e2fsck/unix.c

   1 /*
   2  * unix.c - The unix-specific code for e2fsck
   3  *
   4  * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * This file may be redistributed under the terms of the GNU Public
   8  * License.
   9  * %End-Header%
  10  */
  11
  12 #include <stdio.h>
  13 #ifdef HAVE_STDLIB_H
  14 #include <stdlib.h>
  15 #endif
  16 #include <string.h>
  17 #include <fcntl.h>
  18 #include <ctype.h>
  19 #include <termios.h>
  20 #include <time.h>
  21 #ifdef HAVE_GETOPT_H
  22 #include <getopt.h>
  23 #endif
  24 #include <unistd.h>
  25 #ifdef HAVE_ERRNO_H
  26 #include <errno.h>
  27 #endif
  28 #ifdef HAVE_MNTENT_H
  29 #include <mntent.h>
  30 #endif
  31 #include <sys/ioctl.h>
  32 #include <malloc.h>
  33
  34 #include "et/com_err.h"
  35 #include "e2fsck.h"
  36 #include "problem.h"
  37 #include "../version.h"
  38
  39 extern int isatty(int);
  40
  41 /* Command line options */
  42 static int blocksize = 0;
  43 static int swapfs = 0;
  44 static int normalize_swapfs = 0;
  45 static int cflag = 0;           /* check disk */
  46 static int show_version_only = 0;
  47 static int force = 0;
  48 static int verbose = 0;
  49
  50 static int replace_bad_blocks = 0;
  51 static char *bad_blocks_file = 0;
  52
  53 static int possible_block_sizes[] = { 1024, 2048, 4096, 8192, 0};
  54
  55 static int root_filesystem = 0;
  56 static int read_only_root = 0;
  57
  58 static void usage(e2fsck_t ctx)
  59 {
  60         fprintf(stderr,
  61                 "Usage: %s [-panyrcdfvstFSV] [-b superblock] [-B blocksize]\n"
  62                 "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
  63                 "\t\t[-l|-L bad_blocks_file] device\n", ctx->program_name);
  64         exit(FSCK_USAGE);
  65 }
  66
  67 static void show_stats(e2fsck_t ctx)
  68 {
  69         ext2_filsys fs = ctx->fs;
  70         int inodes, inodes_used, blocks, blocks_used;
  71         int dir_links;
  72         int num_files, num_links;
  73         int frag_percent;
  74
  75         dir_links = 2 * ctx->fs_directory_count - 1;
  76         num_files = ctx->fs_total_count - dir_links;
  77         num_links = ctx->fs_links_count - dir_links;
  78         inodes = fs->super->s_inodes_count;
  79         inodes_used = (fs->super->s_inodes_count -
  80                        fs->super->s_free_inodes_count);
  81         blocks = fs->super->s_blocks_count;
  82         blocks_used = (fs->super->s_blocks_count -
  83                        fs->super->s_free_blocks_count);
  84
  85         frag_percent = (10000 * ctx->fs_fragmented) / inodes_used;
  86         frag_percent = (frag_percent + 5) / 10;
  87
  88         if (!verbose) {
  89                 printf("%s: %d/%d files (%0d.%d%% non-contiguous), %d/%d blocks\n",
  90                        ctx->device_name, inodes_used, inodes,
  91                        frag_percent / 10, frag_percent % 10,
  92                        blocks_used, blocks);
  93                 return;
  94         }
  95         printf ("\n%8d inode%s used (%d%%)\n", inodes_used,
  96                 (inodes_used != 1) ? "s" : "",
  97                 100 * inodes_used / inodes);
  98         printf ("%8d non-contiguous inodes (%0d.%d%%)\n",
  99                 ctx->fs_fragmented, frag_percent / 10, frag_percent % 10);
 100         printf ("         # of inodes with ind/dind/tind blocks: %d/%d/%d\n",
 101                 ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
 102         printf ("%8d block%s used (%d%%)\n"
 103                 "%8d bad block%s\n", blocks_used,
 104                 (blocks_used != 1) ? "s" : "",
 105                 100 * blocks_used / blocks, ctx->fs_badblocks_count,
 106                 ctx->fs_badblocks_count != 1 ? "s" : "");
 107         printf ("\n%8d regular file%s\n"
 108                 "%8d director%s\n"
 109                 "%8d character device file%s\n"
 110                 "%8d block device file%s\n"
 111                 "%8d fifo%s\n"
 112                 "%8d link%s\n"
 113                 "%8d symbolic link%s (%d fast symbolic link%s)\n"
 114                 "%8d socket%s\n"
 115                 "--------\n"
 116                 "%8d file%s\n",
 117                 ctx->fs_regular_count,
 118                 (ctx->fs_regular_count != 1) ? "s" : "",
 119                 ctx->fs_directory_count,
 120                 (ctx->fs_directory_count != 1) ? "ies" : "y",
 121                 ctx->fs_chardev_count,
 122                 (ctx->fs_chardev_count != 1) ? "s" : "",
 123                 ctx->fs_blockdev_count,
 124                 (ctx->fs_blockdev_count != 1) ? "s" : "",
 125                 ctx->fs_fifo_count,
 126                 (ctx->fs_fifo_count != 1) ? "s" : "",
 127                 ctx->fs_links_count - dir_links,
 128                 ((ctx->fs_links_count - dir_links) != 1) ? "s" : "",
 129                 ctx->fs_symlinks_count,
 130                 (ctx->fs_symlinks_count != 1) ? "s" : "",
 131                 ctx->fs_fast_symlinks_count,
 132                 (ctx->fs_fast_symlinks_count != 1) ? "s" : "",
 133                 ctx->fs_sockets_count, (ctx->fs_sockets_count != 1) ? "s" : "",
 134                 ctx->fs_total_count - dir_links,
 135                 ((ctx->fs_total_count - dir_links) != 1) ? "s" : "");
 136 }
 137
 138 static void check_mount(e2fsck_t ctx)
 139 {
 140         errcode_t       retval;
 141         int             mount_flags, cont, fd;
 142
 143         retval = ext2fs_check_if_mounted(ctx->filesystem_name, &mount_flags);
 144         if (retval) {
 145                 com_err("ext2fs_check_if_mount", retval,
 146                         "while determining whether %s is mounted.",
 147                         ctx->filesystem_name);
 148                 return;
 149         }
 150         if (!(mount_flags & EXT2_MF_MOUNTED))
 151                 return;
 152
 153 #if (defined(__linux__) && defined(HAVE_MNTENT_H))
 154         /*
 155          * If the root is mounted read-only, then /etc/mtab is
 156          * probably not correct; so we won't issue a warning based on
 157          * it.
 158          */
 159         fd = open(MOUNTED, O_RDWR);
 160         if (fd < 0) {
 161                 if (errno == EROFS)
 162                         return;
 163         } else
 164                 close(fd);
 165 #endif
 166
 167         if (ctx->options & E2F_OPT_READONLY) {
 168                 printf("Warning!  %s is mounted.\n", ctx->device_name);
 169                 return;
 170         }
 171
 172         printf("%s is mounted.\n\n", ctx->device_name);
 173         printf("\007\007\007\007WARNING!!!  Running e2fsck on a mounted filesystem "
 174                "may cause\nSEVERE filesystem damage.\007\007\007\n\n");
 175         if (isatty (0) && isatty (1))
 176                 cont = ask_yn("Do you really want to continue", -1);
 177         else
 178                 cont = 0;
 179         if (!cont) {
 180                 printf ("check aborted.\n");
 181                 exit (0);
 182         }
 183         return;
 184 }
 185
 186 /*
 187  * This routine checks to see if a filesystem can be skipped; if so,
 188  * it will exit with E2FSCK_OK.  Under some conditions it will print a
 189  * message explaining why a check is being forced.
 190  */
 191 static void check_if_skip(e2fsck_t ctx)
 192 {
 193         ext2_filsys fs = ctx->fs;
 194         const char *reason = NULL;
 195
 196         if (force || bad_blocks_file || cflag || swapfs)
 197                 return;
 198
 199         if (fs->super->s_state & EXT2_ERROR_FS)
 200                 reason = "contains a file system with errors";
 201         else if (fs->super->s_mnt_count >=
 202                  (unsigned) fs->super->s_max_mnt_count)
 203                 reason = "has reached maximal mount count";
 204         else if (fs->super->s_checkinterval &&
 205                  time(0) >= (fs->super->s_lastcheck +
 206                              fs->super->s_checkinterval))
 207                 reason = "has gone too long without being checked";
 208         else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
 209                 reason = "was not cleanly unmounted";
 210         if (reason) {
 211                 printf("%s %s, check forced.\n", ctx->device_name, reason);
 212                 return;
 213         }
 214         printf("%s: clean, %d/%d files, %d/%d blocks\n", ctx->device_name,
 215                fs->super->s_inodes_count - fs->super->s_free_inodes_count,
 216                fs->super->s_inodes_count,
 217                fs->super->s_blocks_count - fs->super->s_free_blocks_count,
 218                fs->super->s_blocks_count);
 219         ext2fs_close(fs);
 220         exit(FSCK_OK);
 221 }
 222
 223
 224 #define PATH_SET "PATH=/sbin"
 225
 226 static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
 227 {
 228         int             flush = 0;
 229         int             c;
 230 #ifdef MTRACE
 231         extern void     *mallwatch;
 232 #endif
 233         char            *oldpath = getenv("PATH");
 234         e2fsck_t        ctx;
 235         errcode_t       retval;
 236
 237         retval = e2fsck_allocate_context(&ctx);
 238         if (retval)
 239                 return retval;
 240
 241         *ret_ctx = ctx;
 242
 243         /* Update our PATH to include /sbin  */
 244         if (oldpath) {
 245                 char *newpath;
 246
 247                 newpath = (char *) malloc(sizeof (PATH_SET) + 1 +
 248                                           strlen (oldpath));
 249                 if (!newpath)
 250                         fatal_error(ctx, "Couldn't malloc() newpath");
 251                 strcpy (newpath, PATH_SET);
 252                 strcat (newpath, ":");
 253                 strcat (newpath, oldpath);
 254                 putenv (newpath);
 255         } else
 256                 putenv (PATH_SET);
 257
 258         setbuf(stdout, NULL);
 259         setbuf(stderr, NULL);
 260         initialize_ext2_error_table();
 261
 262         if (argc && *argv)
 263                 ctx->program_name = *argv;
 264         else
 265                 ctx->program_name = "e2fsck";
 266         while ((c = getopt (argc, argv, "panyrcB:dfvtFVM:b:I:P:l:L:N:Ss")) != EOF)
 267                 switch (c) {
 268                 case 'p':
 269                 case 'a':
 270                         ctx->options |= E2F_OPT_PREEN;
 271                         ctx->options &= ~(E2F_OPT_YES|E2F_OPT_NO);
 272                         break;
 273                 case 'n':
 274                         ctx->options |= E2F_OPT_NO;
 275                         ctx->options &= ~(E2F_OPT_YES|E2F_OPT_PREEN);
 276                         break;
 277                 case 'y':
 278                         ctx->options |= E2F_OPT_YES;
 279                         ctx->options &= ~(E2F_OPT_PREEN|E2F_OPT_NO);
 280                         break;
 281                 case 't':
 282 #ifdef RESOURCE_TRACK
 283                         if (ctx->options & E2F_OPT_TIME)
 284                                 ctx->options |= E2F_OPT_TIME2;
 285                         else
 286                                 ctx->options |= E2F_OPT_TIME;
 287 #else
 288                         fprintf(stderr, "The -t option is not "
 289                                 "supported on this version of e2fsck.\n");
 290 #endif
 291                         break;
 292                 case 'c':
 293                         cflag++;
 294                         ctx->options |= E2F_OPT_CHECKBLOCKS;
 295                         break;
 296                 case 'r':
 297                         /* What we do by default, anyway! */
 298                         break;
 299                 case 'b':
 300                         ctx->use_superblock = atoi(optarg);
 301                         break;
 302                 case 'B':
 303                         blocksize = atoi(optarg);
 304                         break;
 305                 case 'I':
 306                         ctx->inode_buffer_blocks = atoi(optarg);
 307                         break;
 308                 case 'P':
 309                         ctx->process_inode_size = atoi(optarg);
 310                         break;
 311                 case 'L':
 312                         replace_bad_blocks++;
 313                 case 'l':
 314                         bad_blocks_file = (char *) malloc(strlen(optarg)+1);
 315                         if (!bad_blocks_file)
 316                                 fatal_error(ctx,
 317                                             "Couldn't malloc bad_blocks_file");
 318                         strcpy(bad_blocks_file, optarg);
 319                         break;
 320                 case 'd':
 321                         ctx->options |= E2F_OPT_DEBUG;
 322                         break;
 323                 case 'f':
 324                         force = 1;
 325                         break;
 326                 case 'F':
 327 #ifdef BLKFLSBUF
 328                         flush = 1;
 329 #else
 330                         fatal_error(ctx, "-F not supported");
 331 #endif
 332                         break;
 333                 case 'v':
 334                         verbose = 1;
 335                         break;
 336                 case 'V':
 337                         show_version_only = 1;
 338                         break;
 339 #ifdef MTRACE
 340                 case 'M':
 341                         mallwatch = (void *) strtol(optarg, NULL, 0);
 342                         break;
 343 #endif
 344                 case 'N':
 345                         ctx->device_name = optarg;
 346                         break;
 347                 case 's':
 348                         normalize_swapfs = 1;
 349                 case 'S':
 350                         swapfs = 1;
 351                         break;
 352                 default:
 353                         usage(ctx);
 354                 }
 355         if (show_version_only)
 356                 return 0;
 357         if (optind != argc - 1)
 358                 usage(ctx);
 359         if ((ctx->options & E2F_OPT_NO) && !bad_blocks_file &&
 360             !cflag && !swapfs)
 361                 ctx->options |= E2F_OPT_READONLY;
 362         ctx->filesystem_name = argv[optind];
 363         if (ctx->device_name == 0)
 364                 ctx->device_name = ctx->filesystem_name;
 365         if (flush) {
 366 #ifdef BLKFLSBUF
 367                 int     fd = open(ctx->filesystem_name, O_RDONLY, 0);
 368
 369                 if (fd < 0) {
 370                         com_err("open", errno, "while opening %s for flushing",
 371                                 ctx->filesystem_name);
 372                         exit(FSCK_ERROR);
 373                 }
 374                 if (ioctl(fd, BLKFLSBUF, 0) < 0) {
 375                         com_err("BLKFLSBUF", errno, "while trying to flush %s",
 376                                 ctx->filesystem_name);
 377                         exit(FSCK_ERROR);
 378                 }
 379                 close(fd);
 380 #else
 381                 fatal_error(ctx, "BLKFLSBUF not supported");
 382 #endif /* BLKFLSBUF */
 383         }
 384         if (swapfs) {
 385                 if (cflag || bad_blocks_file) {
 386                         fprintf(stderr, "Incompatible options not "
 387                                 "allowed when byte-swapping.\n");
 388                         exit(FSCK_ERROR);
 389                 }
 390         }
 391         return 0;
 392 }
 393
 394 static const char *my_ver_string = E2FSPROGS_VERSION;
 395 static const char *my_ver_date = E2FSPROGS_DATE;
 396
 397 int main (int argc, char *argv[])
 398 {
 399         errcode_t       retval = 0;
 400         int             exit_value = FSCK_OK;
 401         int             i;
 402         ext2_filsys     fs = 0;
 403         io_manager      io_ptr;
 404         struct ext2fs_sb *s;
 405         const char      *lib_ver_date;
 406         int             my_ver, lib_ver;
 407         e2fsck_t        ctx;
 408         struct problem_context pctx;
 409         int flags, run_result;
 410
 411         clear_problem_context(&pctx);
 412 #ifdef MTRACE
 413         mtrace();
 414 #endif
 415 #ifdef MCHECK
 416         mcheck(0);
 417 #endif
 418         my_ver = ext2fs_parse_version_string(my_ver_string);
 419         lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
 420         if (my_ver > lib_ver) {
 421                 fprintf( stderr, "Error: ext2fs library version "
 422                         "out of date!\n");
 423                 show_version_only++;
 424         }
 425
 426         retval = PRS(argc, argv, &ctx);
 427         if (retval) {
 428                 com_err("e2fsck", retval,
 429                         "while trying to initialize program");
 430                 exit(1);
 431         }
 432
 433 #ifdef RESOURCE_TRACK
 434         init_resource_track(&ctx->global_rtrack);
 435 #endif
 436
 437         if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
 438                 fprintf (stderr, "e2fsck %s, %s for EXT2 FS %s, %s\n",
 439                          my_ver_string, my_ver_date, EXT2FS_VERSION,
 440                          EXT2FS_DATE);
 441
 442         if (show_version_only) {
 443                 fprintf(stderr, "\tUsing %s, %s\n",
 444                         error_message(EXT2_ET_BASE), lib_ver_date);
 445                 exit(0);
 446         }
 447
 448         check_mount(ctx);
 449
 450         if (!(ctx->options & E2F_OPT_PREEN) &&
 451             !(ctx->options & E2F_OPT_NO) &&
 452             !(ctx->options & E2F_OPT_YES)) {
 453                 if (!isatty (0) || !isatty (1))
 454                         fatal_error(ctx,
 455                                     "need terminal for interactive repairs");
 456         }
 457         ctx->superblock = ctx->use_superblock;
 458 restart:
 459 #if 1
 460         io_ptr = unix_io_manager;
 461 #else
 462         io_ptr = test_io_manager;
 463         test_io_backing_manager = unix_io_manager;
 464 #endif
 465         flags = (ctx->options & E2F_OPT_READONLY) ? 0 : EXT2_FLAG_RW;
 466         if (ctx->superblock && blocksize) {
 467                 retval = ext2fs_open(ctx->filesystem_name, flags,
 468                                      ctx->superblock, blocksize, io_ptr, &fs);
 469         } else if (ctx->superblock) {
 470                 for (i=0; possible_block_sizes[i]; i++) {
 471                         retval = ext2fs_open(ctx->filesystem_name, flags,
 472                                              ctx->superblock,
 473                                              possible_block_sizes[i],
 474                                              io_ptr, &fs);
 475                         if (!retval)
 476                                 break;
 477                 }
 478         } else
 479                 retval = ext2fs_open(ctx->filesystem_name, flags,
 480                                      0, 0, io_ptr, &fs);
 481         if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
 482             ((retval == EXT2_ET_BAD_MAGIC) ||
 483              ((retval == 0) && ext2fs_check_desc(fs)))) {
 484                 if (!fs || (fs->group_desc_count > 1)) {
 485                         printf("%s trying backup blocks...\n",
 486                                retval ? "Couldn't find ext2 superblock," :
 487                                "Group descriptors look bad...");
 488                         ctx->superblock = get_backup_sb(fs);
 489                         if (fs)
 490                                 ext2fs_close(fs);
 491                         goto restart;
 492                 }
 493         }
 494         if (retval) {
 495                 com_err(ctx->program_name, retval, "while trying to open %s",
 496                         ctx->filesystem_name);
 497                 if (retval == EXT2_ET_REV_TOO_HIGH) {
 498                         printf("The filesystem revision is apparently "
 499                                "too high for this version of e2fsck.\n"
 500                                "(Or the filesystem superblock "
 501                                "is corrupt)\n\n");
 502                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
 503                 } else if (retval == EXT2_ET_SHORT_READ)
 504                         printf("Could this be a zero-length partition?\n");
 505                 else if ((retval == EPERM) || (retval == EACCES))
 506                         printf("You must have %s access to the "
 507                                "filesystem or be root\n",
 508                                (ctx->options & E2F_OPT_READONLY) ?
 509                                "r/o" : "r/w");
 510                 else if (retval == ENXIO)
 511                         printf("Possibly non-existent or swap device?\n");
 512 #ifdef EROFS
 513                 else if (retval == EROFS)
 514                         printf("Disk write-protected; use the -n option"
 515                                "to do a read-only\n"
 516                                "check of the device.\n");
 517 #endif
 518                 else
 519                         fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
 520                 exit(FSCK_ERROR);
 521         }
 522         ctx->fs = fs;
 523         fs->priv_data = ctx;
 524 #ifdef  EXT2_CURRENT_REV
 525         if (fs->super->s_rev_level > E2FSCK_CURRENT_REV) {
 526                 com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
 527                         "while trying to open %s",
 528                         ctx->filesystem_name);
 529         get_newer:
 530                 fatal_error(ctx, "Get a newer version of e2fsck!");
 531         }
 532 #endif
 533         /*
 534          * Check for compatibility with the feature sets.  We need to
 535          * be more stringent than ext2fs_open().
 536          */
 537         s = (struct ext2fs_sb *) fs->super;
 538         if ((s->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) ||
 539             (s->s_feature_incompat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP)) {
 540                 com_err(ctx->program_name, EXT2_ET_UNSUPP_FEATURE,
 541                         "(%s)", ctx->filesystem_name);
 542                 goto get_newer;
 543         }
 544         if (s->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) {
 545                 com_err(ctx->program_name, EXT2_ET_RO_UNSUPP_FEATURE,
 546                         "(%s)", ctx->filesystem_name);
 547                 goto get_newer;
 548         }
 549
 550         /*
 551          * If the user specified a specific superblock, presumably the
 552          * master superblock has been trashed.  So we mark the
 553          * superblock as dirty, so it can be written out.
 554          */
 555         if (ctx->superblock &&
 556             !(ctx->options & E2F_OPT_READONLY))
 557                 ext2fs_mark_super_dirty(fs);
 558
 559         /*
 560          * Don't overwrite the backup superblock and block
 561          * descriptors, until we're sure the filesystem is OK....
 562          */
 563         fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
 564
 565         ehandler_init(fs->io);
 566
 567         if (ctx->superblock)
 568                 set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
 569         check_super_block(ctx);
 570         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
 571                 exit(FSCK_ERROR);
 572         check_if_skip(ctx);
 573         if (bad_blocks_file)
 574                 read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
 575         else if (cflag)
 576                 test_disk(ctx);
 577         if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
 578                 exit(FSCK_ERROR);
 579
 580         if (normalize_swapfs) {
 581                 if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ==
 582                     ext2fs_native_flag()) {
 583                         fprintf(stderr, "%s: Filesystem byte order "
 584                                 "already normalized.\n", ctx->device_name);
 585                         exit(FSCK_ERROR);
 586                 }
 587         }
 588         if (swapfs) {
 589                 swap_filesys(ctx);
 590                 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
 591                         exit(FSCK_ERROR);
 592         }
 593
 594         /*
 595          * Mark the system as valid, 'til proven otherwise
 596          */
 597         ext2fs_mark_valid(fs);
 598
 599         retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
 600         if (retval) {
 601                 com_err(ctx->program_name, retval,
 602                         "while reading bad blocks inode");
 603                 preenhalt(ctx);
 604                 printf("This doesn't bode well, but we'll try to go on...\n");
 605         }
 606
 607         run_result = e2fsck_run(ctx);
 608         if (run_result == E2F_FLAG_RESTART) {
 609                 ext2fs_close(fs);
 610                 printf("Restarting e2fsck from the beginning...\n");
 611                 retval = e2fsck_reset_context(ctx);
 612                 if (retval) {
 613                         com_err(ctx->program_name, retval,
 614                                 "while resetting context");
 615                         exit(1);
 616                 }
 617                 goto restart;
 618         }
 619         if (run_result & E2F_FLAG_SIGNAL_MASK)
 620                 exit(FSCK_ERROR);
 621         if (run_result & E2F_FLAG_CANCEL)
 622                 ext2fs_unmark_valid(fs);
 623
 624 #ifdef MTRACE
 625         mtrace_print("Cleanup");
 626 #endif
 627         if (ext2fs_test_changed(fs)) {
 628                 exit_value = FSCK_NONDESTRUCT;
 629                 if (!(ctx->options & E2F_OPT_PREEN))
 630                         printf("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n",
 631                                ctx->device_name);
 632                 if (root_filesystem && !read_only_root) {
 633                         printf("%s: ***** REBOOT LINUX *****\n",
 634                                ctx->device_name);
 635                         exit_value = FSCK_REBOOT;
 636                 }
 637         }
 638         if (ext2fs_test_valid(fs))
 639                 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
 640         else
 641                 exit_value = FSCK_UNCORRECTED;
 642         if (!(ctx->options & E2F_OPT_READONLY)) {
 643                 if (ext2fs_test_valid(fs)) {
 644                         if (!(fs->super->s_state & EXT2_VALID_FS))
 645                                 exit_value = FSCK_NONDESTRUCT;
 646                         fs->super->s_state = EXT2_VALID_FS;
 647                 } else
 648                         fs->super->s_state &= ~EXT2_VALID_FS;
 649                 fs->super->s_mnt_count = 0;
 650                 fs->super->s_lastcheck = time(NULL);
 651                 ext2fs_mark_super_dirty(fs);
 652         }
 653         show_stats(ctx);
 654
 655         e2fsck_write_bitmaps(ctx);
 656         ext2fs_close(fs);
 657
 658 #ifdef RESOURCE_TRACK
 659         if (ctx->options & E2F_OPT_TIME)
 660                 print_resource_track(NULL, &ctx->global_rtrack);
 661 #endif
 662
 663         e2fsck_free_context(ctx);
 664
 665         return exit_value;
 666 }