struct cg *cgp = cgbp->b_un.b_cg;
671 * Extended cylinder group checks.
673 if (cg_chkmagic(cgp) &&
674 ((sblock.fs_magic == FS_UFS1_MAGIC &&
675 cgp->cg_old_niblk == sblock.fs_ipg &&
676 cgp->cg_ndblk <= sblock.fs_fpg &&
677 cgp->cg_old_ncyl <= sblock.fs_old_cpg) ||
678 (sblock.fs_magic == FS_UFS2_MAGIC &&
679 cgp->cg_niblk == sblock.fs_ipg &&
680 cgp->cg_ndblk <= sblock.fs_fpg &&
681 cgp->cg_initediblk <= sblock.fs_ipg))) {
684 pfatal("CYLINDER GROUP %d: BAD MAGIC NUMBER", cg);
685 if (!reply("REBUILD CYLINDER GROUP")) {
686 printf("YOU WILL NEED TO RERUN FSCK.\n");
691 * Zero out the cylinder group and then initialize critical fields.
692 * Bit maps and summaries will be recalculated by later passes.
694 memset(cgp, 0, (size_t)sblock.fs_cgsize);
695 cgp->cg_magic = CG_MAGIC;
697 cgp->cg_niblk = sblock.fs_ipg;
698 cgp->cg_initediblk = sblock.fs_ipg < 2 * INOPB(&sblock) ?
699 sblock.fs_ipg : 2 * INOPB(&sblock);
700 if (cgbase(&sblock, cg) + sblock.fs_fpg < sblock.fs_size)
701 cgp->cg_ndblk = sblock.fs_fpg;
703 cgp->cg_ndblk = sblock.fs_size - cgbase(&sblock, cg);
704 cgp->cg_iusedoff = &cgp->cg_space[0] - (u_char *)(&cgp->cg_firstfield);
705 if (sblock.fs_magic == FS_UFS1_MAGIC) {
707 cgp->cg_initediblk = 0;
708 cgp->cg_old_ncyl = sblock.fs_old_cpg;
709 cgp->cg_old_niblk = sblock.fs_ipg;
710 cgp->cg_old_btotoff = cgp->cg_iusedoff;
711 cgp->cg_old_boff = cgp->cg_old_btotoff +
712 sblock.fs_old_cpg * sizeof(int32_t);
713 cgp->cg_iusedoff = cgp->cg_old_boff +
714 sblock.fs_old_cpg * sizeof(u_int16_t);
716 cgp->cg_freeoff = cgp->cg_iusedoff + howmany(sblock.fs_ipg, CHAR_BIT);
717 cgp->cg_nextfreeoff = cgp->cg_freeoff + howmany(sblock.fs_fpg,CHAR_BIT);
718 if (sblock.fs_contigsumsize > 0) {
719 cgp->cg_nclusterblks = cgp->cg_ndblk / sblock.fs_frag;
720 cgp->cg_clustersumoff =
721 roundup(cgp->cg_nextfreeoff, sizeof(u_int32_t));
722 cgp->cg_clustersumoff -= sizeof(u_int32_t);
723 cgp->cg_clusteroff = cgp->cg_clustersumoff +
724 (sblock.fs_contigsumsize + 1) * sizeof(u_int32_t);
725 cgp->cg_nextfreeoff = cgp->cg_clusteroff +
726 howmany(fragstoblks(&sblock, sblock.fs_fpg), CHAR_BIT);
733 * allocate a data block with the specified number of fragments
738 int i, j, k, cg, baseblk;
739 struct bufarea *cgbp;
742 if (frags <= 0 || frags > sblock.fs_frag)
744 for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) {
745 for (j = 0; j <= sblock.fs_frag - frags; j++) {
748 for (k = 1; k < frags; k++)
749 if (testbmap(i + j + k))
755 cg = dtog(&sblock, i + j);
757 cgp = cgbp->b_un.b_cg;
758 if (!check_cgmagic(cg, cgbp))
760 baseblk = dtogd(&sblock, i + j);
761 for (k = 0; k < frags; k++) {
763 clrbit(cg_blksfree(cgp), baseblk + k);
766 if (frags == sblock.fs_frag)
767 cgp->cg_cs.cs_nbfree--;
769 cgp->cg_cs.cs_nffree -= frags;
778 * Free a previously allocated block
781 freeblk(ufs2_daddr_t blkno, long frags)
783 struct inodesc idesc;
785 idesc.id_blkno = blkno;
786 idesc.id_numfrags = frags;
787 (void)pass4check(&idesc);
790 /* Slow down IO so as to leave some disk bandwidth for other processes */
795 /* Delay one in every 8 operations */
796 slowio_pollcnt = (slowio_pollcnt + 1) & 7;
797 if (slowio_pollcnt == 0) {
798 gettimeofday(&slowio_starttime, NULL);
808 if (slowio_pollcnt != 0)
811 /* Update the slowdown interval. */
812 gettimeofday(&tv, NULL);
813 delay_usec = (tv.tv_sec - slowio_starttime.tv_sec) * 1000000 +
814 (tv.tv_usec - slowio_starttime.tv_usec);
817 if (delay_usec > 2500000)
818 delay_usec = 2500000;
819 slowio_delay_usec = (slowio_delay_usec * 63 + delay_usec) >> 6;
820 /* delay by 8 times the average IO delay */
821 if (slowio_delay_usec > 64)
822 usleep(slowio_delay_usec * 8);
829 getpathname(char *namebuf, ino_t curdir, ino_t ino)
833 struct inodesc idesc;
836 if (curdir == ino && ino == ROOTINO) {
837 (void)strcpy(namebuf, "/");
840 if (busy || !INO_IS_DVALID(curdir)) {
841 (void)strcpy(namebuf, "?");
845 memset(&idesc, 0, sizeof(struct inodesc));
846 idesc.id_type = DATA;
847 idesc.id_fix = IGNORE;
848 cp = &namebuf[MAXPATHLEN - 1];
851 idesc.id_parent = curdir;
854 while (ino != ROOTINO) {
855 idesc.id_number = ino;
856 idesc.id_func = findino;
857 idesc.id_name = strdup("..");
858 if ((ckinode(ginode(ino), &idesc) & FOUND) == 0)
861 idesc.id_number = idesc.id_parent;
862 idesc.id_parent = ino;
863 idesc.id_func = findname;
864 idesc.id_name = namebuf;
865 if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0)
867 len = strlen(namebuf);
869 memmove(cp, namebuf, (size_t)len);
871 if (cp < &namebuf[MAXNAMLEN])
873 ino = idesc.id_number;
878 memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp));
882 catch(int sig __unused)
890 * When preening, allow a single quit to signal
891 * a special exit after file system checks complete
892 * so that reboot sequence may be interrupted.
895 catchquit(int sig __unused)
897 printf("returning to single-user after file system check\n");
899 (void)signal(SIGQUIT, SIG_DFL);
903 * determine whether an inode should be fixed.
906 dofix(struct inodesc *idesc, const char *msg)
909 switch (idesc->id_fix) {
912 if (idesc->id_type == DATA)
913 direrror(idesc->id_number, msg);
917 printf(" (SALVAGED)\n");
921 if (reply("SALVAGE") == 0) {
922 idesc->id_fix = NOFIX;
936 errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix);
945 * An unexpected inconsistency occurred.
946 * Die if preening or file system is running with soft dependency protocol,
947 * otherwise just print message and continue.
950 pfatal(const char *fmt, ...)
955 (void)vfprintf(stdout, fmt, ap);
958 (void)fprintf(stdout,
959 "\nUNEXPECTED SOFT UPDATE INCONSISTENCY\n");
961 * Force foreground fsck to clean up inconsistency.
964 cmd.value = FS_NEEDSFSCK;
966 if (sysctlbyname("vfs.ffs.setflags", 0, 0,
967 &cmd, sizeof cmd) == -1)
968 pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n");
969 fprintf(stdout, "CANNOT RUN IN BACKGROUND\n");
975 if (cdevname == NULL)
976 cdevname = strdup("fsck");
977 (void)fprintf(stdout, "%s: ", cdevname);
978 (void)vfprintf(stdout, fmt, ap);
979 (void)fprintf(stdout,
980 "\n%s: UNEXPECTED%sINCONSISTENCY; RUN fsck MANUALLY.\n",
981 cdevname, usedsoftdep ? " SOFT UPDATE " : " ");
983 * Force foreground fsck to clean up inconsistency.
986 cmd.value = FS_NEEDSFSCK;
988 if (sysctlbyname("vfs.ffs.setflags", 0, 0,
989 &cmd, sizeof cmd) == -1)
990 pwarn("CANNOT SET FS_NEEDSFSCK FLAG\n");
997 * Pwarn just prints a message when not preening or running soft dependency
998 * protocol, or a warning (preceded by filename) when preening.
1001 pwarn(const char *fmt, ...)
1006 (void)fprintf(stdout, "%s: ", cdevname);
1007 (void)vfprintf(stdout, fmt, ap);
1012 * Stub for routines from kernel.
1015 panic(const char *fmt, ...)
1019 pfatal("INTERNAL INCONSISTENCY:");
1020 (void)vfprintf(stdout, fmt, ap);