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Commit | Line | Data |
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64c4757e | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
64c4757e | 3 | * |
e736b623 | 4 | * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de> |
64c4757e NB |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Author: Neil Brown | |
e736b623 | 22 | * Email: <neilb@suse.de> |
64c4757e NB |
23 | */ |
24 | ||
9a9dab36 | 25 | #include "mdadm.h" |
41a3b72a | 26 | #include <ctype.h> |
64c4757e | 27 | |
624920bb NB |
28 | static int name_matches(char *found, char *required, char *homehost) |
29 | { | |
30 | /* See if the name found matches the required name, possibly | |
31 | * prefixed with 'homehost' | |
32 | */ | |
33 | char fnd[33]; | |
34 | ||
35 | strncpy(fnd, found, 32); | |
36 | fnd[32] = 0; | |
37 | if (strcmp(found, required)==0) | |
38 | return 1; | |
39 | if (homehost) { | |
40 | int l = strlen(homehost); | |
41 | if (l < 32 && fnd[l] == ':' && | |
42 | strcmp(fnd+l+1, required)==0) | |
43 | return 1; | |
44 | } | |
45 | return 0; | |
46 | } | |
47 | ||
9008ed1c | 48 | static int is_member_busy(char *metadata_version) |
2de8884f DW |
49 | { |
50 | /* check if the given member array is active */ | |
51 | struct mdstat_ent *mdstat = mdstat_read(1, 0); | |
52 | struct mdstat_ent *ent; | |
53 | int busy = 0; | |
54 | ||
55 | for (ent = mdstat; ent; ent = ent->next) { | |
56 | if (ent->metadata_version == NULL) | |
57 | continue; | |
58 | if (strncmp(ent->metadata_version, "external:", 9) != 0) | |
59 | continue; | |
60 | if (!is_subarray(&ent->metadata_version[9])) | |
61 | continue; | |
62 | /* Skip first char - it can be '/' or '-' */ | |
63 | if (strcmp(&ent->metadata_version[10], metadata_version+1) == 0) { | |
64 | busy = 1; | |
65 | break; | |
66 | } | |
67 | } | |
68 | free_mdstat(mdstat); | |
69 | ||
70 | return busy; | |
71 | } | |
72 | ||
fa56eddb | 73 | static int ident_matches(struct mddev_ident *ident, |
08fb91a3 N |
74 | struct mdinfo *content, |
75 | struct supertype *tst, | |
76 | char *homehost, | |
77 | char *update, char *devname) | |
78 | { | |
79 | ||
80 | if (ident->uuid_set && (!update || strcmp(update, "uuid")!= 0) && | |
cbeeb0e5 AC |
81 | same_uuid(content->uuid, ident->uuid, tst->ss->swapuuid)==0 && |
82 | memcmp(content->uuid, uuid_zero, sizeof(int[4])) != 0) { | |
08fb91a3 N |
83 | if (devname) |
84 | fprintf(stderr, Name ": %s has wrong uuid.\n", | |
85 | devname); | |
86 | return 0; | |
87 | } | |
88 | if (ident->name[0] && (!update || strcmp(update, "name")!= 0) && | |
89 | name_matches(content->name, ident->name, homehost)==0) { | |
90 | if (devname) | |
91 | fprintf(stderr, Name ": %s has wrong name.\n", | |
92 | devname); | |
93 | return 0; | |
94 | } | |
95 | if (ident->super_minor != UnSet && | |
96 | ident->super_minor != content->array.md_minor) { | |
97 | if (devname) | |
98 | fprintf(stderr, Name ": %s has wrong super-minor.\n", | |
99 | devname); | |
100 | return 0; | |
101 | } | |
102 | if (ident->level != UnSet && | |
103 | ident->level != content->array.level) { | |
104 | if (devname) | |
105 | fprintf(stderr, Name ": %s has wrong raid level.\n", | |
106 | devname); | |
107 | return 0; | |
108 | } | |
109 | if (ident->raid_disks != UnSet && | |
110 | ident->raid_disks!= content->array.raid_disks) { | |
111 | if (devname) | |
112 | fprintf(stderr, Name ": %s requires wrong number of drives.\n", | |
113 | devname); | |
114 | return 0; | |
115 | } | |
805d30b2 N |
116 | if (ident->member && ident->member[0]) { |
117 | /* content->text_version must match */ | |
118 | char *s = strchr(content->text_version+1, '/'); | |
119 | if (s == NULL) { | |
120 | if (devname) | |
121 | fprintf(stderr, Name ": %s is not a container and one is required.\n", | |
122 | devname); | |
123 | return 0; | |
124 | } else if (strcmp(ident->member, s+1) != 0) { | |
125 | if (devname) | |
126 | fprintf(stderr, Name ": skipping wrong member %s is %s\n", | |
127 | content->text_version, devname); | |
128 | return 0; | |
129 | } | |
130 | } | |
08fb91a3 N |
131 | return 1; |
132 | } | |
133 | ||
134 | ||
7f91af49 | 135 | int Assemble(struct supertype *st, char *mddev, |
fa56eddb | 136 | struct mddev_ident *ident, |
87f26d14 N |
137 | struct mddev_dev *devlist, |
138 | char *backup_file, int invalid_backup, | |
64c4757e | 139 | int readonly, int runstop, |
0ac91628 | 140 | char *update, char *homehost, int require_homehost, |
64c4757e NB |
141 | int verbose, int force) |
142 | { | |
143 | /* | |
52826846 NB |
144 | * The task of Assemble is to find a collection of |
145 | * devices that should (according to their superblocks) | |
146 | * form an array, and to give this collection to the MD driver. | |
147 | * In Linux-2.4 and later, this involves submitting a | |
64c4757e NB |
148 | * SET_ARRAY_INFO ioctl with no arg - to prepare |
149 | * the array - and then submit a number of | |
150 | * ADD_NEW_DISK ioctls to add disks into | |
151 | * the array. Finally RUN_ARRAY might | |
152 | * be submitted to start the array. | |
153 | * | |
154 | * Much of the work of Assemble is in finding and/or | |
155 | * checking the disks to make sure they look right. | |
156 | * | |
4b1ac34b | 157 | * If mddev is not set, then scan must be set and we |
64c4757e NB |
158 | * read through the config file for dev+uuid mapping |
159 | * We recurse, setting mddev, for each device that | |
160 | * - isn't running | |
4b1ac34b | 161 | * - has a valid uuid (or any uuid if !uuidset) |
64c4757e NB |
162 | * |
163 | * If mddev is set, we try to determine state of md. | |
164 | * check version - must be at least 0.90.0 | |
165 | * check kernel version. must be at least 2.4. | |
166 | * If not, we can possibly fall back on START_ARRAY | |
167 | * Try to GET_ARRAY_INFO. | |
168 | * If possible, give up | |
169 | * If not, try to STOP_ARRAY just to make sure | |
170 | * | |
171 | * If !uuidset and scan, look in conf-file for uuid | |
172 | * If not found, give up | |
b8a8ccf9 | 173 | * If !devlist and scan and uuidset, get list of devs from conf-file |
64c4757e NB |
174 | * |
175 | * For each device: | |
176 | * Check superblock - discard if bad | |
177 | * Check uuid (set if we don't have one) - discard if no match | |
5787fa49 | 178 | * Check superblock similarity if we have a superblock - discard if different |
4b1ac34b | 179 | * Record events, devicenum |
64c4757e | 180 | * This should give us a list of devices for the array |
4b1ac34b | 181 | * We should collect the most recent event number |
64c4757e NB |
182 | * |
183 | * Count disks with recent enough event count | |
184 | * While force && !enough disks | |
185 | * Choose newest rejected disks, update event count | |
186 | * mark clean and rewrite superblock | |
187 | * If recent kernel: | |
188 | * SET_ARRAY_INFO | |
189 | * foreach device with recent events : ADD_NEW_DISK | |
190 | * if runstop == 1 || "enough" disks and runstop==0 -> RUN_ARRAY | |
191 | * If old kernel: | |
192 | * Check the device numbers in superblock are right | |
193 | * update superblock if any changes | |
194 | * START_ARRAY | |
195 | * | |
196 | */ | |
c30e5369 N |
197 | int mdfd; |
198 | int clean; | |
f05641cf N |
199 | int auto_assem = (mddev == NULL && !ident->uuid_set && |
200 | ident->super_minor == UnSet && ident->name[0] == 0 | |
aa7c284c | 201 | && (ident->container == NULL || ident->member == NULL)); |
64c4757e | 202 | int old_linux = 0; |
c30e5369 | 203 | int vers = vers; /* Keep gcc quite - it really is initialised */ |
64c4757e NB |
204 | struct { |
205 | char *devname; | |
213ee40b NB |
206 | int uptodate; /* set once we decide that this device is as |
207 | * recent as everything else in the array. | |
208 | */ | |
209 | struct mdinfo i; | |
5787fa49 | 210 | } *devices; |
02e7c5b7 | 211 | char *devmap; |
56eedc1a | 212 | int *best = NULL; /* indexed by raid_disk */ |
f21e18ca | 213 | int bestcnt = 0; |
98c6faba | 214 | int devcnt = 0; |
1ff98339 | 215 | unsigned int okcnt, sparecnt, rebuilding_cnt; |
98c6faba | 216 | unsigned int req_cnt; |
f21e18ca | 217 | int i; |
64c4757e | 218 | int most_recent = 0; |
cd29a5c8 | 219 | int chosen_drive; |
52826846 | 220 | int change = 0; |
cd29a5c8 | 221 | int inargv = 0; |
52437b4f | 222 | int report_missmatch; |
bf4fb153 | 223 | int bitmap_done; |
7f91af49 N |
224 | int start_partial_ok = (runstop >= 0) && |
225 | (force || devlist==NULL || auto_assem); | |
98c6faba | 226 | unsigned int num_devs; |
a655e550 | 227 | struct mddev_dev *tmpdev; |
4b1ac34b | 228 | struct mdinfo info; |
98dbd966 | 229 | struct mdinfo *content = NULL; |
265e0f17 | 230 | char *avail; |
308e1801 | 231 | int nextspare = 0; |
197e3eb6 | 232 | char *name = NULL; |
69207ff6 | 233 | int trustworthy; |
a04d5763 | 234 | char chosen_name[1024]; |
cbeeb0e5 | 235 | struct domainlist *domains = NULL; |
8a46fe84 | 236 | |
682c7051 | 237 | if (get_linux_version() < 2004000) |
64c4757e NB |
238 | old_linux = 1; |
239 | ||
64c4757e | 240 | /* |
52826846 NB |
241 | * If any subdevs are listed, then any that don't |
242 | * match ident are discarded. Remainder must all match and | |
243 | * become the array. | |
244 | * If no subdevs, then we scan all devices in the config file, but | |
245 | * there must be something in the identity | |
64c4757e | 246 | */ |
64c4757e | 247 | |
cd29a5c8 | 248 | if (!devlist && |
52826846 | 249 | ident->uuid_set == 0 && |
f21e18ca | 250 | (ident->super_minor < 0 || ident->super_minor == UnSet) && |
e0fe762a N |
251 | ident->name[0] == 0 && |
252 | (ident->container == NULL || ident->member == NULL) && | |
52826846 NB |
253 | ident->devices == NULL) { |
254 | fprintf(stderr, Name ": No identity information available for %s - cannot assemble.\n", | |
8a46fe84 | 255 | mddev ? mddev : "further assembly"); |
52826846 | 256 | return 1; |
64c4757e | 257 | } |
71d60c48 | 258 | |
cd29a5c8 | 259 | if (devlist == NULL) |
8aec876d | 260 | devlist = conf_get_devs(); |
7f91af49 | 261 | else if (mddev) |
da6b5ca9 | 262 | inargv = 1; |
64c4757e | 263 | |
52437b4f | 264 | report_missmatch = ((inargv && verbose >= 0) || verbose > 0); |
60e1bc1a | 265 | try_again: |
c30e5369 N |
266 | /* We come back here when doing auto-assembly and attempting some |
267 | * set of devices failed. Those are now marked as ->used==2 and | |
268 | * we ignore them and try again | |
269 | */ | |
60e1bc1a | 270 | |
5787fa49 NB |
271 | tmpdev = devlist; num_devs = 0; |
272 | while (tmpdev) { | |
da6b5ca9 NB |
273 | if (tmpdev->used) |
274 | tmpdev->used = 2; | |
275 | else | |
276 | num_devs++; | |
5787fa49 NB |
277 | tmpdev = tmpdev->next; |
278 | } | |
5787fa49 | 279 | |
82d9eba6 | 280 | if (!st && ident->st) st = ident->st; |
64c4757e | 281 | |
dab6685f | 282 | if (verbose>0) |
82b27616 | 283 | fprintf(stderr, Name ": looking for devices for %s\n", |
8a46fe84 | 284 | mddev ? mddev : "further assembly"); |
82b27616 | 285 | |
811e6cbe NB |
286 | /* first walk the list of devices to find a consistent set |
287 | * that match the criterea, if that is possible. | |
c30e5369 | 288 | * We flag the ones we like with 'used'. |
811e6cbe NB |
289 | */ |
290 | for (tmpdev = devlist; | |
291 | tmpdev; | |
5083d66b | 292 | tmpdev = tmpdev ? tmpdev->next : NULL) { |
811e6cbe | 293 | char *devname = tmpdev->devname; |
64c4757e NB |
294 | int dfd; |
295 | struct stat stb; | |
3da92f27 | 296 | struct supertype *tst = dup_super(st); |
4e8d9f0a | 297 | struct dev_policy *pol = NULL; |
5083d66b | 298 | int found_container = 0; |
52826846 | 299 | |
da6b5ca9 NB |
300 | if (tmpdev->used > 1) continue; |
301 | ||
52826846 | 302 | if (ident->devices && |
56eedc1a | 303 | !match_oneof(ident->devices, devname)) { |
52437b4f | 304 | if (report_missmatch) |
56eedc1a | 305 | fprintf(stderr, Name ": %s is not one of %s\n", devname, ident->devices); |
52826846 | 306 | continue; |
56eedc1a | 307 | } |
4b1ac34b | 308 | |
8b0dabea | 309 | dfd = dev_open(devname, O_RDONLY|O_EXCL); |
64c4757e | 310 | if (dfd < 0) { |
52437b4f | 311 | if (report_missmatch) |
682c7051 | 312 | fprintf(stderr, Name ": cannot open device %s: %s\n", |
64c4757e | 313 | devname, strerror(errno)); |
da6b5ca9 | 314 | tmpdev->used = 2; |
52826846 NB |
315 | } else if (fstat(dfd, &stb)< 0) { |
316 | /* Impossible! */ | |
317 | fprintf(stderr, Name ": fstat failed for %s: %s\n", | |
318 | devname, strerror(errno)); | |
da6b5ca9 | 319 | tmpdev->used = 2; |
cd29a5c8 NB |
320 | } else if ((stb.st_mode & S_IFMT) != S_IFBLK) { |
321 | fprintf(stderr, Name ": %s is not a block device.\n", | |
52826846 | 322 | devname); |
da6b5ca9 | 323 | tmpdev->used = 2; |
5083d66b N |
324 | } else if (must_be_container(dfd)) { |
325 | if (st) { | |
326 | /* already found some components, this cannot | |
327 | * be another one. | |
328 | */ | |
329 | if (report_missmatch) | |
330 | fprintf(stderr, Name ": %s is a container, but we are looking for components\n", | |
331 | devname); | |
332 | tmpdev->used = 2; | |
333 | } if (!tst && (tst = super_by_fd(dfd, NULL)) == NULL) { | |
334 | if (report_missmatch) | |
335 | fprintf(stderr, Name ": not a recognisable container: %s\n", | |
336 | devname); | |
337 | tmpdev->used = 2; | |
417f346e HCP |
338 | } else if (!tst->ss->load_container |
339 | || tst->ss->load_container(tst, dfd, NULL)) { | |
5083d66b N |
340 | if (report_missmatch) |
341 | fprintf(stderr, Name ": no correct container type: %s\n", | |
342 | devname); | |
343 | tmpdev->used = 2; | |
344 | } else if (auto_assem && | |
345 | !conf_test_metadata(tst->ss->name, (pol = devnum_policy(stb.st_rdev)), | |
346 | tst->ss->match_home(tst, homehost) == 1)) { | |
347 | if (report_missmatch) | |
348 | fprintf(stderr, Name ": %s has metadata type %s for which " | |
349 | "auto-assembly is disabled\n", | |
350 | devname, tst->ss->name); | |
351 | tmpdev->used = 2; | |
352 | } else | |
353 | found_container = 1; | |
52826846 | 354 | } else { |
5083d66b N |
355 | if (!tst && (tst = guess_super(dfd)) == NULL) { |
356 | if (report_missmatch) | |
357 | fprintf(stderr, Name ": no recogniseable superblock on %s\n", | |
358 | devname); | |
359 | tmpdev->used = 2; | |
360 | } else if (tst->ss->load_super(tst,dfd, NULL)) { | |
361 | if (report_missmatch) | |
362 | fprintf(stderr, Name ": no RAID superblock on %s\n", | |
363 | devname); | |
364 | tmpdev->used = 2; | |
365 | } else if (tst->ss->compare_super == NULL) { | |
366 | if (report_missmatch) | |
367 | fprintf(stderr, Name ": Cannot assemble %s metadata on %s\n", | |
368 | tst->ss->name, devname); | |
369 | tmpdev->used = 2; | |
370 | } else if (auto_assem && st == NULL && | |
371 | !conf_test_metadata(tst->ss->name, (pol = devnum_policy(stb.st_rdev)), | |
372 | tst->ss->match_home(tst, homehost) == 1)) { | |
373 | if (report_missmatch) | |
374 | fprintf(stderr, Name ": %s has metadata type %s for which " | |
375 | "auto-assembly is disabled\n", | |
376 | devname, tst->ss->name); | |
377 | tmpdev->used = 2; | |
378 | } | |
64c4757e | 379 | } |
c06487ce | 380 | if (dfd >= 0) close(dfd); |
d68ea4d7 N |
381 | if (tmpdev->used == 2) { |
382 | if (auto_assem) | |
383 | /* Ignore unrecognised devices during auto-assembly */ | |
384 | goto loop; | |
385 | if (ident->uuid_set || ident->name[0] || | |
386 | ident->super_minor != UnSet) | |
387 | /* Ignore unrecognised device if looking for | |
388 | * specific array */ | |
389 | goto loop; | |
390 | ||
391 | ||
392 | fprintf(stderr, Name ": %s has no superblock - assembly aborted\n", | |
393 | devname); | |
394 | if (st) | |
395 | st->ss->free_super(st); | |
396 | dev_policy_free(pol); | |
cbeeb0e5 | 397 | domain_free(domains); |
d68ea4d7 N |
398 | return 1; |
399 | } | |
52826846 | 400 | |
5083d66b | 401 | if (found_container) { |
9008ed1c N |
402 | /* tmpdev is a container. We need to be either |
403 | * looking for a member, or auto-assembling | |
404 | */ | |
9008ed1c N |
405 | |
406 | if (ident->container) { | |
407 | if (ident->container[0] == '/' && | |
408 | !same_dev(ident->container, devname)) { | |
409 | if (report_missmatch) | |
410 | fprintf(stderr, Name ": %s is not the container required (%s)\n", | |
411 | devname, ident->container); | |
412 | goto loop; | |
413 | } | |
414 | if (ident->container[0] != '/') { | |
415 | /* we have a uuid */ | |
416 | int uuid[4]; | |
87477e6d N |
417 | |
418 | content = &info; | |
419 | memset(content, 0, sizeof(*content)); | |
420 | tst->ss->getinfo_super(tst, content, NULL); | |
421 | ||
9008ed1c N |
422 | if (!parse_uuid(ident->container, uuid) || |
423 | !same_uuid(content->uuid, uuid, tst->ss->swapuuid)) { | |
424 | if (report_missmatch) | |
425 | fprintf(stderr, Name ": %s has wrong UUID to be required container\n", | |
426 | devname); | |
427 | goto loop; | |
428 | } | |
429 | } | |
430 | } | |
431 | /* It is worth looking inside this container. | |
432 | */ | |
7636b5a8 N |
433 | if (verbose > 0) |
434 | fprintf(stderr, Name ": looking in container %s\n", | |
435 | devname); | |
1415fe4b | 436 | |
88cef9b3 N |
437 | for (content = tst->ss->container_content(tst, NULL); |
438 | content; | |
439 | content = content->next) { | |
1415fe4b | 440 | |
a06d022d KW |
441 | /* do not assemble arrays that might have bad blocks */ |
442 | if (content->array.state & (1<<MD_SB_BBM_ERRORS)) { | |
443 | fprintf(stderr, Name ": BBM log found in metadata. " | |
444 | "Cannot activate array(s).\n"); | |
445 | tmpdev->used = 2; | |
446 | goto loop; | |
447 | } | |
88cef9b3 N |
448 | if (!ident_matches(ident, content, tst, |
449 | homehost, update, | |
450 | report_missmatch ? devname : NULL)) | |
451 | /* message already printed */; | |
452 | else if (is_member_busy(content->text_version)) { | |
453 | if (report_missmatch) | |
454 | fprintf(stderr, Name ": member %s in %s is already assembled\n", | |
455 | content->text_version, | |
456 | devname); | |
457 | } else | |
458 | break; | |
459 | } | |
460 | if (!content) { | |
f7ad3ccc | 461 | tmpdev->used = 2; |
88cef9b3 | 462 | goto loop; /* empty container */ |
fa031239 | 463 | } |
88cef9b3 | 464 | |
9008ed1c | 465 | st = tst; tst = NULL; |
4c1c3ad8 | 466 | if (!auto_assem && inargv && tmpdev->next != NULL) { |
9008ed1c N |
467 | fprintf(stderr, Name ": %s is a container, but is not " |
468 | "only device given: confused and aborting\n", | |
469 | devname); | |
470 | st->ss->free_super(st); | |
4e8d9f0a | 471 | dev_policy_free(pol); |
cbeeb0e5 | 472 | domain_free(domains); |
9008ed1c N |
473 | return 1; |
474 | } | |
7636b5a8 N |
475 | if (verbose > 0) |
476 | fprintf(stderr, Name ": found match on member %s in %s\n", | |
477 | content->text_version, devname); | |
bac0d92e | 478 | |
5083d66b N |
479 | /* make sure we finished the loop */ |
480 | tmpdev = NULL; | |
bac0d92e | 481 | goto loop; |
5083d66b | 482 | } else { |
bac0d92e | 483 | |
5083d66b N |
484 | content = &info; |
485 | memset(content, 0, sizeof(*content)); | |
486 | tst->ss->getinfo_super(tst, content, NULL); | |
487 | ||
488 | if (!ident_matches(ident, content, tst, | |
489 | homehost, update, | |
490 | report_missmatch ? devname : NULL)) | |
df37ffc0 | 491 | goto loop; |
cbeeb0e5 | 492 | |
5083d66b N |
493 | if (st == NULL) |
494 | st = dup_super(tst); | |
495 | if (st->minor_version == -1) | |
496 | st->minor_version = tst->minor_version; | |
ed7fc6b4 AC |
497 | |
498 | if (memcmp(content->uuid, uuid_zero, | |
499 | sizeof(int[4])) == 0) { | |
500 | /* this is a floating spare. It cannot define | |
501 | * an array unless there are no more arrays of | |
502 | * this type to be found. It can be included | |
503 | * in an array of this type though. | |
504 | */ | |
505 | tmpdev->used = 3; | |
506 | goto loop; | |
507 | } | |
508 | ||
5083d66b N |
509 | if (st->ss != tst->ss || |
510 | st->minor_version != tst->minor_version || | |
511 | st->ss->compare_super(st, tst) != 0) { | |
512 | /* Some mismatch. If exactly one array matches this host, | |
513 | * we can resolve on that one. | |
514 | * Or, if we are auto assembling, we just ignore the second | |
515 | * for now. | |
516 | */ | |
517 | if (auto_assem) | |
518 | goto loop; | |
519 | if (homehost) { | |
520 | int first = st->ss->match_home(st, homehost); | |
521 | int last = tst->ss->match_home(tst, homehost); | |
522 | if (first != last && | |
523 | (first == 1 || last == 1)) { | |
524 | /* We can do something */ | |
525 | if (first) {/* just ignore this one */ | |
526 | if (report_missmatch) | |
527 | fprintf(stderr, Name ": %s misses out due to wrong homehost\n", | |
528 | devname); | |
529 | goto loop; | |
530 | } else { /* reject all those sofar */ | |
531 | struct mddev_dev *td; | |
532 | if (report_missmatch) | |
533 | fprintf(stderr, Name ": %s overrides previous devices due to good homehost\n", | |
534 | devname); | |
535 | for (td=devlist; td != tmpdev; td=td->next) | |
536 | if (td->used == 1) | |
537 | td->used = 0; | |
538 | tmpdev->used = 1; | |
539 | goto loop; | |
540 | } | |
83b6208e NB |
541 | } |
542 | } | |
5083d66b N |
543 | fprintf(stderr, Name ": superblock on %s doesn't match others - assembly aborted\n", |
544 | devname); | |
545 | tst->ss->free_super(tst); | |
546 | st->ss->free_super(st); | |
547 | dev_policy_free(pol); | |
cbeeb0e5 | 548 | domain_free(domains); |
5083d66b | 549 | return 1; |
83b6208e | 550 | } |
5083d66b | 551 | tmpdev->used = 1; |
64c4757e | 552 | } |
df37ffc0 | 553 | loop: |
cbeeb0e5 | 554 | /* Collect domain information from members only */ |
26b05aea AC |
555 | if (tmpdev && tmpdev->used == 1) { |
556 | if (!pol) | |
557 | pol = devnum_policy(stb.st_rdev); | |
cbeeb0e5 | 558 | domain_merge(&domains, pol, tst?tst->ss->name:NULL); |
26b05aea | 559 | } |
4e8d9f0a N |
560 | dev_policy_free(pol); |
561 | pol = NULL; | |
3d2b16e7 NB |
562 | if (tst) |
563 | tst->ss->free_super(tst); | |
811e6cbe NB |
564 | } |
565 | ||
ed7fc6b4 AC |
566 | /* Check if we found some imsm spares but no members */ |
567 | if (auto_assem && (!st || !st->sb)) | |
568 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
569 | if (tmpdev->used != 3) | |
570 | continue; | |
571 | tmpdev->used = 1; | |
572 | content = &info; | |
573 | ||
574 | if (!st->sb) { | |
575 | /* we need sb from one of the spares */ | |
576 | int dfd = dev_open(tmpdev->devname, O_RDONLY); | |
577 | if (dfd < 0 || | |
578 | st->ss->load_super(st, dfd, NULL)) | |
579 | tmpdev->used = 2; | |
580 | if (dfd > 0) | |
581 | close(dfd); | |
582 | } | |
583 | } | |
584 | ||
cbeeb0e5 AC |
585 | /* Now reject spares that don't match domains of identified members */ |
586 | for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) { | |
587 | struct stat stb; | |
588 | if (tmpdev->used != 3) | |
589 | continue; | |
590 | if (stat(tmpdev->devname, &stb)< 0) { | |
591 | fprintf(stderr, Name ": fstat failed for %s: %s\n", | |
592 | tmpdev->devname, strerror(errno)); | |
593 | tmpdev->used = 2; | |
594 | } else { | |
595 | struct dev_policy *pol = NULL; | |
596 | pol = devnum_policy(stb.st_rdev); | |
597 | if (domain_test(domains, pol, NULL)) | |
598 | /* take this spare if domains match */ | |
599 | tmpdev->used = 1; | |
600 | else | |
601 | /* if domains don't match mark as unused */ | |
602 | tmpdev->used = 0; | |
603 | dev_policy_free(pol); | |
604 | } | |
605 | } | |
606 | domain_free(domains); | |
607 | ||
98dbd966 | 608 | if (!st || !st->sb || !content) |
c30e5369 N |
609 | return 2; |
610 | ||
05833051 | 611 | /* Now need to open the array device. Use create_mddev */ |
98dbd966 | 612 | if (content == &info) |
a5d85af7 | 613 | st->ss->getinfo_super(st, content, NULL); |
3d2c4fc7 | 614 | |
69207ff6 | 615 | trustworthy = FOREIGN; |
05833051 | 616 | name = content->name; |
745f72f6 N |
617 | switch (st->ss->match_home(st, homehost) |
618 | ?: st->ss->match_home(st, "any")) { | |
69207ff6 N |
619 | case 1: |
620 | trustworthy = LOCAL; | |
98dbd966 | 621 | name = strchr(content->name, ':'); |
69207ff6 N |
622 | if (name) |
623 | name++; | |
3d2c4fc7 | 624 | else |
98dbd966 | 625 | name = content->name; |
69207ff6 | 626 | break; |
c30e5369 | 627 | } |
05833051 | 628 | if (!auto_assem) |
aa7c284c | 629 | /* If the array is listed in mdadm.conf or on |
ac2ecf55 N |
630 | * command line, then we trust the name |
631 | * even if the array doesn't look local | |
632 | */ | |
633 | trustworthy = LOCAL; | |
634 | ||
05833051 | 635 | if (name[0] == 0 && |
98dbd966 DW |
636 | content->array.level == LEVEL_CONTAINER) { |
637 | name = content->text_version; | |
a4bc1720 N |
638 | trustworthy = METADATA; |
639 | } | |
0ac91628 N |
640 | |
641 | if (name[0] && trustworthy != LOCAL && | |
642 | ! require_homehost && | |
643 | conf_name_is_free(name)) | |
644 | trustworthy = LOCAL; | |
645 | ||
7cdc0872 N |
646 | if (trustworthy == LOCAL && |
647 | strchr(name, ':')) | |
648 | /* Ignore 'host:' prefix of name */ | |
649 | name = strchr(name, ':')+1; | |
650 | ||
a04d5763 N |
651 | mdfd = create_mddev(mddev, name, ident->autof, trustworthy, |
652 | chosen_name); | |
c30e5369 N |
653 | if (mdfd < 0) { |
654 | st->ss->free_super(st); | |
c30e5369 | 655 | if (auto_assem) |
60e1bc1a | 656 | goto try_again; |
c30e5369 N |
657 | return 1; |
658 | } | |
a04d5763 | 659 | mddev = chosen_name; |
c30e5369 N |
660 | vers = md_get_version(mdfd); |
661 | if (vers < 9000) { | |
662 | fprintf(stderr, Name ": Assemble requires driver version 0.90.0 or later.\n" | |
663 | " Upgrade your kernel or try --build\n"); | |
664 | close(mdfd); | |
665 | return 1; | |
666 | } | |
66afdfa9 | 667 | if (mddev_busy(fd2devnum(mdfd))) { |
c30e5369 N |
668 | fprintf(stderr, Name ": %s already active, cannot restart it!\n", |
669 | mddev); | |
670 | for (tmpdev = devlist ; | |
671 | tmpdev && tmpdev->used != 1; | |
672 | tmpdev = tmpdev->next) | |
673 | ; | |
674 | if (tmpdev && auto_assem) | |
675 | fprintf(stderr, Name ": %s needed for %s...\n", | |
676 | mddev, tmpdev->devname); | |
677 | close(mdfd); | |
678 | mdfd = -3; | |
679 | st->ss->free_super(st); | |
c30e5369 N |
680 | if (auto_assem) |
681 | goto try_again; | |
682 | return 1; | |
8a46fe84 | 683 | } |
c30e5369 | 684 | ioctl(mdfd, STOP_ARRAY, NULL); /* just incase it was started but has no content */ |
8a46fe84 | 685 | |
9008ed1c N |
686 | #ifndef MDASSEMBLE |
687 | if (content != &info) { | |
688 | /* This is a member of a container. Try starting the array. */ | |
689 | return assemble_container_content(st, mdfd, content, runstop, | |
690 | chosen_name, verbose); | |
691 | } | |
692 | #endif | |
811e6cbe | 693 | /* Ok, no bad inconsistancy, we can try updating etc */ |
bf4fb153 | 694 | bitmap_done = 0; |
6e46bf34 | 695 | content->update_private = NULL; |
d7f7ebb7 | 696 | devices = malloc(num_devs * sizeof(*devices)); |
02e7c5b7 | 697 | devmap = calloc(num_devs * content->array.raid_disks, 1); |
da6b5ca9 | 698 | for (tmpdev = devlist; tmpdev; tmpdev=tmpdev->next) if (tmpdev->used == 1) { |
811e6cbe NB |
699 | char *devname = tmpdev->devname; |
700 | struct stat stb; | |
5787fa49 | 701 | /* looks like a good enough match to update the super block if needed */ |
d1f1011b | 702 | #ifndef MDASSEMBLE |
5787fa49 | 703 | if (update) { |
811e6cbe | 704 | int dfd; |
4b1ac34b NB |
705 | /* prepare useful information in info structures */ |
706 | struct stat stb2; | |
3da92f27 | 707 | struct supertype *tst; |
1e2b2765 | 708 | int err; |
4b1ac34b | 709 | fstat(mdfd, &stb2); |
7d99579f NB |
710 | |
711 | if (strcmp(update, "uuid")==0 && | |
712 | !ident->uuid_set) { | |
713 | int rfd; | |
714 | if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 || | |
715 | read(rfd, ident->uuid, 16) != 16) { | |
716 | *(__u32*)(ident->uuid) = random(); | |
717 | *(__u32*)(ident->uuid+1) = random(); | |
718 | *(__u32*)(ident->uuid+2) = random(); | |
719 | *(__u32*)(ident->uuid+3) = random(); | |
720 | } | |
721 | if (rfd >= 0) close(rfd); | |
7d99579f | 722 | } |
811e6cbe NB |
723 | dfd = dev_open(devname, O_RDWR|O_EXCL); |
724 | ||
3da92f27 | 725 | tst = dup_super(st); |
9f22b13f N |
726 | if (dfd < 0 || tst->ss->load_super(tst, dfd, NULL) != 0) { |
727 | fprintf(stderr, Name ": cannot re-read metadata from %s - aborting\n", | |
728 | devname); | |
729 | if (dfd >= 0) | |
730 | close(dfd); | |
731 | close(mdfd); | |
d7f7ebb7 | 732 | free(devices); |
02e7c5b7 | 733 | free(devmap); |
9f22b13f N |
734 | return 1; |
735 | } | |
02e7c5b7 | 736 | tst->ss->getinfo_super(tst, content, devmap + devcnt * content->array.raid_disks); |
811e6cbe | 737 | |
98dbd966 DW |
738 | memcpy(content->uuid, ident->uuid, 16); |
739 | strcpy(content->name, ident->name); | |
740 | content->array.md_minor = minor(stb2.st_rdev); | |
811e6cbe | 741 | |
1e2b2765 N |
742 | if (strcmp(update, "byteorder") == 0) |
743 | err = 0; | |
744 | else | |
745 | err = tst->ss->update_super(tst, content, update, | |
746 | devname, verbose, | |
747 | ident->uuid_set, | |
748 | homehost); | |
749 | if (err < 0) { | |
750 | fprintf(stderr, | |
751 | Name ": --update=%s not understood" | |
752 | " for %s metadata\n", | |
753 | update, tst->ss->name); | |
754 | tst->ss->free_super(tst); | |
755 | free(tst); | |
756 | close(mdfd); | |
757 | close(dfd); | |
d7f7ebb7 | 758 | free(devices); |
02e7c5b7 | 759 | free(devmap); |
1e2b2765 N |
760 | return 1; |
761 | } | |
e5eac01f NB |
762 | if (strcmp(update, "uuid")==0 && |
763 | !ident->uuid_set) { | |
764 | ident->uuid_set = 1; | |
98dbd966 | 765 | memcpy(ident->uuid, content->uuid, 16); |
e5eac01f | 766 | } |
1e2b2765 | 767 | if (tst->ss->store_super(tst, dfd)) |
5787fa49 NB |
768 | fprintf(stderr, Name ": Could not re-write superblock on %s.\n", |
769 | devname); | |
1e2b2765 | 770 | close(dfd); |
8131b493 NB |
771 | |
772 | if (strcmp(update, "uuid")==0 && | |
bf4fb153 | 773 | ident->bitmap_fd >= 0 && !bitmap_done) { |
3da92f27 | 774 | if (bitmap_update_uuid(ident->bitmap_fd, |
98dbd966 | 775 | content->uuid, |
3da92f27 | 776 | tst->ss->swapuuid) != 0) |
bf4fb153 NB |
777 | fprintf(stderr, Name ": Could not update uuid on external bitmap.\n"); |
778 | else | |
779 | bitmap_done = 1; | |
780 | } | |
3da92f27 | 781 | tst->ss->free_super(tst); |
d1f1011b NB |
782 | } else |
783 | #endif | |
784 | { | |
30e1b9a5 | 785 | struct supertype *tst = dup_super(st); |
da6b5ca9 NB |
786 | int dfd; |
787 | dfd = dev_open(devname, O_RDWR|O_EXCL); | |
788 | ||
9f22b13f N |
789 | if (dfd < 0 || tst->ss->load_super(tst, dfd, NULL) != 0) { |
790 | fprintf(stderr, Name ": cannot re-read metadata from %s - aborting\n", | |
791 | devname); | |
792 | if (dfd >= 0) | |
793 | close(dfd); | |
794 | close(mdfd); | |
d7f7ebb7 | 795 | free(devices); |
02e7c5b7 | 796 | free(devmap); |
9f22b13f N |
797 | return 1; |
798 | } | |
02e7c5b7 | 799 | tst->ss->getinfo_super(tst, content, devmap + devcnt * content->array.raid_disks); |
3da92f27 | 800 | tst->ss->free_super(tst); |
da6b5ca9 | 801 | close(dfd); |
5787fa49 NB |
802 | } |
803 | ||
811e6cbe NB |
804 | stat(devname, &stb); |
805 | ||
dab6685f | 806 | if (verbose > 0) |
cd29a5c8 | 807 | fprintf(stderr, Name ": %s is identified as a member of %s, slot %d.\n", |
98dbd966 | 808 | devname, mddev, content->disk.raid_disk); |
64c4757e | 809 | devices[devcnt].devname = devname; |
64c4757e | 810 | devices[devcnt].uptodate = 0; |
98dbd966 | 811 | devices[devcnt].i = *content; |
213ee40b NB |
812 | devices[devcnt].i.disk.major = major(stb.st_rdev); |
813 | devices[devcnt].i.disk.minor = minor(stb.st_rdev); | |
64c4757e | 814 | if (most_recent < devcnt) { |
213ee40b NB |
815 | if (devices[devcnt].i.events |
816 | > devices[most_recent].i.events) | |
64c4757e NB |
817 | most_recent = devcnt; |
818 | } | |
df0d4ea0 | 819 | if (content->array.level == LEVEL_MULTIPATH) |
5787fa49 NB |
820 | /* with multipath, the raid_disk from the superblock is meaningless */ |
821 | i = devcnt; | |
822 | else | |
213ee40b | 823 | i = devices[devcnt].i.disk.raid_disk; |
308e1801 | 824 | if (i+1 == 0) { |
98dbd966 DW |
825 | if (nextspare < content->array.raid_disks) |
826 | nextspare = content->array.raid_disks; | |
308e1801 | 827 | i = nextspare++; |
08110d41 | 828 | } else { |
98dbd966 | 829 | if (i >= content->array.raid_disks && |
08110d41 NB |
830 | i >= nextspare) |
831 | nextspare = i+1; | |
308e1801 | 832 | } |
98c6faba | 833 | if (i < 10000) { |
56eedc1a | 834 | if (i >= bestcnt) { |
f21e18ca | 835 | int newbestcnt = i+10; |
56eedc1a | 836 | int *newbest = malloc(sizeof(int)*newbestcnt); |
f21e18ca | 837 | int c; |
56eedc1a NB |
838 | for (c=0; c < newbestcnt; c++) |
839 | if (c < bestcnt) | |
840 | newbest[c] = best[c]; | |
841 | else | |
842 | newbest[c] = -1; | |
843 | if (best)free(best); | |
844 | best = newbest; | |
845 | bestcnt = newbestcnt; | |
846 | } | |
6a255b69 | 847 | if (best[i] >=0 && |
213ee40b NB |
848 | devices[best[i]].i.events |
849 | == devices[devcnt].i.events | |
850 | && (devices[best[i]].i.disk.minor | |
851 | != devices[devcnt].i.disk.minor) | |
b8ac1967 | 852 | && st->ss == &super0 |
98dbd966 | 853 | && content->array.level != LEVEL_MULTIPATH) { |
6a255b69 NB |
854 | /* two different devices with identical superblock. |
855 | * Could be a mis-detection caused by overlapping | |
856 | * partitions. fail-safe. | |
857 | */ | |
858 | fprintf(stderr, Name ": WARNING %s and %s appear" | |
859 | " to have very similar superblocks.\n" | |
860 | " If they are really different, " | |
861 | "please --zero the superblock on one\n" | |
d2df86e0 NB |
862 | " If they are the same or overlap," |
863 | " please remove one from %s.\n", | |
864 | devices[best[i]].devname, devname, | |
865 | inargv ? "the list" : | |
866 | "the\n DEVICE list in mdadm.conf" | |
867 | ); | |
7f91af49 | 868 | close(mdfd); |
d7f7ebb7 | 869 | free(devices); |
02e7c5b7 | 870 | free(devmap); |
6a255b69 NB |
871 | return 1; |
872 | } | |
52826846 | 873 | if (best[i] == -1 |
213ee40b NB |
874 | || (devices[best[i]].i.events |
875 | < devices[devcnt].i.events)) | |
52826846 | 876 | best[i] = devcnt; |
56eedc1a | 877 | } |
64c4757e | 878 | devcnt++; |
df37ffc0 | 879 | } |
6e46bf34 DW |
880 | free(content->update_private); |
881 | content->update_private = NULL; | |
4b1ac34b | 882 | |
64c4757e | 883 | if (devcnt == 0) { |
682c7051 | 884 | fprintf(stderr, Name ": no devices found for %s\n", |
64c4757e | 885 | mddev); |
3d2b16e7 NB |
886 | if (st) |
887 | st->ss->free_super(st); | |
7f91af49 | 888 | close(mdfd); |
d7f7ebb7 | 889 | free(devices); |
02e7c5b7 | 890 | free(devmap); |
64c4757e NB |
891 | return 1; |
892 | } | |
4b1ac34b | 893 | |
3d2b16e7 NB |
894 | if (update && strcmp(update, "byteorder")==0) |
895 | st->minor_version = 90; | |
896 | ||
a5d85af7 | 897 | st->ss->getinfo_super(st, content, NULL); |
98dbd966 | 898 | clean = content->array.state & 1; |
4b1ac34b | 899 | |
64c4757e NB |
900 | /* now we have some devices that might be suitable. |
901 | * I wonder how many | |
902 | */ | |
98dbd966 DW |
903 | avail = malloc(content->array.raid_disks); |
904 | memset(avail, 0, content->array.raid_disks); | |
64c4757e | 905 | okcnt = 0; |
52826846 | 906 | sparecnt=0; |
1ff98339 | 907 | rebuilding_cnt=0; |
f21e18ca | 908 | for (i=0; i< bestcnt; i++) { |
64c4757e | 909 | int j = best[i]; |
ee04451c NB |
910 | int event_margin = 1; /* always allow a difference of '1' |
911 | * like the kernel does | |
912 | */ | |
64c4757e | 913 | if (j < 0) continue; |
d013a55e NB |
914 | /* note: we ignore error flags in multipath arrays |
915 | * as they don't make sense | |
916 | */ | |
df0d4ea0 | 917 | if (content->array.level != LEVEL_MULTIPATH) |
f22385f9 | 918 | if (!(devices[j].i.disk.state & (1<<MD_DISK_ACTIVE))) { |
213ee40b | 919 | if (!(devices[j].i.disk.state |
ed7fc6b4 AC |
920 | & (1<<MD_DISK_FAULTY))) { |
921 | devices[j].uptodate = 1; | |
aa88f531 | 922 | sparecnt++; |
ed7fc6b4 | 923 | } |
d013a55e | 924 | continue; |
aa88f531 | 925 | } |
02e7c5b7 N |
926 | /* If this devices thinks that 'most_recent' has failed, then |
927 | * we must reject this device. | |
928 | */ | |
929 | if (j != most_recent && | |
930 | content->array.raid_disks > 0 && | |
931 | devices[most_recent].i.disk.raid_disk >= 0 && | |
932 | devmap[j * content->array.raid_disks + devices[most_recent].i.disk.raid_disk] == 0) { | |
933 | if (verbose > -1) | |
934 | fprintf(stderr, Name ": ignoring %s as it reports %s as failed\n", | |
935 | devices[j].devname, devices[most_recent].devname); | |
936 | best[i] = -1; | |
937 | continue; | |
938 | } | |
213ee40b NB |
939 | if (devices[j].i.events+event_margin >= |
940 | devices[most_recent].i.events) { | |
64c4757e | 941 | devices[j].uptodate = 1; |
1ff98339 | 942 | if (i < content->array.raid_disks) { |
dcc4210f DW |
943 | if (devices[j].i.recovery_start == MaxSector || |
944 | (content->reshape_active && | |
945 | j >= content->array.raid_disks - content->delta_disks)) { | |
1ff98339 N |
946 | okcnt++; |
947 | avail[i]=1; | |
948 | } else | |
949 | rebuilding_cnt++; | |
265e0f17 | 950 | } else |
52826846 | 951 | sparecnt++; |
64c4757e NB |
952 | } |
953 | } | |
02e7c5b7 | 954 | free(devmap); |
98dbd966 DW |
955 | while (force && !enough(content->array.level, content->array.raid_disks, |
956 | content->array.layout, 1, | |
265e0f17 | 957 | avail, okcnt)) { |
64c4757e NB |
958 | /* Choose the newest best drive which is |
959 | * not up-to-date, update the superblock | |
960 | * and add it. | |
961 | */ | |
52826846 | 962 | int fd; |
3da92f27 | 963 | struct supertype *tst; |
f21e18ca | 964 | unsigned long long current_events; |
cd29a5c8 | 965 | chosen_drive = -1; |
f21e18ca | 966 | for (i = 0; i < content->array.raid_disks && i < bestcnt; i++) { |
52826846 NB |
967 | int j = best[i]; |
968 | if (j>=0 && | |
969 | !devices[j].uptodate && | |
921d9e16 | 970 | devices[j].i.recovery_start == MaxSector && |
52826846 | 971 | (chosen_drive < 0 || |
213ee40b NB |
972 | devices[j].i.events |
973 | > devices[chosen_drive].i.events)) | |
52826846 NB |
974 | chosen_drive = j; |
975 | } | |
976 | if (chosen_drive < 0) | |
977 | break; | |
213ee40b | 978 | current_events = devices[chosen_drive].i.events; |
c5a6f9a6 | 979 | add_another: |
dab6685f NB |
980 | if (verbose >= 0) |
981 | fprintf(stderr, Name ": forcing event count in %s(%d) from %d upto %d\n", | |
213ee40b NB |
982 | devices[chosen_drive].devname, |
983 | devices[chosen_drive].i.disk.raid_disk, | |
984 | (int)(devices[chosen_drive].i.events), | |
985 | (int)(devices[most_recent].i.events)); | |
8b0dabea | 986 | fd = dev_open(devices[chosen_drive].devname, O_RDWR|O_EXCL); |
52826846 NB |
987 | if (fd < 0) { |
988 | fprintf(stderr, Name ": Couldn't open %s for write - not updating\n", | |
989 | devices[chosen_drive].devname); | |
213ee40b | 990 | devices[chosen_drive].i.events = 0; |
52826846 NB |
991 | continue; |
992 | } | |
3da92f27 | 993 | tst = dup_super(st); |
60b435db | 994 | if (tst->ss->load_super(tst,fd, NULL)) { |
52826846 NB |
995 | close(fd); |
996 | fprintf(stderr, Name ": RAID superblock disappeared from %s - not updating.\n", | |
997 | devices[chosen_drive].devname); | |
213ee40b | 998 | devices[chosen_drive].i.events = 0; |
52826846 NB |
999 | continue; |
1000 | } | |
98dbd966 DW |
1001 | content->events = devices[most_recent].i.events; |
1002 | tst->ss->update_super(tst, content, "force-one", | |
67a8c82d NB |
1003 | devices[chosen_drive].devname, verbose, |
1004 | 0, NULL); | |
4b1ac34b | 1005 | |
3da92f27 | 1006 | if (tst->ss->store_super(tst, fd)) { |
52826846 NB |
1007 | close(fd); |
1008 | fprintf(stderr, Name ": Could not re-write superblock on %s\n", | |
1009 | devices[chosen_drive].devname); | |
213ee40b | 1010 | devices[chosen_drive].i.events = 0; |
3da92f27 | 1011 | tst->ss->free_super(tst); |
52826846 NB |
1012 | continue; |
1013 | } | |
1014 | close(fd); | |
213ee40b | 1015 | devices[chosen_drive].i.events = devices[most_recent].i.events; |
52826846 | 1016 | devices[chosen_drive].uptodate = 1; |
265e0f17 | 1017 | avail[chosen_drive] = 1; |
52826846 | 1018 | okcnt++; |
3da92f27 | 1019 | tst->ss->free_super(tst); |
c5a6f9a6 NB |
1020 | |
1021 | /* If there are any other drives of the same vintage, | |
1022 | * add them in as well. We can't lose and we might gain | |
1023 | */ | |
f21e18ca | 1024 | for (i = 0; i < content->array.raid_disks && i < bestcnt ; i++) { |
c5a6f9a6 NB |
1025 | int j = best[i]; |
1026 | if (j >= 0 && | |
1027 | !devices[j].uptodate && | |
213ee40b | 1028 | devices[j].i.events == current_events) { |
c5a6f9a6 NB |
1029 | chosen_drive = j; |
1030 | goto add_another; | |
1031 | } | |
1032 | } | |
64c4757e | 1033 | } |
52826846 NB |
1034 | |
1035 | /* Now we want to look at the superblock which the kernel will base things on | |
1036 | * and compare the devices that we think are working with the devices that the | |
1037 | * superblock thinks are working. | |
1038 | * If there are differences and --force is given, then update this chosen | |
1039 | * superblock. | |
1040 | */ | |
cd29a5c8 | 1041 | chosen_drive = -1; |
3da92f27 | 1042 | st->ss->free_super(st); |
56eedc1a | 1043 | for (i=0; chosen_drive < 0 && i<bestcnt; i++) { |
52826846 NB |
1044 | int j = best[i]; |
1045 | int fd; | |
4b1ac34b | 1046 | |
52826846 NB |
1047 | if (j<0) |
1048 | continue; | |
1049 | if (!devices[j].uptodate) | |
1050 | continue; | |
1051 | chosen_drive = j; | |
8b0dabea | 1052 | if ((fd=dev_open(devices[j].devname, O_RDONLY|O_EXCL))< 0) { |
52826846 NB |
1053 | fprintf(stderr, Name ": Cannot open %s: %s\n", |
1054 | devices[j].devname, strerror(errno)); | |
7f91af49 | 1055 | close(mdfd); |
d7f7ebb7 | 1056 | free(devices); |
52826846 NB |
1057 | return 1; |
1058 | } | |
3da92f27 | 1059 | if (st->ss->load_super(st,fd, NULL)) { |
52826846 NB |
1060 | close(fd); |
1061 | fprintf(stderr, Name ": RAID superblock has disappeared from %s\n", | |
1062 | devices[j].devname); | |
7f91af49 | 1063 | close(mdfd); |
d7f7ebb7 | 1064 | free(devices); |
52826846 NB |
1065 | return 1; |
1066 | } | |
1067 | close(fd); | |
1068 | } | |
3da92f27 | 1069 | if (st->sb == NULL) { |
4b1ac34b | 1070 | fprintf(stderr, Name ": No suitable drives found for %s\n", mddev); |
7f91af49 | 1071 | close(mdfd); |
d7f7ebb7 | 1072 | free(devices); |
4b1ac34b NB |
1073 | return 1; |
1074 | } | |
a5d85af7 | 1075 | st->ss->getinfo_super(st, content, NULL); |
f35f2525 | 1076 | #ifndef MDASSEMBLE |
98dbd966 | 1077 | sysfs_init(content, mdfd, 0); |
f35f2525 | 1078 | #endif |
56eedc1a | 1079 | for (i=0; i<bestcnt; i++) { |
52826846 | 1080 | int j = best[i]; |
98c6faba | 1081 | unsigned int desired_state; |
11a3e71d | 1082 | |
98dbd966 | 1083 | if (i < content->array.raid_disks) |
11a3e71d NB |
1084 | desired_state = (1<<MD_DISK_ACTIVE) | (1<<MD_DISK_SYNC); |
1085 | else | |
1086 | desired_state = 0; | |
1087 | ||
52826846 NB |
1088 | if (j<0) |
1089 | continue; | |
1090 | if (!devices[j].uptodate) | |
1091 | continue; | |
4b1ac34b | 1092 | |
213ee40b | 1093 | devices[j].i.disk.state = desired_state; |
4e9a6ff7 N |
1094 | if (!(devices[j].i.array.state & 1)) |
1095 | clean = 0; | |
213ee40b NB |
1096 | |
1097 | if (st->ss->update_super(st, &devices[j].i, "assemble", NULL, | |
68c7d6d7 | 1098 | verbose, 0, NULL)) { |
52826846 | 1099 | if (force) { |
dab6685f NB |
1100 | if (verbose >= 0) |
1101 | fprintf(stderr, Name ": " | |
1102 | "clearing FAULTY flag for device %d in %s for %s\n", | |
1103 | j, mddev, devices[j].devname); | |
4b1ac34b | 1104 | change = 1; |
52826846 | 1105 | } else { |
dab6685f NB |
1106 | if (verbose >= -1) |
1107 | fprintf(stderr, Name ": " | |
1108 | "device %d in %s has wrong state in superblock, but %s seems ok\n", | |
1109 | i, mddev, devices[j].devname); | |
52826846 NB |
1110 | } |
1111 | } | |
4b1ac34b | 1112 | #if 0 |
213ee40b | 1113 | if (!(super.disks[i].i.disk.state & (1 << MD_DISK_FAULTY))) { |
52826846 NB |
1114 | fprintf(stderr, Name ": devices %d of %s is not marked FAULTY in superblock, but cannot be found\n", |
1115 | i, mddev); | |
1116 | } | |
4b1ac34b | 1117 | #endif |
52826846 | 1118 | } |
c5a6f9a6 | 1119 | if (force && !clean && |
98dbd966 DW |
1120 | !enough(content->array.level, content->array.raid_disks, |
1121 | content->array.layout, clean, | |
c5a6f9a6 | 1122 | avail, okcnt)) { |
98dbd966 | 1123 | change += st->ss->update_super(st, content, "force-array", |
67a8c82d NB |
1124 | devices[chosen_drive].devname, verbose, |
1125 | 0, NULL); | |
583315d9 | 1126 | clean = 1; |
d013a55e | 1127 | } |
52826846 | 1128 | |
4b1ac34b | 1129 | if (change) { |
52826846 | 1130 | int fd; |
8b0dabea | 1131 | fd = dev_open(devices[chosen_drive].devname, O_RDWR|O_EXCL); |
52826846 | 1132 | if (fd < 0) { |
353632d9 | 1133 | fprintf(stderr, Name ": Could not open %s for write - cannot Assemble array.\n", |
52826846 | 1134 | devices[chosen_drive].devname); |
7f91af49 | 1135 | close(mdfd); |
d7f7ebb7 | 1136 | free(devices); |
52826846 NB |
1137 | return 1; |
1138 | } | |
3da92f27 | 1139 | if (st->ss->store_super(st, fd)) { |
52826846 NB |
1140 | close(fd); |
1141 | fprintf(stderr, Name ": Could not re-write superblock on %s\n", | |
1142 | devices[chosen_drive].devname); | |
7f91af49 | 1143 | close(mdfd); |
d7f7ebb7 | 1144 | free(devices); |
52826846 NB |
1145 | return 1; |
1146 | } | |
1147 | close(fd); | |
52826846 NB |
1148 | } |
1149 | ||
353632d9 NB |
1150 | /* If we are in the middle of a reshape we may need to restore saved data |
1151 | * that was moved aside due to the reshape overwriting live data | |
1152 | * The code of doing this lives in Grow.c | |
1153 | */ | |
39c5a909 | 1154 | #ifndef MDASSEMBLE |
98dbd966 | 1155 | if (content->reshape_active) { |
353632d9 NB |
1156 | int err = 0; |
1157 | int *fdlist = malloc(sizeof(int)* bestcnt); | |
cd77ac4e | 1158 | if (verbose > 0) |
ea0ebe96 N |
1159 | fprintf(stderr, Name ":%s has an active reshape - checking " |
1160 | "if critical section needs to be restored\n", | |
1161 | chosen_name); | |
353632d9 NB |
1162 | for (i=0; i<bestcnt; i++) { |
1163 | int j = best[i]; | |
1164 | if (j >= 0) { | |
1165 | fdlist[i] = dev_open(devices[j].devname, O_RDWR|O_EXCL); | |
1166 | if (fdlist[i] < 0) { | |
1167 | fprintf(stderr, Name ": Could not open %s for write - cannot Assemble array.\n", | |
1168 | devices[j].devname); | |
1169 | err = 1; | |
1170 | break; | |
1171 | } | |
1172 | } else | |
1173 | fdlist[i] = -1; | |
1174 | } | |
87f26d14 N |
1175 | if (!err) { |
1176 | err = Grow_restart(st, content, fdlist, bestcnt, | |
1177 | backup_file, verbose > 0); | |
1178 | if (err && invalid_backup) { | |
1179 | if (verbose > 0) | |
1180 | fprintf(stderr, Name ": continuing" | |
1181 | " without restoring backup\n"); | |
1182 | err = 0; | |
1183 | } | |
1184 | } | |
353632d9 NB |
1185 | while (i>0) { |
1186 | i--; | |
1187 | if (fdlist[i]>=0) close(fdlist[i]); | |
1188 | } | |
1189 | if (err) { | |
1190 | fprintf(stderr, Name ": Failed to restore critical section for reshape, sorry.\n"); | |
e9e43ec3 N |
1191 | if (backup_file == NULL) |
1192 | fprintf(stderr," Possibly you needed to specify the --backup-file\n"); | |
7f91af49 | 1193 | close(mdfd); |
d7f7ebb7 | 1194 | free(devices); |
353632d9 NB |
1195 | return err; |
1196 | } | |
1197 | } | |
39c5a909 | 1198 | #endif |
aa88f531 NB |
1199 | /* count number of in-sync devices according to the superblock. |
1200 | * We must have this number to start the array without -s or -R | |
1201 | */ | |
98dbd966 | 1202 | req_cnt = content->array.working_disks; |
aa88f531 | 1203 | |
64c4757e NB |
1204 | /* Almost ready to actually *do* something */ |
1205 | if (!old_linux) { | |
fbf8a0b7 | 1206 | int rv; |
a19c88b8 | 1207 | |
a04d5763 N |
1208 | /* First, fill in the map, so that udev can find our name |
1209 | * as soon as we become active. | |
1210 | */ | |
98dbd966 DW |
1211 | map_update(NULL, fd2devnum(mdfd), content->text_version, |
1212 | content->uuid, chosen_name); | |
a04d5763 | 1213 | |
98dbd966 | 1214 | rv = set_array_info(mdfd, st, content); |
fbf8a0b7 | 1215 | if (rv) { |
f35f2525 | 1216 | fprintf(stderr, Name ": failed to set array info for %s: %s\n", |
64c4757e | 1217 | mddev, strerror(errno)); |
24af7a87 | 1218 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1219 | close(mdfd); |
d7f7ebb7 | 1220 | free(devices); |
64c4757e NB |
1221 | return 1; |
1222 | } | |
11484a63 | 1223 | if (ident->bitmap_fd >= 0) { |
c82f047c NB |
1224 | if (ioctl(mdfd, SET_BITMAP_FILE, ident->bitmap_fd) != 0) { |
1225 | fprintf(stderr, Name ": SET_BITMAP_FILE failed.\n"); | |
24af7a87 | 1226 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1227 | close(mdfd); |
d7f7ebb7 | 1228 | free(devices); |
c82f047c NB |
1229 | return 1; |
1230 | } | |
7ef02d01 NB |
1231 | } else if (ident->bitmap_file) { |
1232 | /* From config file */ | |
1233 | int bmfd = open(ident->bitmap_file, O_RDWR); | |
1234 | if (bmfd < 0) { | |
1235 | fprintf(stderr, Name ": Could not open bitmap file %s\n", | |
1236 | ident->bitmap_file); | |
24af7a87 | 1237 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1238 | close(mdfd); |
d7f7ebb7 | 1239 | free(devices); |
7ef02d01 NB |
1240 | return 1; |
1241 | } | |
1242 | if (ioctl(mdfd, SET_BITMAP_FILE, bmfd) != 0) { | |
1243 | fprintf(stderr, Name ": Failed to set bitmapfile for %s\n", mddev); | |
1244 | close(bmfd); | |
24af7a87 | 1245 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1246 | close(mdfd); |
d7f7ebb7 | 1247 | free(devices); |
7ef02d01 NB |
1248 | return 1; |
1249 | } | |
1250 | close(bmfd); | |
c82f047c | 1251 | } |
7ef02d01 | 1252 | |
52826846 | 1253 | /* First, add the raid disks, but add the chosen one last */ |
56eedc1a | 1254 | for (i=0; i<= bestcnt; i++) { |
52826846 | 1255 | int j; |
56eedc1a | 1256 | if (i < bestcnt) { |
52826846 NB |
1257 | j = best[i]; |
1258 | if (j == chosen_drive) | |
1259 | continue; | |
1260 | } else | |
1261 | j = chosen_drive; | |
1262 | ||
56eedc1a | 1263 | if (j >= 0 /* && devices[j].uptodate */) { |
484ae54d N |
1264 | int dfd = dev_open(devices[j].devname, |
1265 | O_RDWR|O_EXCL); | |
1266 | if (dfd >= 0) { | |
1267 | remove_partitions(dfd); | |
1268 | close(dfd); | |
1269 | } | |
98dbd966 | 1270 | rv = add_disk(mdfd, st, content, &devices[j].i); |
7801ac20 | 1271 | |
a19c88b8 | 1272 | if (rv) { |
213ee40b NB |
1273 | fprintf(stderr, Name ": failed to add " |
1274 | "%s to %s: %s\n", | |
64c4757e NB |
1275 | devices[j].devname, |
1276 | mddev, | |
1277 | strerror(errno)); | |
98dbd966 | 1278 | if (i < content->array.raid_disks |
213ee40b | 1279 | || i == bestcnt) |
52826846 NB |
1280 | okcnt--; |
1281 | else | |
1282 | sparecnt--; | |
dab6685f | 1283 | } else if (verbose > 0) |
213ee40b NB |
1284 | fprintf(stderr, Name ": added %s " |
1285 | "to %s as %d\n", | |
1286 | devices[j].devname, mddev, | |
1287 | devices[j].i.disk.raid_disk); | |
98dbd966 | 1288 | } else if (verbose > 0 && i < content->array.raid_disks) |
213ee40b NB |
1289 | fprintf(stderr, Name ": no uptodate device for " |
1290 | "slot %d of %s\n", | |
64c4757e NB |
1291 | i, mddev); |
1292 | } | |
aba69144 | 1293 | |
98dbd966 | 1294 | if (content->array.level == LEVEL_CONTAINER) { |
598f0d58 NB |
1295 | if (verbose >= 0) { |
1296 | fprintf(stderr, Name ": Container %s has been " | |
1297 | "assembled with %d drive%s", | |
57ed8c91 | 1298 | mddev, okcnt+sparecnt, okcnt+sparecnt==1?"":"s"); |
f21e18ca | 1299 | if (okcnt < (unsigned)content->array.raid_disks) |
598f0d58 | 1300 | fprintf(stderr, " (out of %d)", |
98dbd966 | 1301 | content->array.raid_disks); |
598f0d58 NB |
1302 | fprintf(stderr, "\n"); |
1303 | } | |
98dbd966 | 1304 | sysfs_uevent(content, "change"); |
a7c6e3fb | 1305 | wait_for(chosen_name, mdfd); |
7f91af49 | 1306 | close(mdfd); |
d7f7ebb7 | 1307 | free(devices); |
598f0d58 NB |
1308 | return 0; |
1309 | } | |
1310 | ||
64c4757e | 1311 | if (runstop == 1 || |
b8a8ccf9 | 1312 | (runstop <= 0 && |
98dbd966 DW |
1313 | ( enough(content->array.level, content->array.raid_disks, |
1314 | content->array.layout, clean, avail, okcnt) && | |
1ff98339 | 1315 | (okcnt + rebuilding_cnt >= req_cnt || start_partial_ok) |
aa88f531 | 1316 | ))) { |
e9e43ec3 N |
1317 | /* This array is good-to-go. |
1318 | * If a reshape is in progress then we might need to | |
1319 | * continue monitoring it. In that case we start | |
1320 | * it read-only and let the grow code make it writable. | |
1321 | */ | |
1322 | int rv; | |
eb3929a4 | 1323 | #ifndef MDASSEMBLE |
e9e43ec3 N |
1324 | if (content->reshape_active && |
1325 | content->delta_disks <= 0) | |
1326 | rv = Grow_continue(mdfd, st, content, backup_file); | |
1327 | else | |
eb3929a4 | 1328 | #endif |
e9e43ec3 N |
1329 | rv = ioctl(mdfd, RUN_ARRAY, NULL); |
1330 | if (rv == 0) { | |
dab6685f NB |
1331 | if (verbose >= 0) { |
1332 | fprintf(stderr, Name ": %s has been started with %d drive%s", | |
1333 | mddev, okcnt, okcnt==1?"":"s"); | |
f21e18ca | 1334 | if (okcnt < (unsigned)content->array.raid_disks) |
98dbd966 | 1335 | fprintf(stderr, " (out of %d)", content->array.raid_disks); |
1ff98339 N |
1336 | if (rebuilding_cnt) |
1337 | fprintf(stderr, "%s %d rebuilding", sparecnt?",":" and", rebuilding_cnt); | |
dab6685f NB |
1338 | if (sparecnt) |
1339 | fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s"); | |
1340 | fprintf(stderr, ".\n"); | |
1341 | } | |
8a659c33 N |
1342 | if (content->reshape_active && |
1343 | content->array.level >= 4 && | |
1344 | content->array.level <= 6) { | |
acee8e89 N |
1345 | /* might need to increase the size |
1346 | * of the stripe cache - default is 256 | |
1347 | */ | |
8a659c33 | 1348 | if (256 < 4 * (content->array.chunk_size/4096)) { |
acee8e89 N |
1349 | struct mdinfo *sra = sysfs_read(mdfd, 0, 0); |
1350 | if (sra) | |
1351 | sysfs_set_num(sra, NULL, | |
1352 | "stripe_cache_size", | |
8a659c33 | 1353 | (4 * content->array.chunk_size / 4096) + 1); |
acee8e89 N |
1354 | } |
1355 | } | |
7e83544b N |
1356 | if (okcnt < (unsigned)content->array.raid_disks) { |
1357 | /* If any devices did not get added | |
1358 | * because the kernel rejected them based | |
1359 | * on event count, try adding them | |
1360 | * again providing the action policy is | |
1361 | * 're-add' or greater. The bitmap | |
1362 | * might allow them to be included, or | |
1363 | * they will become spares. | |
1364 | */ | |
1365 | for (i = 0; i <= bestcnt; i++) { | |
1366 | int j = best[i]; | |
1367 | if (j >= 0 && !devices[j].uptodate) { | |
1368 | if (!disk_action_allows(&devices[j].i, st->ss->name, act_re_add)) | |
1369 | continue; | |
1370 | rv = add_disk(mdfd, st, content, | |
1371 | &devices[j].i); | |
1372 | if (rv == 0 && verbose >= 0) | |
1373 | fprintf(stderr, | |
1374 | Name ": %s has been re-added.\n", | |
1375 | devices[j].devname); | |
1376 | } | |
1377 | } | |
1378 | } | |
a7c6e3fb | 1379 | wait_for(mddev, mdfd); |
7f91af49 N |
1380 | close(mdfd); |
1381 | if (auto_assem) { | |
589395d6 | 1382 | int usecs = 1; |
589395d6 NB |
1383 | /* There is a nasty race with 'mdadm --monitor'. |
1384 | * If it opens this device before we close it, | |
1385 | * it gets an incomplete open on which IO | |
598f0d58 NB |
1386 | * doesn't work and the capacity is |
1387 | * wrong. | |
589395d6 NB |
1388 | * If we reopen (to check for layered devices) |
1389 | * before --monitor closes, we loose. | |
1390 | * | |
1391 | * So: wait upto 1 second for there to be | |
1392 | * a non-zero capacity. | |
1393 | */ | |
1394 | while (usecs < 1000) { | |
1395 | mdfd = open(mddev, O_RDONLY); | |
1396 | if (mdfd >= 0) { | |
beae1dfe NB |
1397 | unsigned long long size; |
1398 | if (get_dev_size(mdfd, NULL, &size) && | |
589395d6 NB |
1399 | size > 0) |
1400 | break; | |
1401 | close(mdfd); | |
1402 | } | |
1403 | usleep(usecs); | |
1404 | usecs <<= 1; | |
1405 | } | |
1406 | } | |
d7f7ebb7 | 1407 | free(devices); |
64c4757e | 1408 | return 0; |
82b27616 | 1409 | } |
682c7051 | 1410 | fprintf(stderr, Name ": failed to RUN_ARRAY %s: %s\n", |
64c4757e | 1411 | mddev, strerror(errno)); |
583315d9 | 1412 | |
98dbd966 DW |
1413 | if (!enough(content->array.level, content->array.raid_disks, |
1414 | content->array.layout, 1, avail, okcnt)) | |
583315d9 NB |
1415 | fprintf(stderr, Name ": Not enough devices to " |
1416 | "start the array.\n"); | |
98dbd966 DW |
1417 | else if (!enough(content->array.level, |
1418 | content->array.raid_disks, | |
1419 | content->array.layout, clean, | |
583315d9 NB |
1420 | avail, okcnt)) |
1421 | fprintf(stderr, Name ": Not enough devices to " | |
1422 | "start the array while not clean " | |
1423 | "- consider --force.\n"); | |
1424 | ||
7f91af49 | 1425 | if (auto_assem) |
1c203a4b | 1426 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1427 | close(mdfd); |
d7f7ebb7 | 1428 | free(devices); |
64c4757e NB |
1429 | return 1; |
1430 | } | |
82b27616 | 1431 | if (runstop == -1) { |
b8a8ccf9 | 1432 | fprintf(stderr, Name ": %s assembled from %d drive%s", |
52826846 | 1433 | mddev, okcnt, okcnt==1?"":"s"); |
f21e18ca | 1434 | if (okcnt != (unsigned)content->array.raid_disks) |
98dbd966 | 1435 | fprintf(stderr, " (out of %d)", content->array.raid_disks); |
b8a8ccf9 | 1436 | fprintf(stderr, ", but not started.\n"); |
7f91af49 | 1437 | close(mdfd); |
d7f7ebb7 | 1438 | free(devices); |
64c4757e | 1439 | return 0; |
82b27616 | 1440 | } |
4855f95c | 1441 | if (verbose >= -1) { |
dab6685f | 1442 | fprintf(stderr, Name ": %s assembled from %d drive%s", mddev, okcnt, okcnt==1?"":"s"); |
1ff98339 N |
1443 | if (rebuilding_cnt) |
1444 | fprintf(stderr, "%s %d rebuilding", sparecnt?", ":" and ", rebuilding_cnt); | |
dab6685f NB |
1445 | if (sparecnt) |
1446 | fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s"); | |
98dbd966 DW |
1447 | if (!enough(content->array.level, content->array.raid_disks, |
1448 | content->array.layout, 1, avail, okcnt)) | |
dab6685f | 1449 | fprintf(stderr, " - not enough to start the array.\n"); |
98dbd966 DW |
1450 | else if (!enough(content->array.level, |
1451 | content->array.raid_disks, | |
1452 | content->array.layout, clean, | |
583315d9 NB |
1453 | avail, okcnt)) |
1454 | fprintf(stderr, " - not enough to start the " | |
1455 | "array while not clean - consider " | |
1456 | "--force.\n"); | |
dab6685f | 1457 | else { |
f21e18ca | 1458 | if (req_cnt == (unsigned)content->array.raid_disks) |
dab6685f NB |
1459 | fprintf(stderr, " - need all %d to start it", req_cnt); |
1460 | else | |
98dbd966 | 1461 | fprintf(stderr, " - need %d of %d to start", req_cnt, content->array.raid_disks); |
dab6685f NB |
1462 | fprintf(stderr, " (use --run to insist).\n"); |
1463 | } | |
aa88f531 | 1464 | } |
7f91af49 | 1465 | if (auto_assem) |
1c203a4b | 1466 | ioctl(mdfd, STOP_ARRAY, NULL); |
56a8da69 | 1467 | close(mdfd); |
d7f7ebb7 | 1468 | free(devices); |
64c4757e | 1469 | return 1; |
82b27616 | 1470 | } else { |
52826846 NB |
1471 | /* The "chosen_drive" is a good choice, and if necessary, the superblock has |
1472 | * been updated to point to the current locations of devices. | |
1473 | * so we can just start the array | |
82b27616 | 1474 | */ |
cd29a5c8 | 1475 | unsigned long dev; |
213ee40b NB |
1476 | dev = makedev(devices[chosen_drive].i.disk.major, |
1477 | devices[chosen_drive].i.disk.minor); | |
82b27616 NB |
1478 | if (ioctl(mdfd, START_ARRAY, dev)) { |
1479 | fprintf(stderr, Name ": Cannot start array: %s\n", | |
1480 | strerror(errno)); | |
1481 | } | |
aba69144 | 1482 | |
64c4757e | 1483 | } |
7f91af49 | 1484 | close(mdfd); |
d7f7ebb7 | 1485 | free(devices); |
e0d19036 | 1486 | return 0; |
64c4757e | 1487 | } |
6234c63c DW |
1488 | |
1489 | #ifndef MDASSEMBLE | |
1490 | int assemble_container_content(struct supertype *st, int mdfd, | |
1491 | struct mdinfo *content, int runstop, | |
1492 | char *chosen_name, int verbose) | |
1493 | { | |
1494 | struct mdinfo *dev, *sra; | |
1495 | int working = 0, preexist = 0; | |
1496 | struct map_ent *map = NULL; | |
1497 | ||
1498 | sysfs_init(content, mdfd, 0); | |
1499 | ||
1500 | sra = sysfs_read(mdfd, 0, GET_VERSION); | |
1501 | if (sra == NULL || strcmp(sra->text_version, content->text_version) != 0) | |
4408ee76 N |
1502 | if (sysfs_set_array(content, md_get_version(mdfd)) != 0) { |
1503 | close(mdfd); | |
6234c63c | 1504 | return 1; |
4408ee76 | 1505 | } |
6234c63c DW |
1506 | if (sra) |
1507 | sysfs_free(sra); | |
1508 | ||
1509 | for (dev = content->devs; dev; dev = dev->next) | |
462906cd | 1510 | if (sysfs_add_disk(content, dev, 1) == 0) |
6234c63c DW |
1511 | working++; |
1512 | else if (errno == EEXIST) | |
1513 | preexist++; | |
4408ee76 N |
1514 | if (working == 0) { |
1515 | close(mdfd); | |
7cb2aa33 | 1516 | return 1;/* Nothing new, don't try to start */ |
8b4e5ea9 N |
1517 | } |
1518 | ||
1519 | map_update(&map, fd2devnum(mdfd), | |
1520 | content->text_version, | |
1521 | content->uuid, chosen_name); | |
1522 | ||
1523 | if (runstop > 0 || | |
6234c63c | 1524 | (working + preexist) >= content->array.working_disks) { |
bb50e5d3 | 1525 | int err; |
a714580e | 1526 | |
6234c63c DW |
1527 | switch(content->array.level) { |
1528 | case LEVEL_LINEAR: | |
1529 | case LEVEL_MULTIPATH: | |
1530 | case 0: | |
bb50e5d3 N |
1531 | err = sysfs_set_str(content, NULL, "array_state", |
1532 | "active"); | |
6234c63c DW |
1533 | break; |
1534 | default: | |
bb50e5d3 | 1535 | err = sysfs_set_str(content, NULL, "array_state", |
6234c63c DW |
1536 | "readonly"); |
1537 | /* start mdmon if needed. */ | |
bb50e5d3 N |
1538 | if (!err) { |
1539 | if (!mdmon_running(st->container_dev)) | |
1540 | start_mdmon(st->container_dev); | |
1541 | ping_monitor(devnum2devname(st->container_dev)); | |
1542 | } | |
6234c63c DW |
1543 | break; |
1544 | } | |
bb50e5d3 N |
1545 | if (!err) |
1546 | sysfs_set_safemode(content, content->safe_mode_delay); | |
6234c63c | 1547 | if (verbose >= 0) { |
bb50e5d3 N |
1548 | if (err) |
1549 | fprintf(stderr, Name | |
1550 | ": array %s now has %d devices", | |
1551 | chosen_name, working + preexist); | |
1552 | else | |
1553 | fprintf(stderr, Name | |
1554 | ": Started %s with %d devices", | |
1555 | chosen_name, working + preexist); | |
6234c63c DW |
1556 | if (preexist) |
1557 | fprintf(stderr, " (%d new)", working); | |
1558 | fprintf(stderr, "\n"); | |
1559 | } | |
bb50e5d3 | 1560 | if (!err) |
a7c6e3fb | 1561 | wait_for(chosen_name, mdfd); |
4408ee76 | 1562 | close(mdfd); |
7cb2aa33 | 1563 | return 0; |
6234c63c | 1564 | /* FIXME should have an O_EXCL and wait for read-auto */ |
7cb2aa33 | 1565 | } else { |
6234c63c DW |
1566 | if (verbose >= 0) |
1567 | fprintf(stderr, Name | |
1568 | ": %s assembled with %d devices but " | |
1569 | "not started\n", | |
1570 | chosen_name, working); | |
4408ee76 | 1571 | close(mdfd); |
7cb2aa33 N |
1572 | return 1; |
1573 | } | |
6234c63c DW |
1574 | } |
1575 | #endif | |
1576 |