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Commit | Line | Data |
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d9e2d0dd LC |
1 | /* |
2 | * fstrim.c -- discard the part (or whole) of mounted filesystem. | |
3 | * | |
fce05e96 | 4 | * Copyright (C) 2010 Red Hat, Inc. All rights reserved. |
d9e2d0dd LC |
5 | * Written by Lukas Czerner <lczerner@redhat.com> |
6 | * Karel Zak <kzak@redhat.com> | |
7 | * | |
8 | * This program is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | * | |
21 | * | |
22 | * This program uses FITRIM ioctl to discard parts or the whole filesystem | |
23 | * online (mounted). You can specify range (start and length) to be | |
e3d61a45 | 24 | * discarded, or simply discard whole filesystem. |
d9e2d0dd | 25 | */ |
fce05e96 | 26 | |
d9e2d0dd LC |
27 | #include <string.h> |
28 | #include <unistd.h> | |
29 | #include <stdlib.h> | |
30 | #include <stdio.h> | |
31 | #include <stdint.h> | |
32 | #include <fcntl.h> | |
33 | #include <limits.h> | |
34 | #include <getopt.h> | |
d9e2d0dd LC |
35 | |
36 | #include <sys/ioctl.h> | |
37 | #include <sys/stat.h> | |
061d1a51 | 38 | #include <linux/fs.h> |
a0357292 | 39 | |
d9e2d0dd LC |
40 | #include "nls.h" |
41 | #include "strutils.h" | |
eb76ca98 | 42 | #include "c.h" |
efb8854f | 43 | #include "closestream.h" |
36c370cb KZ |
44 | #include "pathnames.h" |
45 | #include "sysfs.h" | |
36c370cb KZ |
46 | |
47 | #include <libmount.h> | |
d9e2d0dd | 48 | |
43abda66 | 49 | |
d9e2d0dd LC |
50 | #ifndef FITRIM |
51 | struct fstrim_range { | |
52 | uint64_t start; | |
53 | uint64_t len; | |
54 | uint64_t minlen; | |
55 | }; | |
fce05e96 | 56 | #define FITRIM _IOWR('X', 121, struct fstrim_range) |
d9e2d0dd LC |
57 | #endif |
58 | ||
72213916 KZ |
59 | struct fstrim_control { |
60 | struct fstrim_range range; | |
61 | ||
62 | unsigned int verbose : 1, | |
374baa6f | 63 | quiet : 1, |
c5b8909f | 64 | fstab : 1, |
72213916 KZ |
65 | dryrun : 1; |
66 | }; | |
67 | ||
f227757c KZ |
68 | static int is_directory(const char *path, int silent) |
69 | { | |
70 | struct stat sb; | |
71 | ||
72 | if (stat(path, &sb) == -1) { | |
73 | if (!silent) | |
74 | warn(_("stat of %s failed"), path); | |
75 | return 0; | |
76 | } | |
77 | if (!S_ISDIR(sb.st_mode)) { | |
78 | if (!silent) | |
79 | warnx(_("%s: not a directory"), path); | |
80 | return 0; | |
81 | } | |
82 | return 1; | |
83 | } | |
84 | ||
36c370cb | 85 | /* returns: 0 = success, 1 = unsupported, < 0 = error */ |
c5b8909f | 86 | static int fstrim_filesystem(struct fstrim_control *ctl, const char *path, const char *devname) |
36c370cb | 87 | { |
8302b200 | 88 | int fd = -1, rc; |
36c370cb | 89 | struct fstrim_range range; |
8302b200 | 90 | char *rpath = realpath(path, NULL); |
36c370cb | 91 | |
8302b200 WS |
92 | if (!rpath) { |
93 | warn(_("cannot get realpath: %s"), path); | |
94 | rc = -errno; | |
95 | goto done; | |
96 | } | |
36c370cb | 97 | /* kernel modifies the range */ |
72213916 | 98 | memcpy(&range, &ctl->range, sizeof(range)); |
36c370cb | 99 | |
8302b200 | 100 | fd = open(rpath, O_RDONLY); |
e612ead9 SK |
101 | if (fd < 0) { |
102 | warn(_("cannot open %s"), path); | |
289b1533 KZ |
103 | rc = -errno; |
104 | goto done; | |
e612ead9 | 105 | } |
fda0e2cf | 106 | |
72213916 | 107 | if (ctl->dryrun) { |
c5b8909f KZ |
108 | if (devname) |
109 | printf(_("%s: 0 B (dry run) trimmed on %s\n"), path, devname); | |
110 | else | |
111 | printf(_("%s: 0 B (dry run) trimmed\n"), path); | |
fda0e2cf KZ |
112 | rc = 0; |
113 | goto done; | |
114 | } | |
115 | ||
36c370cb KZ |
116 | errno = 0; |
117 | if (ioctl(fd, FITRIM, &range)) { | |
374baa6f SK |
118 | switch (errno) { |
119 | case EBADF: | |
120 | case ENOTTY: | |
121 | case EOPNOTSUPP: | |
5fcdf204 KZ |
122 | rc = 1; |
123 | break; | |
374baa6f SK |
124 | default: |
125 | rc = -errno; | |
126 | } | |
127 | if (rc < 0) | |
36c370cb | 128 | warn(_("%s: FITRIM ioctl failed"), path); |
289b1533 | 129 | goto done; |
36c370cb KZ |
130 | } |
131 | ||
72213916 | 132 | if (ctl->verbose) { |
36c370cb KZ |
133 | char *str = size_to_human_string( |
134 | SIZE_SUFFIX_3LETTER | SIZE_SUFFIX_SPACE, | |
135 | (uint64_t) range.len); | |
c5b8909f KZ |
136 | if (devname) |
137 | /* TRANSLATORS: The standard value here is a very large number. */ | |
138 | printf(_("%s: %s (%" PRIu64 " bytes) trimmed on %s\n"), | |
139 | path, str, (uint64_t) range.len, devname); | |
140 | else | |
141 | /* TRANSLATORS: The standard value here is a very large number. */ | |
142 | printf(_("%s: %s (%" PRIu64 " bytes) trimmed\n"), | |
36c370cb | 143 | path, str, (uint64_t) range.len); |
c5b8909f | 144 | |
36c370cb KZ |
145 | free(str); |
146 | } | |
289b1533 KZ |
147 | |
148 | rc = 0; | |
149 | done: | |
150 | if (fd >= 0) | |
151 | close(fd); | |
8302b200 | 152 | free(rpath); |
289b1533 | 153 | return rc; |
36c370cb KZ |
154 | } |
155 | ||
c69bd2cb | 156 | static int has_discard(const char *devname, struct path_cxt **wholedisk) |
36c370cb | 157 | { |
c69bd2cb | 158 | struct path_cxt *pc = NULL; |
36c370cb KZ |
159 | uint64_t dg = 0; |
160 | dev_t disk = 0, dev; | |
fe7d6310 | 161 | int rc = -1, rdonly = 0; |
36c370cb | 162 | |
c69bd2cb | 163 | dev = sysfs_devname_to_devno(devname); |
36c370cb | 164 | if (!dev) |
c69bd2cb KZ |
165 | goto fail; |
166 | ||
167 | pc = ul_new_sysfs_path(dev, NULL, NULL); | |
168 | if (!pc) | |
169 | goto fail; | |
170 | ||
36c370cb KZ |
171 | /* |
172 | * This is tricky to read the info from sys/, because the queue | |
9e930041 | 173 | * attributes are provided for whole devices (disk) only. We're trying |
36c370cb | 174 | * to reuse the whole-disk sysfs context to optimize this stuff (as |
0e65dcde | 175 | * system usually have just one disk only). |
36c370cb | 176 | */ |
c69bd2cb KZ |
177 | rc = sysfs_blkdev_get_wholedisk(pc, NULL, 0, &disk); |
178 | if (rc != 0 || !disk) | |
179 | goto fail; | |
180 | ||
36c370cb | 181 | if (dev != disk) { |
c69bd2cb KZ |
182 | /* Partition, try reuse whole-disk context if valid for the |
183 | * current device, otherwise create new context for the | |
184 | * whole-disk. | |
185 | */ | |
186 | if (*wholedisk && sysfs_blkdev_get_devno(*wholedisk) != disk) { | |
187 | ul_unref_path(*wholedisk); | |
188 | *wholedisk = NULL; | |
189 | } | |
190 | if (!*wholedisk) { | |
191 | *wholedisk = ul_new_sysfs_path(disk, NULL, NULL); | |
192 | if (!*wholedisk) | |
193 | goto fail; | |
36c370cb | 194 | } |
c69bd2cb | 195 | sysfs_blkdev_set_parent(pc, *wholedisk); |
36c370cb KZ |
196 | } |
197 | ||
c69bd2cb | 198 | rc = ul_path_read_u64(pc, &dg, "queue/discard_granularity"); |
fe7d6310 KZ |
199 | if (!rc) |
200 | ul_path_scanf(pc, "ro", "%d", &rdonly); | |
36c370cb | 201 | |
c69bd2cb | 202 | ul_unref_path(pc); |
fe7d6310 | 203 | return rc == 0 && dg > 0 && rdonly == 0; |
c69bd2cb KZ |
204 | fail: |
205 | ul_unref_path(pc); | |
206 | return 1; | |
36c370cb KZ |
207 | } |
208 | ||
e05a3400 KZ |
209 | |
210 | static int uniq_fs_target_cmp( | |
211 | struct libmnt_table *tb __attribute__((__unused__)), | |
212 | struct libmnt_fs *a, | |
213 | struct libmnt_fs *b) | |
214 | { | |
215 | return !mnt_fs_streq_target(a, mnt_fs_get_target(b)); | |
216 | } | |
217 | ||
8dd51c18 KZ |
218 | static int uniq_fs_source_cmp( |
219 | struct libmnt_table *tb __attribute__((__unused__)), | |
220 | struct libmnt_fs *a, | |
221 | struct libmnt_fs *b) | |
222 | { | |
8dd51c18 KZ |
223 | if (mnt_fs_is_pseudofs(a) || mnt_fs_is_netfs(a) || |
224 | mnt_fs_is_pseudofs(b) || mnt_fs_is_netfs(b)) | |
225 | return 1; | |
226 | ||
afa382f2 | 227 | return !mnt_fs_streq_srcpath(a, mnt_fs_get_srcpath(b)); |
8dd51c18 KZ |
228 | } |
229 | ||
36c370cb KZ |
230 | /* |
231 | * fstrim --all follows "mount -a" return codes: | |
232 | * | |
233 | * 0 = all success | |
234 | * 32 = all failed | |
235 | * 64 = some failed, some success | |
236 | */ | |
72213916 | 237 | static int fstrim_all(struct fstrim_control *ctl) |
36c370cb KZ |
238 | { |
239 | struct libmnt_fs *fs; | |
240 | struct libmnt_iter *itr; | |
241 | struct libmnt_table *tab; | |
c5b8909f | 242 | struct libmnt_cache *cache = NULL; |
c69bd2cb | 243 | struct path_cxt *wholedisk = NULL; |
36c370cb | 244 | int cnt = 0, cnt_err = 0; |
c5b8909f | 245 | const char *filename = _PATH_PROC_MOUNTINFO; |
36c370cb | 246 | |
e05a3400 | 247 | mnt_init_debug(0); |
fda0e2cf | 248 | ul_path_init_debug(); |
e05a3400 | 249 | |
c5b8909f KZ |
250 | if (ctl->fstab) |
251 | filename = mnt_get_fstab_path(); | |
252 | ||
253 | tab = mnt_new_table_from_file(filename); | |
36c370cb | 254 | if (!tab) |
c5b8909f | 255 | err(MNT_EX_FAIL, _("failed to parse %s"), filename); |
36c370cb | 256 | |
8dd51c18 | 257 | /* de-duplicate by mountpoints */ |
e05a3400 KZ |
258 | mnt_table_uniq_fs(tab, 0, uniq_fs_target_cmp); |
259 | ||
c5b8909f | 260 | if (ctl->fstab) { |
410d12e5 KZ |
261 | char *rootdev = NULL; |
262 | ||
c5b8909f KZ |
263 | cache = mnt_new_cache(); |
264 | if (!cache) | |
265 | err(MNT_EX_FAIL, _("failed to initialize libmount cache")); | |
410d12e5 KZ |
266 | |
267 | /* Make sure we trim also root FS on --fstab */ | |
268 | if (mnt_table_find_target(tab, "/", MNT_ITER_FORWARD) == NULL && | |
269 | mnt_guess_system_root(0, cache, &rootdev) == 0) { | |
270 | ||
271 | fs = mnt_new_fs(); | |
272 | if (!fs) | |
273 | err(MNT_EX_FAIL, _("failed to allocate FS handler")); | |
274 | mnt_fs_set_target(fs, "/"); | |
275 | mnt_fs_set_source(fs, rootdev); | |
276 | mnt_fs_set_fstype(fs, "auto"); | |
277 | mnt_table_add_fs(tab, fs); | |
278 | mnt_unref_fs(fs); | |
279 | fs = NULL; | |
280 | } | |
c5b8909f KZ |
281 | } |
282 | ||
402006fa SB |
283 | itr = mnt_new_iter(MNT_ITER_BACKWARD); |
284 | if (!itr) | |
285 | err(MNT_EX_FAIL, _("failed to initialize libmount iterator")); | |
286 | ||
6466959d | 287 | /* Remove useless entries and canonicalize the table */ |
36c370cb KZ |
288 | while (mnt_table_next_fs(tab, itr, &fs) == 0) { |
289 | const char *src = mnt_fs_get_srcpath(fs), | |
290 | *tgt = mnt_fs_get_target(fs); | |
36c370cb | 291 | |
402006fa SB |
292 | if (!tgt || mnt_fs_is_pseudofs(fs) || mnt_fs_is_netfs(fs)) { |
293 | mnt_table_remove_fs(tab, fs); | |
c5b8909f | 294 | continue; |
402006fa | 295 | } |
c5b8909f | 296 | |
4080be3d | 297 | /* convert LABEL= (etc.) from fstab to paths */ |
c5b8909f | 298 | if (!src && cache) { |
c5b8909f KZ |
299 | const char *spec = mnt_fs_get_source(fs); |
300 | ||
402006fa SB |
301 | if (!spec) { |
302 | mnt_table_remove_fs(tab, fs); | |
c5b8909f | 303 | continue; |
402006fa | 304 | } |
c5b8909f | 305 | src = mnt_resolve_spec(spec, cache); |
402006fa | 306 | mnt_fs_set_source(fs, src); |
c5b8909f KZ |
307 | } |
308 | ||
402006fa SB |
309 | if (!src || *src != '/') { |
310 | mnt_table_remove_fs(tab, fs); | |
36c370cb | 311 | continue; |
402006fa SB |
312 | } |
313 | } | |
402006fa SB |
314 | |
315 | /* de-duplicate by source */ | |
316 | mnt_table_uniq_fs(tab, MNT_UNIQ_FORWARD, uniq_fs_source_cmp); | |
317 | ||
6466959d | 318 | mnt_reset_iter(itr, MNT_ITER_BACKWARD); |
402006fa | 319 | |
6466959d | 320 | /* Do FITRIM */ |
402006fa SB |
321 | while (mnt_table_next_fs(tab, itr, &fs) == 0) { |
322 | const char *src = mnt_fs_get_srcpath(fs), | |
323 | *tgt = mnt_fs_get_target(fs); | |
324 | char *path; | |
325 | int rc = 1; | |
36c370cb KZ |
326 | |
327 | /* Is it really accessible mountpoint? Not all mountpoints are | |
9e930041 | 328 | * accessible (maybe over mounted by another filesystem) */ |
36c370cb KZ |
329 | path = mnt_get_mountpoint(tgt); |
330 | if (path && strcmp(path, tgt) == 0) | |
331 | rc = 0; | |
332 | free(path); | |
333 | if (rc) | |
334 | continue; /* overlaying mount */ | |
335 | ||
6466959d | 336 | /* FITRIM on read-only filesystem can fail, and it can fail */ |
f227757c | 337 | if (access(tgt, W_OK) != 0) { |
2d22ac64 SB |
338 | if (errno == EROFS) |
339 | continue; | |
340 | if (errno == EACCES) | |
341 | continue; | |
342 | } | |
343 | ||
f227757c KZ |
344 | if (!is_directory(tgt, 1) || |
345 | !has_discard(src, &wholedisk)) | |
36c370cb KZ |
346 | continue; |
347 | cnt++; | |
348 | ||
349 | /* | |
350 | * We're able to detect that the device supports discard, but | |
351 | * things also depend on filesystem or device mapping, for | |
e1086439 | 352 | * example LUKS (by default) does not support FSTRIM. |
36c370cb KZ |
353 | * |
354 | * This is reason why we ignore EOPNOTSUPP and ENOTTY errors | |
355 | * from discard ioctl. | |
356 | */ | |
5fcdf204 KZ |
357 | rc = fstrim_filesystem(ctl, tgt, src); |
358 | if (rc < 0) | |
36c370cb | 359 | cnt_err++; |
5fcdf204 KZ |
360 | else if (rc == 1 && !ctl->quiet) |
361 | warnx(_("%s: the discard operation is not supported"), tgt); | |
36c370cb | 362 | } |
402006fa | 363 | mnt_free_iter(itr); |
36c370cb | 364 | |
c69bd2cb | 365 | ul_unref_path(wholedisk); |
e05a3400 | 366 | mnt_unref_table(tab); |
c5b8909f | 367 | mnt_unref_cache(cache); |
36c370cb KZ |
368 | |
369 | if (cnt && cnt == cnt_err) | |
8e9039af | 370 | return MNT_EX_FAIL; /* all failed */ |
36c370cb | 371 | if (cnt && cnt_err) |
8e9039af | 372 | return MNT_EX_SOMEOK; /* some ok */ |
36c370cb | 373 | |
7afdbb6f | 374 | return MNT_EX_SUCCESS; |
36c370cb KZ |
375 | } |
376 | ||
6e1eda6f | 377 | static void __attribute__((__noreturn__)) usage(void) |
d9e2d0dd | 378 | { |
6e1eda6f | 379 | FILE *out = stdout; |
47a9edbd | 380 | fputs(USAGE_HEADER, out); |
fce05e96 KZ |
381 | fprintf(out, |
382 | _(" %s [options] <mount point>\n"), program_invocation_short_name); | |
451dbcfa BS |
383 | |
384 | fputs(USAGE_SEPARATOR, out); | |
385 | fputs(_("Discard unused blocks on a mounted filesystem.\n"), out); | |
386 | ||
fce05e96 | 387 | fputs(USAGE_OPTIONS, out); |
c5b8909f KZ |
388 | fputs(_(" -a, --all trim all supported mounted filesystems\n"), out); |
389 | fputs(_(" -A, --fstab trim all supported mounted filesystems from /etc/fstab\n"), out); | |
d6bbe804 BS |
390 | fputs(_(" -o, --offset <num> the offset in bytes to start discarding from\n"), out); |
391 | fputs(_(" -l, --length <num> the number of bytes to discard\n"), out); | |
392 | fputs(_(" -m, --minimum <num> the minimum extent length to discard\n"), out); | |
a60fa93c | 393 | fputs(_(" -v, --verbose print number of discarded bytes\n"), out); |
f227757c | 394 | fputs(_(" --quiet suppress trim error messages\n"), out); |
f78f2983 | 395 | fputs(_(" -n, --dry-run does everything, but trim\n"), out); |
a60fa93c | 396 | |
47a9edbd | 397 | fputs(USAGE_SEPARATOR, out); |
f45f3ec3 | 398 | printf(USAGE_HELP_OPTIONS(21)); |
f1970cc5 KZ |
399 | |
400 | fputs(USAGE_ARGUMENTS, out); | |
401 | printf(USAGE_ARG_SIZE(_("<num>"))); | |
402 | ||
f45f3ec3 | 403 | printf(USAGE_MAN_TAIL("fstrim(8)")); |
6e1eda6f | 404 | exit(EXIT_SUCCESS); |
d9e2d0dd LC |
405 | } |
406 | ||
c84ed54c KZ |
407 | int main(int argc, char **argv) |
408 | { | |
b35c3727 | 409 | char *path = NULL; |
72213916 KZ |
410 | int c, rc, all = 0; |
411 | struct fstrim_control ctl = { | |
412 | .range = { .len = ULLONG_MAX } | |
413 | }; | |
374baa6f SK |
414 | enum { |
415 | OPT_QUIET = CHAR_MAX + 1 | |
416 | }; | |
c84ed54c | 417 | |
fce05e96 | 418 | static const struct option longopts[] = { |
87918040 | 419 | { "all", no_argument, NULL, 'a' }, |
c5b8909f | 420 | { "fstab", no_argument, NULL, 'A' }, |
87918040 SK |
421 | { "help", no_argument, NULL, 'h' }, |
422 | { "version", no_argument, NULL, 'V' }, | |
423 | { "offset", required_argument, NULL, 'o' }, | |
424 | { "length", required_argument, NULL, 'l' }, | |
425 | { "minimum", required_argument, NULL, 'm' }, | |
426 | { "verbose", no_argument, NULL, 'v' }, | |
374baa6f | 427 | { "quiet", no_argument, NULL, OPT_QUIET }, |
26b6525a | 428 | { "dry-run", no_argument, NULL, 'n' }, |
87918040 | 429 | { NULL, 0, NULL, 0 } |
d9e2d0dd LC |
430 | }; |
431 | ||
432 | setlocale(LC_ALL, ""); | |
433 | bindtextdomain(PACKAGE, LOCALEDIR); | |
434 | textdomain(PACKAGE); | |
2c308875 | 435 | close_stdout_atexit(); |
d9e2d0dd | 436 | |
26b6525a | 437 | while ((c = getopt_long(argc, argv, "Aahl:m:no:Vv", longopts, NULL)) != -1) { |
d9e2d0dd | 438 | switch(c) { |
c5b8909f KZ |
439 | case 'A': |
440 | ctl.fstab = 1; | |
441 | /* fallthrough */ | |
36c370cb KZ |
442 | case 'a': |
443 | all = 1; | |
444 | break; | |
26b6525a | 445 | case 'n': |
72213916 | 446 | ctl.dryrun = 1; |
fda0e2cf | 447 | break; |
d9e2d0dd | 448 | case 'l': |
72213916 | 449 | ctl.range.len = strtosize_or_err(optarg, |
28c71021 | 450 | _("failed to parse length")); |
d9e2d0dd LC |
451 | break; |
452 | case 'o': | |
72213916 | 453 | ctl.range.start = strtosize_or_err(optarg, |
28c71021 | 454 | _("failed to parse offset")); |
d9e2d0dd LC |
455 | break; |
456 | case 'm': | |
72213916 | 457 | ctl.range.minlen = strtosize_or_err(optarg, |
28c71021 | 458 | _("failed to parse minimum extent length")); |
d9e2d0dd LC |
459 | break; |
460 | case 'v': | |
72213916 | 461 | ctl.verbose = 1; |
d9e2d0dd | 462 | break; |
374baa6f SK |
463 | case OPT_QUIET: |
464 | ctl.quiet = 1; | |
465 | break; | |
2c308875 KZ |
466 | case 'h': |
467 | usage(); | |
468 | case 'V': | |
469 | print_version(EXIT_SUCCESS); | |
d9e2d0dd | 470 | default: |
677ec86c | 471 | errtryhelp(EXIT_FAILURE); |
d9e2d0dd | 472 | } |
fce05e96 | 473 | } |
d9e2d0dd | 474 | |
36c370cb KZ |
475 | if (!all) { |
476 | if (optind == argc) | |
477 | errx(EXIT_FAILURE, _("no mountpoint specified")); | |
478 | path = argv[optind++]; | |
479 | } | |
d9e2d0dd LC |
480 | |
481 | if (optind != argc) { | |
482 | warnx(_("unexpected number of arguments")); | |
6e1eda6f | 483 | errtryhelp(EXIT_FAILURE); |
d9e2d0dd LC |
484 | } |
485 | ||
36c370cb | 486 | if (all) |
72213916 | 487 | return fstrim_all(&ctl); /* MNT_EX_* codes */ |
36c370cb | 488 | |
f227757c KZ |
489 | if (!is_directory(path, 0)) |
490 | return EXIT_FAILURE; | |
491 | ||
c5b8909f | 492 | rc = fstrim_filesystem(&ctl, path, NULL); |
5fcdf204 | 493 | if (rc == 1 && !ctl.quiet) |
7afdbb6f KZ |
494 | warnx(_("%s: the discard operation is not supported"), path); |
495 | ||
496 | return rc == 0 ? EXIT_SUCCESS : EXIT_FAILURE; | |
d9e2d0dd | 497 | } |