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03a8a07d | 1 | /* |
1832f310 | 2 | * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
be684599 | 3 | * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. |
03a8a07d | 4 | * |
6606c3ae | 5 | * This file is part of LVM2. |
03a8a07d | 6 | * |
6606c3ae AK |
7 | * This copyrighted material is made available to anyone wishing to use, |
8 | * modify, copy, or redistribute it subject to the terms and conditions | |
be684599 | 9 | * of the GNU Lesser General Public License v.2.1. |
03a8a07d | 10 | * |
be684599 | 11 | * You should have received a copy of the GNU Lesser General Public License |
6606c3ae AK |
12 | * along with this program; if not, write to the Free Software Foundation, |
13 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
03a8a07d AK |
14 | */ |
15 | ||
16 | #include "tools.h" | |
17 | ||
1a9ea74d AK |
18 | #define SIZE_BUF 128 |
19 | ||
241913fe | 20 | struct lvresize_params { |
8ef2b021 | 21 | const char *vg_name; |
241913fe AK |
22 | const char *lv_name; |
23 | ||
24 | uint32_t stripes; | |
25 | uint32_t stripe_size; | |
ffb0e538 | 26 | uint32_t mirrors; |
241913fe | 27 | |
72b2cb61 | 28 | const struct segment_type *segtype; |
241913fe | 29 | |
241913fe AK |
30 | /* size */ |
31 | uint32_t extents; | |
32 | uint64_t size; | |
33 | sign_t sign; | |
34fadac4 | 34 | percent_t percent; |
03a8a07d AK |
35 | |
36 | enum { | |
37 | LV_ANY = 0, | |
38 | LV_REDUCE = 1, | |
39 | LV_EXTEND = 2 | |
241913fe AK |
40 | } resize; |
41 | ||
1a9ea74d AK |
42 | int resizefs; |
43 | int nofsck; | |
44 | ||
241913fe AK |
45 | int argc; |
46 | char **argv; | |
47 | }; | |
48 | ||
8a2fc586 AK |
49 | static int _lvresize_params(struct cmd_context *cmd, int argc, char **argv, |
50 | struct lvresize_params *lp) | |
241913fe AK |
51 | { |
52 | const char *cmd_name; | |
53 | char *st; | |
54 | ||
55 | lp->sign = SIGN_NONE; | |
56 | lp->resize = LV_ANY; | |
03a8a07d | 57 | |
60274aba | 58 | cmd_name = command_name(cmd); |
03a8a07d | 59 | if (!strcmp(cmd_name, "lvreduce")) |
241913fe | 60 | lp->resize = LV_REDUCE; |
03a8a07d | 61 | if (!strcmp(cmd_name, "lvextend")) |
241913fe | 62 | lp->resize = LV_EXTEND; |
03a8a07d | 63 | |
6fda126d | 64 | if (arg_count(cmd, extents_ARG) + arg_count(cmd, size_ARG) != 1) { |
03a8a07d | 65 | log_error("Please specify either size or extents (not both)"); |
241913fe | 66 | return 0; |
03a8a07d AK |
67 | } |
68 | ||
6fda126d | 69 | if (arg_count(cmd, extents_ARG)) { |
241913fe AK |
70 | lp->extents = arg_uint_value(cmd, extents_ARG, 0); |
71 | lp->sign = arg_sign_value(cmd, extents_ARG, SIGN_NONE); | |
34fadac4 | 72 | lp->percent = arg_percent_value(cmd, extents_ARG, PERCENT_NONE); |
03a8a07d AK |
73 | } |
74 | ||
1832f310 | 75 | /* Size returned in kilobyte units; held in sectors */ |
6fda126d | 76 | if (arg_count(cmd, size_ARG)) { |
241913fe AK |
77 | lp->size = arg_uint64_value(cmd, size_ARG, UINT64_C(0)) * 2; |
78 | lp->sign = arg_sign_value(cmd, size_ARG, SIGN_NONE); | |
34fadac4 | 79 | lp->percent = PERCENT_NONE; |
03a8a07d AK |
80 | } |
81 | ||
241913fe | 82 | if (lp->resize == LV_EXTEND && lp->sign == SIGN_MINUS) { |
03a8a07d | 83 | log_error("Negative argument not permitted - use lvreduce"); |
241913fe | 84 | return 0; |
03a8a07d AK |
85 | } |
86 | ||
241913fe | 87 | if (lp->resize == LV_REDUCE && lp->sign == SIGN_PLUS) { |
03a8a07d | 88 | log_error("Positive sign not permitted - use lvextend"); |
241913fe | 89 | return 0; |
03a8a07d AK |
90 | } |
91 | ||
1a9ea74d AK |
92 | lp->resizefs = arg_count(cmd, resizefs_ARG) ? 1 : 0; |
93 | lp->nofsck = arg_count(cmd, nofsck_ARG) ? 1 : 0; | |
94 | ||
03a8a07d AK |
95 | if (!argc) { |
96 | log_error("Please provide the logical volume name"); | |
241913fe | 97 | return 0; |
03a8a07d AK |
98 | } |
99 | ||
241913fe | 100 | lp->lv_name = argv[0]; |
03a8a07d AK |
101 | argv++; |
102 | argc--; | |
103 | ||
241913fe | 104 | if (!(lp->vg_name = extract_vgname(cmd, lp->lv_name))) { |
03a8a07d | 105 | log_error("Please provide a volume group name"); |
241913fe | 106 | return 0; |
03a8a07d AK |
107 | } |
108 | ||
241913fe AK |
109 | if ((st = strrchr(lp->lv_name, '/'))) |
110 | lp->lv_name = st + 1; | |
03a8a07d | 111 | |
241913fe AK |
112 | lp->argc = argc; |
113 | lp->argv = argv; | |
114 | ||
115 | return 1; | |
116 | } | |
7d0e6e80 | 117 | |
241913fe AK |
118 | static int _lvresize(struct cmd_context *cmd, struct lvresize_params *lp) |
119 | { | |
120 | struct volume_group *vg; | |
121 | struct logical_volume *lv; | |
241913fe AK |
122 | struct lvinfo info; |
123 | uint32_t stripesize_extents = 0; | |
124 | uint32_t seg_stripes = 0, seg_stripesize = 0, seg_size = 0; | |
ffb0e538 | 125 | uint32_t seg_mirrors = 0; |
241913fe AK |
126 | uint32_t extents_used = 0; |
127 | uint32_t size_rest; | |
a0a23eff | 128 | alloc_policy_t alloc; |
0fb173aa | 129 | struct logical_volume *lock_lv; |
241913fe AK |
130 | struct lv_list *lvl; |
131 | int consistent = 1; | |
132 | struct lv_segment *seg; | |
133 | uint32_t seg_extents; | |
134 | uint32_t sz, str; | |
7f0dc9c4 | 135 | struct list *pvh = NULL; |
1a9ea74d AK |
136 | char size_buf[SIZE_BUF]; |
137 | char lv_path[PATH_MAX]; | |
241913fe | 138 | |
a5fe5a7c | 139 | if (!(vg = vg_read(cmd, lp->vg_name, NULL, &consistent))) { |
241913fe | 140 | log_error("Volume group %s doesn't exist", lp->vg_name); |
7f0dc9c4 | 141 | return ECMD_FAILED; |
03a8a07d AK |
142 | } |
143 | ||
c221b0bc | 144 | if (!vg_check_status(vg, CLUSTERED | EXPORTED_VG | LVM_WRITE)) |
dc4d7417 | 145 | return ECMD_FAILED; |
f53c6aa6 | 146 | |
03a8a07d | 147 | /* does LV exist? */ |
241913fe | 148 | if (!(lvl = find_lv_in_vg(vg, lp->lv_name))) { |
03a8a07d | 149 | log_error("Logical volume %s not found in volume group %s", |
241913fe | 150 | lp->lv_name, lp->vg_name); |
7f0dc9c4 | 151 | return ECMD_FAILED; |
03a8a07d AK |
152 | } |
153 | ||
25b73380 AK |
154 | if (arg_count(cmd, stripes_ARG)) { |
155 | if (vg->fid->fmt->features & FMT_SEGMENTS) | |
241913fe | 156 | lp->stripes = arg_uint_value(cmd, stripes_ARG, 1); |
25b73380 | 157 | else |
e7ddf416 | 158 | log_warn("Varied striping not supported. Ignoring."); |
25b73380 AK |
159 | } |
160 | ||
ffb0e538 AK |
161 | if (arg_count(cmd, mirrors_ARG)) { |
162 | if (vg->fid->fmt->features & FMT_SEGMENTS) | |
163 | lp->mirrors = arg_uint_value(cmd, mirrors_ARG, 1) + 1; | |
164 | else | |
e7ddf416 | 165 | log_warn("Mirrors not supported. Ignoring."); |
7424de5b AK |
166 | if (arg_sign_value(cmd, mirrors_ARG, 0) == SIGN_MINUS) { |
167 | log_error("Mirrors argument may not be negative"); | |
168 | return 0; | |
169 | } | |
ffb0e538 AK |
170 | } |
171 | ||
25b73380 | 172 | if (arg_count(cmd, stripesize_ARG)) { |
fdd4f3c0 AK |
173 | if (arg_sign_value(cmd, stripesize_ARG, 0) == SIGN_MINUS) { |
174 | log_error("Stripesize may not be negative."); | |
7f0dc9c4 | 175 | return ECMD_FAILED; |
fdd4f3c0 | 176 | } |
12de747d AK |
177 | |
178 | if (arg_uint_value(cmd, stripesize_ARG, 0) > STRIPE_SIZE_LIMIT) { | |
179 | log_error("Stripe size cannot be larger than %s", | |
72b2cb61 | 180 | display_size(cmd, (uint64_t) STRIPE_SIZE_LIMIT)); |
12de747d AK |
181 | return 0; |
182 | } | |
183 | ||
184 | if (!(vg->fid->fmt->features & FMT_SEGMENTS)) | |
e7ddf416 | 185 | log_warn("Varied stripesize not supported. Ignoring."); |
12de747d AK |
186 | else if (arg_uint_value(cmd, stripesize_ARG, 0) > vg->extent_size) { |
187 | log_error("Reducing stripe size %s to maximum, " | |
188 | "physical extent size %s", | |
189 | display_size(cmd, | |
72b2cb61 AK |
190 | (uint64_t) arg_uint_value(cmd, stripesize_ARG, 0) * 2), |
191 | display_size(cmd, (uint64_t) vg->extent_size)); | |
12de747d AK |
192 | lp->stripe_size = vg->extent_size; |
193 | } else | |
241913fe AK |
194 | lp->stripe_size = 2 * arg_uint_value(cmd, |
195 | stripesize_ARG, 0); | |
12de747d | 196 | |
ffb0e538 AK |
197 | if (lp->mirrors) { |
198 | log_error("Mirrors and striping cannot be combined yet."); | |
199 | return ECMD_FAILED; | |
200 | } | |
12de747d AK |
201 | if (lp->stripe_size & (lp->stripe_size - 1)) { |
202 | log_error("Stripe size must be power of 2"); | |
203 | return 0; | |
204 | } | |
25b73380 AK |
205 | } |
206 | ||
f868d635 | 207 | lv = lvl->lv; |
03a8a07d | 208 | |
6e03b44c AK |
209 | if (lv->status & LOCKED) { |
210 | log_error("Can't resize locked LV %s", lv->name); | |
7f0dc9c4 | 211 | return ECMD_FAILED; |
6e03b44c AK |
212 | } |
213 | ||
72b2cb61 | 214 | alloc = arg_uint_value(cmd, alloc_ARG, lv->alloc); |
7f0dc9c4 | 215 | |
241913fe AK |
216 | if (lp->size) { |
217 | if (lp->size % vg->extent_size) { | |
218 | if (lp->sign == SIGN_MINUS) | |
219 | lp->size -= lp->size % vg->extent_size; | |
03a8a07d | 220 | else |
241913fe AK |
221 | lp->size += vg->extent_size - |
222 | (lp->size % vg->extent_size); | |
03a8a07d AK |
223 | |
224 | log_print("Rounding up size to full physical extent %s", | |
72b2cb61 | 225 | display_size(cmd, (uint64_t) lp->size)); |
03a8a07d AK |
226 | } |
227 | ||
241913fe | 228 | lp->extents = lp->size / vg->extent_size; |
03a8a07d AK |
229 | } |
230 | ||
34fadac4 AK |
231 | switch(lp->percent) { |
232 | case PERCENT_VG: | |
233 | lp->extents = lp->extents * vg->extent_count / 100; | |
234 | break; | |
235 | case PERCENT_FREE: | |
236 | lp->extents = lp->extents * vg->free_count / 100; | |
237 | break; | |
238 | case PERCENT_LV: | |
239 | lp->extents = lp->extents * lv->le_count / 100; | |
240 | break; | |
241 | case PERCENT_NONE: | |
242 | break; | |
243 | } | |
244 | ||
241913fe AK |
245 | if (lp->sign == SIGN_PLUS) |
246 | lp->extents += lv->le_count; | |
03a8a07d | 247 | |
241913fe AK |
248 | if (lp->sign == SIGN_MINUS) { |
249 | if (lp->extents >= lv->le_count) { | |
03a8a07d | 250 | log_error("Unable to reduce %s below 1 extent", |
241913fe | 251 | lp->lv_name); |
7f0dc9c4 | 252 | return EINVALID_CMD_LINE; |
03a8a07d AK |
253 | } |
254 | ||
241913fe | 255 | lp->extents = lv->le_count - lp->extents; |
03a8a07d AK |
256 | } |
257 | ||
241913fe | 258 | if (!lp->extents) { |
03a8a07d | 259 | log_error("New size of 0 not permitted"); |
7f0dc9c4 | 260 | return EINVALID_CMD_LINE; |
03a8a07d AK |
261 | } |
262 | ||
241913fe | 263 | if (lp->extents == lv->le_count) { |
03a8a07d | 264 | log_error("New size (%d extents) matches existing size " |
241913fe | 265 | "(%d extents)", lp->extents, lv->le_count); |
7f0dc9c4 | 266 | return EINVALID_CMD_LINE; |
03a8a07d AK |
267 | } |
268 | ||
241913fe | 269 | seg_size = lp->extents - lv->le_count; |
25b73380 | 270 | |
1832f310 AK |
271 | /* Use segment type of last segment */ |
272 | list_iterate_items(seg, &lv->segments) { | |
241913fe | 273 | lp->segtype = seg->segtype; |
1832f310 AK |
274 | } |
275 | ||
276 | /* FIXME Support LVs with mixed segment types */ | |
72b2cb61 | 277 | if (lp->segtype != arg_ptr_value(cmd, type_ARG, lp->segtype)) { |
241913fe | 278 | log_error("VolumeType does not match (%s)", lp->segtype->name); |
7f0dc9c4 | 279 | return EINVALID_CMD_LINE; |
1832f310 AK |
280 | } |
281 | ||
52dc2139 | 282 | /* If extending, find stripes, stripesize & size of last segment */ |
241913fe AK |
283 | if ((lp->extents > lv->le_count) && |
284 | !(lp->stripes == 1 || (lp->stripes > 1 && lp->stripe_size))) { | |
f2b7349e | 285 | list_iterate_items(seg, &lv->segments) { |
32469fb2 | 286 | if (!seg_is_striped(seg)) |
1832f310 | 287 | continue; |
b8c919b4 | 288 | |
579944d3 | 289 | sz = seg->stripe_size; |
b8c919b4 | 290 | str = seg->area_count; |
52dc2139 | 291 | |
da4e57f2 | 292 | if ((seg_stripesize && seg_stripesize != sz |
241913fe AK |
293 | && !lp->stripe_size) || |
294 | (seg_stripes && seg_stripes != str && !lp->stripes)) { | |
52dc2139 AK |
295 | log_error("Please specify number of " |
296 | "stripes (-i) and stripesize (-I)"); | |
7f0dc9c4 | 297 | return EINVALID_CMD_LINE; |
52dc2139 AK |
298 | } |
299 | ||
300 | seg_stripesize = sz; | |
301 | seg_stripes = str; | |
302 | } | |
303 | ||
241913fe AK |
304 | if (!lp->stripes) |
305 | lp->stripes = seg_stripes; | |
52dc2139 | 306 | |
241913fe | 307 | if (!lp->stripe_size && lp->stripes > 1) { |
25b73380 | 308 | if (seg_stripesize) { |
12de747d | 309 | log_print("Using stripesize of last segment %s", |
72b2cb61 | 310 | display_size(cmd, (uint64_t) seg_stripesize)); |
241913fe | 311 | lp->stripe_size = seg_stripesize; |
25b73380 | 312 | } else { |
7f0dc9c4 | 313 | lp->stripe_size = |
2293567c | 314 | find_config_tree_int(cmd, |
8ef2b021 | 315 | "metadata/stripesize", |
8ef2b021 | 316 | DEFAULT_STRIPESIZE) * 2; |
12de747d | 317 | log_print("Using default stripesize %s", |
72b2cb61 | 318 | display_size(cmd, (uint64_t) lp->stripe_size)); |
25b73380 AK |
319 | } |
320 | } | |
52dc2139 AK |
321 | } |
322 | ||
ffb0e538 AK |
323 | /* If extending, find mirrors of last segment */ |
324 | if ((lp->extents > lv->le_count)) { | |
325 | list_iterate_back_items(seg, &lv->segments) { | |
326 | if (seg_is_mirrored(seg)) | |
327 | seg_mirrors = seg->area_count; | |
328 | else | |
329 | seg_mirrors = 0; | |
330 | break; | |
331 | } | |
332 | if (!arg_count(cmd, mirrors_ARG) && seg_mirrors) { | |
333 | log_print("Extending %" PRIu32 " mirror images.", | |
334 | seg_mirrors); | |
335 | lp->mirrors = seg_mirrors; | |
336 | } | |
337 | if ((arg_count(cmd, mirrors_ARG) || seg_mirrors) && | |
338 | (lp->mirrors != seg_mirrors)) { | |
339 | log_error("Cannot vary number of mirrors in LV yet."); | |
340 | return EINVALID_CMD_LINE; | |
341 | } | |
342 | } | |
343 | ||
52dc2139 | 344 | /* If reducing, find stripes, stripesize & size of last segment */ |
241913fe | 345 | if (lp->extents < lv->le_count) { |
25b73380 | 346 | extents_used = 0; |
52dc2139 | 347 | |
ffb0e538 AK |
348 | if (lp->stripes || lp->stripe_size || lp->mirrors) |
349 | log_error("Ignoring stripes, stripesize and mirrors " | |
350 | "arguments when reducing"); | |
52dc2139 | 351 | |
f2b7349e | 352 | list_iterate_items(seg, &lv->segments) { |
579944d3 AK |
353 | seg_extents = seg->len; |
354 | ||
32469fb2 | 355 | if (seg_is_striped(seg)) { |
b8c919b4 AK |
356 | seg_stripesize = seg->stripe_size; |
357 | seg_stripes = seg->area_count; | |
358 | } | |
52dc2139 | 359 | |
ffb0e538 AK |
360 | if (seg_is_mirrored(seg)) |
361 | seg_mirrors = seg->area_count; | |
362 | else | |
363 | seg_mirrors = 0; | |
364 | ||
241913fe | 365 | if (lp->extents <= extents_used + seg_extents) |
52dc2139 AK |
366 | break; |
367 | ||
368 | extents_used += seg_extents; | |
369 | } | |
370 | ||
241913fe AK |
371 | seg_size = lp->extents - extents_used; |
372 | lp->stripe_size = seg_stripesize; | |
373 | lp->stripes = seg_stripes; | |
ffb0e538 | 374 | lp->mirrors = seg_mirrors; |
52dc2139 AK |
375 | } |
376 | ||
241913fe | 377 | if (lp->stripes > 1 && !lp->stripe_size) { |
25b73380 | 378 | log_error("Stripesize for striped segment should not be 0!"); |
7f0dc9c4 | 379 | return EINVALID_CMD_LINE; |
d4e5f63e | 380 | } |
5a52dca9 | 381 | |
241913fe AK |
382 | if ((lp->stripes > 1)) { |
383 | if (!(stripesize_extents = lp->stripe_size / vg->extent_size)) | |
d4e5f63e AK |
384 | stripesize_extents = 1; |
385 | ||
241913fe | 386 | if ((size_rest = seg_size % (lp->stripes * stripesize_extents))) { |
d4e5f63e AK |
387 | log_print("Rounding size (%d extents) down to stripe " |
388 | "boundary size for segment (%d extents)", | |
241913fe AK |
389 | lp->extents, lp->extents - size_rest); |
390 | lp->extents = lp->extents - size_rest; | |
d4e5f63e | 391 | } |
12de747d AK |
392 | |
393 | if (lp->stripe_size < STRIPE_SIZE_MIN) { | |
394 | log_error("Invalid stripe size %s", | |
72b2cb61 | 395 | display_size(cmd, (uint64_t) lp->stripe_size)); |
12de747d AK |
396 | return 0; |
397 | } | |
da4e57f2 | 398 | } |
52dc2139 | 399 | |
241913fe | 400 | if (lp->extents == lv->le_count) { |
52dc2139 | 401 | log_error("New size (%d extents) matches existing size " |
241913fe | 402 | "(%d extents)", lp->extents, lv->le_count); |
7f0dc9c4 | 403 | return EINVALID_CMD_LINE; |
52dc2139 AK |
404 | } |
405 | ||
241913fe AK |
406 | if (lp->extents < lv->le_count) { |
407 | if (lp->resize == LV_EXTEND) { | |
03a8a07d AK |
408 | log_error("New size given (%d extents) not larger " |
409 | "than existing size (%d extents)", | |
241913fe | 410 | lp->extents, lv->le_count); |
7f0dc9c4 | 411 | return EINVALID_CMD_LINE; |
03a8a07d | 412 | } else |
241913fe | 413 | lp->resize = LV_REDUCE; |
03a8a07d AK |
414 | } |
415 | ||
241913fe AK |
416 | if (lp->extents > lv->le_count) { |
417 | if (lp->resize == LV_REDUCE) { | |
03a8a07d | 418 | log_error("New size given (%d extents) not less than " |
241913fe | 419 | "existing size (%d extents)", lp->extents, |
03a8a07d | 420 | lv->le_count); |
7f0dc9c4 | 421 | return EINVALID_CMD_LINE; |
03a8a07d | 422 | } else |
241913fe | 423 | lp->resize = LV_EXTEND; |
03a8a07d AK |
424 | } |
425 | ||
f5190ed4 | 426 | if (lp->mirrors && activation() && |
f894b4b1 | 427 | lv_info(cmd, lv, &info, 0) && info.exists) { |
f5190ed4 AK |
428 | log_error("Mirrors cannot be resized while active yet."); |
429 | return ECMD_FAILED; | |
430 | } | |
864de9ce AK |
431 | |
432 | if (lv_is_origin(lv)) { | |
433 | if (lp->resize == LV_REDUCE) { | |
434 | log_error("Snapshot origin volumes cannot be reduced " | |
435 | "in size yet."); | |
436 | return ECMD_FAILED; | |
437 | } | |
438 | ||
439 | memset(&info, 0, sizeof(info)); | |
440 | ||
f894b4b1 | 441 | if (lv_info(cmd, lv, &info, 0) && info.exists) { |
864de9ce AK |
442 | log_error("Snapshot origin volumes can be resized " |
443 | "only while inactive: try lvchange -an"); | |
444 | return ECMD_FAILED; | |
445 | } | |
446 | } | |
447 | ||
241913fe AK |
448 | if (lp->resize == LV_REDUCE) { |
449 | if (lp->argc) | |
e7ddf416 | 450 | log_warn("Ignoring PVs on command line when reducing"); |
1a9ea74d | 451 | } else if (!(pvh = lp->argc ? create_pv_list(cmd->mem, vg, lp->argc, |
eabaa339 | 452 | lp->argv, 1) : &vg->pvs)) { |
1a9ea74d AK |
453 | stack; |
454 | return ECMD_FAILED; | |
455 | } | |
03a8a07d | 456 | |
1a9ea74d | 457 | if (lp->resize == LV_REDUCE || lp->resizefs) { |
25b73380 AK |
458 | memset(&info, 0, sizeof(info)); |
459 | ||
f894b4b1 | 460 | if (!lv_info(cmd, lv, &info, 1) && driver_version(NULL, 0)) { |
25b73380 | 461 | log_error("lv_info failed: aborting"); |
7f0dc9c4 | 462 | return ECMD_FAILED; |
41967a02 AK |
463 | } |
464 | ||
1a9ea74d AK |
465 | if (lp->resizefs && !info.exists) { |
466 | log_error("Logical volume %s must be activated " | |
467 | "before resizing filesystem", lp->lv_name); | |
468 | return ECMD_FAILED; | |
469 | } | |
470 | ||
471 | if (info.exists && !lp->resizefs && (lp->resize == LV_REDUCE)) { | |
e7ddf416 | 472 | log_warn("WARNING: Reducing active%s logical volume " |
41967a02 | 473 | "to %s", info.open_count ? " and open" : "", |
241913fe | 474 | display_size(cmd, (uint64_t) lp->extents * |
72b2cb61 | 475 | vg->extent_size)); |
03a8a07d | 476 | |
e7ddf416 PR |
477 | log_warn("THIS MAY DESTROY YOUR DATA " |
478 | "(filesystem etc.)"); | |
03a8a07d | 479 | |
1a9ea74d AK |
480 | if (!arg_count(cmd, force_ARG)) { |
481 | if (yes_no_prompt("Do you really want to " | |
482 | "reduce %s? [y/n]: ", | |
483 | lp->lv_name) == 'n') { | |
484 | log_print("Logical volume %s NOT " | |
485 | "reduced", lp->lv_name); | |
486 | return ECMD_FAILED; | |
487 | } | |
7379c678 PR |
488 | if (sigint_caught()) |
489 | return ECMD_FAILED; | |
03a8a07d AK |
490 | } |
491 | } | |
1a9ea74d | 492 | } |
03a8a07d | 493 | |
1a9ea74d | 494 | if (lp->resizefs) { |
0550c1b6 | 495 | if (dm_snprintf(lv_path, PATH_MAX, "%s%s/%s", cmd->dev_dir, |
1a9ea74d AK |
496 | lp->vg_name, lp->lv_name) < 0) { |
497 | log_error("Couldn't create LV path for %s", | |
498 | lp->lv_name); | |
7f0dc9c4 | 499 | return ECMD_FAILED; |
241913fe | 500 | } |
614a4508 | 501 | |
0550c1b6 | 502 | if (dm_snprintf(size_buf, SIZE_BUF, "%" PRIu64, |
1a9ea74d AK |
503 | (uint64_t) lp->extents * vg->extent_size / 2) |
504 | < 0) { | |
505 | log_error("Couldn't generate new LV size string"); | |
7f0dc9c4 | 506 | return ECMD_FAILED; |
1a9ea74d | 507 | } |
03a8a07d | 508 | |
1a9ea74d AK |
509 | if (!lp->nofsck) { |
510 | if (!exec_cmd("fsadm", "check", lv_path, NULL)) { | |
511 | stack; | |
512 | return ECMD_FAILED; | |
513 | } | |
8ef2b021 AK |
514 | } |
515 | ||
1a9ea74d AK |
516 | if (lp->resize == LV_REDUCE) { |
517 | if (!exec_cmd("fsadm", "resize", lv_path, size_buf)) { | |
518 | stack; | |
519 | return ECMD_FAILED; | |
520 | } | |
241913fe | 521 | } |
1a9ea74d | 522 | } |
614a4508 | 523 | |
1a9ea74d AK |
524 | if (!archive(vg)) { |
525 | stack; | |
526 | return ECMD_FAILED; | |
527 | } | |
03a8a07d | 528 | |
1a9ea74d AK |
529 | log_print("%sing logical volume %s to %s", |
530 | (lp->resize == LV_REDUCE) ? "Reduc" : "Extend", | |
531 | lp->lv_name, | |
72b2cb61 | 532 | display_size(cmd, (uint64_t) lp->extents * vg->extent_size)); |
1a9ea74d AK |
533 | |
534 | if (lp->resize == LV_REDUCE) { | |
32469fb2 | 535 | if (!lv_reduce(lv, lv->le_count - lp->extents)) { |
7f0dc9c4 AK |
536 | stack; |
537 | return ECMD_FAILED; | |
241913fe | 538 | } |
32469fb2 | 539 | } else if (!lv_extend(lv, lp->segtype, lp->stripes, |
ffb0e538 | 540 | lp->stripe_size, lp->mirrors, |
32469fb2 AK |
541 | lp->extents - lv->le_count, |
542 | NULL, 0u, 0u, pvh, alloc)) { | |
1a9ea74d AK |
543 | stack; |
544 | return ECMD_FAILED; | |
03a8a07d AK |
545 | } |
546 | ||
03a8a07d | 547 | /* store vg on disk(s) */ |
25b73380 | 548 | if (!vg_write(vg)) { |
914c9723 | 549 | stack; |
7f0dc9c4 | 550 | return ECMD_FAILED; |
cc8b2cd7 | 551 | } |
03a8a07d | 552 | |
6fda126d | 553 | backup(vg); |
cc219483 | 554 | |
914c9723 | 555 | /* If snapshot, must suspend all associated devices */ |
2cd0aa72 AK |
556 | if (lv_is_cow(lv)) |
557 | lock_lv = origin_from_cow(lv); | |
914c9723 | 558 | else |
0fb173aa | 559 | lock_lv = lv; |
914c9723 | 560 | |
0fb173aa | 561 | if (!suspend_lv(cmd, lock_lv)) { |
241913fe | 562 | log_error("Failed to suspend %s", lp->lv_name); |
914c9723 | 563 | vg_revert(vg); |
7f0dc9c4 | 564 | return ECMD_FAILED; |
914c9723 AK |
565 | } |
566 | ||
567 | if (!vg_commit(vg)) { | |
568 | stack; | |
0fb173aa | 569 | resume_lv(cmd, lock_lv); |
7f0dc9c4 | 570 | return ECMD_FAILED; |
914c9723 AK |
571 | } |
572 | ||
0fb173aa | 573 | if (!resume_lv(cmd, lock_lv)) { |
241913fe | 574 | log_error("Problem reactivating %s", lp->lv_name); |
7f0dc9c4 | 575 | return ECMD_FAILED; |
cc8b2cd7 | 576 | } |
03a8a07d | 577 | |
241913fe | 578 | log_print("Logical volume %s successfully resized", lp->lv_name); |
03a8a07d | 579 | |
1a9ea74d AK |
580 | if (lp->resizefs && (lp->resize == LV_EXTEND)) { |
581 | if (!exec_cmd("fsadm", "resize", lv_path, size_buf)) { | |
582 | stack; | |
583 | return ECMD_FAILED; | |
584 | } | |
585 | } | |
586 | ||
cfb7bfc7 | 587 | return ECMD_PROCESSED; |
03a8a07d | 588 | } |
241913fe AK |
589 | |
590 | int lvresize(struct cmd_context *cmd, int argc, char **argv) | |
591 | { | |
592 | struct lvresize_params lp; | |
593 | int r; | |
594 | ||
595 | memset(&lp, 0, sizeof(lp)); | |
596 | ||
8a2fc586 | 597 | if (!_lvresize_params(cmd, argc, argv, &lp)) |
241913fe AK |
598 | return EINVALID_CMD_LINE; |
599 | ||
600 | log_verbose("Finding volume group %s", lp.vg_name); | |
601 | if (!lock_vol(cmd, lp.vg_name, LCK_VG_WRITE)) { | |
602 | log_error("Can't get lock for %s", lp.vg_name); | |
603 | return ECMD_FAILED; | |
604 | } | |
605 | ||
606 | if (!(r = _lvresize(cmd, &lp))) | |
607 | stack; | |
608 | ||
609 | unlock_vg(cmd, lp.vg_name); | |
610 | ||
611 | return r; | |
612 | } |