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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. |
ab8b85fb | 3 | * Copyright (C) 2004-2011 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" |
d1e8046f | 31 | #include "sharedlib.h" |
12137231 JT |
32 | |
33 | #include <limits.h> | |
5986ec94 | 34 | #include <fcntl.h> |
914c9723 | 35 | #include <unistd.h> |
12137231 | 36 | |
6d52fb46 | 37 | #define _skip(fmt, args...) log_very_verbose("Skipping: " fmt , ## args) |
b1713d28 | 38 | |
7d1552c9 AK |
39 | int lvm1_present(struct cmd_context *cmd) |
40 | { | |
41 | char path[PATH_MAX]; | |
42 | ||
0550c1b6 | 43 | if (dm_snprintf(path, sizeof(path), "%s/lvm/global", cmd->proc_dir) |
7d1552c9 AK |
44 | < 0) { |
45 | log_error("LVM1 proc global snprintf failed"); | |
46 | return 0; | |
47 | } | |
48 | ||
49 | if (path_exists(path)) | |
50 | return 1; | |
51 | else | |
52 | return 0; | |
53 | } | |
54 | ||
6c81ed26 | 55 | int list_segment_modules(struct dm_pool *mem, const struct lv_segment *seg, |
2c44337b | 56 | struct dm_list *modules) |
6c81ed26 AK |
57 | { |
58 | unsigned int s; | |
59 | struct lv_segment *seg2, *snap_seg; | |
2c44337b | 60 | struct dm_list *snh; |
6c81ed26 AK |
61 | |
62 | if (seg->segtype->ops->modules_needed && | |
63 | !seg->segtype->ops->modules_needed(mem, seg, modules)) { | |
64 | log_error("module string allocation failed"); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | if (lv_is_origin(seg->lv)) | |
2c44337b | 69 | dm_list_iterate(snh, &seg->lv->snapshot_segs) |
6c81ed26 | 70 | if (!list_lv_modules(mem, |
2c44337b | 71 | dm_list_struct_base(snh, |
6c81ed26 AK |
72 | struct lv_segment, |
73 | origin_list)->cow, | |
74 | modules)) | |
75 | return_0; | |
76 | ||
77 | if (lv_is_cow(seg->lv)) { | |
78 | snap_seg = find_cow(seg->lv); | |
79 | if (snap_seg->segtype->ops->modules_needed && | |
80 | !snap_seg->segtype->ops->modules_needed(mem, snap_seg, | |
81 | modules)) { | |
82 | log_error("snap_seg module string allocation failed"); | |
83 | return 0; | |
84 | } | |
85 | } | |
86 | ||
87 | for (s = 0; s < seg->area_count; s++) { | |
88 | switch (seg_type(seg, s)) { | |
89 | case AREA_LV: | |
90 | seg2 = find_seg_by_le(seg_lv(seg, s), seg_le(seg, s)); | |
91 | if (seg2 && !list_segment_modules(mem, seg2, modules)) | |
92 | return_0; | |
93 | break; | |
94 | case AREA_PV: | |
95 | case AREA_UNASSIGNED: | |
96 | ; | |
97 | } | |
98 | } | |
99 | ||
100 | return 1; | |
101 | } | |
102 | ||
103 | int list_lv_modules(struct dm_pool *mem, const struct logical_volume *lv, | |
2c44337b | 104 | struct dm_list *modules) |
6c81ed26 AK |
105 | { |
106 | struct lv_segment *seg; | |
107 | ||
2c44337b | 108 | dm_list_iterate_items(seg, &lv->segments) |
6c81ed26 AK |
109 | if (!list_segment_modules(mem, seg, modules)) |
110 | return_0; | |
111 | ||
112 | return 1; | |
113 | } | |
114 | ||
199e490e AK |
115 | #ifndef DEVMAPPER_SUPPORT |
116 | void set_activation(int act) | |
117 | { | |
f2046e0a AK |
118 | static int warned = 0; |
119 | ||
120 | if (warned || !act) | |
121 | return; | |
122 | ||
123 | log_error("Compiled without libdevmapper support. " | |
124 | "Can't enable activation."); | |
125 | ||
126 | warned = 1; | |
199e490e AK |
127 | } |
128 | int activation(void) | |
129 | { | |
130 | return 0; | |
131 | } | |
132 | int library_version(char *version, size_t size) | |
133 | { | |
134 | return 0; | |
135 | } | |
136 | int driver_version(char *version, size_t size) | |
137 | { | |
138 | return 0; | |
139 | } | |
bbf83db1 AK |
140 | int target_version(const char *target_name, uint32_t *maj, |
141 | uint32_t *min, uint32_t *patchlevel) | |
142 | { | |
143 | return 0; | |
144 | } | |
ed82bfd2 AK |
145 | int target_present(struct cmd_context *cmd, const char *target_name, |
146 | int use_modprobe) | |
d1f4953a AK |
147 | { |
148 | return 0; | |
149 | } | |
2d6fcbf6 AK |
150 | int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, unsigned origin_only, |
151 | struct lvinfo *info, int with_open_count, int with_read_ahead) | |
199e490e AK |
152 | { |
153 | return 0; | |
154 | } | |
4bd9480d | 155 | int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, |
2d6fcbf6 | 156 | unsigned origin_only, |
a6b22cf3 | 157 | struct lvinfo *info, int with_open_count, int with_read_ahead) |
4bd9480d AK |
158 | { |
159 | return 0; | |
160 | } | |
8191fe4f | 161 | int lv_snapshot_percent(const struct logical_volume *lv, percent_t *percent) |
199e490e AK |
162 | { |
163 | return 0; | |
164 | } | |
aec21154 | 165 | int lv_mirror_percent(struct cmd_context *cmd, const struct logical_volume *lv, |
8191fe4f | 166 | int wait, percent_t *percent, uint32_t *event_nr) |
10b29b8d AK |
167 | { |
168 | return 0; | |
169 | } | |
199e490e AK |
170 | int lvs_in_vg_activated(struct volume_group *vg) |
171 | { | |
172 | return 0; | |
173 | } | |
ab8b85fb | 174 | int lvs_in_vg_opened(const struct volume_group *vg) |
199e490e AK |
175 | { |
176 | return 0; | |
177 | } | |
2d6fcbf6 | 178 | /****** |
658b5812 AK |
179 | int lv_suspend(struct cmd_context *cmd, const char *lvid_s) |
180 | { | |
181 | return 1; | |
182 | } | |
2d6fcbf6 | 183 | *******/ |
ab8b85fb | 184 | int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s, unsigned origin_only) |
199e490e AK |
185 | { |
186 | return 1; | |
187 | } | |
ab8b85fb | 188 | int lv_resume(struct cmd_context *cmd, const char *lvid_s, unsigned origin_only) |
658b5812 AK |
189 | { |
190 | return 1; | |
191 | } | |
ab8b85fb ZK |
192 | int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s, |
193 | unsigned origin_only, unsigned exclusive) | |
199e490e AK |
194 | { |
195 | return 1; | |
196 | } | |
197 | int lv_deactivate(struct cmd_context *cmd, const char *lvid_s) | |
198 | { | |
199 | return 1; | |
200 | } | |
658b5812 AK |
201 | int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, |
202 | int *activate_lv) | |
203 | { | |
204 | return 1; | |
205 | } | |
07d31831 | 206 | int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
199e490e AK |
207 | { |
208 | return 1; | |
209 | } | |
07d31831 | 210 | int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 AK |
211 | { |
212 | return 1; | |
213 | } | |
f7dd6d84 AK |
214 | int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv) |
215 | { | |
216 | return 1; | |
217 | } | |
0ce83a83 | 218 | int pv_uses_vg(struct physical_volume *pv, |
3e3d5d85 | 219 | struct volume_group *vg) |
352a99b9 AK |
220 | { |
221 | return 0; | |
222 | } | |
2293567c AK |
223 | void activation_release(void) |
224 | { | |
2293567c | 225 | } |
914c9723 AK |
226 | void activation_exit(void) |
227 | { | |
914c9723 | 228 | } |
ab8b85fb ZK |
229 | int lv_is_active(struct logical_volume *lv) |
230 | { | |
231 | return 0; | |
232 | } | |
233 | int lv_is_active_exclusive_locally(struct logical_volume *lv) | |
234 | { | |
235 | return 0; | |
236 | } | |
237 | int lv_is_active_exclusive_remotely(struct logical_volume *lv) | |
238 | { | |
239 | return 0; | |
240 | } | |
241 | int lv_check_transient(struct logical_volume *lv) | |
242 | { | |
243 | return 1; | |
244 | } | |
245 | int monitor_dev_for_events(struct cmd_context *cmd, struct logical_volume *lv, | |
81beded3 | 246 | struct lv_activate_opts *laopts, int monitor) |
ab8b85fb ZK |
247 | { |
248 | return 1; | |
249 | } | |
199e490e AK |
250 | #else /* DEVMAPPER_SUPPORT */ |
251 | ||
d1d9800e AK |
252 | static int _activation = 1; |
253 | ||
8ef2b021 | 254 | void set_activation(int act) |
d1d9800e | 255 | { |
8ef2b021 | 256 | if (act == _activation) |
d1d9800e AK |
257 | return; |
258 | ||
8ef2b021 | 259 | _activation = act; |
d1d9800e AK |
260 | if (_activation) |
261 | log_verbose("Activation enabled. Device-mapper kernel " | |
262 | "driver will be used."); | |
263 | else | |
e7ddf416 | 264 | log_warn("WARNING: Activation disabled. No device-mapper " |
bfe2b548 | 265 | "interaction will be attempted."); |
d1d9800e AK |
266 | } |
267 | ||
8ef2b021 | 268 | int activation(void) |
d1d9800e AK |
269 | { |
270 | return _activation; | |
271 | } | |
272 | ||
de17d760 AK |
273 | static int _passes_activation_filter(struct cmd_context *cmd, |
274 | struct logical_volume *lv) | |
275 | { | |
e59e2f7c PR |
276 | const struct dm_config_node *cn; |
277 | const struct dm_config_value *cv; | |
760d1fac | 278 | const char *str; |
de17d760 AK |
279 | char path[PATH_MAX]; |
280 | ||
2293567c | 281 | if (!(cn = find_config_tree_node(cmd, "activation/volume_list"))) { |
fefa4323 | 282 | log_verbose("activation/volume_list configuration setting " |
3122f963 PR |
283 | "not defined, checking only host tags for %s/%s", |
284 | lv->vg->name, lv->name); | |
fefa4323 | 285 | |
25579907 | 286 | /* If no host tags defined, activate */ |
2c44337b | 287 | if (dm_list_empty(&cmd->tags)) |
de17d760 AK |
288 | return 1; |
289 | ||
290 | /* If any host tag matches any LV or VG tag, activate */ | |
eb82bd05 AK |
291 | if (str_list_match_list(&cmd->tags, &lv->tags, NULL) || |
292 | str_list_match_list(&cmd->tags, &lv->vg->tags, NULL)) | |
de17d760 AK |
293 | return 1; |
294 | ||
fefa4323 PR |
295 | log_verbose("No host tag matches %s/%s", |
296 | lv->vg->name, lv->name); | |
297 | ||
de17d760 AK |
298 | /* Don't activate */ |
299 | return 0; | |
300 | } | |
f7e3a19f | 301 | else |
fefa4323 PR |
302 | log_verbose("activation/volume_list configuration setting " |
303 | "defined, checking the list to match %s/%s", | |
304 | lv->vg->name, lv->name); | |
305 | ||
f7e3a19f | 306 | for (cv = cn->v; cv; cv = cv->next) { |
e59e2f7c | 307 | if (cv->type != DM_CFG_STRING) { |
de17d760 AK |
308 | log_error("Ignoring invalid string in config file " |
309 | "activation/volume_list"); | |
310 | continue; | |
311 | } | |
312 | str = cv->v.str; | |
313 | if (!*str) { | |
314 | log_error("Ignoring empty string in config file " | |
315 | "activation/volume_list"); | |
316 | continue; | |
317 | } | |
318 | ||
f7e3a19f | 319 | |
de17d760 AK |
320 | /* Tag? */ |
321 | if (*str == '@') { | |
322 | str++; | |
323 | if (!*str) { | |
324 | log_error("Ignoring empty tag in config file " | |
325 | "activation/volume_list"); | |
326 | continue; | |
327 | } | |
328 | /* If any host tag matches any LV or VG tag, activate */ | |
329 | if (!strcmp(str, "*")) { | |
eb82bd05 | 330 | if (str_list_match_list(&cmd->tags, &lv->tags, NULL) |
de17d760 | 331 | || str_list_match_list(&cmd->tags, |
eb82bd05 | 332 | &lv->vg->tags, NULL)) |
de17d760 AK |
333 | return 1; |
334 | else | |
335 | continue; | |
336 | } | |
337 | /* If supplied tag matches LV or VG tag, activate */ | |
338 | if (str_list_match_item(&lv->tags, str) || | |
339 | str_list_match_item(&lv->vg->tags, str)) | |
340 | return 1; | |
341 | else | |
342 | continue; | |
343 | } | |
13835b5f | 344 | if (!strchr(str, '/')) { |
de17d760 AK |
345 | /* vgname supplied */ |
346 | if (!strcmp(str, lv->vg->name)) | |
347 | return 1; | |
348 | else | |
349 | continue; | |
350 | } | |
351 | /* vgname/lvname */ | |
0550c1b6 | 352 | if (dm_snprintf(path, sizeof(path), "%s/%s", lv->vg->name, |
de17d760 | 353 | lv->name) < 0) { |
0550c1b6 | 354 | log_error("dm_snprintf error from %s/%s", lv->vg->name, |
de17d760 AK |
355 | lv->name); |
356 | continue; | |
357 | } | |
358 | if (!strcmp(path, str)) | |
359 | return 1; | |
360 | } | |
361 | ||
fefa4323 PR |
362 | log_verbose("No item supplied in activation/volume_list configuration " |
363 | "setting matches %s/%s", lv->vg->name, lv->name); | |
364 | ||
de17d760 AK |
365 | return 0; |
366 | } | |
367 | ||
fae0c576 AK |
368 | int library_version(char *version, size_t size) |
369 | { | |
d1d9800e AK |
370 | if (!activation()) |
371 | return 0; | |
372 | ||
f894b4b1 | 373 | return dm_get_library_version(version, size); |
fae0c576 AK |
374 | } |
375 | ||
fae0c576 AK |
376 | int driver_version(char *version, size_t size) |
377 | { | |
d1d9800e AK |
378 | if (!activation()) |
379 | return 0; | |
380 | ||
fae0c576 | 381 | log_very_verbose("Getting driver version"); |
fae0c576 | 382 | |
f894b4b1 | 383 | return dm_driver_version(version, size); |
fae0c576 AK |
384 | } |
385 | ||
bbf83db1 AK |
386 | int target_version(const char *target_name, uint32_t *maj, |
387 | uint32_t *min, uint32_t *patchlevel) | |
d1f4953a AK |
388 | { |
389 | int r = 0; | |
390 | struct dm_task *dmt; | |
391 | struct dm_versions *target, *last_target; | |
392 | ||
d1f4953a | 393 | log_very_verbose("Getting target version for %s", target_name); |
5f4b2acf AK |
394 | if (!(dmt = dm_task_create(DM_DEVICE_LIST_VERSIONS))) |
395 | return_0; | |
d1f4953a | 396 | |
2243718f AK |
397 | if (activation_checks() && !dm_task_enable_checks(dmt)) |
398 | goto_out; | |
399 | ||
d1f4953a AK |
400 | if (!dm_task_run(dmt)) { |
401 | log_debug("Failed to get %s target version", target_name); | |
402 | /* Assume this was because LIST_VERSIONS isn't supported */ | |
403 | return 1; | |
404 | } | |
405 | ||
406 | target = dm_task_get_versions(dmt); | |
407 | ||
408 | do { | |
409 | last_target = target; | |
410 | ||
411 | if (!strcmp(target_name, target->name)) { | |
412 | r = 1; | |
bbf83db1 AK |
413 | *maj = target->version[0]; |
414 | *min = target->version[1]; | |
415 | *patchlevel = target->version[2]; | |
d1f4953a AK |
416 | goto out; |
417 | } | |
418 | ||
d40d166f | 419 | target = (struct dm_versions *)((char *) target + target->next); |
d1f4953a AK |
420 | } while (last_target != target); |
421 | ||
422 | out: | |
423 | dm_task_destroy(dmt); | |
424 | ||
425 | return r; | |
426 | } | |
427 | ||
ed82bfd2 | 428 | int module_present(struct cmd_context *cmd, const char *target_name) |
f894b4b1 | 429 | { |
5619c629 | 430 | int ret = 0; |
03b49fe1 | 431 | #ifdef MODPROBE_CMD |
f894b4b1 | 432 | char module[128]; |
c8669f6b | 433 | const char *argv[3]; |
5619c629 MB |
434 | |
435 | if (dm_snprintf(module, sizeof(module), "dm-%s", target_name) < 0) { | |
436 | log_error("module_present module name too long: %s", | |
437 | target_name); | |
438 | return 0; | |
439 | } | |
440 | ||
c8669f6b ZK |
441 | argv[0] = MODPROBE_CMD; |
442 | argv[1] = module; | |
443 | argv[2] = NULL; | |
444 | ||
b1b38215 | 445 | ret = exec_cmd(cmd, argv, NULL, 0); |
03b49fe1 | 446 | #endif |
5619c629 MB |
447 | return ret; |
448 | } | |
449 | ||
ed82bfd2 AK |
450 | int target_present(struct cmd_context *cmd, const char *target_name, |
451 | int use_modprobe) | |
5619c629 MB |
452 | { |
453 | uint32_t maj, min, patchlevel; | |
f894b4b1 AK |
454 | |
455 | if (!activation()) | |
456 | return 0; | |
457 | ||
458 | #ifdef MODPROBE_CMD | |
5f4b2acf | 459 | if (use_modprobe) { |
bbf83db1 | 460 | if (target_version(target_name, &maj, &min, &patchlevel)) |
5f4b2acf | 461 | return 1; |
f894b4b1 | 462 | |
ed82bfd2 | 463 | if (!module_present(cmd, target_name)) |
5f4b2acf | 464 | return_0; |
f894b4b1 AK |
465 | } |
466 | #endif | |
467 | ||
bbf83db1 | 468 | return target_version(target_name, &maj, &min, &patchlevel); |
f894b4b1 AK |
469 | } |
470 | ||
de6c9183 JT |
471 | /* |
472 | * Returns 1 if info structure populated, else 0 on failure. | |
473 | */ | |
2d6fcbf6 | 474 | int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, unsigned origin_only, |
ab9663f3 | 475 | struct lvinfo *info, int with_open_count, int with_read_ahead) |
37ed70b9 | 476 | { |
199e490e | 477 | struct dm_info dminfo; |
4a624ca0 | 478 | |
d1d9800e AK |
479 | if (!activation()) |
480 | return 0; | |
56cab8cc ZK |
481 | /* |
482 | * If open_count info is requested and we have to be sure our own udev | |
483 | * transactions are finished | |
484 | * For non-clustered locking type we are only interested for non-delete operation | |
485 | * in progress - as only those could lead to opened files | |
486 | */ | |
487 | if (with_open_count) { | |
488 | if (locking_is_clustered()) | |
489 | sync_local_dev_names(cmd); /* Wait to have udev in sync */ | |
f5f6dcbc | 490 | else if (fs_has_non_delete_ops()) |
56cab8cc ZK |
491 | fs_unlock(); /* For non clustered - wait if there are non-delete ops */ |
492 | } | |
d1d9800e | 493 | |
2d6fcbf6 | 494 | if (!dev_manager_info(lv->vg->cmd->mem, lv, origin_only ? "real" : NULL, with_open_count, |
ab9663f3 | 495 | with_read_ahead, &dminfo, &info->read_ahead)) |
5f4b2acf | 496 | return_0; |
4a624ca0 | 497 | |
199e490e AK |
498 | info->exists = dminfo.exists; |
499 | info->suspended = dminfo.suspended; | |
500 | info->open_count = dminfo.open_count; | |
501 | info->major = dminfo.major; | |
502 | info->minor = dminfo.minor; | |
503 | info->read_only = dminfo.read_only; | |
5f4b2acf AK |
504 | info->live_table = dminfo.live_table; |
505 | info->inactive_table = dminfo.inactive_table; | |
199e490e | 506 | |
f894b4b1 | 507 | return 1; |
de6c9183 | 508 | } |
a62ee8ad | 509 | |
4bd9480d | 510 | int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s, |
2d6fcbf6 | 511 | unsigned origin_only, |
a6b22cf3 | 512 | struct lvinfo *info, int with_open_count, int with_read_ahead) |
4bd9480d | 513 | { |
0548bcc2 | 514 | int r; |
4bd9480d AK |
515 | struct logical_volume *lv; |
516 | ||
7a593325 | 517 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
4bd9480d AK |
518 | return 0; |
519 | ||
2d6fcbf6 AK |
520 | if (!lv_is_origin(lv)) |
521 | origin_only = 0; | |
522 | ||
523 | r = lv_info(cmd, lv, origin_only, info, with_open_count, with_read_ahead); | |
077a6755 | 524 | release_vg(lv->vg); |
0548bcc2 MB |
525 | |
526 | return r; | |
4bd9480d AK |
527 | } |
528 | ||
125712be PR |
529 | int lv_check_not_in_use(struct cmd_context *cmd __attribute__((unused)), |
530 | struct logical_volume *lv, struct lvinfo *info) | |
531 | { | |
532 | if (!info->exists) | |
533 | return 1; | |
534 | ||
535 | /* If sysfs is not used, use open_count information only. */ | |
536 | if (!*dm_sysfs_dir()) | |
537 | return !info->open_count; | |
538 | ||
539 | if (dm_device_has_holders(info->major, info->minor)) { | |
540 | log_error("Logical volume %s/%s is used by another device.", | |
541 | lv->vg->name, lv->name); | |
542 | return 0; | |
543 | } | |
544 | ||
545 | if (dm_device_has_mounted_fs(info->major, info->minor)) { | |
546 | log_error("Logical volume %s/%s contains a filesystem in use.", | |
547 | lv->vg->name, lv->name); | |
548 | return 0; | |
549 | } | |
550 | ||
551 | return 1; | |
552 | } | |
553 | ||
d345bf2c PR |
554 | /* |
555 | * Returns 1 if percent set, else 0 on failure. | |
556 | */ | |
557 | int lv_check_transient(struct logical_volume *lv) | |
558 | { | |
559 | int r; | |
560 | struct dev_manager *dm; | |
561 | ||
562 | if (!activation()) | |
563 | return 0; | |
564 | ||
7df72b3c AK |
565 | log_debug("Checking transient status for LV %s/%s", lv->vg->name, lv->name); |
566 | ||
df390f17 | 567 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, 1))) |
d345bf2c PR |
568 | return_0; |
569 | ||
570 | if (!(r = dev_manager_transient(dm, lv))) | |
571 | stack; | |
572 | ||
573 | dev_manager_destroy(dm); | |
574 | ||
575 | return r; | |
576 | } | |
577 | ||
1951dba9 AL |
578 | /* |
579 | * Returns 1 if percent set, else 0 on failure. | |
580 | */ | |
8191fe4f | 581 | int lv_snapshot_percent(const struct logical_volume *lv, percent_t *percent) |
1951dba9 AL |
582 | { |
583 | int r; | |
584 | struct dev_manager *dm; | |
585 | ||
d1d9800e AK |
586 | if (!activation()) |
587 | return 0; | |
588 | ||
7df72b3c AK |
589 | log_debug("Checking snapshot percent for LV %s/%s", lv->vg->name, lv->name); |
590 | ||
df390f17 | 591 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, 1))) |
5f4b2acf | 592 | return_0; |
1951dba9 | 593 | |
8191fe4f | 594 | if (!(r = dev_manager_snapshot_percent(dm, lv, percent))) |
1951dba9 | 595 | stack; |
c826c0d1 | 596 | |
1951dba9 AL |
597 | dev_manager_destroy(dm); |
598 | ||
599 | return r; | |
600 | } | |
601 | ||
10b29b8d | 602 | /* FIXME Merge with snapshot_percent */ |
aec21154 | 603 | int lv_mirror_percent(struct cmd_context *cmd, const struct logical_volume *lv, |
8191fe4f | 604 | int wait, percent_t *percent, uint32_t *event_nr) |
10b29b8d AK |
605 | { |
606 | int r; | |
607 | struct dev_manager *dm; | |
b65b777d | 608 | struct lvinfo info; |
10b29b8d | 609 | |
876003dc AK |
610 | /* If mirrored LV is temporarily shrinked to 1 area (= linear), |
611 | * it should be considered in-sync. */ | |
2c44337b | 612 | if (dm_list_size(&lv->segments) == 1 && first_seg(lv)->area_count == 1) { |
8191fe4f | 613 | *percent = PERCENT_100; |
876003dc AK |
614 | return 1; |
615 | } | |
616 | ||
10b29b8d AK |
617 | if (!activation()) |
618 | return 0; | |
619 | ||
7df72b3c AK |
620 | log_debug("Checking mirror percent for LV %s/%s", lv->vg->name, lv->name); |
621 | ||
2d6fcbf6 | 622 | if (!lv_info(cmd, lv, 0, &info, 0, 0)) |
5f4b2acf | 623 | return_0; |
b65b777d AK |
624 | |
625 | if (!info.exists) | |
626 | return 0; | |
627 | ||
df390f17 | 628 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, 1))) |
5f4b2acf | 629 | return_0; |
10b29b8d | 630 | |
8191fe4f | 631 | if (!(r = dev_manager_mirror_percent(dm, lv, wait, percent, event_nr))) |
10b29b8d AK |
632 | stack; |
633 | ||
634 | dev_manager_destroy(dm); | |
635 | ||
636 | return r; | |
637 | } | |
638 | ||
4aebd52c JEB |
639 | int lv_raid_percent(const struct logical_volume *lv, percent_t *percent) |
640 | { | |
641 | return lv_mirror_percent(lv->vg->cmd, lv, 0, percent, NULL); | |
642 | } | |
643 | ||
ab9663f3 | 644 | static int _lv_active(struct cmd_context *cmd, struct logical_volume *lv) |
2ba80b43 | 645 | { |
199e490e | 646 | struct lvinfo info; |
2ba80b43 | 647 | |
2d6fcbf6 | 648 | if (!lv_info(cmd, lv, 0, &info, 0, 0)) { |
2ba80b43 | 649 | stack; |
de6c9183 | 650 | return -1; |
2ba80b43 JT |
651 | } |
652 | ||
de6c9183 | 653 | return info.exists; |
2ba80b43 JT |
654 | } |
655 | ||
f894b4b1 | 656 | static int _lv_open_count(struct cmd_context *cmd, struct logical_volume *lv) |
5986ec94 | 657 | { |
199e490e | 658 | struct lvinfo info; |
5986ec94 | 659 | |
2d6fcbf6 | 660 | if (!lv_info(cmd, lv, 0, &info, 1, 0)) { |
5986ec94 | 661 | stack; |
de6c9183 | 662 | return -1; |
5986ec94 JT |
663 | } |
664 | ||
de6c9183 | 665 | return info.open_count; |
5986ec94 JT |
666 | } |
667 | ||
81beded3 | 668 | static int _lv_activate_lv(struct logical_volume *lv, struct lv_activate_opts *laopts) |
b1713d28 | 669 | { |
6d52fb46 | 670 | int r; |
de6c9183 | 671 | struct dev_manager *dm; |
b1713d28 | 672 | |
df390f17 | 673 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, (lv->status & PVMOVE) ? 0 : 1))) |
5f4b2acf | 674 | return_0; |
ae2bb665 | 675 | |
81beded3 | 676 | if (!(r = dev_manager_activate(dm, lv, laopts))) |
6d52fb46 | 677 | stack; |
ae2bb665 | 678 | |
de6c9183 | 679 | dev_manager_destroy(dm); |
ae2bb665 | 680 | return r; |
b1713d28 | 681 | } |
a381c45a | 682 | |
81beded3 ZK |
683 | static int _lv_preload(struct logical_volume *lv, struct lv_activate_opts *laopts, |
684 | int *flush_required) | |
0a5e4a14 | 685 | { |
de6c9183 JT |
686 | int r; |
687 | struct dev_manager *dm; | |
37ed70b9 | 688 | |
df390f17 | 689 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, (lv->status & PVMOVE) ? 0 : 1))) |
5f4b2acf AK |
690 | return_0; |
691 | ||
81beded3 | 692 | if (!(r = dev_manager_preload(dm, lv, laopts, flush_required))) |
6d52fb46 | 693 | stack; |
5f4b2acf AK |
694 | |
695 | dev_manager_destroy(dm); | |
696 | return r; | |
697 | } | |
698 | ||
699 | static int _lv_deactivate(struct logical_volume *lv) | |
700 | { | |
701 | int r; | |
702 | struct dev_manager *dm; | |
703 | ||
df390f17 | 704 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, 1))) |
5f4b2acf | 705 | return_0; |
37ed70b9 | 706 | |
de6c9183 | 707 | if (!(r = dev_manager_deactivate(dm, lv))) |
37ed70b9 | 708 | stack; |
37ed70b9 | 709 | |
de6c9183 JT |
710 | dev_manager_destroy(dm); |
711 | return r; | |
37ed70b9 JT |
712 | } |
713 | ||
81beded3 ZK |
714 | static int _lv_suspend_lv(struct logical_volume *lv, struct lv_activate_opts *laopts, |
715 | int lockfs, int flush_required) | |
4a624ca0 | 716 | { |
20c5fcf7 AK |
717 | int r; |
718 | struct dev_manager *dm; | |
c2d72fd4 | 719 | |
df390f17 AK |
720 | /* |
721 | * When we are asked to manipulate (normally suspend/resume) the PVMOVE | |
722 | * device directly, we don't want to touch the devices that use it. | |
723 | */ | |
724 | if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name, (lv->status & PVMOVE) ? 0 : 1))) | |
5f4b2acf | 725 | return_0; |
0a5e4a14 | 726 | |
81beded3 | 727 | if (!(r = dev_manager_suspend(dm, lv, laopts, lockfs, flush_required))) |
37ed70b9 | 728 | stack; |
0a5e4a14 | 729 | |
20c5fcf7 AK |
730 | dev_manager_destroy(dm); |
731 | return r; | |
6d52fb46 | 732 | } |
4a624ca0 | 733 | |
8c013da4 | 734 | /* |
f75c11ed | 735 | * These two functions return the number of visible LVs in the state, |
7df72b3c | 736 | * or -1 on error. FIXME Check this. |
8c013da4 | 737 | */ |
65752052 | 738 | int lvs_in_vg_activated(struct volume_group *vg) |
f047219b | 739 | { |
60f13f01 | 740 | struct lv_list *lvl; |
94b8220f | 741 | int count = 0; |
37ed70b9 | 742 | |
d1d9800e AK |
743 | if (!activation()) |
744 | return 0; | |
745 | ||
7df72b3c | 746 | dm_list_iterate_items(lvl, &vg->lvs) |
59d8429c | 747 | if (lv_is_visible(lvl->lv)) |
ab9663f3 | 748 | count += (_lv_active(vg->cmd, lvl->lv) == 1); |
7df72b3c AK |
749 | |
750 | log_debug("Counted %d active LVs in VG %s", count, vg->name); | |
37ed70b9 JT |
751 | |
752 | return count; | |
f047219b | 753 | } |
2ba80b43 | 754 | |
08c9ff43 | 755 | int lvs_in_vg_opened(const struct volume_group *vg) |
2ba80b43 | 756 | { |
08c9ff43 | 757 | const struct lv_list *lvl; |
94b8220f | 758 | int count = 0; |
2ba80b43 | 759 | |
d1d9800e AK |
760 | if (!activation()) |
761 | return 0; | |
762 | ||
7df72b3c | 763 | dm_list_iterate_items(lvl, &vg->lvs) |
afd9ba98 | 764 | if (lv_is_visible(lvl->lv)) |
f894b4b1 | 765 | count += (_lv_open_count(vg->cmd, lvl->lv) > 0); |
7df72b3c AK |
766 | |
767 | log_debug("Counted %d open LVs in VG %s", count, vg->name); | |
2ba80b43 JT |
768 | |
769 | return count; | |
770 | } | |
413cc918 | 771 | |
5ca6698f | 772 | /* |
27ff8813 JEB |
773 | * _lv_is_active |
774 | * @lv: logical volume being queried | |
775 | * @locally: set if active locally (when provided) | |
776 | * @exclusive: set if active exclusively (when provided) | |
777 | * | |
5ca6698f | 778 | * Determine whether an LV is active locally or in a cluster. |
27ff8813 JEB |
779 | * In addition to the return code which indicates whether or |
780 | * not the LV is active somewhere, two other values are set | |
781 | * to yield more information about the status of the activation: | |
782 | * return locally exclusively status | |
783 | * ====== ======= =========== ====== | |
784 | * 0 0 0 not active | |
785 | * 1 0 0 active remotely | |
786 | * 1 0 1 exclusive remotely | |
787 | * 1 1 0 active locally and possibly remotely | |
788 | * 1 1 1 exclusive locally (or local && !cluster) | |
789 | * The VG lock must be held to call this function. | |
790 | * | |
791 | * Returns: 0 or 1 | |
5ca6698f | 792 | */ |
27ff8813 JEB |
793 | static int _lv_is_active(struct logical_volume *lv, |
794 | int *locally, int *exclusive) | |
5ca6698f | 795 | { |
27ff8813 JEB |
796 | int r, l, e; /* remote, local, and exclusive */ |
797 | ||
798 | r = l = e = 0; | |
6ac30c94 | 799 | |
ab9663f3 | 800 | if (_lv_active(lv->vg->cmd, lv)) |
27ff8813 | 801 | l = 1; |
5ca6698f | 802 | |
27ff8813 JEB |
803 | if (!vg_is_clustered(lv->vg)) { |
804 | e = 1; /* exclusive by definition */ | |
805 | goto out; | |
806 | } | |
807 | ||
808 | /* Active locally, and the caller doesn't care about exclusive */ | |
809 | if (l && !exclusive) | |
810 | goto out; | |
5ca6698f | 811 | |
27ff8813 JEB |
812 | if ((r = remote_lock_held(lv->lvid.s, &e)) >= 0) |
813 | goto out; | |
6ac30c94 MB |
814 | |
815 | /* | |
27ff8813 JEB |
816 | * If lock query is not supported (due to interfacing with old |
817 | * code), then we cannot evaluate exclusivity properly. | |
818 | * | |
819 | * Old users of this function will never be affected by this, | |
820 | * since they are only concerned about active vs. not active. | |
821 | * New users of this function who specifically ask for 'exclusive' | |
822 | * will be given an error message. | |
6ac30c94 | 823 | */ |
27ff8813 JEB |
824 | if (l) { |
825 | if (exclusive) | |
826 | log_error("Unable to determine exclusivity of %s", | |
827 | lv->name); | |
828 | goto out; | |
829 | } | |
830 | ||
f3d8974d | 831 | /* FIXME: Is this fallback alright? */ |
6ac30c94 | 832 | if (activate_lv_excl(lv->vg->cmd, lv)) { |
56b3d204 MS |
833 | if (!deactivate_lv(lv->vg->cmd, lv)) |
834 | stack; | |
f3d8974d | 835 | /* FIXME: locally & exclusive are undefined. */ |
25a2e7b8 | 836 | return 0; |
6ac30c94 | 837 | } |
f3d8974d | 838 | /* FIXME: Check exclusive value here. */ |
27ff8813 JEB |
839 | out: |
840 | if (locally) | |
841 | *locally = l; | |
842 | if (exclusive) | |
843 | *exclusive = e; | |
844 | ||
845 | log_very_verbose("%s/%s is %sactive%s%s", | |
846 | lv->vg->name, lv->name, | |
847 | (r || l) ? "" : "not ", | |
848 | (exclusive && e) ? " exclusive" : "", | |
849 | e ? (l ? " locally" : " remotely") : ""); | |
850 | ||
851 | return r || l; | |
852 | } | |
853 | ||
854 | int lv_is_active(struct logical_volume *lv) | |
855 | { | |
856 | return _lv_is_active(lv, NULL, NULL); | |
857 | } | |
858 | ||
9e277b9e | 859 | int lv_is_active_but_not_locally(struct logical_volume *lv) |
27ff8813 JEB |
860 | { |
861 | int l; | |
9e277b9e | 862 | return _lv_is_active(lv, &l, NULL) && !l; |
27ff8813 | 863 | } |
27ff8813 JEB |
864 | |
865 | int lv_is_active_exclusive_locally(struct logical_volume *lv) | |
866 | { | |
867 | int l, e; | |
7df72b3c | 868 | |
27ff8813 JEB |
869 | return _lv_is_active(lv, &l, &e) && l && e; |
870 | } | |
871 | ||
872 | int lv_is_active_exclusive_remotely(struct logical_volume *lv) | |
873 | { | |
874 | int l, e; | |
7df72b3c | 875 | |
27ff8813 | 876 | return _lv_is_active(lv, &l, &e) && !l && e; |
5ca6698f DW |
877 | } |
878 | ||
d1e8046f AK |
879 | #ifdef DMEVENTD |
880 | static struct dm_event_handler *_create_dm_event_handler(struct cmd_context *cmd, const char *dmuuid, const char *dso, | |
881 | const int timeout, enum dm_event_mask mask) | |
882 | { | |
883 | struct dm_event_handler *dmevh; | |
884 | ||
885 | if (!(dmevh = dm_event_handler_create())) | |
886 | return_NULL; | |
887 | ||
888 | if (dm_event_handler_set_dmeventd_path(dmevh, find_config_tree_str(cmd, "dmeventd/executable", NULL))) | |
889 | goto_bad; | |
890 | ||
891 | if (dm_event_handler_set_dso(dmevh, dso)) | |
892 | goto_bad; | |
893 | ||
894 | if (dm_event_handler_set_uuid(dmevh, dmuuid)) | |
895 | goto_bad; | |
896 | ||
897 | dm_event_handler_set_timeout(dmevh, timeout); | |
898 | dm_event_handler_set_event_mask(dmevh, mask); | |
899 | ||
900 | return dmevh; | |
901 | ||
902 | bad: | |
903 | dm_event_handler_destroy(dmevh); | |
904 | return NULL; | |
905 | } | |
906 | ||
907 | char *get_monitor_dso_path(struct cmd_context *cmd, const char *libpath) | |
908 | { | |
909 | char *path; | |
910 | ||
911 | if (!(path = dm_pool_alloc(cmd->mem, PATH_MAX))) { | |
912 | log_error("Failed to allocate dmeventd library path."); | |
913 | return NULL; | |
914 | } | |
915 | ||
916 | get_shared_library_path(cmd, libpath, path, PATH_MAX); | |
917 | ||
918 | return path; | |
919 | } | |
920 | ||
f92b4f94 AK |
921 | int target_registered_with_dmeventd(struct cmd_context *cmd, const char *dso, |
922 | struct logical_volume *lv, int *pending) | |
d1e8046f AK |
923 | { |
924 | char *uuid; | |
925 | enum dm_event_mask evmask = 0; | |
926 | struct dm_event_handler *dmevh; | |
927 | ||
928 | *pending = 0; | |
929 | ||
930 | if (!dso) | |
931 | return_0; | |
932 | ||
f92b4f94 AK |
933 | /* We always monitor the "real" device, never the "snapshot-origin" itself. */ |
934 | if (!(uuid = build_dm_uuid(cmd->mem, lv->lvid.s, lv_is_origin(lv) ? "real" : NULL))) | |
d1e8046f AK |
935 | return_0; |
936 | ||
937 | if (!(dmevh = _create_dm_event_handler(cmd, uuid, dso, 0, DM_EVENT_ALL_ERRORS))) | |
938 | return_0; | |
939 | ||
940 | if (dm_event_get_registered_device(dmevh, 0)) { | |
941 | dm_event_handler_destroy(dmevh); | |
942 | return 0; | |
943 | } | |
944 | ||
945 | evmask = dm_event_handler_get_event_mask(dmevh); | |
946 | if (evmask & DM_EVENT_REGISTRATION_PENDING) { | |
947 | *pending = 1; | |
948 | evmask &= ~DM_EVENT_REGISTRATION_PENDING; | |
949 | } | |
950 | ||
951 | dm_event_handler_destroy(dmevh); | |
952 | ||
953 | return evmask; | |
954 | } | |
955 | ||
f92b4f94 | 956 | int target_register_events(struct cmd_context *cmd, const char *dso, struct logical_volume *lv, |
d1e8046f AK |
957 | int evmask __attribute__((unused)), int set, int timeout) |
958 | { | |
959 | char *uuid; | |
960 | struct dm_event_handler *dmevh; | |
961 | int r; | |
962 | ||
963 | if (!dso) | |
964 | return_0; | |
965 | ||
f92b4f94 AK |
966 | /* We always monitor the "real" device, never the "snapshot-origin" itself. */ |
967 | if (!(uuid = build_dm_uuid(cmd->mem, lv->lvid.s, lv_is_origin(lv) ? "real" : NULL))) | |
d1e8046f AK |
968 | return_0; |
969 | ||
970 | if (!(dmevh = _create_dm_event_handler(cmd, uuid, dso, timeout, | |
971 | DM_EVENT_ALL_ERRORS | (timeout ? DM_EVENT_TIMEOUT : 0)))) | |
972 | return_0; | |
973 | ||
974 | r = set ? dm_event_register_handler(dmevh) : dm_event_unregister_handler(dmevh); | |
975 | ||
976 | dm_event_handler_destroy(dmevh); | |
977 | ||
978 | if (!r) | |
979 | return_0; | |
980 | ||
981 | log_info("%s %s for events", set ? "Monitored" : "Unmonitored", uuid); | |
982 | ||
983 | return 1; | |
984 | } | |
985 | ||
986 | #endif | |
987 | ||
3e3d5d85 | 988 | /* |
8a37910d AK |
989 | * Returns 0 if an attempt to (un)monitor the device failed. |
990 | * Returns 1 otherwise. | |
3e3d5d85 | 991 | */ |
2d6fcbf6 | 992 | int monitor_dev_for_events(struct cmd_context *cmd, struct logical_volume *lv, |
81beded3 | 993 | const struct lv_activate_opts *laopts, int monitor) |
15d91f5a | 994 | { |
ed09d7e3 | 995 | #ifdef DMEVENTD |
8a37910d AK |
996 | int i, pending = 0, monitored; |
997 | int r = 1; | |
2c44337b | 998 | struct dm_list *tmp, *snh, *snht; |
15d91f5a | 999 | struct lv_segment *seg; |
7a369d37 | 1000 | struct lv_segment *log_seg; |
24f4552b | 1001 | int (*monitor_fn) (struct lv_segment *s, int e); |
4e9083db | 1002 | uint32_t s; |
81beded3 ZK |
1003 | static const struct lv_activate_opts zlaopts = { 0 }; |
1004 | ||
1005 | if (!laopts) | |
1006 | laopts = &zlaopts; | |
15d91f5a | 1007 | |
20db8ffc AK |
1008 | /* skip dmeventd code altogether */ |
1009 | if (dmeventd_monitor_mode() == DMEVENTD_MONITOR_IGNORE) | |
1010 | return 1; | |
1011 | ||
8a37910d AK |
1012 | /* |
1013 | * Nothing to do if dmeventd configured not to be used. | |
1014 | */ | |
1015 | if (monitor && !dmeventd_monitor_mode()) | |
3e3d5d85 AK |
1016 | return 1; |
1017 | ||
67961c7c PR |
1018 | /* |
1019 | * In case of a snapshot device, we monitor lv->snapshot->lv, | |
1020 | * not the actual LV itself. | |
1021 | */ | |
c6168a14 ZK |
1022 | if (lv_is_cow(lv) && (laopts->no_merging || !lv_is_merging_cow(lv))) |
1023 | return monitor_dev_for_events(cmd, lv->snapshot->lv, NULL, monitor); | |
67961c7c PR |
1024 | |
1025 | /* | |
1026 | * In case this LV is a snapshot origin, we instead monitor | |
f92b4f94 AK |
1027 | * each of its respective snapshots. The origin itself may |
1028 | * also need to be monitored if it is a mirror, for example. | |
67961c7c | 1029 | */ |
81beded3 | 1030 | if (!laopts->origin_only && lv_is_origin(lv)) |
2c44337b AK |
1031 | dm_list_iterate_safe(snh, snht, &lv->snapshot_segs) |
1032 | if (!monitor_dev_for_events(cmd, dm_list_struct_base(snh, | |
81beded3 | 1033 | struct lv_segment, origin_list)->cow, NULL, monitor)) |
0c06de63 | 1034 | r = 0; |
67961c7c | 1035 | |
7a369d37 JEB |
1036 | /* |
1037 | * If the volume is mirrored and its log is also mirrored, monitor | |
1038 | * the log volume as well. | |
1039 | */ | |
1040 | if ((seg = first_seg(lv)) != NULL && seg->log_lv != NULL && | |
1041 | (log_seg = first_seg(seg->log_lv)) != NULL && | |
1042 | seg_is_mirrored(log_seg)) | |
81beded3 | 1043 | if (!monitor_dev_for_events(cmd, seg->log_lv, NULL, monitor)) |
7a369d37 JEB |
1044 | r = 0; |
1045 | ||
2c44337b AK |
1046 | dm_list_iterate(tmp, &lv->segments) { |
1047 | seg = dm_list_item(tmp, struct lv_segment); | |
15d91f5a | 1048 | |
4e9083db AK |
1049 | /* Recurse for AREA_LV */ |
1050 | for (s = 0; s < seg->area_count; s++) { | |
1051 | if (seg_type(seg, s) != AREA_LV) | |
1052 | continue; | |
81beded3 | 1053 | if (!monitor_dev_for_events(cmd, seg_lv(seg, s), NULL, |
4e9083db AK |
1054 | monitor)) { |
1055 | log_error("Failed to %smonitor %s", | |
1056 | monitor ? "" : "un", | |
1057 | seg_lv(seg, s)->name); | |
1058 | r = 0; | |
1059 | } | |
1060 | } | |
1061 | ||
8ef6eb30 AK |
1062 | if (!seg_monitored(seg) || (seg->status & PVMOVE)) |
1063 | continue; | |
8a37910d AK |
1064 | |
1065 | monitor_fn = NULL; | |
ed09d7e3 | 1066 | |
8ef6eb30 | 1067 | /* Check monitoring status */ |
8a37910d AK |
1068 | if (seg->segtype->ops->target_monitored) |
1069 | monitored = seg->segtype->ops->target_monitored(seg, &pending); | |
8ef6eb30 AK |
1070 | else |
1071 | continue; /* segtype doesn't support registration */ | |
1072 | ||
1073 | /* | |
1074 | * FIXME: We should really try again if pending | |
1075 | */ | |
8a37910d | 1076 | monitored = (pending) ? 0 : monitored; |
8ef6eb30 | 1077 | |
8a37910d AK |
1078 | if (monitor) { |
1079 | if (monitored) | |
8ef6eb30 | 1080 | log_verbose("%s/%s already monitored.", lv->vg->name, lv->name); |
8a37910d AK |
1081 | else if (seg->segtype->ops->target_monitor_events) |
1082 | monitor_fn = seg->segtype->ops->target_monitor_events; | |
8ef6eb30 | 1083 | } else { |
8a37910d | 1084 | if (!monitored) |
8ef6eb30 | 1085 | log_verbose("%s/%s already not monitored.", lv->vg->name, lv->name); |
8a37910d AK |
1086 | else if (seg->segtype->ops->target_unmonitor_events) |
1087 | monitor_fn = seg->segtype->ops->target_unmonitor_events; | |
8ef6eb30 | 1088 | } |
15d91f5a | 1089 | |
8ef6eb30 | 1090 | /* Do [un]monitor */ |
8a37910d | 1091 | if (!monitor_fn) |
3e3d5d85 | 1092 | continue; |
e24e7130 | 1093 | |
85a80e05 AK |
1094 | log_verbose("%sonitoring %s/%s%s", monitor ? "M" : "Not m", lv->vg->name, lv->name, |
1095 | test_mode() ? " [Test mode: skipping this]" : ""); | |
1096 | ||
1097 | /* FIXME Test mode should really continue a bit further. */ | |
1098 | if (test_mode()) | |
1099 | continue; | |
8a37910d | 1100 | |
3e3d5d85 | 1101 | /* FIXME specify events */ |
57fc4cc0 | 1102 | if (!monitor_fn(seg, 0)) { |
8a37910d AK |
1103 | log_error("%s/%s: %s segment monitoring function failed.", |
1104 | lv->vg->name, lv->name, seg->segtype->name); | |
1105 | return 0; | |
e24e7130 | 1106 | } |
3e3d5d85 | 1107 | |
8ef6eb30 AK |
1108 | /* Check [un]monitor results */ |
1109 | /* Try a couple times if pending, but not forever... */ | |
1110 | for (i = 0; i < 10; i++) { | |
1111 | pending = 0; | |
8a37910d | 1112 | monitored = seg->segtype->ops->target_monitored(seg, &pending); |
8ef6eb30 | 1113 | if (pending || |
8a37910d AK |
1114 | (!monitored && monitor) || |
1115 | (monitored && !monitor)) | |
1116 | log_very_verbose("%s/%s %smonitoring still pending: waiting...", | |
1117 | lv->vg->name, lv->name, monitor ? "" : "un"); | |
8ef6eb30 AK |
1118 | else |
1119 | break; | |
1120 | sleep(1); | |
1121 | } | |
1122 | ||
85a80e05 AK |
1123 | if (r) |
1124 | r = (monitored && monitor) || (!monitored && !monitor); | |
15d91f5a | 1125 | } |
e6493477 | 1126 | |
3e3d5d85 AK |
1127 | return r; |
1128 | #else | |
15d91f5a | 1129 | return 1; |
3e3d5d85 | 1130 | #endif |
15d91f5a | 1131 | } |
15d91f5a | 1132 | |
0f2a4ca2 AK |
1133 | struct detached_lv_data { |
1134 | struct logical_volume *lv_pre; | |
1135 | struct lv_activate_opts *laopts; | |
1136 | int *flush_required; | |
1137 | }; | |
1138 | ||
1139 | static int _preload_detached_lv(struct cmd_context *cmd, struct logical_volume *lv, void *data) | |
1140 | { | |
1141 | struct detached_lv_data *detached = data; | |
1142 | struct lv_list *lvl_pre; | |
1143 | ||
1144 | if ((lvl_pre = find_lv_in_vg(detached->lv_pre->vg, lv->name))) { | |
ee840ff1 | 1145 | if (lv_is_visible(lvl_pre->lv) && lv_is_active(lv) && (!lv_is_cow(lv) || !lv_is_cow(lvl_pre->lv)) && |
0f2a4ca2 AK |
1146 | !_lv_preload(lvl_pre->lv, detached->laopts, detached->flush_required)) |
1147 | return_0; | |
1148 | } | |
1149 | ||
1150 | return 1; | |
1151 | } | |
1152 | ||
658b5812 | 1153 | static int _lv_suspend(struct cmd_context *cmd, const char *lvid_s, |
81beded3 | 1154 | struct lv_activate_opts *laopts, int error_if_not_suspended) |
413cc918 | 1155 | { |
df390f17 AK |
1156 | struct logical_volume *lv = NULL, *lv_pre = NULL, *pvmove_lv = NULL; |
1157 | struct lv_list *lvl_pre; | |
1158 | struct seg_list *sl; | |
ee840ff1 | 1159 | struct lv_segment *snap_seg; |
199e490e | 1160 | struct lvinfo info; |
eb91c4ee | 1161 | int r = 0, lockfs = 0, flush_required = 0; |
0f2a4ca2 | 1162 | struct detached_lv_data detached; |
413cc918 | 1163 | |
d1d9800e AK |
1164 | if (!activation()) |
1165 | return 1; | |
1166 | ||
8b888354 | 1167 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 1168 | goto_out; |
8b888354 | 1169 | |
7a593325 | 1170 | /* Use precommitted metadata if present */ |
8b888354 | 1171 | if (!(lv_pre = lv_from_lvid(cmd, lvid_s, 1))) |
095bbca6 | 1172 | goto_out; |
413cc918 | 1173 | |
2d6fcbf6 AK |
1174 | /* Ignore origin_only unless LV is origin in both old and new metadata */ |
1175 | if (!lv_is_origin(lv) || !lv_is_origin(lv_pre)) | |
81beded3 | 1176 | laopts->origin_only = 0; |
2d6fcbf6 | 1177 | |
20c5fcf7 | 1178 | if (test_mode()) { |
81beded3 | 1179 | _skip("Suspending %s%s.", lv->name, laopts->origin_only ? " origin without snapshots" : ""); |
095bbca6 MB |
1180 | r = 1; |
1181 | goto out; | |
20c5fcf7 AK |
1182 | } |
1183 | ||
81beded3 | 1184 | if (!lv_info(cmd, lv, laopts->origin_only, &info, 0, 0)) |
095bbca6 | 1185 | goto_out; |
41967a02 | 1186 | |
095bbca6 | 1187 | if (!info.exists || info.suspended) { |
63ae0d14 MB |
1188 | if (!error_if_not_suspended) { |
1189 | r = 1; | |
1190 | if (info.suspended) | |
df390f17 | 1191 | critical_section_inc(cmd, "already suspended"); |
63ae0d14 | 1192 | } |
095bbca6 MB |
1193 | goto out; |
1194 | } | |
914c9723 | 1195 | |
9249fb12 ZK |
1196 | if (!lv_read_replicator_vgs(lv)) |
1197 | goto_out; | |
1198 | ||
c1fdeec9 MB |
1199 | lv_calculate_readahead(lv, NULL); |
1200 | ||
df390f17 | 1201 | /* |
3a8eb387 | 1202 | * Preload devices for the LV. |
df390f17 AK |
1203 | * If the PVMOVE LV is being removed, it's only present in the old |
1204 | * metadata and not the new, so we must explicitly add the new | |
1205 | * tables for all the changed LVs here, as the relationships | |
1206 | * are not found by walking the new metadata. | |
1207 | */ | |
3a8eb387 AK |
1208 | if (!(lv_pre->status & LOCKED) && |
1209 | (lv->status & LOCKED) && | |
1210 | (pvmove_lv = find_pvmove_lv_in_lv(lv))) { | |
1211 | /* Preload all the LVs above the PVMOVE LV */ | |
1212 | dm_list_iterate_items(sl, &pvmove_lv->segs_using_this_lv) { | |
1213 | if (!(lvl_pre = find_lv_in_vg(lv_pre->vg, sl->seg->lv->name))) { | |
ee840ff1 | 1214 | log_error(INTERNAL_ERROR "LV %s missing from preload metadata", sl->seg->lv->name); |
df390f17 AK |
1215 | goto out; |
1216 | } | |
81beded3 | 1217 | if (!_lv_preload(lvl_pre->lv, laopts, &flush_required)) |
df390f17 | 1218 | goto_out; |
3a8eb387 AK |
1219 | } |
1220 | /* Now preload the PVMOVE LV itself */ | |
1221 | if (!(lvl_pre = find_lv_in_vg(lv_pre->vg, pvmove_lv->name))) { | |
ee840ff1 | 1222 | log_error(INTERNAL_ERROR "LV %s missing from preload metadata", pvmove_lv->name); |
3a8eb387 AK |
1223 | goto out; |
1224 | } | |
1225 | if (!_lv_preload(lvl_pre->lv, laopts, &flush_required)) | |
1226 | goto_out; | |
1227 | } else { | |
1228 | if (!_lv_preload(lv_pre, laopts, &flush_required)) | |
1229 | /* FIXME Revert preloading */ | |
1230 | goto_out; | |
0f2a4ca2 | 1231 | |
3a8eb387 AK |
1232 | /* |
1233 | * Search for existing LVs that have become detached and preload them. | |
1234 | */ | |
1235 | detached.lv_pre = lv_pre; | |
1236 | detached.laopts = laopts; | |
1237 | detached.flush_required = &flush_required; | |
0f2a4ca2 | 1238 | |
3a8eb387 AK |
1239 | if (!for_each_sub_lv(cmd, lv, &_preload_detached_lv, &detached)) |
1240 | goto_out; | |
ee840ff1 AK |
1241 | |
1242 | /* | |
1243 | * Preload any snapshots that are being removed. | |
1244 | */ | |
1245 | if (!laopts->origin_only && lv_is_origin(lv)) { | |
1246 | dm_list_iterate_items_gen(snap_seg, &lv->snapshot_segs, origin_list) { | |
a73e9a6c AK |
1247 | if (!(lvl_pre = find_lv_in_vg_by_lvid(lv_pre->vg, &snap_seg->cow->lvid))) { |
1248 | log_error(INTERNAL_ERROR "LV %s (%s) missing from preload metadata", | |
1249 | snap_seg->cow->name, snap_seg->cow->lvid.id[1].uuid); | |
ee840ff1 AK |
1250 | goto out; |
1251 | } | |
1252 | if (!lv_is_cow(lvl_pre->lv) && | |
1253 | !_lv_preload(lvl_pre->lv, laopts, &flush_required)) | |
1254 | goto_out; | |
1255 | } | |
1256 | } | |
5f4b2acf AK |
1257 | } |
1258 | ||
81beded3 | 1259 | if (!monitor_dev_for_events(cmd, lv, laopts, 0)) |
e24e7130 | 1260 | /* FIXME Consider aborting here */ |
ed09d7e3 AK |
1261 | stack; |
1262 | ||
df390f17 AK |
1263 | critical_section_inc(cmd, "suspending"); |
1264 | if (pvmove_lv) | |
1265 | critical_section_inc(cmd, "suspending pvmove LV"); | |
9cd3426d | 1266 | |
81beded3 | 1267 | if (!laopts->origin_only && |
2d6fcbf6 | 1268 | (lv_is_origin(lv_pre) || lv_is_cow(lv_pre))) |
9cd3426d AK |
1269 | lockfs = 1; |
1270 | ||
df390f17 AK |
1271 | /* |
1272 | * Suspending an LV directly above a PVMOVE LV also | |
1273 | * suspends other LVs using that same PVMOVE LV. | |
1274 | * FIXME Remove this and delay the 'clear node' until | |
1275 | * after the code knows whether there's a different | |
1276 | * inactive table to load or not instead so lv_suspend | |
1277 | * can be called separately for each LV safely. | |
1278 | */ | |
1279 | if ((lv_pre->vg->status & PRECOMMITTED) && | |
1280 | (lv_pre->status & LOCKED) && find_pvmove_lv_in_lv(lv_pre)) { | |
81beded3 | 1281 | if (!_lv_suspend_lv(lv_pre, laopts, lockfs, flush_required)) { |
df390f17 AK |
1282 | critical_section_dec(cmd, "failed precommitted suspend"); |
1283 | if (pvmove_lv) | |
1284 | critical_section_dec(cmd, "failed precommitted suspend (pvmove)"); | |
1285 | goto_out; | |
1286 | } | |
1287 | } else { | |
1288 | /* Normal suspend */ | |
81beded3 | 1289 | if (!_lv_suspend_lv(lv, laopts, lockfs, flush_required)) { |
df390f17 AK |
1290 | critical_section_dec(cmd, "failed suspend"); |
1291 | if (pvmove_lv) | |
1292 | critical_section_dec(cmd, "failed suspend (pvmove)"); | |
1293 | goto_out; | |
1294 | } | |
914c9723 | 1295 | } |
8c013da4 | 1296 | |
095bbca6 MB |
1297 | r = 1; |
1298 | out: | |
1299 | if (lv_pre) | |
077a6755 | 1300 | release_vg(lv_pre->vg); |
9249fb12 ZK |
1301 | if (lv) { |
1302 | lv_release_replicator_vgs(lv); | |
077a6755 | 1303 | release_vg(lv->vg); |
9249fb12 | 1304 | } |
095bbca6 MB |
1305 | |
1306 | return r; | |
413cc918 AK |
1307 | } |
1308 | ||
658b5812 | 1309 | /* Returns success if the device is not active */ |
2d6fcbf6 | 1310 | int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s, unsigned origin_only) |
658b5812 | 1311 | { |
81beded3 ZK |
1312 | struct lv_activate_opts laopts = { .origin_only = origin_only }; |
1313 | ||
1314 | return _lv_suspend(cmd, lvid_s, &laopts, 0); | |
658b5812 AK |
1315 | } |
1316 | ||
2d6fcbf6 AK |
1317 | /* No longer used */ |
1318 | /*********** | |
658b5812 AK |
1319 | int lv_suspend(struct cmd_context *cmd, const char *lvid_s) |
1320 | { | |
1321 | return _lv_suspend(cmd, lvid_s, 1); | |
1322 | } | |
2d6fcbf6 | 1323 | ***********/ |
658b5812 | 1324 | |
c054e7cc JEB |
1325 | /* |
1326 | * _lv_resume | |
1327 | * @cmd | |
1328 | * @lvid_s | |
1329 | * @origin_only | |
1330 | * @exclusive: This parameter only has an affect in cluster-context. | |
1331 | * It forces local target type to be used (instead of | |
1332 | * cluster-aware type). | |
1333 | * @error_if_not_active | |
1334 | */ | |
658b5812 | 1335 | static int _lv_resume(struct cmd_context *cmd, const char *lvid_s, |
81beded3 | 1336 | struct lv_activate_opts *laopts, int error_if_not_active) |
413cc918 AK |
1337 | { |
1338 | struct logical_volume *lv; | |
199e490e | 1339 | struct lvinfo info; |
095bbca6 | 1340 | int r = 0; |
413cc918 | 1341 | |
d1d9800e AK |
1342 | if (!activation()) |
1343 | return 1; | |
1344 | ||
7a593325 | 1345 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
75b37a11 | 1346 | goto_out; |
413cc918 | 1347 | |
2d6fcbf6 | 1348 | if (!lv_is_origin(lv)) |
81beded3 | 1349 | laopts->origin_only = 0; |
2d6fcbf6 | 1350 | |
20c5fcf7 | 1351 | if (test_mode()) { |
81beded3 | 1352 | _skip("Resuming %s%s.", lv->name, laopts->origin_only ? " without snapshots" : ""); |
095bbca6 MB |
1353 | r = 1; |
1354 | goto out; | |
20c5fcf7 AK |
1355 | } |
1356 | ||
7df72b3c AK |
1357 | log_debug("Resuming LV %s/%s%s%s.", lv->vg->name, lv->name, |
1358 | error_if_not_active ? "" : " if active", | |
81beded3 | 1359 | laopts->origin_only ? " without snapshots" : ""); |
7df72b3c | 1360 | |
81beded3 | 1361 | if (!lv_info(cmd, lv, laopts->origin_only, &info, 0, 0)) |
095bbca6 | 1362 | goto_out; |
41967a02 | 1363 | |
095bbca6 | 1364 | if (!info.exists || !info.suspended) { |
4ec2ae86 ZK |
1365 | if (error_if_not_active) |
1366 | goto_out; | |
1367 | r = 1; | |
df390f17 AK |
1368 | if (!info.suspended) |
1369 | critical_section_dec(cmd, "already resumed"); | |
4ec2ae86 | 1370 | goto out; |
095bbca6 | 1371 | } |
914c9723 | 1372 | |
81beded3 | 1373 | if (!_lv_activate_lv(lv, laopts)) |
75b37a11 | 1374 | goto_out; |
914c9723 | 1375 | |
df390f17 | 1376 | critical_section_dec(cmd, "resumed"); |
413cc918 | 1377 | |
81beded3 | 1378 | if (!monitor_dev_for_events(cmd, lv, laopts, 1)) |
ed09d7e3 | 1379 | stack; |
15d91f5a | 1380 | |
095bbca6 MB |
1381 | r = 1; |
1382 | out: | |
1383 | if (lv) | |
077a6755 | 1384 | release_vg(lv->vg); |
095bbca6 MB |
1385 | |
1386 | return r; | |
413cc918 AK |
1387 | } |
1388 | ||
658b5812 | 1389 | /* Returns success if the device is not active */ |
c054e7cc JEB |
1390 | int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s, |
1391 | unsigned origin_only, unsigned exclusive) | |
658b5812 | 1392 | { |
81beded3 ZK |
1393 | struct lv_activate_opts laopts = { |
1394 | .origin_only = origin_only, | |
1395 | /* | |
1396 | * When targets are activated exclusively in a cluster, the | |
1397 | * non-clustered target should be used. This only happens | |
1398 | * if exclusive is set. | |
1399 | */ | |
1400 | .exclusive = exclusive | |
1401 | }; | |
1402 | ||
1403 | return _lv_resume(cmd, lvid_s, &laopts, 0); | |
658b5812 AK |
1404 | } |
1405 | ||
2d6fcbf6 | 1406 | int lv_resume(struct cmd_context *cmd, const char *lvid_s, unsigned origin_only) |
658b5812 | 1407 | { |
81beded3 ZK |
1408 | struct lv_activate_opts laopts = { .origin_only = origin_only, }; |
1409 | ||
1410 | return _lv_resume(cmd, lvid_s, &laopts, 1); | |
658b5812 AK |
1411 | } |
1412 | ||
64a95010 AK |
1413 | static int _lv_has_open_snapshots(struct logical_volume *lv) |
1414 | { | |
1415 | struct lv_segment *snap_seg; | |
1416 | struct lvinfo info; | |
1417 | int r = 0; | |
1418 | ||
1419 | dm_list_iterate_items_gen(snap_seg, &lv->snapshot_segs, origin_list) { | |
2d6fcbf6 | 1420 | if (!lv_info(lv->vg->cmd, snap_seg->cow, 0, &info, 1, 0)) { |
64a95010 AK |
1421 | r = 1; |
1422 | continue; | |
1423 | } | |
1424 | ||
1425 | if (info.exists && info.open_count) { | |
1426 | log_error("LV %s/%s has open snapshot %s: " | |
1427 | "not deactivating", lv->vg->name, lv->name, | |
1428 | snap_seg->cow->name); | |
1429 | r = 1; | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | return r; | |
1434 | } | |
1435 | ||
be326a2f | 1436 | int lv_deactivate(struct cmd_context *cmd, const char *lvid_s) |
f4cbeaf0 AK |
1437 | { |
1438 | struct logical_volume *lv; | |
199e490e | 1439 | struct lvinfo info; |
095bbca6 | 1440 | int r = 0; |
f4cbeaf0 | 1441 | |
d1d9800e AK |
1442 | if (!activation()) |
1443 | return 1; | |
1444 | ||
7a593325 | 1445 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 1446 | goto out; |
f4cbeaf0 | 1447 | |
20c5fcf7 AK |
1448 | if (test_mode()) { |
1449 | _skip("Deactivating '%s'.", lv->name); | |
095bbca6 MB |
1450 | r = 1; |
1451 | goto out; | |
20c5fcf7 AK |
1452 | } |
1453 | ||
7df72b3c AK |
1454 | log_debug("Deactivating %s/%s.", lv->vg->name, lv->name); |
1455 | ||
2d6fcbf6 | 1456 | if (!lv_info(cmd, lv, 0, &info, 1, 0)) |
095bbca6 | 1457 | goto_out; |
41967a02 | 1458 | |
095bbca6 MB |
1459 | if (!info.exists) { |
1460 | r = 1; | |
1461 | goto out; | |
1462 | } | |
f4cbeaf0 | 1463 | |
64a95010 | 1464 | if (lv_is_visible(lv)) { |
125712be PR |
1465 | if (!lv_check_not_in_use(cmd, lv, &info)) |
1466 | goto_out; | |
1467 | ||
64a95010 AK |
1468 | if (lv_is_origin(lv) && _lv_has_open_snapshots(lv)) |
1469 | goto_out; | |
0cf96f33 AK |
1470 | } |
1471 | ||
9249fb12 ZK |
1472 | if (!lv_read_replicator_vgs(lv)) |
1473 | goto_out; | |
1474 | ||
c1fdeec9 MB |
1475 | lv_calculate_readahead(lv, NULL); |
1476 | ||
81beded3 | 1477 | if (!monitor_dev_for_events(cmd, lv, NULL, 0)) |
ed09d7e3 | 1478 | stack; |
15d91f5a | 1479 | |
df390f17 | 1480 | critical_section_inc(cmd, "deactivating"); |
914c9723 | 1481 | r = _lv_deactivate(lv); |
df390f17 | 1482 | critical_section_dec(cmd, "deactivated"); |
914c9723 | 1483 | |
401a40d9 | 1484 | if (!lv_info(cmd, lv, 0, &info, 0, 0) || info.exists) |
89a6cdfd | 1485 | r = 0; |
095bbca6 | 1486 | out: |
9249fb12 ZK |
1487 | if (lv) { |
1488 | lv_release_replicator_vgs(lv); | |
077a6755 | 1489 | release_vg(lv->vg); |
9249fb12 | 1490 | } |
095bbca6 | 1491 | |
914c9723 | 1492 | return r; |
f4cbeaf0 AK |
1493 | } |
1494 | ||
658b5812 AK |
1495 | /* Test if LV passes filter */ |
1496 | int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s, | |
1497 | int *activate_lv) | |
1498 | { | |
1499 | struct logical_volume *lv; | |
095bbca6 | 1500 | int r = 0; |
658b5812 | 1501 | |
095bbca6 MB |
1502 | if (!activation()) { |
1503 | *activate_lv = 1; | |
1504 | return 1; | |
1505 | } | |
658b5812 | 1506 | |
424dd43e | 1507 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 1508 | goto out; |
658b5812 AK |
1509 | |
1510 | if (!_passes_activation_filter(cmd, lv)) { | |
f7e3a19f PR |
1511 | log_verbose("Not activating %s/%s since it does not pass " |
1512 | "activation filter.", lv->vg->name, lv->name); | |
658b5812 | 1513 | *activate_lv = 0; |
095bbca6 MB |
1514 | } else |
1515 | *activate_lv = 1; | |
1516 | r = 1; | |
1517 | out: | |
1518 | if (lv) | |
077a6755 | 1519 | release_vg(lv->vg); |
658b5812 | 1520 | |
095bbca6 | 1521 | return r; |
658b5812 AK |
1522 | } |
1523 | ||
07d31831 | 1524 | static int _lv_activate(struct cmd_context *cmd, const char *lvid_s, |
81beded3 | 1525 | struct lv_activate_opts *laopts, int filter) |
f4cbeaf0 AK |
1526 | { |
1527 | struct logical_volume *lv; | |
199e490e | 1528 | struct lvinfo info; |
095bbca6 | 1529 | int r = 0; |
f4cbeaf0 | 1530 | |
d1d9800e AK |
1531 | if (!activation()) |
1532 | return 1; | |
1533 | ||
424dd43e | 1534 | if (!(lv = lv_from_lvid(cmd, lvid_s, 0))) |
095bbca6 | 1535 | goto out; |
f4cbeaf0 | 1536 | |
658b5812 | 1537 | if (filter && !_passes_activation_filter(cmd, lv)) { |
f7e3a19f PR |
1538 | log_error("Not activating %s/%s since it does not pass " |
1539 | "activation filter.", lv->vg->name, lv->name); | |
095bbca6 | 1540 | goto out; |
de17d760 AK |
1541 | } |
1542 | ||
cda35408 | 1543 | if ((!lv->vg->cmd->partial_activation) && (lv->status & PARTIAL_LV)) { |
8c5bcdab AK |
1544 | log_error("Refusing activation of partial LV %s. Use --partial to override.", |
1545 | lv->name); | |
095bbca6 | 1546 | goto_out; |
8c5bcdab AK |
1547 | } |
1548 | ||
b4048242 PR |
1549 | if (lv_has_unknown_segments(lv)) { |
1550 | log_error("Refusing activation of LV %s containing " | |
1551 | "an unrecognised segment.", lv->name); | |
1552 | goto_out; | |
1553 | } | |
1554 | ||
20c5fcf7 AK |
1555 | if (test_mode()) { |
1556 | _skip("Activating '%s'.", lv->name); | |
095bbca6 MB |
1557 | r = 1; |
1558 | goto out; | |
20c5fcf7 AK |
1559 | } |
1560 | ||
81beded3 ZK |
1561 | log_debug("Activating %s/%s%s.", lv->vg->name, lv->name, |
1562 | laopts->exclusive ? " exclusively" : ""); | |
7df72b3c | 1563 | |
2d6fcbf6 | 1564 | if (!lv_info(cmd, lv, 0, &info, 0, 0)) |
095bbca6 | 1565 | goto_out; |
8c013da4 | 1566 | |
095bbca6 MB |
1567 | if (info.exists && !info.suspended && info.live_table) { |
1568 | r = 1; | |
1569 | goto out; | |
1570 | } | |
f4cbeaf0 | 1571 | |
9249fb12 ZK |
1572 | if (!lv_read_replicator_vgs(lv)) |
1573 | goto_out; | |
1574 | ||
c1fdeec9 MB |
1575 | lv_calculate_readahead(lv, NULL); |
1576 | ||
df390f17 | 1577 | critical_section_inc(cmd, "activating"); |
81beded3 | 1578 | if (!(r = _lv_activate_lv(lv, laopts))) |
75b37a11 | 1579 | stack; |
df390f17 | 1580 | critical_section_dec(cmd, "activated"); |
914c9723 | 1581 | |
81beded3 | 1582 | if (r && !monitor_dev_for_events(cmd, lv, laopts, 1)) |
ed09d7e3 | 1583 | stack; |
15d91f5a | 1584 | |
095bbca6 | 1585 | out: |
9249fb12 ZK |
1586 | if (lv) { |
1587 | lv_release_replicator_vgs(lv); | |
077a6755 | 1588 | release_vg(lv->vg); |
9249fb12 | 1589 | } |
095bbca6 | 1590 | |
914c9723 | 1591 | return r; |
f4cbeaf0 | 1592 | } |
199e490e | 1593 | |
658b5812 | 1594 | /* Activate LV */ |
07d31831 | 1595 | int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 | 1596 | { |
81beded3 ZK |
1597 | struct lv_activate_opts laopts = { .exclusive = exclusive }; |
1598 | ||
1599 | if (!_lv_activate(cmd, lvid_s, &laopts, 0)) | |
75b37a11 AK |
1600 | return_0; |
1601 | ||
1602 | return 1; | |
658b5812 AK |
1603 | } |
1604 | ||
1605 | /* Activate LV only if it passes filter */ | |
07d31831 | 1606 | int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive) |
658b5812 | 1607 | { |
81beded3 ZK |
1608 | struct lv_activate_opts laopts = { .exclusive = exclusive }; |
1609 | ||
1610 | if (!_lv_activate(cmd, lvid_s, &laopts, 1)) | |
75b37a11 AK |
1611 | return_0; |
1612 | ||
1613 | return 1; | |
658b5812 AK |
1614 | } |
1615 | ||
f7dd6d84 AK |
1616 | int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv) |
1617 | { | |
f7dd6d84 AK |
1618 | int r = 1; |
1619 | ||
8b076648 | 1620 | if (!lv) { |
2262b320 | 1621 | r = dm_mknodes(NULL); |
8b076648 AK |
1622 | fs_unlock(); |
1623 | return r; | |
1624 | } | |
1625 | ||
ab9663f3 MB |
1626 | if (!activation()) |
1627 | return 1; | |
f7dd6d84 | 1628 | |
ab9663f3 | 1629 | r = dev_manager_mknodes(lv); |
f7dd6d84 AK |
1630 | |
1631 | fs_unlock(); | |
1632 | ||
1633 | return r; | |
1634 | } | |
1635 | ||
352a99b9 AK |
1636 | /* |
1637 | * Does PV use VG somewhere in its construction? | |
1638 | * Returns 1 on failure. | |
1639 | */ | |
898e6f8e | 1640 | int pv_uses_vg(struct physical_volume *pv, |
3e3d5d85 | 1641 | struct volume_group *vg) |
352a99b9 | 1642 | { |
352a99b9 AK |
1643 | if (!activation()) |
1644 | return 0; | |
1645 | ||
1646 | if (!dm_is_dm_major(MAJOR(pv->dev->dev))) | |
1647 | return 0; | |
1648 | ||
898e6f8e | 1649 | return dev_manager_device_uses_vg(pv->dev, vg); |
352a99b9 AK |
1650 | } |
1651 | ||
2293567c AK |
1652 | void activation_release(void) |
1653 | { | |
1654 | dev_manager_release(); | |
1655 | } | |
1656 | ||
914c9723 AK |
1657 | void activation_exit(void) |
1658 | { | |
1659 | dev_manager_exit(); | |
1660 | } | |
199e490e | 1661 | #endif |