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Commit | Line | Data |
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24b2c7a7 TT |
1 | /* |
2 | * main.c --- ext2 resizer main program | |
3 | * | |
0cee8a5c TT |
4 | * Copyright (C) 1997, 1998 by Theodore Ts'o and |
5 | * PowerQuest, Inc. | |
6 | * | |
55f4cbd9 | 7 | * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 by Theodore Ts'o |
efc6f628 | 8 | * |
24b2c7a7 | 9 | * %Begin-Header% |
0cee8a5c TT |
10 | * This file may be redistributed under the terms of the GNU Public |
11 | * License. | |
24b2c7a7 TT |
12 | * %End-Header% |
13 | */ | |
14 | ||
f1644c32 | 15 | #ifndef _LARGEFILE_SOURCE |
fe07357f | 16 | #define _LARGEFILE_SOURCE |
f1644c32 TT |
17 | #endif |
18 | #ifndef _LARGEFILE64_SOURCE | |
fe07357f | 19 | #define _LARGEFILE64_SOURCE |
f1644c32 | 20 | #endif |
fe07357f | 21 | |
d1154eb4 | 22 | #include "config.h" |
c762c8e6 TT |
23 | #ifdef HAVE_GETOPT_H |
24 | #include <getopt.h> | |
373b8337 TT |
25 | #else |
26 | extern char *optarg; | |
27 | extern int optind; | |
c762c8e6 | 28 | #endif |
fe07357f | 29 | #include <unistd.h> |
f38cf3cb TT |
30 | #ifdef HAVE_STDLIB_H |
31 | #include <stdlib.h> | |
32 | #endif | |
fe07357f | 33 | #include <sys/types.h> |
116db1b5 | 34 | #include <sys/stat.h> |
fe07357f | 35 | #include <fcntl.h> |
03f9fd2a | 36 | #include <libgen.h> |
c762c8e6 | 37 | |
55f4cbd9 TT |
38 | #include "e2p/e2p.h" |
39 | ||
24b2c7a7 TT |
40 | #include "resize2fs.h" |
41 | ||
0cee8a5c | 42 | #include "../version.h" |
2e561e02 | 43 | |
f404167d TT |
44 | char *program_name; |
45 | static char *device_name, *io_options; | |
24b2c7a7 | 46 | |
dfcdc32f | 47 | static void usage (char *prog) |
24b2c7a7 | 48 | { |
199ddaaa | 49 | fprintf (stderr, _("Usage: %s [-d debug_flags] [-f] [-F] [-M] [-P] " |
75dd3c47 TN |
50 | "[-p] device [-b|-s|new_size] [-S RAID-stride] " |
51 | "[-z undo_file]\n\n"), | |
03f9fd2a | 52 | prog); |
2e561e02 | 53 | |
24b2c7a7 TT |
54 | exit (1); |
55 | } | |
56 | ||
3b627e8d TT |
57 | static errcode_t resize_progress_func(ext2_resize_t rfs, int pass, |
58 | unsigned long cur, unsigned long max) | |
63b44fbe TT |
59 | { |
60 | ext2_sim_progmeter progress; | |
61 | const char *label; | |
62 | errcode_t retval; | |
63 | ||
64 | progress = (ext2_sim_progmeter) rfs->prog_data; | |
f4b2a6db | 65 | if (max == 0) |
3b627e8d | 66 | return 0; |
63b44fbe TT |
67 | if (cur == 0) { |
68 | if (progress) | |
69 | ext2fs_progress_close(progress); | |
70 | progress = 0; | |
71 | switch (pass) { | |
a8519a2d | 72 | case E2_RSZ_EXTEND_ITABLE_PASS: |
a13575f4 | 73 | label = _("Extending the inode table"); |
63b44fbe TT |
74 | break; |
75 | case E2_RSZ_BLOCK_RELOC_PASS: | |
a13575f4 | 76 | label = _("Relocating blocks"); |
63b44fbe | 77 | break; |
a8519a2d | 78 | case E2_RSZ_INODE_SCAN_PASS: |
a13575f4 | 79 | label = _("Scanning inode table"); |
63b44fbe TT |
80 | break; |
81 | case E2_RSZ_INODE_REF_UPD_PASS: | |
a13575f4 | 82 | label = _("Updating inode references"); |
63b44fbe TT |
83 | break; |
84 | case E2_RSZ_MOVE_ITABLE_PASS: | |
a13575f4 | 85 | label = _("Moving inode table"); |
63b44fbe | 86 | break; |
a8519a2d | 87 | default: |
a13575f4 | 88 | label = _("Unknown pass?!?"); |
a8519a2d | 89 | break; |
63b44fbe | 90 | } |
a13575f4 | 91 | printf(_("Begin pass %d (max = %lu)\n"), pass, max); |
63b44fbe TT |
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 | } | |
3b627e8d | 106 | return 0; |
63b44fbe TT |
107 | } |
108 | ||
46c5490d TT |
109 | static void determine_fs_stride(ext2_filsys fs) |
110 | { | |
111 | unsigned int group; | |
112 | unsigned long long sum; | |
5e27a274 | 113 | unsigned int has_sb, prev_has_sb = 0, num; |
46c5490d | 114 | int i_stride, b_stride; |
2273a17a | 115 | int flexbg_size = 1 << fs->super->s_log_groups_per_flex; |
46c5490d | 116 | |
96c6a3ac TT |
117 | if (fs->stride) |
118 | return; | |
46c5490d TT |
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; | |
d7cca6b0 VAH |
124 | b_stride = ext2fs_block_bitmap_loc(fs, group) - |
125 | ext2fs_block_bitmap_loc(fs, group - 1) - | |
46c5490d | 126 | fs->super->s_blocks_per_group; |
d7cca6b0 VAH |
127 | i_stride = ext2fs_inode_bitmap_loc(fs, group) - |
128 | ext2fs_inode_bitmap_loc(fs, group - 1) - | |
46c5490d TT |
129 | fs->super->s_blocks_per_group; |
130 | if (b_stride != i_stride || | |
2273a17a DW |
131 | b_stride < 0 || |
132 | (flexbg_size > 1 && (group % flexbg_size == 0))) | |
46c5490d TT |
133 | goto next; |
134 | ||
135 | /* printf("group %d has stride %d\n", group, b_stride); */ | |
136 | sum += b_stride; | |
137 | num++; | |
efc6f628 | 138 | |
46c5490d TT |
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 | ||
96c6a3ac TT |
151 | fs->super->s_raid_stride = fs->stride; |
152 | ext2fs_mark_super_dirty(fs); | |
153 | ||
46c5490d TT |
154 | #if 0 |
155 | if (fs->stride) | |
156 | printf("Using RAID stride of %d\n", fs->stride); | |
157 | #endif | |
158 | } | |
159 | ||
0d89e5ac | 160 | static void bigalloc_check(ext2_filsys fs, int force) |
a713a7fe | 161 | { |
21e37be6 | 162 | if (!force && ext2fs_has_feature_bigalloc(fs->super)) { |
45ff69ff AD |
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")); | |
a713a7fe TT |
167 | exit(1); |
168 | } | |
169 | } | |
170 | ||
62f9bd0e | 171 | static int resize2fs_setup_tdb(const char *device, char *undo_file, |
03f9fd2a DW |
172 | io_manager *io_ptr) |
173 | { | |
174 | errcode_t retval = ENOMEM; | |
62f9bd0e TT |
175 | const char *tdb_dir = NULL; |
176 | char *tdb_file = NULL; | |
03f9fd2a | 177 | char *dev_name, *tmp_name; |
03f9fd2a DW |
178 | |
179 | /* (re)open a specific undo file */ | |
180 | if (undo_file && undo_file[0] != 0) { | |
b0851392 DW |
181 | retval = set_undo_io_backing_manager(*io_ptr); |
182 | if (retval) | |
183 | goto err; | |
03f9fd2a DW |
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"), | |
62f9bd0e | 191 | undo_file, device); |
b0851392 | 192 | return retval; |
03f9fd2a DW |
193 | } |
194 | ||
195 | /* | |
196 | * Configuration via a conf file would be | |
197 | * nice | |
198 | */ | |
199 | tdb_dir = getenv("E2FSPROGS_UNDO_DIR"); | |
b0851392 DW |
200 | if (!tdb_dir) |
201 | tdb_dir = "/var/lib/e2fsprogs"; | |
03f9fd2a | 202 | |
b0851392 DW |
203 | if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) || |
204 | access(tdb_dir, W_OK)) | |
03f9fd2a | 205 | return 0; |
03f9fd2a | 206 | |
62f9bd0e | 207 | tmp_name = strdup(device); |
03f9fd2a DW |
208 | if (!tmp_name) |
209 | goto errout; | |
210 | dev_name = basename(tmp_name); | |
b0851392 | 211 | tdb_file = malloc(strlen(tdb_dir) + 11 + strlen(dev_name) + 7 + 1); |
03f9fd2a DW |
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; | |
b0851392 DW |
221 | com_err(program_name, retval, |
222 | _("while trying to delete %s"), tdb_file); | |
03f9fd2a DW |
223 | goto errout; |
224 | } | |
225 | ||
b0851392 DW |
226 | retval = set_undo_io_backing_manager(*io_ptr); |
227 | if (retval) | |
228 | goto errout; | |
03f9fd2a DW |
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" | |
62f9bd0e | 235 | " e2undo %s %s\n\n"), tdb_file, device); |
03f9fd2a | 236 | |
03f9fd2a DW |
237 | free(tdb_file); |
238 | return 0; | |
03f9fd2a | 239 | errout: |
03f9fd2a DW |
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 | ||
0a617317 | 247 | int main (int argc, char ** argv) |
24b2c7a7 TT |
248 | { |
249 | errcode_t retval; | |
250 | ext2_filsys fs; | |
251 | int c; | |
05e112a1 | 252 | int flags = 0; |
c762c8e6 | 253 | int flush = 0; |
f4b2a6db | 254 | int force = 0; |
5d2ef12f | 255 | int io_flags = 0; |
199ddaaa JB |
256 | int force_min_size = 0; |
257 | int print_min_size = 0; | |
fe07357f | 258 | int fd, ret; |
8728d506 VAH |
259 | blk64_t new_size = 0; |
260 | blk64_t max_size = 0; | |
261 | blk64_t min_size = 0; | |
24b2c7a7 | 262 | io_manager io_ptr; |
55f4cbd9 | 263 | char *new_size_str = 0; |
46c5490d | 264 | int use_stride = -1; |
7270fbe7 | 265 | ext2fs_struct_stat st_buf; |
fe07357f | 266 | __s64 new_file_size; |
54434927 | 267 | unsigned int sys_page_size = 4096; |
deae5e80 | 268 | unsigned int blocksize; |
a7ccdff8 | 269 | long sysval; |
bf69235a | 270 | int len, mount_flags; |
03f9fd2a | 271 | char *mtpt, *undo_file = NULL; |
ddc32a04 TT |
272 | |
273 | #ifdef ENABLE_NLS | |
274 | setlocale(LC_MESSAGES, ""); | |
275 | setlocale(LC_CTYPE, ""); | |
276 | bindtextdomain(NLS_CAT_NAME, LOCALEDIR); | |
277 | textdomain(NLS_CAT_NAME); | |
9d4507c5 | 278 | set_com_err_gettext(gettext); |
ddc32a04 TT |
279 | #endif |
280 | ||
a6d8302b | 281 | add_error_table(&et_ext2_error_table); |
24b2c7a7 | 282 | |
f35fd3d5 | 283 | fprintf (stderr, "resize2fs %s (%s)\n", |
ba0af756 | 284 | E2FSPROGS_VERSION, E2FSPROGS_DATE); |
24b2c7a7 TT |
285 | if (argc && *argv) |
286 | program_name = *argv; | |
2e561e02 | 287 | |
03f9fd2a | 288 | while ((c = getopt(argc, argv, "d:fFhMPpS:bsz:")) != EOF) { |
24b2c7a7 TT |
289 | switch (c) { |
290 | case 'h': | |
291 | usage(program_name); | |
292 | break; | |
f4b2a6db TT |
293 | case 'f': |
294 | force = 1; | |
295 | break; | |
c762c8e6 TT |
296 | case 'F': |
297 | flush = 1; | |
298 | break; | |
199ddaaa JB |
299 | case 'M': |
300 | force_min_size = 1; | |
301 | break; | |
302 | case 'P': | |
303 | print_min_size = 1; | |
304 | break; | |
05e112a1 TT |
305 | case 'd': |
306 | flags |= atoi(optarg); | |
307 | break; | |
308 | case 'p': | |
309 | flags |= RESIZE_PERCENT_COMPLETE; | |
310 | break; | |
46c5490d TT |
311 | case 'S': |
312 | use_stride = atoi(optarg); | |
313 | break; | |
fe12931f DW |
314 | case 'b': |
315 | flags |= RESIZE_ENABLE_64BIT; | |
316 | break; | |
317 | case 's': | |
318 | flags |= RESIZE_DISABLE_64BIT; | |
319 | break; | |
03f9fd2a DW |
320 | case 'z': |
321 | undo_file = optarg; | |
322 | break; | |
24b2c7a7 | 323 | default: |
f4b2a6db | 324 | usage(program_name); |
24b2c7a7 TT |
325 | } |
326 | } | |
f4b2a6db TT |
327 | if (optind == argc) |
328 | usage(program_name); | |
2e561e02 | 329 | |
24b2c7a7 | 330 | device_name = argv[optind++]; |
55f4cbd9 TT |
331 | if (optind < argc) |
332 | new_size_str = argv[optind++]; | |
f4b2a6db TT |
333 | if (optind < argc) |
334 | usage(program_name); | |
efc6f628 | 335 | |
2e8ca9a2 TT |
336 | io_options = strchr(device_name, '?'); |
337 | if (io_options) | |
338 | *io_options++ = 0; | |
339 | ||
bf69235a TT |
340 | /* |
341 | * Figure out whether or not the device is mounted, and if it is | |
342 | * where it is mounted. | |
343 | */ | |
344 | len=80; | |
345 | while (1) { | |
346 | mtpt = malloc(len); | |
347 | if (!mtpt) | |
348 | return ENOMEM; | |
349 | mtpt[len-1] = 0; | |
efc6f628 | 350 | retval = ext2fs_check_mount_point(device_name, &mount_flags, |
bf69235a TT |
351 | mtpt, len); |
352 | if (retval) { | |
353 | com_err("ext2fs_check_mount_point", retval, | |
354 | _("while determining whether %s is mounted."), | |
355 | device_name); | |
356 | exit(1); | |
357 | } | |
3a4d9869 | 358 | if (!(mount_flags & EXT2_MF_MOUNTED) || (mtpt[len-1] == 0)) |
bf69235a TT |
359 | break; |
360 | free(mtpt); | |
361 | len = 2 * len; | |
362 | } | |
fe07357f | 363 | |
c4012e5a | 364 | fd = ext2fs_open_file(device_name, O_RDWR, 0); |
fe07357f TT |
365 | if (fd < 0) { |
366 | com_err("open", errno, _("while opening %s"), | |
367 | device_name); | |
368 | exit(1); | |
369 | } | |
370 | ||
7270fbe7 | 371 | ret = ext2fs_fstat(fd, &st_buf); |
fe07357f | 372 | if (ret < 0) { |
efc6f628 | 373 | com_err("open", errno, |
fe07357f TT |
374 | _("while getting stat information for %s"), |
375 | device_name); | |
376 | exit(1); | |
377 | } | |
efc6f628 | 378 | |
c762c8e6 | 379 | if (flush) { |
48e08e03 TT |
380 | retval = ext2fs_sync_device(fd, 1); |
381 | if (retval) { | |
efc6f628 | 382 | com_err(argv[0], retval, |
a13575f4 | 383 | _("while trying to flush %s"), |
c762c8e6 TT |
384 | device_name); |
385 | exit(1); | |
386 | } | |
fe07357f TT |
387 | } |
388 | ||
389 | if (!S_ISREG(st_buf.st_mode )) { | |
c762c8e6 | 390 | close(fd); |
fe07357f | 391 | fd = -1; |
c762c8e6 TT |
392 | } |
393 | ||
f38cf3cb TT |
394 | #ifdef CONFIG_TESTIO_DEBUG |
395 | if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) { | |
05e112a1 TT |
396 | io_ptr = test_io_manager; |
397 | test_io_backing_manager = unix_io_manager; | |
efc6f628 | 398 | } else |
f38cf3cb | 399 | #endif |
05e112a1 TT |
400 | io_ptr = unix_io_manager; |
401 | ||
5d2ef12f TT |
402 | if (!(mount_flags & EXT2_MF_MOUNTED)) |
403 | io_flags = EXT2_FLAG_RW | EXT2_FLAG_EXCLUSIVE; | |
04cb6f58 SL |
404 | |
405 | io_flags |= EXT2_FLAG_64BITS; | |
03f9fd2a DW |
406 | if (undo_file) { |
407 | retval = resize2fs_setup_tdb(device_name, undo_file, &io_ptr); | |
408 | if (retval) | |
409 | exit(1); | |
410 | } | |
efc6f628 | 411 | retval = ext2fs_open2(device_name, io_options, io_flags, |
2e8ca9a2 | 412 | 0, 0, io_ptr, &fs); |
24b2c7a7 | 413 | if (retval) { |
45ff69ff AD |
414 | com_err(program_name, retval, _("while trying to open %s"), |
415 | device_name); | |
416 | printf("%s", _("Couldn't find valid filesystem superblock.\n")); | |
24b2c7a7 TT |
417 | exit (1); |
418 | } | |
baab9f43 | 419 | fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; |
236efede | 420 | |
0462fd6d ES |
421 | /* |
422 | * Before acting on an unmounted filesystem, make sure it's ok, | |
423 | * unless the user is forcing it. | |
424 | * | |
425 | * We do ERROR and VALID checks even if we're only printing the | |
055866d8 | 426 | * minimum size, because traversal of a badly damaged filesystem |
0462fd6d ES |
427 | * can cause issues as well. We don't require it to be fscked after |
428 | * the last mount time in this case, though, as this is a bit less | |
429 | * risky. | |
430 | */ | |
431 | if (!force && !(mount_flags & EXT2_MF_MOUNTED)) { | |
432 | int checkit = 0; | |
433 | ||
434 | if (fs->super->s_state & EXT2_ERROR_FS) | |
435 | checkit = 1; | |
436 | ||
437 | if ((fs->super->s_state & EXT2_VALID_FS) == 0) | |
438 | checkit = 1; | |
439 | ||
440 | if ((fs->super->s_lastcheck < fs->super->s_mtime) && | |
441 | !print_min_size) | |
442 | checkit = 1; | |
443 | ||
37e7426d TT |
444 | if ((ext2fs_free_blocks_count(fs->super) > |
445 | ext2fs_blocks_count(fs->super)) || | |
7f5ba7cc TT |
446 | (fs->super->s_free_inodes_count > fs->super->s_inodes_count)) |
447 | checkit = 1; | |
448 | ||
0462fd6d | 449 | if (checkit) { |
7d7a8fe4 ES |
450 | fprintf(stderr, |
451 | _("Please run 'e2fsck -f %s' first.\n\n"), | |
452 | device_name); | |
453 | exit(1); | |
454 | } | |
455 | } | |
456 | ||
101c84f2 TT |
457 | /* |
458 | * Check for compatibility with the feature sets. We need to | |
459 | * be more stringent than ext2fs_open(). | |
460 | */ | |
76dd5e5c | 461 | if (fs->super->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) { |
101c84f2 TT |
462 | com_err(program_name, EXT2_ET_UNSUPP_FEATURE, |
463 | "(%s)", device_name); | |
464 | exit(1); | |
465 | } | |
a8d632a4 | 466 | |
e231f175 | 467 | min_size = calculate_minimum_resize_size(fs, flags); |
0d04d88a | 468 | |
199ddaaa | 469 | if (print_min_size) { |
8728d506 | 470 | printf(_("Estimated minimum size of the filesystem: %llu\n"), |
0d04d88a | 471 | min_size); |
199ddaaa JB |
472 | exit(0); |
473 | } | |
474 | ||
a7ccdff8 TT |
475 | /* Determine the system page size if possible */ |
476 | #ifdef HAVE_SYSCONF | |
477 | #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE)) | |
478 | #define _SC_PAGESIZE _SC_PAGE_SIZE | |
479 | #endif | |
480 | #ifdef _SC_PAGESIZE | |
481 | sysval = sysconf(_SC_PAGESIZE); | |
482 | if (sysval > 0) | |
483 | sys_page_size = sysval; | |
484 | #endif /* _SC_PAGESIZE */ | |
485 | #endif /* HAVE_SYSCONF */ | |
486 | ||
f4b2a6db TT |
487 | /* |
488 | * Get the size of the containing partition, and use this for | |
fe07357f | 489 | * defaults and for making sure the new filesystem doesn't |
f4b2a6db TT |
490 | * exceed the partition size. |
491 | */ | |
deae5e80 TT |
492 | blocksize = fs->blocksize; |
493 | retval = ext2fs_get_device_size2(device_name, blocksize, | |
8728d506 | 494 | &max_size); |
f4b2a6db | 495 | if (retval) { |
45ff69ff | 496 | com_err(program_name, retval, "%s", |
a13575f4 | 497 | _("while trying to determine filesystem size")); |
f4b2a6db TT |
498 | exit(1); |
499 | } | |
199ddaaa | 500 | if (force_min_size) |
1d8af189 | 501 | new_size = min_size; |
199ddaaa | 502 | else if (new_size_str) { |
8728d506 VAH |
503 | new_size = parse_num_blocks2(new_size_str, |
504 | fs->super->s_log_block_size); | |
279a000f ES |
505 | if (new_size == 0) { |
506 | com_err(program_name, 0, | |
507 | _("Invalid new size: %s\n"), new_size_str); | |
508 | exit(1); | |
509 | } | |
55f4cbd9 | 510 | } else { |
f4b2a6db | 511 | new_size = max_size; |
a7ccdff8 | 512 | /* Round down to an even multiple of a pagesize */ |
deae5e80 | 513 | if (sys_page_size > blocksize) |
1e19b01b | 514 | new_size &= ~((blk64_t)((sys_page_size / blocksize)-1)); |
a7ccdff8 | 515 | } |
fe12931f DW |
516 | /* If changing 64bit, don't change the filesystem size. */ |
517 | if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) { | |
518 | new_size = ext2fs_blocks_count(fs->super); | |
519 | } | |
21e37be6 | 520 | if (!ext2fs_has_feature_64bit(fs->super)) { |
ea38e503 TT |
521 | /* Take 16T down to 2^32-1 blocks */ |
522 | if (new_size == (1ULL << 32)) | |
523 | new_size--; | |
524 | else if (new_size > (1ULL << 32)) { | |
45ff69ff | 525 | com_err(program_name, 0, "%s", |
ea38e503 TT |
526 | _("New size too large to be " |
527 | "expressed in 32 bits\n")); | |
528 | exit(1); | |
529 | } | |
530 | } | |
46c5490d | 531 | |
0d04d88a ES |
532 | if (!force && new_size < min_size) { |
533 | com_err(program_name, 0, | |
8728d506 | 534 | _("New size smaller than minimum (%llu)\n"), min_size); |
0d04d88a ES |
535 | exit(1); |
536 | } | |
46c5490d | 537 | if (use_stride >= 0) { |
de8f3a76 | 538 | if (use_stride >= (int) fs->super->s_blocks_per_group) { |
45ff69ff | 539 | com_err(program_name, 0, "%s", |
46c5490d TT |
540 | _("Invalid stride length")); |
541 | exit(1); | |
542 | } | |
96c6a3ac TT |
543 | fs->stride = fs->super->s_raid_stride = use_stride; |
544 | ext2fs_mark_super_dirty(fs); | |
46c5490d TT |
545 | } else |
546 | determine_fs_stride(fs); | |
efc6f628 | 547 | |
116db1b5 TT |
548 | /* |
549 | * If we are resizing a plain file, and it's not big enough, | |
550 | * automatically extend it in a sparse fashion by writing the | |
551 | * last requested block. | |
552 | */ | |
deae5e80 | 553 | new_file_size = ((__u64) new_size) * blocksize; |
efc6f628 | 554 | if ((__u64) new_file_size > |
fe07357f TT |
555 | (((__u64) 1) << (sizeof(st_buf.st_size)*8 - 1)) - 1) |
556 | fd = -1; | |
557 | if ((new_file_size > st_buf.st_size) && | |
558 | (fd > 0)) { | |
559 | if ((ext2fs_llseek(fd, new_file_size-1, SEEK_SET) >= 0) && | |
560 | (write(fd, "0", 1) == 1)) | |
116db1b5 | 561 | max_size = new_size; |
116db1b5 | 562 | } |
f4b2a6db | 563 | if (!force && (new_size > max_size)) { |
a13575f4 | 564 | fprintf(stderr, _("The containing partition (or device)" |
8728d506 VAH |
565 | " is only %llu (%dk) blocks.\nYou requested a new size" |
566 | " of %llu blocks.\n\n"), max_size, | |
deae5e80 | 567 | blocksize / 1024, new_size); |
f4b2a6db TT |
568 | exit(1); |
569 | } | |
fe12931f DW |
570 | if ((flags & RESIZE_DISABLE_64BIT) && (flags & RESIZE_ENABLE_64BIT)) { |
571 | fprintf(stderr, _("Cannot set and unset 64bit feature.\n")); | |
572 | exit(1); | |
573 | } else if (flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)) { | |
574 | if (new_size >= (1ULL << 32)) { | |
575 | fprintf(stderr, _("Cannot change the 64bit feature " | |
576 | "on a filesystem that is larger than " | |
577 | "2^32 blocks.\n")); | |
578 | exit(1); | |
579 | } | |
580 | if (mount_flags & EXT2_MF_MOUNTED) { | |
581 | fprintf(stderr, _("Cannot change the 64bit feature " | |
582 | "while the filesystem is mounted.\n")); | |
583 | exit(1); | |
584 | } | |
585 | if (flags & RESIZE_ENABLE_64BIT && | |
21e37be6 | 586 | !ext2fs_has_feature_extents(fs->super)) { |
fe12931f DW |
587 | fprintf(stderr, _("Please enable the extents feature " |
588 | "with tune2fs before enabling the 64bit " | |
589 | "feature.\n")); | |
590 | exit(1); | |
591 | } | |
592 | } else if (new_size == ext2fs_blocks_count(fs->super)) { | |
77255cf3 TT |
593 | fprintf(stderr, _("The filesystem is already %llu (%dk) " |
594 | "blocks long. Nothing to do!\n\n"), new_size, | |
deae5e80 | 595 | blocksize / 1024); |
f4b2a6db TT |
596 | exit(0); |
597 | } | |
fe12931f | 598 | if ((flags & RESIZE_ENABLE_64BIT) && |
21e37be6 | 599 | ext2fs_has_feature_64bit(fs->super)) { |
fe12931f DW |
600 | fprintf(stderr, _("The filesystem is already 64-bit.\n")); |
601 | exit(0); | |
602 | } | |
603 | if ((flags & RESIZE_DISABLE_64BIT) && | |
21e37be6 | 604 | !ext2fs_has_feature_64bit(fs->super)) { |
fe12931f DW |
605 | fprintf(stderr, _("The filesystem is already 32-bit.\n")); |
606 | exit(0); | |
607 | } | |
bf69235a TT |
608 | if (mount_flags & EXT2_MF_MOUNTED) { |
609 | retval = online_resize_fs(fs, mtpt, &new_size, flags); | |
610 | } else { | |
a713a7fe | 611 | bigalloc_check(fs, force); |
fe12931f DW |
612 | if (flags & RESIZE_ENABLE_64BIT) |
613 | printf(_("Converting the filesystem to 64-bit.\n")); | |
614 | else if (flags & RESIZE_DISABLE_64BIT) | |
615 | printf(_("Converting the filesystem to 32-bit.\n")); | |
616 | else | |
617 | printf(_("Resizing the filesystem on " | |
618 | "%s to %llu (%dk) blocks.\n"), | |
619 | device_name, new_size, blocksize / 1024); | |
bf69235a TT |
620 | retval = resize_fs(fs, &new_size, flags, |
621 | ((flags & RESIZE_PERCENT_COMPLETE) ? | |
622 | resize_progress_func : 0)); | |
f4b2a6db | 623 | } |
3a4d9869 | 624 | free(mtpt); |
1e1da29f | 625 | if (retval) { |
a13575f4 | 626 | com_err(program_name, retval, _("while trying to resize %s"), |
1e1da29f | 627 | device_name); |
96cdb37e TT |
628 | fprintf(stderr, |
629 | _("Please run 'e2fsck -fy %s' to fix the filesystem\n" | |
630 | "after the aborted resize operation.\n"), | |
631 | device_name); | |
47fee2ef | 632 | ext2fs_close_free(&fs); |
16082112 | 633 | exit(1); |
1e1da29f | 634 | } |
77255cf3 | 635 | printf(_("The filesystem on %s is now %llu (%dk) blocks long.\n\n"), |
deae5e80 | 636 | device_name, new_size, blocksize / 1024); |
fe07357f TT |
637 | |
638 | if ((st_buf.st_size > new_file_size) && | |
639 | (fd > 0)) { | |
261cd396 | 640 | #ifdef HAVE_FTRUNCATE64 |
fb72556a | 641 | retval = ftruncate64(fd, new_file_size); |
fe07357f | 642 | #else |
fb72556a | 643 | retval = 0; |
98dca6c5 TT |
644 | /* Only truncate if new_file_size doesn't overflow off_t */ |
645 | if (((off_t) new_file_size) == new_file_size) | |
fb72556a | 646 | retval = ftruncate(fd, (off_t) new_file_size); |
fe07357f | 647 | #endif |
fb72556a TT |
648 | if (retval) |
649 | com_err(program_name, retval, | |
650 | _("while trying to truncate %s"), | |
651 | device_name); | |
fe07357f TT |
652 | } |
653 | if (fd > 0) | |
654 | close(fd); | |
a6d8302b | 655 | remove_error_table(&et_ext2_error_table); |
0a617317 | 656 | return (0); |
24b2c7a7 | 657 | } |