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Commit | Line | Data |
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b1713d28 | 1 | /* |
67cdbd7e | 2 | * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
c8669f6b | 3 | * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved. |
b1713d28 | 4 | * |
6606c3ae AK |
5 | * This file is part of LVM2. |
6 | * | |
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. |
6606c3ae | 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 | |
b1713d28 JT |
14 | */ |
15 | ||
d1d9800e | 16 | #include "lib.h" |
a381c45a | 17 | #include "metadata.h" |
b1713d28 | 18 | #include "activate.h" |
914c9723 | 19 | #include "memlock.h" |
78125be9 | 20 | #include "display.h" |
f7a14956 | 21 | #include "fs.h" |
f894b4b1 | 22 | #include "lvm-exec.h" |
7d1552c9 | 23 | #include "lvm-file.h" |
41b2fd5f | 24 | #include "lvm-string.h" |
413cc918 | 25 | #include "toolcontext.h" |
de6c9183 | 26 | #include "dev_manager.h" |
de17d760 | 27 | #include "str_list.h" |
4922197a | 28 | #include "config.h" |
352a99b9 | 29 | #include "filter.h" |
15d91f5a | 30 | #include "segtype.h" |
12137231 JT |
31 | |
32 | #include <limits.h> | |
5986ec94 | 33 | #include <fcntl.h> |
914c9723 | 34 | #include <unistd.h> |
12137231 | 35 | |
6d52fb46 | 36 | #define _skip(fmt, args...) log_very_verbose("Skipping: " fmt , ## args) |
b1713d28 | 37 | |
7d1552c9 AK |
38 | int lvm1_present(struct cmd_context *cmd) |
39 | { | |
40 | char path[PATH_MAX]; | |
41 | ||
0550c1b6 | 42 | if (dm_snprintf(path, sizeof(path), "%s/lvm/global", cmd->proc_dir) |
7d1552c9 AK |
43 | < 0) { |
44 | log_error("LVM1 proc global snprintf failed"); | |
45 | return 0; | |
46 | } | |
47 | ||
48 | if (path_exists(path)) | |
49 | return 1; | |
50 | else | |
51 | return 0; | |
52 | } | |
53 | ||
6c81ed26 | 54 | int list_segment_modules(struct dm_pool *mem, const struct lv_segment *seg, |
2c44337b | 55 | struct dm_list *modules) |
6c81ed26 AK |
56 | { |
57 | unsigned int s; | |
58 | struct lv_segment *seg2, *snap_seg; | |
2c44337b | 59 | struct dm_list *snh; |
6c81ed26 AK |
60 | |
61 | if (seg->segtype->ops->modules_needed && | |
62 | !seg->segtype->ops->modules_needed(mem, seg, modules)) { | |
63 | log_error("module string allocation failed"); | |
64 | return 0; | |
65 | } | |
66 | ||
67 | if (lv_is_origin(seg->lv)) | |
2c44337b | 68 | dm_list_iterate(snh, &seg->lv->snapshot_segs) |
6c81ed26 | 69 | if (!list_lv_modules(mem, |
2c44337b | 70 | dm_list_struct_base(snh, |
6c81ed26 AK |
71 | struct lv_segment, |
72 | origin_list)->cow, | |
73 | modules)) | |
74 | return_0; | |
75 | ||
76 | if (lv_is_cow(seg->lv)) { | |
77 | snap_seg = find_cow(seg->lv); | |
78 | if (snap_seg->segtype->ops->modules_needed && | |
79 | !snap_seg->segtype->ops->modules_needed(mem, snap_seg, | |
80 | modules)) { | |
81 | log_error("snap_seg module string allocation failed"); | |
82 | return 0; | |
83 | } | |
84 | } | |
85 | ||
86 | for (s = 0; s < seg->area_count; s++) { | |
87 | switch (seg_type(seg, s)) { | |
88 | case AREA_LV: | |
89 | seg2 = find_seg_by_le(seg_lv(seg, s), seg_le(seg, s)); | |
90 | if (seg2 && !list_segment_modules(mem, seg2, modules)) | |
91 | return_0; | |
92 | break; | |
93 | case AREA_PV: | |
94 | case AREA_UNASSIGNED: | |
95 | ; | |
96 | } | |
97 | } | |
98 | ||
99 | return 1; | |
100 | } | |
101 | ||
102 | int list_lv_modules(struct dm_pool *mem, const struct logical_volume *lv, | |
2c44337b | 103 | struct dm_list *modules) |
6c81ed26 AK |
104 | { |
105 | struct lv_segment *seg; | |
106 | ||
2c44337b | 107 | dm_list_iterate_items(seg, &lv->segments) |
6c81ed26 AK |
108 | if (!list_segment_modules(mem, seg, modules)) |
109 | return_0; | |
110 | ||
111 | return 1; | |
112 | } | |
113 | ||
199e490e AK |
114 | #ifndef DEVMAPPER_SUPPORT |
115 | void set_activation(int act) | |
116 | { | |
f2046e0a AK |
117 | static int warned = 0; |
118 | ||
119 | if (warned || !act) | |
120 | return; | |
121 | ||
122 | log_error("Compiled without libdevmapper support. " | |
123 | "Can't enable activation."); | |
124 | ||
125 | warned = 1; | |
199e490e AK |
126 | } |
127 | int activation(void) | |
128 | { | |
129 | return 0; | |
130 | } | |
131 | int library_version(char *version, size_t size) | |
132 | { | |
133 | return 0; | |
134 | } | |
135 | int driver_version(char *version, size_t size) | |
136 | { | |
137 | return 0; | |
138 | } | |
bbf83db1 AK |
139 | int target_version(const char *target_name, uint32_t *maj, |
140 | uint32_t *min, uint32_t *patchlevel) | |
141 | { | |
142 | return 0; | |
143 | } | |
ed82bfd2 AK |
144 | int target_present(struct cmd_context *cmd, const char *target_name, |
145 | int use_modprobe) | |
d1f4953a AK |
146 | { |
147 | return 0; | |
148 | } | |
f894b4b1 | 149 | int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info, |
a6b22cf3 | 150 | int with_open_count, int with_read_ahead) |
199e490e AK |
151 | { |
152 | return 0; | |
153 | } | |
4bd9480d | 154 | int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, |
a6b22cf3 | 155 | struct lvinfo *info, int with_open_count, int with_read_ahead) |
4bd9480d AK |
156 | { |
157 | return 0; | |
158 | } | |
472ac5bd | 159 | int lv_snapshot_percent(const struct logical_volume *lv, float *percent) |
199e490e AK |
160 | { |
161 | return 0; | |
162 | } | |
472ac5bd AK |
163 | int lv_mirror_percent(struct cmd_context *cmd, struct logical_volume *lv, |
164 | int wait, float *percent, uint32_t *event_nr) | |
10b29b8d AK |
165 | { |
166 | return 0; | |
167 | } | |
199e490e AK |
168 | int lvs_in_vg_activated(struct volume_group *vg) |
169 | { | |
170 | return 0; | |
171 | } | |
1bf5aae9 | 172 | int lvs_in_vg_activated_by_uuid_only(struct volume_group *vg) |
b45c9f49 AK |
173 | { |
174 | return 0; | |
175 | } | |
199e490e AK |
176 | int lvs_in_vg_opened(struct volume_group *vg) |
177 | { | |
178 | return 0; | |
179 | } | |
658b5812 AK |
180 | int lv_suspend(struct cmd_context *cmd, const char *lvid_s) |
181 | { | |
182 | return 1; | |
183 | } | |
199e490e AK |
184 | int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s) |
185 | { | |
186 | return 1; | |
187 | } | |
658b5812 AK |
188 | int lv_resume(struct cmd_context *cmd, const char *lvid_s) |
189 | { | |
190 | return 1; | |
191 | } | |
199e490e AK |
192 | int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s) |
193 | { | |
194 | return 1; | |
195 | } | |
196 | int lv_deactivate(struct cmd_context *cmd, const char *lvid_s) | |
197 | { | |
198 | return 1; | |
199 | } | |
658b5812 AK |
200 | int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, |
201 | int *activate_lv) | |
202 | { | |
203 | return 1; | |
204 | } | |
07d31831 | 205 | int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
199e490e AK |
206 | { |
207 | return 1; | |
208 | } | |
07d31831 | 209 | int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 AK |
210 | { |
211 | return 1; | |
212 | } | |
f7dd6d84 AK |
213 | |
214 | int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv) | |
215 | { | |
216 | return 1; | |
217 | } | |
218 | ||
0ce83a83 | 219 | int pv_uses_vg(struct physical_volume *pv, |
3e3d5d85 | 220 | struct volume_group *vg) |
352a99b9 AK |
221 | { |
222 | return 0; | |
223 | } | |
224 | ||
2293567c AK |
225 | void activation_release(void) |
226 | { | |
227 | return; | |
228 | } | |
229 | ||
914c9723 AK |
230 | void activation_exit(void) |
231 | { | |
232 | return; | |
233 | } | |
199e490e AK |
234 | |
235 | #else /* DEVMAPPER_SUPPORT */ | |
236 | ||
d1d9800e AK |
237 | static int _activation = 1; |
238 | ||
8ef2b021 | 239 | void set_activation(int act) |
d1d9800e | 240 | { |
8ef2b021 | 241 | if (act == _activation) |
d1d9800e AK |
242 | return; |
243 | ||
8ef2b021 | 244 | _activation = act; |
d1d9800e AK |
245 | if (_activation) |
246 | log_verbose("Activation enabled. Device-mapper kernel " | |
247 | "driver will be used."); | |
248 | else | |
e7ddf416 | 249 | log_warn("WARNING: Activation disabled. No device-mapper " |
bfe2b548 | 250 | "interaction will be attempted."); |
d1d9800e AK |
251 | } |
252 | ||
8ef2b021 | 253 | int activation(void) |
d1d9800e AK |
254 | { |
255 | return _activation; | |
256 | } | |
257 | ||
de17d760 AK |
258 | static int _passes_activation_filter(struct cmd_context *cmd, |
259 | struct logical_volume *lv) | |
260 | { | |
25579907 | 261 | const struct config_node *cn; |
de17d760 AK |
262 | struct config_value *cv; |
263 | char *str; | |
264 | char path[PATH_MAX]; | |
265 | ||
2293567c | 266 | if (!(cn = find_config_tree_node(cmd, "activation/volume_list"))) { |
25579907 | 267 | /* If no host tags defined, activate */ |
2c44337b | 268 | if (dm_list_empty(&cmd->tags)) |
de17d760 AK |
269 | return 1; |
270 | ||
271 | /* If any host tag matches any LV or VG tag, activate */ | |
272 | if (str_list_match_list(&cmd->tags, &lv->tags) || | |
273 | str_list_match_list(&cmd->tags, &lv->vg->tags)) | |
274 | return 1; | |
275 | ||
276 | /* Don't activate */ | |
277 | return 0; | |
278 | } | |
279 | ||
280 | for (cv = cn->v; cv; cv = cv->next) { | |
281 | if (cv->type != CFG_STRING) { | |
282 | log_error("Ignoring invalid string in config file " | |
283 | "activation/volume_list"); | |
284 | continue; | |
285 | } | |
286 | str = cv->v.str; | |
287 | if (!*str) { | |
288 | log_error("Ignoring empty string in config file " | |
289 | "activation/volume_list"); | |
290 | continue; | |
291 | } | |
292 | ||
293 | /* Tag? */ | |
294 | if (*str == '@') { | |
295 | str++; | |
296 | if (!*str) { | |
297 | log_error("Ignoring empty tag in config file " | |
298 | "activation/volume_list"); | |
299 | continue; | |
300 | } | |
301 | /* If any host tag matches any LV or VG tag, activate */ | |
302 | if (!strcmp(str, "*")) { | |
303 | if (str_list_match_list(&cmd->tags, &lv->tags) | |
304 | || str_list_match_list(&cmd->tags, | |
305 | &lv->vg->tags)) | |
306 | return 1; | |
307 | else | |
308 | continue; | |
309 | } | |
310 | /* If supplied tag matches LV or VG tag, activate */ | |
311 | if (str_list_match_item(&lv->tags, str) || | |
312 | str_list_match_item(&lv->vg->tags, str)) | |
313 | return 1; | |
314 | else | |
315 | continue; | |
316 | } | |
13835b5f | 317 | if (!strchr(str, '/')) { |
de17d760 AK |
318 | /* vgname supplied */ |
319 | if (!strcmp(str, lv->vg->name)) | |
320 | return 1; | |
321 | else | |
322 | continue; | |
323 | } | |
324 | /* vgname/lvname */ | |
0550c1b6 | 325 | if (dm_snprintf(path, sizeof(path), "%s/%s", lv->vg->name, |
de17d760 | 326 | lv->name) < 0) { |
0550c1b6 | 327 | log_error("dm_snprintf error from %s/%s", lv->vg->name, |
de17d760 AK |
328 | lv->name); |
329 | continue; | |
330 | } | |
331 | if (!strcmp(path, str)) | |
332 | return 1; | |
333 | } | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
fae0c576 AK |
338 | int library_version(char *version, size_t size) |
339 | { | |
d1d9800e AK |
340 | if (!activation()) |
341 | return 0; | |
342 | ||
f894b4b1 | 343 | return dm_get_library_version(version, size); |
fae0c576 AK |
344 | } |
345 | ||
fae0c576 AK |
346 | int driver_version(char *version, size_t size) |
347 | { | |
d1d9800e AK |
348 | if (!activation()) |
349 | return 0; | |
350 | ||
fae0c576 | 351 | log_very_verbose("Getting driver version"); |
fae0c576 | 352 | |
f894b4b1 | 353 | return dm_driver_version(version, size); |
fae0c576 AK |
354 | } |
355 | ||
bbf83db1 AK |
356 | int target_version(const char *target_name, uint32_t *maj, |
357 | uint32_t *min, uint32_t *patchlevel) | |
d1f4953a AK |
358 | { |
359 | int r = 0; | |
360 | struct dm_task *dmt; | |
361 | struct dm_versions *target, *last_target; | |
362 | ||
d1f4953a | 363 | log_very_verbose("Getting target version for %s", target_name); |
5f4b2acf AK |
364 | if (!(dmt = dm_task_create(DM_DEVICE_LIST_VERSIONS))) |
365 | return_0; | |
d1f4953a AK |
366 | |
367 | if (!dm_task_run(dmt)) { | |
368 | log_debug("Failed to get %s target version", target_name); | |
369 | /* Assume this was because LIST_VERSIONS isn't supported */ | |
370 | return 1; | |
371 | } | |
372 | ||
373 | target = dm_task_get_versions(dmt); | |
374 | ||
375 | do { | |
376 | last_target = target; | |
377 | ||
378 | if (!strcmp(target_name, target->name)) { | |
379 | r = 1; | |
bbf83db1 AK |
380 | *maj = target->version[0]; |
381 | *min = target->version[1]; | |
382 | *patchlevel = target->version[2]; | |
d1f4953a AK |
383 | goto out; |
384 | } | |
385 | ||
386 | target = (void *) target + target->next; | |
387 | } while (last_target != target); | |
388 | ||
389 | out: | |
390 | dm_task_destroy(dmt); | |
391 | ||
392 | return r; | |
393 | } | |
394 | ||
ed82bfd2 | 395 | int module_present(struct cmd_context *cmd, const char *target_name) |
f894b4b1 | 396 | { |
5619c629 | 397 | int ret = 0; |
03b49fe1 | 398 | #ifdef MODPROBE_CMD |
f894b4b1 | 399 | char module[128]; |
c8669f6b | 400 | const char *argv[3]; |
5619c629 MB |
401 | |
402 | if (dm_snprintf(module, sizeof(module), "dm-%s", target_name) < 0) { | |
403 | log_error("module_present module name too long: %s", | |
404 | target_name); | |
405 | return 0; | |
406 | } | |
407 | ||
c8669f6b ZK |
408 | argv[0] = MODPROBE_CMD; |
409 | argv[1] = module; | |
410 | argv[2] = NULL; | |
411 | ||
ed82bfd2 | 412 | ret = exec_cmd(cmd, argv); |
03b49fe1 | 413 | #endif |
5619c629 MB |
414 | return ret; |
415 | } | |
416 | ||
ed82bfd2 AK |
417 | int target_present(struct cmd_context *cmd, const char *target_name, |
418 | int use_modprobe) | |
5619c629 MB |
419 | { |
420 | uint32_t maj, min, patchlevel; | |
f894b4b1 AK |
421 | |
422 | if (!activation()) | |
423 | return 0; | |
424 | ||
425 | #ifdef MODPROBE_CMD | |
5f4b2acf | 426 | if (use_modprobe) { |
bbf83db1 | 427 | if (target_version(target_name, &maj, &min, &patchlevel)) |
5f4b2acf | 428 | return 1; |
f894b4b1 | 429 | |
ed82bfd2 | 430 | if (!module_present(cmd, target_name)) |
5f4b2acf | 431 | return_0; |
f894b4b1 AK |
432 | } |
433 | #endif | |
434 | ||
bbf83db1 | 435 | return target_version(target_name, &maj, &min, &patchlevel); |
f894b4b1 AK |
436 | } |
437 | ||
de6c9183 JT |
438 | /* |
439 | * Returns 1 if info structure populated, else 0 on failure. | |
440 | */ | |
f894b4b1 | 441 | static int _lv_info(struct cmd_context *cmd, const struct logical_volume *lv, int with_mknodes, |
a6b22cf3 | 442 | struct lvinfo *info, int with_open_count, int with_read_ahead, unsigned by_uuid_only) |
37ed70b9 | 443 | { |
199e490e | 444 | struct dm_info dminfo; |
b45c9f49 | 445 | char *name = NULL; |
4a624ca0 | 446 | |
d1d9800e AK |
447 | if (!activation()) |
448 | return 0; | |
449 | ||
b45c9f49 AK |
450 | if (!by_uuid_only && |
451 | !(name = build_dm_name(cmd->mem, lv->vg->name, lv->name, NULL))) | |
5f4b2acf | 452 | return_0; |
4a624ca0 | 453 | |
f894b4b1 | 454 | log_debug("Getting device info for %s", name); |
03b49fe1 | 455 | if (!dev_manager_info(lv->vg->cmd->mem, name, lv, with_mknodes, |
a6b22cf3 AK |
456 | with_open_count, with_read_ahead, &dminfo, |
457 | &info->read_ahead)) { | |
b45c9f49 AK |
458 | if (name) |
459 | dm_pool_free(cmd->mem, name); | |
5f4b2acf | 460 | return_0; |
f894b4b1 | 461 | } |
4a624ca0 | 462 | |
199e490e AK |
463 | info->exists = dminfo.exists; |
464 | info->suspended = dminfo.suspended; | |
465 | info->open_count = dminfo.open_count; | |
466 | info->major = dminfo.major; | |
467 | info->minor = dminfo.minor; | |
468 | info->read_only = dminfo.read_only; | |
5f4b2acf AK |
469 | info->live_table = dminfo.live_table; |
470 | info->inactive_table = dminfo.inactive_table; | |
199e490e | 471 | |
b45c9f49 AK |
472 | if (name) |
473 | dm_pool_free(cmd->mem, name); | |
474 | ||
f894b4b1 | 475 | return 1; |
de6c9183 | 476 | } |
a62ee8ad | 477 | |
f894b4b1 | 478 | int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info, |
a6b22cf3 | 479 | int with_open_count, int with_read_ahead) |
8c0388e4 | 480 | { |
a6b22cf3 | 481 | return _lv_info(cmd, lv, 0, info, with_open_count, with_read_ahead, 0); |
8c0388e4 AK |
482 | } |
483 | ||
4bd9480d | 484 | int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, |
a6b22cf3 | 485 | struct lvinfo *info, int with_open_count, int with_read_ahead) |
4bd9480d AK |
486 | { |
487 | struct logical_volume *lv; | |
488 | ||
7a593325 | 489 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
4bd9480d AK |
490 | return 0; |
491 | ||
a6b22cf3 | 492 | return _lv_info(cmd, lv, 0, info, with_open_count, with_read_ahead, 0); |
4bd9480d AK |
493 | } |
494 | ||
1951dba9 AL |
495 | /* |
496 | * Returns 1 if percent set, else 0 on failure. | |
497 | */ | |
472ac5bd | 498 | int lv_snapshot_percent(const struct logical_volume *lv, float *percent) |
1951dba9 AL |
499 | { |
500 | int r; | |
501 | struct dev_manager *dm; | |
502 | ||
d1d9800e AK |
503 | if (!activation()) |
504 | return 0; | |
505 | ||
5f4b2acf AK |
506 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
507 | return_0; | |
1951dba9 | 508 | |
c826c0d1 | 509 | if (!(r = dev_manager_snapshot_percent(dm, lv, percent))) |
1951dba9 | 510 | stack; |
c826c0d1 | 511 | |
1951dba9 AL |
512 | dev_manager_destroy(dm); |
513 | ||
514 | return r; | |
515 | } | |
516 | ||
10b29b8d | 517 | /* FIXME Merge with snapshot_percent */ |
472ac5bd AK |
518 | int lv_mirror_percent(struct cmd_context *cmd, struct logical_volume *lv, |
519 | int wait, float *percent, uint32_t *event_nr) | |
10b29b8d AK |
520 | { |
521 | int r; | |
522 | struct dev_manager *dm; | |
b65b777d | 523 | struct lvinfo info; |
10b29b8d | 524 | |
876003dc AK |
525 | /* If mirrored LV is temporarily shrinked to 1 area (= linear), |
526 | * it should be considered in-sync. */ | |
2c44337b | 527 | if (dm_list_size(&lv->segments) == 1 && first_seg(lv)->area_count == 1) { |
876003dc AK |
528 | *percent = 100.0; |
529 | return 1; | |
530 | } | |
531 | ||
10b29b8d AK |
532 | if (!activation()) |
533 | return 0; | |
534 | ||
a6b22cf3 | 535 | if (!lv_info(cmd, lv, &info, 0, 0)) |
5f4b2acf | 536 | return_0; |
b65b777d AK |
537 | |
538 | if (!info.exists) | |
539 | return 0; | |
540 | ||
5f4b2acf AK |
541 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
542 | return_0; | |
10b29b8d AK |
543 | |
544 | if (!(r = dev_manager_mirror_percent(dm, lv, wait, percent, event_nr))) | |
545 | stack; | |
546 | ||
547 | dev_manager_destroy(dm); | |
548 | ||
549 | return r; | |
550 | } | |
551 | ||
b45c9f49 AK |
552 | static int _lv_active(struct cmd_context *cmd, struct logical_volume *lv, |
553 | unsigned by_uuid_only) | |
2ba80b43 | 554 | { |
199e490e | 555 | struct lvinfo info; |
2ba80b43 | 556 | |
a6b22cf3 | 557 | if (!_lv_info(cmd, lv, 0, &info, 0, 0, by_uuid_only)) { |
2ba80b43 | 558 | stack; |
de6c9183 | 559 | return -1; |
2ba80b43 JT |
560 | } |
561 | ||
de6c9183 | 562 | return info.exists; |
2ba80b43 JT |
563 | } |
564 | ||
f894b4b1 | 565 | static int _lv_open_count(struct cmd_context *cmd, struct logical_volume *lv) |
5986ec94 | 566 | { |
199e490e | 567 | struct lvinfo info; |
5986ec94 | 568 | |
a6b22cf3 | 569 | if (!lv_info(cmd, lv, &info, 1, 0)) { |
5986ec94 | 570 | stack; |
de6c9183 | 571 | return -1; |
5986ec94 JT |
572 | } |
573 | ||
de6c9183 | 574 | return info.open_count; |
5986ec94 JT |
575 | } |
576 | ||
658b5812 | 577 | static int _lv_activate_lv(struct logical_volume *lv) |
b1713d28 | 578 | { |
6d52fb46 | 579 | int r; |
de6c9183 | 580 | struct dev_manager *dm; |
b1713d28 | 581 | |
5f4b2acf AK |
582 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
583 | return_0; | |
ae2bb665 | 584 | |
0fe3a2c5 | 585 | if (!(r = dev_manager_activate(dm, lv))) |
6d52fb46 | 586 | stack; |
ae2bb665 | 587 | |
de6c9183 | 588 | dev_manager_destroy(dm); |
ae2bb665 | 589 | return r; |
b1713d28 | 590 | } |
a381c45a | 591 | |
5f4b2acf | 592 | static int _lv_preload(struct logical_volume *lv) |
0a5e4a14 | 593 | { |
de6c9183 JT |
594 | int r; |
595 | struct dev_manager *dm; | |
37ed70b9 | 596 | |
5f4b2acf AK |
597 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
598 | return_0; | |
599 | ||
600 | if (!(r = dev_manager_preload(dm, lv))) | |
6d52fb46 | 601 | stack; |
5f4b2acf AK |
602 | |
603 | dev_manager_destroy(dm); | |
604 | return r; | |
605 | } | |
606 | ||
607 | static int _lv_deactivate(struct logical_volume *lv) | |
608 | { | |
609 | int r; | |
610 | struct dev_manager *dm; | |
611 | ||
612 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) | |
613 | return_0; | |
37ed70b9 | 614 | |
de6c9183 | 615 | if (!(r = dev_manager_deactivate(dm, lv))) |
37ed70b9 | 616 | stack; |
37ed70b9 | 617 | |
de6c9183 JT |
618 | dev_manager_destroy(dm); |
619 | return r; | |
37ed70b9 JT |
620 | } |
621 | ||
9cd3426d | 622 | static int _lv_suspend_lv(struct logical_volume *lv, int lockfs) |
4a624ca0 | 623 | { |
20c5fcf7 AK |
624 | int r; |
625 | struct dev_manager *dm; | |
c2d72fd4 | 626 | |
5f4b2acf AK |
627 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name))) |
628 | return_0; | |
0a5e4a14 | 629 | |
9cd3426d | 630 | if (!(r = dev_manager_suspend(dm, lv, lockfs))) |
37ed70b9 | 631 | stack; |
0a5e4a14 | 632 | |
20c5fcf7 AK |
633 | dev_manager_destroy(dm); |
634 | return r; | |
6d52fb46 | 635 | } |
4a624ca0 | 636 | |
8c013da4 | 637 | /* |
f75c11ed | 638 | * These two functions return the number of visible LVs in the state, |
8c013da4 AK |
639 | * or -1 on error. |
640 | */ | |
b45c9f49 | 641 | static int _lvs_in_vg_activated(struct volume_group *vg, unsigned by_uuid_only) |
f047219b | 642 | { |
60f13f01 | 643 | struct lv_list *lvl; |
94b8220f | 644 | int count = 0; |
37ed70b9 | 645 | |
d1d9800e AK |
646 | if (!activation()) |
647 | return 0; | |
648 | ||
2c44337b | 649 | dm_list_iterate_items(lvl, &vg->lvs) { |
60f13f01 | 650 | if (lvl->lv->status & VISIBLE_LV) |
b45c9f49 | 651 | count += (_lv_active(vg->cmd, lvl->lv, by_uuid_only) == 1); |
37ed70b9 JT |
652 | } |
653 | ||
654 | return count; | |
f047219b | 655 | } |
2ba80b43 | 656 | |
b45c9f49 AK |
657 | int lvs_in_vg_activated_by_uuid_only(struct volume_group *vg) |
658 | { | |
659 | return _lvs_in_vg_activated(vg, 1); | |
660 | } | |
661 | ||
662 | int lvs_in_vg_activated(struct volume_group *vg) | |
663 | { | |
664 | return _lvs_in_vg_activated(vg, 0); | |
665 | } | |
666 | ||
08c9ff43 | 667 | int lvs_in_vg_opened(const struct volume_group *vg) |
2ba80b43 | 668 | { |
08c9ff43 | 669 | const struct lv_list *lvl; |
94b8220f | 670 | int count = 0; |
2ba80b43 | 671 | |
d1d9800e AK |
672 | if (!activation()) |
673 | return 0; | |
674 | ||
2c44337b | 675 | dm_list_iterate_items(lvl, &vg->lvs) { |
b4795264 | 676 | if (lv_is_displayable(lvl->lv)) |
f894b4b1 | 677 | count += (_lv_open_count(vg->cmd, lvl->lv) > 0); |
2ba80b43 JT |
678 | } |
679 | ||
680 | return count; | |
681 | } | |
413cc918 | 682 | |
5ca6698f DW |
683 | /* |
684 | * Determine whether an LV is active locally or in a cluster. | |
685 | * Assumes vg lock held. | |
686 | * Returns: | |
687 | * 0 - not active locally or on any node in cluster | |
688 | * 1 - active either locally or some node in the cluster | |
689 | */ | |
690 | int lv_is_active(struct logical_volume *lv) | |
691 | { | |
692 | if (_lv_active(lv->vg->cmd, lv, 0)) | |
693 | return 1; | |
694 | ||
695 | if (!vg_is_clustered(lv->vg)) | |
696 | return 0; | |
697 | ||
698 | /* | |
699 | * FIXME: Cluster does not report per-node LV activation status. | |
700 | * Currently the best we can do is try exclusive local activation. | |
701 | * If that succeeds, we know the LV is not active elsewhere in the | |
702 | * cluster. | |
703 | */ | |
704 | if (activate_lv_excl(lv->vg->cmd, lv)) { | |
705 | deactivate_lv(lv->vg->cmd, lv); | |
706 | return 0; | |
707 | } | |
708 | ||
709 | /* | |
710 | * Exclusive local activation failed so assume it is active elsewhere. | |
711 | */ | |
712 | return 1; | |
713 | } | |
714 | ||
3e3d5d85 | 715 | /* |
8a37910d AK |
716 | * Returns 0 if an attempt to (un)monitor the device failed. |
717 | * Returns 1 otherwise. | |
3e3d5d85 | 718 | */ |
8a37910d AK |
719 | int monitor_dev_for_events(struct cmd_context *cmd, |
720 | struct logical_volume *lv, int monitor) | |
15d91f5a | 721 | { |
ed09d7e3 | 722 | #ifdef DMEVENTD |
8a37910d AK |
723 | int i, pending = 0, monitored; |
724 | int r = 1; | |
2c44337b | 725 | struct dm_list *tmp, *snh, *snht; |
15d91f5a | 726 | struct lv_segment *seg; |
24f4552b | 727 | int (*monitor_fn) (struct lv_segment *s, int e); |
4e9083db | 728 | uint32_t s; |
15d91f5a | 729 | |
20db8ffc AK |
730 | /* skip dmeventd code altogether */ |
731 | if (dmeventd_monitor_mode() == DMEVENTD_MONITOR_IGNORE) | |
732 | return 1; | |
733 | ||
8a37910d AK |
734 | /* |
735 | * Nothing to do if dmeventd configured not to be used. | |
736 | */ | |
737 | if (monitor && !dmeventd_monitor_mode()) | |
3e3d5d85 AK |
738 | return 1; |
739 | ||
67961c7c PR |
740 | /* |
741 | * In case of a snapshot device, we monitor lv->snapshot->lv, | |
742 | * not the actual LV itself. | |
743 | */ | |
744 | if (lv_is_cow(lv)) | |
745 | return monitor_dev_for_events(cmd, lv->snapshot->lv, monitor); | |
746 | ||
747 | /* | |
748 | * In case this LV is a snapshot origin, we instead monitor | |
749 | * each of its respective snapshots (the origin itself does | |
750 | * not need to be monitored). | |
751 | * | |
752 | * TODO: This may change when snapshots of mirrors are allowed. | |
753 | */ | |
754 | if (lv_is_origin(lv)) { | |
2c44337b AK |
755 | dm_list_iterate_safe(snh, snht, &lv->snapshot_segs) |
756 | if (!monitor_dev_for_events(cmd, dm_list_struct_base(snh, | |
0c06de63 AK |
757 | struct lv_segment, origin_list)->cow, monitor)) |
758 | r = 0; | |
67961c7c PR |
759 | return r; |
760 | } | |
761 | ||
2c44337b AK |
762 | dm_list_iterate(tmp, &lv->segments) { |
763 | seg = dm_list_item(tmp, struct lv_segment); | |
15d91f5a | 764 | |
4e9083db AK |
765 | /* Recurse for AREA_LV */ |
766 | for (s = 0; s < seg->area_count; s++) { | |
767 | if (seg_type(seg, s) != AREA_LV) | |
768 | continue; | |
769 | if (!monitor_dev_for_events(cmd, seg_lv(seg, s), | |
770 | monitor)) { | |
771 | log_error("Failed to %smonitor %s", | |
772 | monitor ? "" : "un", | |
773 | seg_lv(seg, s)->name); | |
774 | r = 0; | |
775 | } | |
776 | } | |
777 | ||
8ef6eb30 AK |
778 | if (!seg_monitored(seg) || (seg->status & PVMOVE)) |
779 | continue; | |
8a37910d AK |
780 | |
781 | monitor_fn = NULL; | |
ed09d7e3 | 782 | |
8ef6eb30 | 783 | /* Check monitoring status */ |
8a37910d AK |
784 | if (seg->segtype->ops->target_monitored) |
785 | monitored = seg->segtype->ops->target_monitored(seg, &pending); | |
8ef6eb30 AK |
786 | else |
787 | continue; /* segtype doesn't support registration */ | |
788 | ||
789 | /* | |
790 | * FIXME: We should really try again if pending | |
791 | */ | |
8a37910d | 792 | monitored = (pending) ? 0 : monitored; |
8ef6eb30 | 793 | |
8a37910d AK |
794 | if (monitor) { |
795 | if (monitored) | |
8ef6eb30 | 796 | log_verbose("%s/%s already monitored.", lv->vg->name, lv->name); |
8a37910d AK |
797 | else if (seg->segtype->ops->target_monitor_events) |
798 | monitor_fn = seg->segtype->ops->target_monitor_events; | |
8ef6eb30 | 799 | } else { |
8a37910d | 800 | if (!monitored) |
8ef6eb30 | 801 | log_verbose("%s/%s already not monitored.", lv->vg->name, lv->name); |
8a37910d AK |
802 | else if (seg->segtype->ops->target_unmonitor_events) |
803 | monitor_fn = seg->segtype->ops->target_unmonitor_events; | |
8ef6eb30 | 804 | } |
15d91f5a | 805 | |
8ef6eb30 | 806 | /* Do [un]monitor */ |
8a37910d | 807 | if (!monitor_fn) |
3e3d5d85 | 808 | continue; |
e24e7130 | 809 | |
8a37910d AK |
810 | log_verbose("%sonitoring %s/%s", monitor ? "M" : "Not m", lv->vg->name, lv->name); |
811 | ||
3e3d5d85 | 812 | /* FIXME specify events */ |
57fc4cc0 | 813 | if (!monitor_fn(seg, 0)) { |
8a37910d AK |
814 | log_error("%s/%s: %s segment monitoring function failed.", |
815 | lv->vg->name, lv->name, seg->segtype->name); | |
816 | return 0; | |
e24e7130 | 817 | } |
3e3d5d85 | 818 | |
8ef6eb30 AK |
819 | /* Check [un]monitor results */ |
820 | /* Try a couple times if pending, but not forever... */ | |
821 | for (i = 0; i < 10; i++) { | |
822 | pending = 0; | |
8a37910d | 823 | monitored = seg->segtype->ops->target_monitored(seg, &pending); |
8ef6eb30 | 824 | if (pending || |
8a37910d AK |
825 | (!monitored && monitor) || |
826 | (monitored && !monitor)) | |
827 | log_very_verbose("%s/%s %smonitoring still pending: waiting...", | |
828 | lv->vg->name, lv->name, monitor ? "" : "un"); | |
8ef6eb30 AK |
829 | else |
830 | break; | |
831 | sleep(1); | |
832 | } | |
833 | ||
8a37910d | 834 | r = (monitored && monitor) || (!monitored && !monitor); |
15d91f5a | 835 | } |
e6493477 | 836 | |
3e3d5d85 AK |
837 | return r; |
838 | #else | |
15d91f5a | 839 | return 1; |
3e3d5d85 | 840 | #endif |
15d91f5a | 841 | } |
15d91f5a | 842 | |
658b5812 AK |
843 | static int _lv_suspend(struct cmd_context *cmd, const char *lvid_s, |
844 | int error_if_not_suspended) | |
413cc918 | 845 | { |
095bbca6 | 846 | struct logical_volume *lv = NULL, *lv_pre = NULL; |
199e490e | 847 | struct lvinfo info; |
095bbca6 | 848 | int r = 0, lockfs = 0; |
413cc918 | 849 | |
d1d9800e AK |
850 | if (!activation()) |
851 | return 1; | |
852 | ||
8b888354 | 853 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 854 | goto_out; |
8b888354 | 855 | |
7a593325 | 856 | /* Use precommitted metadata if present */ |
8b888354 | 857 | if (!(lv_pre = lv_from_lvid(cmd, lvid_s, 1))) |
095bbca6 | 858 | goto_out; |
413cc918 | 859 | |
20c5fcf7 AK |
860 | if (test_mode()) { |
861 | _skip("Suspending '%s'.", lv->name); | |
095bbca6 MB |
862 | r = 1; |
863 | goto out; | |
20c5fcf7 AK |
864 | } |
865 | ||
a6b22cf3 | 866 | if (!lv_info(cmd, lv, &info, 0, 0)) |
095bbca6 | 867 | goto_out; |
41967a02 | 868 | |
095bbca6 MB |
869 | if (!info.exists || info.suspended) { |
870 | r = error_if_not_suspended ? 0 : 1; | |
871 | goto out; | |
872 | } | |
914c9723 | 873 | |
5f4b2acf | 874 | /* If VG was precommitted, preload devices for the LV */ |
8b888354 AK |
875 | if ((lv_pre->vg->status & PRECOMMITTED)) { |
876 | if (!_lv_preload(lv_pre)) { | |
5f4b2acf | 877 | /* FIXME Revert preloading */ |
095bbca6 | 878 | goto_out; |
5f4b2acf AK |
879 | } |
880 | } | |
881 | ||
8a37910d | 882 | if (!monitor_dev_for_events(cmd, lv, 0)) |
e24e7130 | 883 | /* FIXME Consider aborting here */ |
ed09d7e3 AK |
884 | stack; |
885 | ||
914c9723 | 886 | memlock_inc(); |
9cd3426d AK |
887 | |
888 | if (lv_is_origin(lv_pre) || lv_is_cow(lv_pre)) | |
889 | lockfs = 1; | |
890 | ||
891 | if (!_lv_suspend_lv(lv, lockfs)) { | |
914c9723 AK |
892 | memlock_dec(); |
893 | fs_unlock(); | |
095bbca6 | 894 | goto out; |
914c9723 | 895 | } |
8c013da4 | 896 | |
095bbca6 MB |
897 | r = 1; |
898 | out: | |
899 | if (lv_pre) | |
900 | vg_release(lv_pre->vg); | |
901 | if (lv) | |
902 | vg_release(lv->vg); | |
903 | ||
904 | return r; | |
413cc918 AK |
905 | } |
906 | ||
658b5812 AK |
907 | /* Returns success if the device is not active */ |
908 | int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s) | |
909 | { | |
910 | return _lv_suspend(cmd, lvid_s, 0); | |
911 | } | |
912 | ||
913 | int lv_suspend(struct cmd_context *cmd, const char *lvid_s) | |
914 | { | |
915 | return _lv_suspend(cmd, lvid_s, 1); | |
916 | } | |
917 | ||
918 | static int _lv_resume(struct cmd_context *cmd, const char *lvid_s, | |
919 | int error_if_not_active) | |
413cc918 AK |
920 | { |
921 | struct logical_volume *lv; | |
199e490e | 922 | struct lvinfo info; |
095bbca6 | 923 | int r = 0; |
413cc918 | 924 | |
d1d9800e AK |
925 | if (!activation()) |
926 | return 1; | |
927 | ||
7a593325 | 928 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 929 | goto out; |
413cc918 | 930 | |
20c5fcf7 AK |
931 | if (test_mode()) { |
932 | _skip("Resuming '%s'.", lv->name); | |
095bbca6 MB |
933 | r = 1; |
934 | goto out; | |
20c5fcf7 AK |
935 | } |
936 | ||
a6b22cf3 | 937 | if (!lv_info(cmd, lv, &info, 0, 0)) |
095bbca6 | 938 | goto_out; |
41967a02 | 939 | |
095bbca6 MB |
940 | if (!info.exists || !info.suspended) { |
941 | r = error_if_not_active ? 0 : 1; | |
942 | goto out; | |
943 | } | |
914c9723 | 944 | |
658b5812 | 945 | if (!_lv_activate_lv(lv)) |
095bbca6 | 946 | goto out; |
914c9723 AK |
947 | |
948 | memlock_dec(); | |
949 | fs_unlock(); | |
413cc918 | 950 | |
8a37910d | 951 | if (!monitor_dev_for_events(cmd, lv, 1)) |
ed09d7e3 | 952 | stack; |
15d91f5a | 953 | |
095bbca6 MB |
954 | r = 1; |
955 | out: | |
956 | if (lv) | |
957 | vg_release(lv->vg); | |
958 | ||
959 | return r; | |
413cc918 AK |
960 | } |
961 | ||
658b5812 AK |
962 | /* Returns success if the device is not active */ |
963 | int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s) | |
964 | { | |
965 | return _lv_resume(cmd, lvid_s, 0); | |
966 | } | |
967 | ||
968 | int lv_resume(struct cmd_context *cmd, const char *lvid_s) | |
969 | { | |
970 | return _lv_resume(cmd, lvid_s, 1); | |
971 | } | |
972 | ||
be326a2f | 973 | int lv_deactivate(struct cmd_context *cmd, const char *lvid_s) |
f4cbeaf0 AK |
974 | { |
975 | struct logical_volume *lv; | |
199e490e | 976 | struct lvinfo info; |
095bbca6 | 977 | int r = 0; |
f4cbeaf0 | 978 | |
d1d9800e AK |
979 | if (!activation()) |
980 | return 1; | |
981 | ||
7a593325 | 982 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 983 | goto out; |
f4cbeaf0 | 984 | |
20c5fcf7 AK |
985 | if (test_mode()) { |
986 | _skip("Deactivating '%s'.", lv->name); | |
095bbca6 MB |
987 | r = 1; |
988 | goto out; | |
20c5fcf7 AK |
989 | } |
990 | ||
a6b22cf3 | 991 | if (!lv_info(cmd, lv, &info, 1, 0)) |
095bbca6 | 992 | goto_out; |
41967a02 | 993 | |
095bbca6 MB |
994 | if (!info.exists) { |
995 | r = 1; | |
996 | goto out; | |
997 | } | |
f4cbeaf0 | 998 | |
c1f50521 | 999 | if (info.open_count && (lv->status & VISIBLE_LV)) { |
5f4b2acf | 1000 | log_error("LV %s/%s in use: not deactivating", lv->vg->name, |
0cf96f33 | 1001 | lv->name); |
095bbca6 | 1002 | goto out; |
0cf96f33 AK |
1003 | } |
1004 | ||
8a37910d | 1005 | if (!monitor_dev_for_events(cmd, lv, 0)) |
ed09d7e3 | 1006 | stack; |
15d91f5a | 1007 | |
914c9723 AK |
1008 | memlock_inc(); |
1009 | r = _lv_deactivate(lv); | |
1010 | memlock_dec(); | |
1011 | fs_unlock(); | |
1012 | ||
095bbca6 MB |
1013 | out: |
1014 | if (lv) | |
1015 | vg_release(lv->vg); | |
1016 | ||
914c9723 | 1017 | return r; |
f4cbeaf0 AK |
1018 | } |
1019 | ||
658b5812 AK |
1020 | /* Test if LV passes filter */ |
1021 | int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, | |
1022 | int *activate_lv) | |
1023 | { | |
1024 | struct logical_volume *lv; | |
095bbca6 | 1025 | int r = 0; |
658b5812 | 1026 | |
095bbca6 MB |
1027 | if (!activation()) { |
1028 | *activate_lv = 1; | |
1029 | return 1; | |
1030 | } | |
658b5812 | 1031 | |
424dd43e | 1032 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 1033 | goto out; |
658b5812 AK |
1034 | |
1035 | if (!_passes_activation_filter(cmd, lv)) { | |
1036 | log_verbose("Not activating %s/%s due to config file settings", | |
1037 | lv->vg->name, lv->name); | |
1038 | *activate_lv = 0; | |
095bbca6 MB |
1039 | } else |
1040 | *activate_lv = 1; | |
1041 | r = 1; | |
1042 | out: | |
1043 | if (lv) | |
1044 | vg_release(lv->vg); | |
658b5812 | 1045 | |
095bbca6 | 1046 | return r; |
658b5812 AK |
1047 | } |
1048 | ||
07d31831 AK |
1049 | static int _lv_activate(struct cmd_context *cmd, const char *lvid_s, |
1050 | int exclusive, int filter) | |
f4cbeaf0 AK |
1051 | { |
1052 | struct logical_volume *lv; | |
199e490e | 1053 | struct lvinfo info; |
095bbca6 | 1054 | int r = 0; |
f4cbeaf0 | 1055 | |
d1d9800e AK |
1056 | if (!activation()) |
1057 | return 1; | |
1058 | ||
424dd43e | 1059 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 1060 | goto out; |
f4cbeaf0 | 1061 | |
658b5812 | 1062 | if (filter && !_passes_activation_filter(cmd, lv)) { |
de17d760 AK |
1063 | log_verbose("Not activating %s/%s due to config file settings", |
1064 | lv->vg->name, lv->name); | |
095bbca6 | 1065 | goto out; |
de17d760 AK |
1066 | } |
1067 | ||
cda35408 | 1068 | if ((!lv->vg->cmd->partial_activation) && (lv->status & PARTIAL_LV)) { |
8c5bcdab AK |
1069 | log_error("Refusing activation of partial LV %s. Use --partial to override.", |
1070 | lv->name); | |
095bbca6 | 1071 | goto_out; |
8c5bcdab AK |
1072 | } |
1073 | ||
20c5fcf7 AK |
1074 | if (test_mode()) { |
1075 | _skip("Activating '%s'.", lv->name); | |
095bbca6 MB |
1076 | r = 1; |
1077 | goto out; | |
20c5fcf7 AK |
1078 | } |
1079 | ||
a6b22cf3 | 1080 | if (!lv_info(cmd, lv, &info, 0, 0)) |
095bbca6 | 1081 | goto_out; |
8c013da4 | 1082 | |
095bbca6 MB |
1083 | if (info.exists && !info.suspended && info.live_table) { |
1084 | r = 1; | |
1085 | goto out; | |
1086 | } | |
f4cbeaf0 | 1087 | |
07d31831 AK |
1088 | if (exclusive) |
1089 | lv->status |= ACTIVATE_EXCL; | |
1090 | ||
914c9723 | 1091 | memlock_inc(); |
658b5812 | 1092 | r = _lv_activate_lv(lv); |
914c9723 AK |
1093 | memlock_dec(); |
1094 | fs_unlock(); | |
1095 | ||
5efd97f1 | 1096 | if (r && !monitor_dev_for_events(cmd, lv, 1)) |
ed09d7e3 | 1097 | stack; |
15d91f5a | 1098 | |
095bbca6 MB |
1099 | out: |
1100 | if (lv) | |
1101 | vg_release(lv->vg); | |
1102 | ||
914c9723 | 1103 | return r; |
f4cbeaf0 | 1104 | } |
199e490e | 1105 | |
658b5812 | 1106 | /* Activate LV */ |
07d31831 | 1107 | int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 | 1108 | { |
07d31831 | 1109 | return _lv_activate(cmd, lvid_s, exclusive, 0); |
658b5812 AK |
1110 | } |
1111 | ||
1112 | /* Activate LV only if it passes filter */ | |
07d31831 | 1113 | int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 | 1114 | { |
07d31831 | 1115 | return _lv_activate(cmd, lvid_s, exclusive, 1); |
658b5812 AK |
1116 | } |
1117 | ||
f7dd6d84 AK |
1118 | int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv) |
1119 | { | |
1120 | struct lvinfo info; | |
1121 | int r = 1; | |
1122 | ||
8b076648 | 1123 | if (!lv) { |
2262b320 | 1124 | r = dm_mknodes(NULL); |
8b076648 AK |
1125 | fs_unlock(); |
1126 | return r; | |
1127 | } | |
1128 | ||
a6b22cf3 | 1129 | if (!_lv_info(cmd, lv, 1, &info, 0, 0, 0)) |
5f4b2acf | 1130 | return_0; |
f7dd6d84 | 1131 | |
3ad47d16 PR |
1132 | if (info.exists) { |
1133 | if (lv_is_visible(lv)) | |
1134 | r = dev_manager_lv_mknodes(lv); | |
1135 | } else | |
f09fe0ad | 1136 | r = dev_manager_lv_rmnodes(lv); |
f7dd6d84 AK |
1137 | |
1138 | fs_unlock(); | |
1139 | ||
1140 | return r; | |
1141 | } | |
1142 | ||
352a99b9 AK |
1143 | /* |
1144 | * Does PV use VG somewhere in its construction? | |
1145 | * Returns 1 on failure. | |
1146 | */ | |
898e6f8e | 1147 | int pv_uses_vg(struct physical_volume *pv, |
3e3d5d85 | 1148 | struct volume_group *vg) |
352a99b9 | 1149 | { |
352a99b9 AK |
1150 | if (!activation()) |
1151 | return 0; | |
1152 | ||
1153 | if (!dm_is_dm_major(MAJOR(pv->dev->dev))) | |
1154 | return 0; | |
1155 | ||
898e6f8e | 1156 | return dev_manager_device_uses_vg(pv->dev, vg); |
352a99b9 AK |
1157 | } |
1158 | ||
2293567c AK |
1159 | void activation_release(void) |
1160 | { | |
1161 | dev_manager_release(); | |
1162 | } | |
1163 | ||
914c9723 AK |
1164 | void activation_exit(void) |
1165 | { | |
1166 | dev_manager_exit(); | |
1167 | } | |
199e490e | 1168 | #endif |