utilities.c revision 1.47
1 /* $NetBSD: utilities.c,v 1.47 2004/06/12 01:35:46 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)utilities.c 8.6 (Berkeley) 5/19/95"; 36 #else 37 __RCSID("$NetBSD: utilities.c,v 1.47 2004/06/12 01:35:46 mycroft Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include <sys/param.h> 42 #include <sys/time.h> 43 44 #include <ufs/ufs/dinode.h> 45 #include <ufs/ufs/dir.h> 46 #include <ufs/ffs/fs.h> 47 #include <ufs/ffs/ffs_extern.h> 48 #include <ufs/ufs/ufs_bswap.h> 49 50 #include <ctype.h> 51 #include <err.h> 52 #include <errno.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <unistd.h> 57 58 #include "fsutil.h" 59 #include "fsck.h" 60 #include "extern.h" 61 62 long diskreads, totalreads; /* Disk cache statistics */ 63 64 static void rwerror __P((char *, daddr_t)); 65 66 extern int returntosingle; 67 68 int 69 ftypeok(dp) 70 union dinode *dp; 71 { 72 switch (iswap16(DIP(dp, mode)) & IFMT) { 73 74 case IFDIR: 75 case IFREG: 76 case IFBLK: 77 case IFCHR: 78 case IFLNK: 79 case IFSOCK: 80 case IFIFO: 81 return (1); 82 83 default: 84 if (debug) 85 printf("bad file type 0%o\n", iswap16(DIP(dp, mode))); 86 return (0); 87 } 88 } 89 90 int 91 reply(question) 92 char *question; 93 { 94 int persevere; 95 char c; 96 97 if (preen) 98 pfatal("INTERNAL ERROR: GOT TO reply()"); 99 persevere = !strcmp(question, "CONTINUE"); 100 printf("\n"); 101 if (!persevere && (nflag || fswritefd < 0)) { 102 printf("%s? no\n\n", question); 103 resolved = 0; 104 return (0); 105 } 106 if (yflag || (persevere && nflag)) { 107 printf("%s? yes\n\n", question); 108 return (1); 109 } 110 do { 111 printf("%s? [yn] ", question); 112 (void) fflush(stdout); 113 c = getc(stdin); 114 while (c != '\n' && getc(stdin) != '\n') { 115 if (feof(stdin)) { 116 resolved = 0; 117 return (0); 118 } 119 } 120 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N'); 121 printf("\n"); 122 if (c == 'y' || c == 'Y') 123 return (1); 124 resolved = 0; 125 return (0); 126 } 127 128 /* 129 * Malloc buffers and set up cache. 130 */ 131 void 132 bufinit() 133 { 134 struct bufarea *bp; 135 long bufcnt, i; 136 char *bufp; 137 138 pbp = pdirbp = (struct bufarea *)0; 139 bufp = malloc((unsigned int)sblock->fs_bsize); 140 if (bufp == 0) 141 errx(EEXIT, "cannot allocate buffer pool"); 142 cgblk.b_un.b_buf = bufp; 143 initbarea(&cgblk); 144 bufp = malloc((unsigned int)APPLEUFS_LABEL_SIZE); 145 if (bufp == 0) 146 errx(EEXIT, "cannot allocate buffer pool"); 147 appleufsblk.b_un.b_buf = bufp; 148 initbarea(&appleufsblk); 149 bufhead.b_next = bufhead.b_prev = &bufhead; 150 bufcnt = MAXBUFSPACE / sblock->fs_bsize; 151 if (bufcnt < MINBUFS) 152 bufcnt = MINBUFS; 153 for (i = 0; i < bufcnt; i++) { 154 bp = (struct bufarea *)malloc(sizeof(struct bufarea)); 155 bufp = malloc((unsigned int)sblock->fs_bsize); 156 if (bp == NULL || bufp == NULL) { 157 if (i >= MINBUFS) 158 break; 159 errx(EEXIT, "cannot allocate buffer pool"); 160 } 161 bp->b_un.b_buf = bufp; 162 bp->b_prev = &bufhead; 163 bp->b_next = bufhead.b_next; 164 bufhead.b_next->b_prev = bp; 165 bufhead.b_next = bp; 166 initbarea(bp); 167 } 168 bufhead.b_size = i; /* save number of buffers */ 169 } 170 171 /* 172 * Manage a cache of directory blocks. 173 */ 174 struct bufarea * 175 getdatablk(blkno, size) 176 daddr_t blkno; 177 long size; 178 { 179 struct bufarea *bp; 180 181 for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next) 182 if (bp->b_bno == fsbtodb(sblock, blkno)) 183 goto foundit; 184 for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev) 185 if ((bp->b_flags & B_INUSE) == 0) 186 break; 187 if (bp == &bufhead) 188 errx(EEXIT, "deadlocked buffer pool"); 189 /* fall through */ 190 foundit: 191 getblk(bp, blkno, size); 192 bp->b_prev->b_next = bp->b_next; 193 bp->b_next->b_prev = bp->b_prev; 194 bp->b_prev = &bufhead; 195 bp->b_next = bufhead.b_next; 196 bufhead.b_next->b_prev = bp; 197 bufhead.b_next = bp; 198 bp->b_flags |= B_INUSE; 199 return (bp); 200 } 201 202 void 203 getblk(bp, blk, size) 204 struct bufarea *bp; 205 daddr_t blk; 206 long size; 207 { 208 daddr_t dblk; 209 210 dblk = fsbtodb(sblock, blk); 211 totalreads++; 212 if (bp->b_bno != dblk) { 213 flush(fswritefd, bp); 214 diskreads++; 215 bp->b_errs = bread(fsreadfd, bp->b_un.b_buf, dblk, size); 216 bp->b_bno = dblk; 217 bp->b_size = size; 218 } 219 } 220 221 void 222 flush(fd, bp) 223 int fd; 224 struct bufarea *bp; 225 { 226 int i, j; 227 struct csum *ccsp; 228 229 if (!bp->b_dirty) 230 return; 231 if (bp->b_errs != 0) 232 pfatal("WRITING %sZERO'ED BLOCK %lld TO DISK\n", 233 (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ", 234 (long long)bp->b_bno); 235 bp->b_dirty = 0; 236 bp->b_errs = 0; 237 bwrite(fd, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size); 238 if (bp != &sblk) 239 return; 240 for (i = 0, j = 0; i < sblock->fs_cssize; i += sblock->fs_bsize, j++) { 241 int size = sblock->fs_cssize - i < sblock->fs_bsize ? 242 sblock->fs_cssize - i : sblock->fs_bsize; 243 ccsp = (struct csum *)((char *)sblock->fs_csp + i); 244 if (needswap) 245 ffs_csum_swap(ccsp, ccsp, size); 246 bwrite(fswritefd, (char *)ccsp, 247 fsbtodb(sblock, sblock->fs_csaddr + j * sblock->fs_frag), 248 size); 249 if (needswap) 250 ffs_csum_swap(ccsp, ccsp, size); 251 } 252 } 253 254 static void 255 rwerror(mesg, blk) 256 char *mesg; 257 daddr_t blk; 258 { 259 260 if (preen == 0) 261 printf("\n"); 262 pfatal("CANNOT %s: BLK %lld", mesg, (long long)blk); 263 if (reply("CONTINUE") == 0) 264 exit(EEXIT); 265 } 266 267 void 268 ckfini() 269 { 270 struct bufarea *bp, *nbp; 271 int ofsmodified, cnt = 0; 272 273 if (fswritefd < 0) { 274 (void)close(fsreadfd); 275 return; 276 } 277 flush(fswritefd, &sblk); 278 if (havesb && bflag != 0 && 279 (preen || reply("UPDATE STANDARD SUPERBLOCK"))) { 280 if (preen) 281 pwarn("UPDATING STANDARD SUPERBLOCK\n"); 282 if (!is_ufs2 && (sblock->fs_old_flags & FS_FLAGS_UPDATED) == 0) 283 sblk.b_bno = SBLOCK_UFS1 / dev_bsize; 284 else 285 sblk.b_bno = sblock->fs_sblockloc / dev_bsize; 286 sbdirty(); 287 flush(fswritefd, &sblk); 288 } 289 flush(fswritefd, &appleufsblk); 290 free(appleufsblk.b_un.b_buf); 291 flush(fswritefd, &cgblk); 292 free(cgblk.b_un.b_buf); 293 for (bp = bufhead.b_prev; bp && bp != &bufhead; bp = nbp) { 294 cnt++; 295 flush(fswritefd, bp); 296 nbp = bp->b_prev; 297 free(bp->b_un.b_buf); 298 free((char *)bp); 299 } 300 if (bufhead.b_size != cnt) 301 errx(EEXIT, "Panic: lost %d buffers", bufhead.b_size - cnt); 302 pbp = pdirbp = (struct bufarea *)0; 303 if (markclean && (sblock->fs_clean & FS_ISCLEAN) == 0) { 304 /* 305 * Mark the file system as clean, and sync the superblock. 306 */ 307 if (preen) 308 pwarn("MARKING FILE SYSTEM CLEAN\n"); 309 else if (!reply("MARK FILE SYSTEM CLEAN")) 310 markclean = 0; 311 if (markclean) { 312 sblock->fs_clean = FS_ISCLEAN; 313 sblock->fs_pendingblocks = 0; 314 sblock->fs_pendinginodes = 0; 315 sbdirty(); 316 ofsmodified = fsmodified; 317 flush(fswritefd, &sblk); 318 #if LITE2BORKEN 319 fsmodified = ofsmodified; 320 #endif 321 if (!preen) 322 printf( 323 "\n***** FILE SYSTEM MARKED CLEAN *****\n"); 324 } 325 } 326 if (debug) 327 printf("cache missed %ld of %ld (%d%%)\n", diskreads, 328 totalreads, (int)(diskreads * 100 / totalreads)); 329 (void)close(fsreadfd); 330 (void)close(fswritefd); 331 } 332 333 int 334 bread(fd, buf, blk, size) 335 int fd; 336 char *buf; 337 daddr_t blk; 338 long size; 339 { 340 char *cp; 341 int i, errs; 342 off_t offset; 343 344 offset = blk; 345 offset *= dev_bsize; 346 if (pread(fd, buf, (int)size, offset) == size) 347 return (0); 348 rwerror("READ", blk); 349 errs = 0; 350 memset(buf, 0, (size_t)size); 351 printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:"); 352 for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) { 353 if (pread(fd, cp, (int)secsize, offset + i) != secsize) { 354 if (secsize != dev_bsize && dev_bsize != 1) 355 printf(" %lld (%lld),", 356 (long long)((blk*dev_bsize + i) / secsize), 357 (long long)(blk + i / dev_bsize)); 358 else 359 printf(" %lld,", 360 (long long)(blk + i / dev_bsize)); 361 errs++; 362 } 363 } 364 printf("\n"); 365 return (errs); 366 } 367 368 void 369 bwrite(fd, buf, blk, size) 370 int fd; 371 char *buf; 372 daddr_t blk; 373 long size; 374 { 375 int i; 376 char *cp; 377 off_t offset; 378 379 if (fd < 0) 380 return; 381 offset = blk; 382 offset *= dev_bsize; 383 if (pwrite(fd, buf, (int)size, offset) == size) { 384 fsmodified = 1; 385 return; 386 } 387 rwerror("WRITE", blk); 388 printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:"); 389 for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize) 390 if (pwrite(fd, cp, (int)dev_bsize, offset + i) != dev_bsize) 391 printf(" %lld,", (long long)(blk + i / dev_bsize)); 392 printf("\n"); 393 return; 394 } 395 396 /* 397 * allocate a data block with the specified number of fragments 398 */ 399 daddr_t 400 allocblk(frags) 401 long frags; 402 { 403 int i, j, k, cg, baseblk; 404 struct cg *cgp = cgrp; 405 406 if (frags <= 0 || frags > sblock->fs_frag) 407 return (0); 408 for (i = 0; i < maxfsblock - sblock->fs_frag; i += sblock->fs_frag) { 409 for (j = 0; j <= sblock->fs_frag - frags; j++) { 410 if (testbmap(i + j)) 411 continue; 412 for (k = 1; k < frags; k++) 413 if (testbmap(i + j + k)) 414 break; 415 if (k < frags) { 416 j += k; 417 continue; 418 } 419 cg = dtog(sblock, i + j); 420 getblk(&cgblk, cgtod(sblock, cg), sblock->fs_cgsize); 421 memcpy(cgp, cgblk.b_un.b_cg, sblock->fs_cgsize); 422 if ((doswap && !needswap) || (!doswap && needswap)) 423 ffs_cg_swap(cgblk.b_un.b_cg, cgp, sblock); 424 if (!cg_chkmagic(cgp, 0)) 425 pfatal("CG %d: ALLOCBLK: BAD MAGIC NUMBER\n", 426 cg); 427 baseblk = dtogd(sblock, i + j); 428 for (k = 0; k < frags; k++) { 429 setbmap(i + j + k); 430 clrbit(cg_blksfree(cgp, 0), baseblk + k); 431 } 432 n_blks += frags; 433 if (frags == sblock->fs_frag) 434 cgp->cg_cs.cs_nbfree--; 435 else 436 cgp->cg_cs.cs_nffree -= frags; 437 cgdirty(); 438 return (i + j); 439 } 440 } 441 return (0); 442 } 443 444 /* 445 * Free a previously allocated block 446 */ 447 void 448 freeblk(blkno, frags) 449 daddr_t blkno; 450 long frags; 451 { 452 struct inodesc idesc; 453 454 idesc.id_blkno = blkno; 455 idesc.id_numfrags = frags; 456 (void)pass4check(&idesc); 457 } 458 459 /* 460 * Find a pathname 461 */ 462 void 463 getpathname(namebuf, namebuflen, curdir, ino) 464 char *namebuf; 465 size_t namebuflen; 466 ino_t curdir, ino; 467 { 468 int len; 469 char *cp; 470 struct inodesc idesc; 471 static int busy = 0; 472 struct inostat *info; 473 474 if (curdir == ino && ino == ROOTINO) { 475 (void)strlcpy(namebuf, "/", namebuflen); 476 return; 477 } 478 info = inoinfo(curdir); 479 if (busy || (info->ino_state != DSTATE && info->ino_state != DFOUND)) { 480 (void)strlcpy(namebuf, "?", namebuflen); 481 return; 482 } 483 busy = 1; 484 memset(&idesc, 0, sizeof(struct inodesc)); 485 idesc.id_type = DATA; 486 idesc.id_fix = IGNORE; 487 cp = &namebuf[MAXPATHLEN - 1]; 488 *cp = '\0'; 489 if (curdir != ino) { 490 idesc.id_parent = curdir; 491 goto namelookup; 492 } 493 while (ino != ROOTINO) { 494 idesc.id_number = ino; 495 idesc.id_func = findino; 496 idesc.id_name = ".."; 497 if ((ckinode(ginode(ino), &idesc) & FOUND) == 0) 498 break; 499 namelookup: 500 idesc.id_number = idesc.id_parent; 501 idesc.id_parent = ino; 502 idesc.id_func = findname; 503 idesc.id_name = namebuf; 504 if ((ckinode(ginode(idesc.id_number), &idesc)&FOUND) == 0) 505 break; 506 len = strlen(namebuf); 507 cp -= len; 508 memmove(cp, namebuf, (size_t)len); 509 *--cp = '/'; 510 if (cp < &namebuf[MAXNAMLEN]) 511 break; 512 ino = idesc.id_number; 513 } 514 busy = 0; 515 if (ino != ROOTINO) 516 *--cp = '?'; 517 memmove(namebuf, cp, (size_t)(&namebuf[MAXPATHLEN] - cp)); 518 } 519 520 void 521 catch(sig) 522 int sig; 523 { 524 if (!doinglevel2) { 525 markclean = 0; 526 ckfini(); 527 } 528 exit(12); 529 } 530 531 /* 532 * When preening, allow a single quit to signal 533 * a special exit after filesystem checks complete 534 * so that reboot sequence may be interrupted. 535 */ 536 void 537 catchquit(sig) 538 int sig; 539 { 540 int errsave = errno; 541 542 printf("returning to single-user after file system check\n"); 543 returntosingle = 1; 544 (void)signal(SIGQUIT, SIG_DFL); 545 errno = errsave; 546 } 547 548 /* 549 * Ignore a single quit signal; wait and flush just in case. 550 * Used by child processes in preen. 551 */ 552 void 553 voidquit(sig) 554 int sig; 555 { 556 int errsave = errno; 557 558 sleep(1); 559 (void)signal(SIGQUIT, SIG_IGN); 560 (void)signal(SIGQUIT, SIG_DFL); 561 errno = errsave; 562 } 563 564 /* 565 * determine whether an inode should be fixed. 566 */ 567 int 568 dofix(idesc, msg) 569 struct inodesc *idesc; 570 char *msg; 571 { 572 573 switch (idesc->id_fix) { 574 575 case DONTKNOW: 576 if (idesc->id_type == DATA) 577 direrror(idesc->id_number, msg); 578 else 579 pwarn("%s", msg); 580 if (preen) { 581 printf(" (SALVAGED)\n"); 582 idesc->id_fix = FIX; 583 return (ALTERED); 584 } 585 if (reply("SALVAGE") == 0) { 586 idesc->id_fix = NOFIX; 587 return (0); 588 } 589 idesc->id_fix = FIX; 590 return (ALTERED); 591 592 case FIX: 593 return (ALTERED); 594 595 case NOFIX: 596 case IGNORE: 597 return (0); 598 599 default: 600 errx(EEXIT, "UNKNOWN INODESC FIX MODE %d", idesc->id_fix); 601 } 602 /* NOTREACHED */ 603 return (0); 604 } 605 606 void 607 copyback_cg(blk) 608 struct bufarea *blk; 609 { 610 611 memcpy(blk->b_un.b_cg, cgrp, sblock->fs_cgsize); 612 if (needswap) 613 ffs_cg_swap(cgrp, blk->b_un.b_cg, sblock); 614 } 615 616 void 617 infohandler(int sig) 618 { 619 got_siginfo = 1; 620 } 621 622 /* 623 * Look up state information for an inode. 624 */ 625 struct inostat * 626 inoinfo(ino_t inum) 627 { 628 static struct inostat unallocated = { USTATE, 0, 0 }; 629 struct inostatlist *ilp; 630 int iloff; 631 632 if (inum > maxino) 633 errx(EEXIT, "inoinfo: inumber %d out of range", inum); 634 ilp = &inostathead[inum / sblock->fs_ipg]; 635 iloff = inum % sblock->fs_ipg; 636 if (iloff >= ilp->il_numalloced) 637 return (&unallocated); 638 return (&ilp->il_stat[iloff]); 639 } 640 641 void 642 sb_oldfscompat_read(struct fs *fs, struct fs **fssave) 643 { 644 if ((fs->fs_magic != FS_UFS1_MAGIC) || 645 (fs->fs_old_flags & FS_FLAGS_UPDATED)) 646 return; 647 648 /* Save a copy of fields that may be modified for compatibility */ 649 if (fssave) { 650 if (!*fssave) 651 *fssave = malloc(sizeof(struct fs)); 652 if (!*fssave) 653 errx(EEXIT, "cannot allocate space for compat store"); 654 memmove(*fssave, fs, sizeof(struct fs)); 655 656 if (debug) 657 printf("detected ufs1 superblock not yet updated for ufs2 kernels\n"); 658 659 if (doswap) { 660 uint16_t postbl[256]; 661 int i, n; 662 663 if (fs->fs_old_postblformat == FS_42POSTBLFMT) 664 n = 256; 665 else 666 n = 128; 667 668 /* extract the postbl from the unswapped superblock */ 669 if (!needswap) 670 ffs_sb_swap(*fssave, *fssave); 671 memmove(postbl, (&(*fssave)->fs_old_postbl_start), 672 n * sizeof(postbl[0])); 673 if (!needswap) 674 ffs_sb_swap(*fssave, *fssave); 675 676 /* Now swap it */ 677 for (i=0; i < n; i++) 678 postbl[i] = bswap16(postbl[i]); 679 680 /* And put it back such that it will get correctly 681 * unscrambled if it is swapped again on the way out 682 */ 683 if (needswap) 684 ffs_sb_swap(*fssave, *fssave); 685 memmove((&(*fssave)->fs_old_postbl_start), postbl, 686 n * sizeof(postbl[0])); 687 if (needswap) 688 ffs_sb_swap(*fssave, *fssave); 689 } 690 691 } 692 693 /* These fields will be overwritten by their 694 * original values in fs_oldfscompat_write, so it is harmless 695 * to modify them here. 696 */ 697 fs->fs_cstotal.cs_ndir = 698 fs->fs_old_cstotal.cs_ndir; 699 fs->fs_cstotal.cs_nbfree = 700 fs->fs_old_cstotal.cs_nbfree; 701 fs->fs_cstotal.cs_nifree = 702 fs->fs_old_cstotal.cs_nifree; 703 fs->fs_cstotal.cs_nffree = 704 fs->fs_old_cstotal.cs_nffree; 705 706 fs->fs_maxbsize = fs->fs_bsize; 707 fs->fs_time = fs->fs_old_time; 708 fs->fs_size = fs->fs_old_size; 709 fs->fs_dsize = fs->fs_old_dsize; 710 fs->fs_csaddr = fs->fs_old_csaddr; 711 fs->fs_sblockloc = SBLOCK_UFS1; 712 713 fs->fs_flags = fs->fs_old_flags; 714 715 if (fs->fs_old_postblformat == FS_42POSTBLFMT) { 716 fs->fs_old_nrpos = 8; 717 fs->fs_old_npsect = fs->fs_old_nsect; 718 fs->fs_old_interleave = 1; 719 fs->fs_old_trackskew = 0; 720 } 721 } 722 723 void 724 sb_oldfscompat_write(struct fs *fs, struct fs *fssave) 725 { 726 if ((fs->fs_magic != FS_UFS1_MAGIC) || 727 (fs->fs_old_flags & FS_FLAGS_UPDATED)) 728 return; 729 730 fs->fs_old_flags = fs->fs_flags; 731 fs->fs_old_time = fs->fs_time; 732 fs->fs_old_cstotal.cs_ndir = fs->fs_cstotal.cs_ndir; 733 fs->fs_old_cstotal.cs_nbfree = fs->fs_cstotal.cs_nbfree; 734 fs->fs_old_cstotal.cs_nifree = fs->fs_cstotal.cs_nifree; 735 fs->fs_old_cstotal.cs_nffree = fs->fs_cstotal.cs_nffree; 736 737 fs->fs_flags = fssave->fs_flags; 738 739 if (fs->fs_old_postblformat == FS_42POSTBLFMT) { 740 fs->fs_old_nrpos = fssave->fs_old_nrpos; 741 fs->fs_old_npsect = fssave->fs_old_npsect; 742 fs->fs_old_interleave = fssave->fs_old_interleave; 743 fs->fs_old_trackskew = fssave->fs_old_trackskew; 744 } 745 746 memmove(&fs->fs_old_postbl_start, &fssave->fs_old_postbl_start, 747 ((fs->fs_old_postblformat == FS_42POSTBLFMT) ? 748 512 : 256)); 749 } 750
Indexes created Fri Sep 26 08:10:20 GMT 2025