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