resize/main.c

   1 /*
   2  * main.c --- ext2 resizer main program
   3  *
   4  * Copyright (C) 1997, 1998 by Theodore Ts'o and
   5  *      PowerQuest, Inc.
   6  *
   7  * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 by Theodore Ts'o
   8  *
   9  * %Begin-Header%
  10  * This file may be redistributed under the terms of the GNU Public
  11  * License.
  12  * %End-Header%
  13  */
  14
  15 #ifndef _LARGEFILE_SOURCE
  16 #define _LARGEFILE_SOURCE
  17 #endif
  18 #ifndef _LARGEFILE64_SOURCE
  19 #define _LARGEFILE64_SOURCE
  20 #endif
  21
  22 #include "config.h"
  23 #ifdef HAVE_GETOPT_H
  24 #include <getopt.h>
  25 #else
  26 extern char *optarg;
  27 extern int optind;
  28 #endif
  29 #include <unistd.h>
  30 #ifdef HAVE_STDLIB_H
  31 #include <stdlib.h>
  32 #endif
  33 #include <sys/types.h>
  34 #include <sys/stat.h>
  35 #include <fcntl.h>
  36 #include <libgen.h>
  37
  38 #include "e2p/e2p.h"
  39
  40 #include "resize2fs.h"
  41
  42 #include "../version.h"
  43
  44 char *program_name;
  45 static char *device_name, *io_options;
  46
  47 static void usage (char *prog)
  48 {
  49         fprintf (stderr, _("Usage: %s [-d debug_flags] [-f] [-F] [-M] [-P] "
  50                            "[-p] device [-b|-s|new_size] [-S RAID-stride] "
  51                            "[-z undo_file]\n\n"),
  52                  prog);
  53
  54         exit (1);
  55 }
  56
  57 static errcode_t resize_progress_func(ext2_resize_t rfs, int pass,
  58                                       unsigned long cur, unsigned long max)
  59 {
  60         ext2_sim_progmeter progress;
  61         const char      *label;
  62         errcode_t       retval;
  63
  64         progress = (ext2_sim_progmeter) rfs->prog_data;
  65         if (max == 0)
  66                 return 0;
  67         if (cur == 0) {
  68                 if (progress)
  69                         ext2fs_progress_close(progress);
  70                 progress = 0;
  71                 switch (pass) {
  72                 case E2_RSZ_EXTEND_ITABLE_PASS:
  73                         label = _("Extending the inode table");
  74                         break;
  75                 case E2_RSZ_BLOCK_RELOC_PASS:
  76                         label = _("Relocating blocks");
  77                         break;
  78                 case E2_RSZ_INODE_SCAN_PASS:
  79                         label = _("Scanning inode table");
  80                         break;
  81                 case E2_RSZ_INODE_REF_UPD_PASS:
  82                         label = _("Updating inode references");
  83                         break;
  84                 case E2_RSZ_MOVE_ITABLE_PASS:
  85                         label = _("Moving inode table");
  86                         break;
  87                 default:
  88                         label = _("Unknown pass?!?");
  89                         break;
  90                 }
  91                 printf(_("Begin pass %d (max = %lu)\n"), pass, max);
  92                 retval = ext2fs_progress_init(&progress, label, 30,
  93                                               40, max, 0);
  94                 if (retval)
  95                         progress = 0;
  96                 rfs->prog_data = (void *) progress;
  97         }
  98         if (progress)
  99                 ext2fs_progress_update(progress, cur);
 100         if (cur >= max) {
 101                 if (progress)
 102                         ext2fs_progress_close(progress);
 103                 progress = 0;
 104                 rfs->prog_data = 0;
 105         }
 106         return 0;
 107 }
 108
 109 static void determine_fs_stride(ext2_filsys fs)
 110 {
 111         unsigned int    group;
 112         unsigned long long sum;
 113         unsigned int    has_sb, prev_has_sb = 0, num;
 114         int             i_stride, b_stride;
 115         int             flexbg_size = 1 << fs->super->s_log_groups_per_flex;
 116
 117         if (fs->stride)
 118                 return;
 119         num = 0; sum = 0;
 120         for (group = 0; group < fs->group_desc_count; group++) {
 121                 has_sb = ext2fs_bg_has_super(fs, group);
 122                 if (group == 0 || has_sb != prev_has_sb)
 123                         goto next;
 124                 b_stride = ext2fs_block_bitmap_loc(fs, group) -
 125                         ext2fs_block_bitmap_loc(fs, group - 1) -
 126                         fs->super->s_blocks_per_group;
 127                 i_stride = ext2fs_inode_bitmap_loc(fs, group) -
 128                         ext2fs_inode_bitmap_loc(fs, group - 1) -
 129                         fs->super->s_blocks_per_group;
 130                 if (b_stride != i_stride ||
 131                     b_stride < 0 ||
 132                     (flexbg_size > 1 && (group % flexbg_size == 0)))
 133                         goto next;
 134
 135                 /* printf("group %d has stride %d\n", group, b_stride); */
 136                 sum += b_stride;
 137                 num++;
 138
 139         next:
 140                 prev_has_sb = has_sb;
 141         }
 142
 143         if (fs->group_desc_count > 12 && num < 3)
 144                 sum = 0;
 145
 146         if (num)
 147                 fs->stride = sum / num;
 148         else
 149                 fs->stride = 0;
 150
 151         fs->super->s_raid_stride = fs->stride;
 152         ext2fs_mark_super_dirty(fs);
 153
 154 #if 0
 155         if (fs->stride)
 156                 printf("Using RAID stride of %d\n", fs->stride);
 157 #endif
 158 }
 159
 160 static void bigalloc_check(ext2_filsys fs, int force)
 161 {
 162         if (!force && ext2fs_has_feature_bigalloc(fs->super)) {
 163                 fprintf(stderr, "%s", _("\nResizing bigalloc file systems has "
 164                                         "not been fully tested.  Proceed at\n"
 165                                         "your own risk!  Use the force option "
 166                                         "if you want to go ahead anyway.\n\n"));
 167                 exit(1);
 168         }
 169 }
 170
 171 static int resize2fs_setup_tdb(const char *device, char *undo_file,
 172                                io_manager *io_ptr)
 173 {
 174         errcode_t retval = ENOMEM;
 175         const char *tdb_dir = NULL;
 176         char *tdb_file = NULL;
 177         char *dev_name, *tmp_name;
 178
 179         /* (re)open a specific undo file */
 180         if (undo_file && undo_file[0] != 0) {
 181                 retval = set_undo_io_backing_manager(*io_ptr);
 182                 if (retval)
 183                         goto err;
 184                 *io_ptr = undo_io_manager;
 185                 retval = set_undo_io_backup_file(undo_file);
 186                 if (retval)
 187                         goto err;
 188                 printf(_("Overwriting existing filesystem; this can be undone "
 189                          "using the command:\n"
 190                          "    e2undo %s %s\n\n"),
 191                         undo_file, device);
 192                 return retval;
 193         }
 194
 195         /*
 196          * Configuration via a conf file would be
 197          * nice
 198          */
 199         tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
 200         if (!tdb_dir)
 201                 tdb_dir = "/var/lib/e2fsprogs";
 202
 203         if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
 204             access(tdb_dir, W_OK))
 205                 return 0;
 206
 207         tmp_name = strdup(device);
 208         if (!tmp_name)
 209                 goto errout;
 210         dev_name = basename(tmp_name);
 211         tdb_file = malloc(strlen(tdb_dir) + 11 + strlen(dev_name) + 7 + 1);
 212         if (!tdb_file) {
 213                 free(tmp_name);
 214                 goto errout;
 215         }
 216         sprintf(tdb_file, "%s/resize2fs-%s.e2undo", tdb_dir, dev_name);
 217         free(tmp_name);
 218
 219         if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
 220                 retval = errno;
 221                 com_err(program_name, retval,
 222                         _("while trying to delete %s"), tdb_file);
 223                 goto errout;
 224         }
 225
 226         retval = set_undo_io_backing_manager(*io_ptr);
 227         if (retval)
 228                 goto errout;
 229         *io_ptr = undo_io_manager;
 230         retval = set_undo_io_backup_file(tdb_file);
 231         if (retval)
 232                 goto errout;
 233         printf(_("Overwriting existing filesystem; this can be undone "
 234                  "using the command:\n"
 235                  "    e2undo %s %s\n\n"), tdb_file, device);
 236
 237         free(tdb_file);
 238         return 0;
 239 errout:
 240         free(tdb_file);
 241 err:
 242         com_err(program_name, retval, "%s",
 243                 _("while trying to setup undo file\n"));
 244         return retval;
 245 }
 246
 247 int main (int argc, char ** argv)
 248 {
 249         errcode_t       retval;
 250         ext2_filsys     fs;
 251         int             c;
 252         int             flags = 0;
 253         int             flush = 0;
 254         int             force = 0;
 255         int             io_flags = 0;
 256         int             force_min_size = 0;
 257         int             print_min_size = 0;
 258         int             fd, ret;
 259         blk64_t         new_size = 0;
 260         blk64_t         max_size = 0;
 261         blk64_t         min_size = 0;
 262         io_manager      io_ptr;
 263         char            *new_size_str = 0;
 264         int             use_stride = -1;
 265         ext2fs_struct_stat st_buf;
 266         __s64           new_file_size;
 267         unsigned int    sys_page_size = 4096;
 268         unsigned int    blocksize;
 269         long            sysval;
 270         int             len, mount_flags;
 271         char            *mtpt, *undo_file = NULL;
 272         dgrp_t          new_group_desc_count;
 273         unsigned long   new_desc_blocks;
 274
 275 #ifdef ENABLE_NLS
 276         setlocale(LC_MESSAGES, "");
 277         setlocale(LC_CTYPE, "");
 278         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
 279         textdomain(NLS_CAT_NAME);
 280         set_com_err_gettext(gettext);
 281 #endif
 282
 283         add_error_table(&et_ext2_error_table);
 284
 285         fprintf (stderr, "resize2fs %s (%s)\n",
 286                  E2FSPROGS_VERSION, E2FSPROGS_DATE);
 287         if (argc && *argv)
 288                 program_name = *argv;
 289
 290         while ((c = getopt(argc, argv, "d:fFhMPpS:bsz:")) != EOF) {
 291                 switch (c) {
 292                 case 'h':
 293                         usage(program_name);
 294                         break;
 295                 case 'f':
 296                         force = 1;
 297                         break;
 298                 case 'F':
 299                         flush = 1;
 300                         break;
 301                 case 'M':
 302                         force_min_size = 1;
 303                         break;
 304                 case 'P':
 305                         print_min_size = 1;
 306                         break;
 307                 case 'd':
 308                         flags |= atoi(optarg);
 309                         break;
 310                 case 'p':
 311                         flags |= RESIZE_PERCENT_COMPLETE;
 312                         break;
 313                 case 'S':
 314                         use_stride = atoi(optarg);
 315                         break;
 316                 case 'b':
 317                         flags |= RESIZE_ENABLE_64BIT;
 318                         break;
 319                 case 's':
 320                         flags |= RESIZE_DISABLE_64BIT;
 321                         break;
 322                 case 'z':
 323                         undo_file = optarg;
 324                         break;
 325                 default:
 326                         usage(program_name);
 327                 }
 328         }
 329         if (optind == argc)
 330                 usage(program_name);
 331
 332         device_name = argv[optind++];
 333         if (optind < argc)
 334                 new_size_str = argv[optind++];
 335         if (optind < argc)
 336                 usage(program_name);
 337
 338         io_options = strchr(device_name, '?');
 339         if (io_options)
 340                 *io_options++ = 0;
 341
 342         /*
 343          * Figure out whether or not the device is mounted, and if it is
 344          * where it is mounted.
 345          */
 346         len=80;
 347         while (1) {
 348                 mtpt = malloc(len);
 349                 if (!mtpt)
 350                         return ENOMEM;
 351                 mtpt[len-1] = 0;
 352                 retval = ext2fs_check_mount_point(device_name, &mount_flags,
 353                                                   mtpt, len);
 354                 if (retval) {
 355                         com_err("ext2fs_check_mount_point", retval,
 356                                 _("while determining whether %s is mounted."),
 357                                 device_name);
 358                         exit(1);
 359                 }
 360                 if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0))
 361                         break;
 362                 free(mtpt);
 363                 len = 2 * len;
 364         }
 365
 366         fd = ext2fs_open_file(device_name, O_RDWR, 0);
 367         if (fd < 0) {
 368                 com_err("open", errno, _("while opening %s"),
 369                         device_name);
 370                 exit(1);
 371         }
 372
 373         ret = ext2fs_fstat(fd, &st_buf);
 374         if (ret < 0) {
 375                 com_err("open", errno,
 376                         _("while getting stat information for %s"),
 377                         device_name);
 378                 exit(1);
 379         }
 380
 381         if (flush) {
 382                 retval = ext2fs_sync_device(fd, 1);
 383                 if (retval) {
 384                         com_err(argv[0], retval,
 385                                 _("while trying to flush %s"),
 386                                 device_name);
 387                         exit(1);
 388                 }
 389         }
 390
 391         if (!S_ISREG(st_buf.st_mode )) {
 392                 close(fd);
 393                 fd = -1;
 394         }
 395
 396 #ifdef CONFIG_TESTIO_DEBUG
 397         if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
 398                 io_ptr = test_io_manager;
 399                 test_io_backing_manager = unix_io_manager;
 400         } else
 401 #endif
 402                 io_ptr = unix_io_manager;
 403
 404         if (!(mount_flags & EXT2_MF_MOUNTED))
 405                 io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE;
 406
 407         io_flags |= EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
 408         if (undo_file) {
 409                 retval = resize2fs_setup_tdb(device_name, undo_file, &io_ptr);
 410                 if (retval)
 411                         exit(1);
 412         }
 413         retval = ext2fs_open2(device_name, io_options, io_flags,
 414                               0, 0, io_ptr, &fs);
 415         if (retval) {
 416                 com_err(program_name, retval, _("while trying to open %s"),
 417                         device_name);
 418                 printf("%s", _("Couldn't find valid filesystem superblock.\n"));
 419                 exit (1);
 420         }
 421         fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
 422
 423         /*
 424          * Before acting on an unmounted filesystem, make sure it's ok,
 425          * unless the user is forcing it.
 426          *
 427          * We do ERROR and VALID checks even if we're only printing the
 428          * minimum size, because traversal of a badly damaged filesystem
 429          * can cause issues as well.  We don't require it to be fscked after
 430          * the last mount time in this case, though, as this is a bit less
 431          * risky.
 432          */
 433         if (!force && !(mount_flags & EXT2_MF_MOUNTED)) {
 434                 int checkit = 0;
 435
 436                 if (fs->super->s_state & EXT2_ERROR_FS)
 437                         checkit = 1;
 438
 439                 if ((fs->super->s_state & EXT2_VALID_FS) == 0)
 440                         checkit = 1;
 441
 442                 if ((fs->super->s_lastcheck < fs->super->s_mtime) &&
 443                     !print_min_size)
 444                         checkit = 1;
 445
 446                 if ((ext2fs_free_blocks_count(fs->super) >
 447                      ext2fs_blocks_count(fs->super)) ||
 448                     (fs->super->s_free_inodes_count > fs->super->s_inodes_count))
 449                         checkit = 1;
 450
 451                 if (checkit) {
 452                         fprintf(stderr,
 453                                 _("Please run 'e2fsck -f %s' first.\n\n"),
 454                                 device_name);
 455                         exit(1);
 456                 }
 457         }
 458
 459         /*
 460          * Check for compatibility with the feature sets.  We need to
 461          * be more stringent than ext2fs_open().
 462          */
 463         if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) {
 464                 com_err(program_name, EXT2_ET_UNSUPP_FEATURE,
 465                         "(%s)", device_name);
 466                 exit(1);
 467         }
 468
 469         min_size = calculate_minimum_resize_size(fs, flags);
 470
 471         if (print_min_size) {
 472                 printf(_("Estimated minimum size of the filesystem: %llu\n"),
 473                        (unsigned long long) min_size);
 474                 exit(0);
 475         }
 476
 477         /* Determine the system page size if possible */
 478 #ifdef HAVE_SYSCONF
 479 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
 480 #define _SC_PAGESIZE _SC_PAGE_SIZE
 481 #endif
 482 #ifdef _SC_PAGESIZE
 483         sysval = sysconf(_SC_PAGESIZE);
 484         if (sysval > 0)
 485                 sys_page_size = sysval;
 486 #endif /* _SC_PAGESIZE */
 487 #endif /* HAVE_SYSCONF */
 488
 489         /*
 490          * Get the size of the containing partition, and use this for
 491          * defaults and for making sure the new filesystem doesn't
 492          * exceed the partition size.
 493          */
 494         blocksize = fs->blocksize;
 495         retval = ext2fs_get_device_size2(device_name, blocksize,
 496                                          &max_size);
 497         if (retval) {
 498                 com_err(program_name, retval, "%s",
 499                         _("while trying to determine filesystem size"));
 500                 exit(1);
 501         }
 502         if (force_min_size)
 503                 new_size = min_size;
 504         else if (new_size_str) {
 505                 new_size = parse_num_blocks2(new_size_str,
 506                                              fs->super->s_log_block_size);
 507                 if (new_size == 0) {
 508                         com_err(program_name, 0,
 509                                 _("Invalid new size: %s\n"), new_size_str);
 510                         exit(1);
 511                 }
 512         } else {
 513                 new_size = max_size;
 514                 /* Round down to an even multiple of a pagesize */
 515                 if (sys_page_size > blocksize)
 516                         new_size &= ~((blk64_t)((sys_page_size / blocksize)-1));
 517         }
 518         /* If changing 64bit, don't change the filesystem size. */
 519         if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) {
 520                 new_size = ext2fs_blocks_count(fs->super);
 521         }
 522         if (!ext2fs_has_feature_64bit(fs->super)) {
 523                 /* Take 16T down to 2^32-1 blocks */
 524                 if (new_size == (1ULL << 32))
 525                         new_size--;
 526                 else if (new_size > (1ULL << 32)) {
 527                         com_err(program_name, 0, "%s",
 528                                 _("New size too large to be "
 529                                   "expressed in 32 bits\n"));
 530                         exit(1);
 531                 }
 532         }
 533         new_group_desc_count = ext2fs_div64_ceil(new_size -
 534                                 fs->super->s_first_data_block,
 535                                                  EXT2_BLOCKS_PER_GROUP(fs->super));
 536         new_desc_blocks = ext2fs_div_ceil(new_group_desc_count,
 537                                           EXT2_DESC_PER_BLOCK(fs->super));
 538         if ((new_desc_blocks + fs->super->s_first_data_block) >
 539             EXT2_BLOCKS_PER_GROUP(fs->super)) {
 540                 com_err(program_name, 0,
 541                         _("New size results in too many block group "
 542                           "descriptors.\n"));
 543                 exit(1);
 544         }
 545
 546         if (!force && new_size < min_size) {
 547                 com_err(program_name, 0,
 548                         _("New size smaller than minimum (%llu)\n"),
 549                         (unsigned long long) min_size);
 550                 exit(1);
 551         }
 552         if (use_stride >= 0) {
 553                 if (use_stride >= (int) fs->super->s_blocks_per_group) {
 554                         com_err(program_name, 0, "%s",
 555                                 _("Invalid stride length"));
 556                         exit(1);
 557                 }
 558                 fs->stride = fs->super->s_raid_stride = use_stride;
 559                 ext2fs_mark_super_dirty(fs);
 560         } else
 561                   determine_fs_stride(fs);
 562
 563         /*
 564          * If we are resizing a plain file, and it's not big enough,
 565          * automatically extend it in a sparse fashion by writing the
 566          * last requested block.
 567          */
 568         new_file_size = ((__u64) new_size) * blocksize;
 569         if ((__u64) new_file_size >
 570             (((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1)
 571                 fd = -1;
 572         if ((new_file_size > st_buf.st_size) &&
 573             (fd > 0)) {
 574                 if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) &&
 575                     (write(fd, "0", 1) == 1))
 576                         max_size = new_size;
 577         }
 578         if (!force && (new_size > max_size)) {
 579                 fprintf(stderr, _("The containing partition (or device)"
 580                         " is only %llu (%dk) blocks.\nYou requested a new size"
 581                         " of %llu blocks.\n\n"), (unsigned long long) max_size,
 582                         blocksize / 1024, (unsigned long long) new_size);
 583                 exit(1);
 584         }
 585         if ((flags & RESIZE_DISABLE_64BIT) && (flags & RESIZE_ENABLE_64BIT)) {
 586                 fprintf(stderr, _("Cannot set and unset 64bit feature.\n"));
 587                 exit(1);
 588         } else if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) {
 589                 if (new_size >= (1ULL << 32)) {
 590                         fprintf(stderr, _("Cannot change the 64bit feature "
 591                                 "on a filesystem that is larger than "
 592                                 "2^32 blocks.\n"));
 593                         exit(1);
 594                 }
 595                 if (mount_flags & EXT2_MF_MOUNTED) {
 596                         fprintf(stderr, _("Cannot change the 64bit feature "
 597                                 "while the filesystem is mounted.\n"));
 598                         exit(1);
 599                 }
 600                 if (flags & RESIZE_ENABLE_64BIT &&
 601                     !ext2fs_has_feature_extents(fs->super)) {
 602                         fprintf(stderr, _("Please enable the extents feature "
 603                                 "with tune2fs before enabling the 64bit "
 604                                 "feature.\n"));
 605                         exit(1);
 606                 }
 607         } else if (new_size == ext2fs_blocks_count(fs->super)) {
 608                 fprintf(stderr, _("The filesystem is already %llu (%dk) "
 609                         "blocks long.  Nothing to do!\n\n"),
 610                         (unsigned long long) new_size,
 611                         blocksize / 1024);
 612                 exit(0);
 613         }
 614         if ((flags & RESIZE_ENABLE_64BIT) &&
 615             ext2fs_has_feature_64bit(fs->super)) {
 616                 fprintf(stderr, _("The filesystem is already 64-bit.\n"));
 617                 exit(0);
 618         }
 619         if ((flags & RESIZE_DISABLE_64BIT) &&
 620             !ext2fs_has_feature_64bit(fs->super)) {
 621                 fprintf(stderr, _("The filesystem is already 32-bit.\n"));
 622                 exit(0);
 623         }
 624         if (new_size < ext2fs_blocks_count(fs->super) &&
 625             ext2fs_has_feature_stable_inodes(fs->super)) {
 626                 fprintf(stderr, _("Cannot shrink this filesystem "
 627                         "because it has the stable_inodes feature flag.\n"));
 628                 exit(1);
 629         }
 630         if (mount_flags & EXT2_MF_MOUNTED) {
 631                 retval = online_resize_fs(fs, mtpt, &new_size, flags);
 632         } else {
 633                 bigalloc_check(fs, force);
 634                 if (flags & RESIZE_ENABLE_64BIT)
 635                         printf(_("Converting the filesystem to 64-bit.\n"));
 636                 else if (flags & RESIZE_DISABLE_64BIT)
 637                         printf(_("Converting the filesystem to 32-bit.\n"));
 638                 else
 639                         printf(_("Resizing the filesystem on "
 640                                  "%s to %llu (%dk) blocks.\n"),
 641                                device_name, (unsigned long long) new_size,
 642                                blocksize / 1024);
 643                 retval = resize_fs(fs, &new_size, flags,
 644                                    ((flags & RESIZE_PERCENT_COMPLETE) ?
 645                                     resize_progress_func : 0));
 646         }
 647         free(mtpt);
 648         if (retval) {
 649                 com_err(program_name, retval, _("while trying to resize %s"),
 650                         device_name);
 651                 fprintf(stderr,
 652                         _("Please run 'e2fsck -fy %s' to fix the filesystem\n"
 653                           "after the aborted resize operation.\n"),
 654                         device_name);
 655                 ext2fs_close_free(&fs);
 656                 exit(1);
 657         }
 658         printf(_("The filesystem on %s is now %llu (%dk) blocks long.\n\n"),
 659                device_name, (unsigned long long) new_size, blocksize / 1024);
 660
 661         if ((st_buf.st_size > new_file_size) &&
 662             (fd > 0)) {
 663 #ifdef HAVE_FTRUNCATE64
 664                 retval = ftruncate64(fd, new_file_size);
 665 #else
 666                 retval = 0;
 667                 /* Only truncate if new_file_size doesn't overflow off_t */
 668                 if (((off_t) new_file_size) == new_file_size)
 669                         retval = ftruncate(fd, (off_t) new_file_size);
 670 #endif
 671                 if (retval)
 672                         com_err(program_name, retval,
 673                                 _("while trying to truncate %s"),
 674                                 device_name);
 675         }
 676         if (fd > 0)
 677                 close(fd);
 678         remove_error_table(&et_ext2_error_table);
 679         return (0);
 680 }