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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 | |
88cef9b3 N |
438 | if (!ident_matches(ident, content, tst, |
439 | homehost, update, | |
440 | report_missmatch ? devname : NULL)) | |
441 | /* message already printed */; | |
442 | else if (is_member_busy(content->text_version)) { | |
443 | if (report_missmatch) | |
444 | fprintf(stderr, Name ": member %s in %s is already assembled\n", | |
445 | content->text_version, | |
446 | devname); | |
447 | } else | |
448 | break; | |
449 | } | |
450 | if (!content) { | |
f7ad3ccc | 451 | tmpdev->used = 2; |
88cef9b3 | 452 | goto loop; /* empty container */ |
fa031239 | 453 | } |
88cef9b3 | 454 | |
9008ed1c | 455 | st = tst; tst = NULL; |
4c1c3ad8 | 456 | if (!auto_assem && inargv && tmpdev->next != NULL) { |
9008ed1c N |
457 | fprintf(stderr, Name ": %s is a container, but is not " |
458 | "only device given: confused and aborting\n", | |
459 | devname); | |
460 | st->ss->free_super(st); | |
4e8d9f0a | 461 | dev_policy_free(pol); |
9008ed1c N |
462 | return 1; |
463 | } | |
7636b5a8 N |
464 | if (verbose > 0) |
465 | fprintf(stderr, Name ": found match on member %s in %s\n", | |
466 | content->text_version, devname); | |
bac0d92e | 467 | |
5083d66b N |
468 | /* make sure we finished the loop */ |
469 | tmpdev = NULL; | |
bac0d92e | 470 | goto loop; |
5083d66b | 471 | } else { |
bac0d92e | 472 | |
5083d66b N |
473 | content = &info; |
474 | memset(content, 0, sizeof(*content)); | |
475 | tst->ss->getinfo_super(tst, content, NULL); | |
476 | ||
477 | if (!ident_matches(ident, content, tst, | |
478 | homehost, update, | |
479 | report_missmatch ? devname : NULL)) | |
df37ffc0 | 480 | goto loop; |
5083d66b N |
481 | |
482 | if (st == NULL) | |
483 | st = dup_super(tst); | |
484 | if (st->minor_version == -1) | |
485 | st->minor_version = tst->minor_version; | |
486 | if (st->ss != tst->ss || | |
487 | st->minor_version != tst->minor_version || | |
488 | st->ss->compare_super(st, tst) != 0) { | |
489 | /* Some mismatch. If exactly one array matches this host, | |
490 | * we can resolve on that one. | |
491 | * Or, if we are auto assembling, we just ignore the second | |
492 | * for now. | |
493 | */ | |
494 | if (auto_assem) | |
495 | goto loop; | |
496 | if (homehost) { | |
497 | int first = st->ss->match_home(st, homehost); | |
498 | int last = tst->ss->match_home(tst, homehost); | |
499 | if (first != last && | |
500 | (first == 1 || last == 1)) { | |
501 | /* We can do something */ | |
502 | if (first) {/* just ignore this one */ | |
503 | if (report_missmatch) | |
504 | fprintf(stderr, Name ": %s misses out due to wrong homehost\n", | |
505 | devname); | |
506 | goto loop; | |
507 | } else { /* reject all those sofar */ | |
508 | struct mddev_dev *td; | |
509 | if (report_missmatch) | |
510 | fprintf(stderr, Name ": %s overrides previous devices due to good homehost\n", | |
511 | devname); | |
512 | for (td=devlist; td != tmpdev; td=td->next) | |
513 | if (td->used == 1) | |
514 | td->used = 0; | |
515 | tmpdev->used = 1; | |
516 | goto loop; | |
517 | } | |
83b6208e NB |
518 | } |
519 | } | |
5083d66b N |
520 | fprintf(stderr, Name ": superblock on %s doesn't match others - assembly aborted\n", |
521 | devname); | |
522 | tst->ss->free_super(tst); | |
523 | st->ss->free_super(st); | |
524 | dev_policy_free(pol); | |
525 | return 1; | |
83b6208e | 526 | } |
5083d66b | 527 | tmpdev->used = 1; |
64c4757e | 528 | } |
df37ffc0 | 529 | loop: |
4e8d9f0a N |
530 | dev_policy_free(pol); |
531 | pol = NULL; | |
3d2b16e7 NB |
532 | if (tst) |
533 | tst->ss->free_super(tst); | |
811e6cbe NB |
534 | } |
535 | ||
98dbd966 | 536 | if (!st || !st->sb || !content) |
c30e5369 N |
537 | return 2; |
538 | ||
05833051 | 539 | /* Now need to open the array device. Use create_mddev */ |
98dbd966 | 540 | if (content == &info) |
a5d85af7 | 541 | st->ss->getinfo_super(st, content, NULL); |
3d2c4fc7 | 542 | |
69207ff6 | 543 | trustworthy = FOREIGN; |
05833051 | 544 | name = content->name; |
745f72f6 N |
545 | switch (st->ss->match_home(st, homehost) |
546 | ?: st->ss->match_home(st, "any")) { | |
69207ff6 N |
547 | case 1: |
548 | trustworthy = LOCAL; | |
98dbd966 | 549 | name = strchr(content->name, ':'); |
69207ff6 N |
550 | if (name) |
551 | name++; | |
3d2c4fc7 | 552 | else |
98dbd966 | 553 | name = content->name; |
69207ff6 | 554 | break; |
c30e5369 | 555 | } |
05833051 | 556 | if (!auto_assem) |
aa7c284c | 557 | /* If the array is listed in mdadm.conf or on |
ac2ecf55 N |
558 | * command line, then we trust the name |
559 | * even if the array doesn't look local | |
560 | */ | |
561 | trustworthy = LOCAL; | |
562 | ||
05833051 | 563 | if (name[0] == 0 && |
98dbd966 DW |
564 | content->array.level == LEVEL_CONTAINER) { |
565 | name = content->text_version; | |
a4bc1720 N |
566 | trustworthy = METADATA; |
567 | } | |
0ac91628 N |
568 | |
569 | if (name[0] && trustworthy != LOCAL && | |
570 | ! require_homehost && | |
571 | conf_name_is_free(name)) | |
572 | trustworthy = LOCAL; | |
573 | ||
7cdc0872 N |
574 | if (trustworthy == LOCAL && |
575 | strchr(name, ':')) | |
576 | /* Ignore 'host:' prefix of name */ | |
577 | name = strchr(name, ':')+1; | |
578 | ||
a04d5763 N |
579 | mdfd = create_mddev(mddev, name, ident->autof, trustworthy, |
580 | chosen_name); | |
c30e5369 N |
581 | if (mdfd < 0) { |
582 | st->ss->free_super(st); | |
c30e5369 | 583 | if (auto_assem) |
60e1bc1a | 584 | goto try_again; |
c30e5369 N |
585 | return 1; |
586 | } | |
a04d5763 | 587 | mddev = chosen_name; |
c30e5369 N |
588 | vers = md_get_version(mdfd); |
589 | if (vers < 9000) { | |
590 | fprintf(stderr, Name ": Assemble requires driver version 0.90.0 or later.\n" | |
591 | " Upgrade your kernel or try --build\n"); | |
592 | close(mdfd); | |
593 | return 1; | |
594 | } | |
66afdfa9 | 595 | if (mddev_busy(fd2devnum(mdfd))) { |
c30e5369 N |
596 | fprintf(stderr, Name ": %s already active, cannot restart it!\n", |
597 | mddev); | |
598 | for (tmpdev = devlist ; | |
599 | tmpdev && tmpdev->used != 1; | |
600 | tmpdev = tmpdev->next) | |
601 | ; | |
602 | if (tmpdev && auto_assem) | |
603 | fprintf(stderr, Name ": %s needed for %s...\n", | |
604 | mddev, tmpdev->devname); | |
605 | close(mdfd); | |
606 | mdfd = -3; | |
607 | st->ss->free_super(st); | |
c30e5369 N |
608 | if (auto_assem) |
609 | goto try_again; | |
610 | return 1; | |
8a46fe84 | 611 | } |
c30e5369 | 612 | ioctl(mdfd, STOP_ARRAY, NULL); /* just incase it was started but has no content */ |
8a46fe84 | 613 | |
9008ed1c N |
614 | #ifndef MDASSEMBLE |
615 | if (content != &info) { | |
616 | /* This is a member of a container. Try starting the array. */ | |
617 | return assemble_container_content(st, mdfd, content, runstop, | |
618 | chosen_name, verbose); | |
619 | } | |
620 | #endif | |
811e6cbe | 621 | /* Ok, no bad inconsistancy, we can try updating etc */ |
bf4fb153 | 622 | bitmap_done = 0; |
6e46bf34 | 623 | content->update_private = NULL; |
d7f7ebb7 | 624 | devices = malloc(num_devs * sizeof(*devices)); |
02e7c5b7 | 625 | devmap = calloc(num_devs * content->array.raid_disks, 1); |
da6b5ca9 | 626 | for (tmpdev = devlist; tmpdev; tmpdev=tmpdev->next) if (tmpdev->used == 1) { |
811e6cbe NB |
627 | char *devname = tmpdev->devname; |
628 | struct stat stb; | |
5787fa49 | 629 | /* looks like a good enough match to update the super block if needed */ |
d1f1011b | 630 | #ifndef MDASSEMBLE |
5787fa49 | 631 | if (update) { |
811e6cbe | 632 | int dfd; |
4b1ac34b NB |
633 | /* prepare useful information in info structures */ |
634 | struct stat stb2; | |
3da92f27 | 635 | struct supertype *tst; |
1e2b2765 | 636 | int err; |
4b1ac34b | 637 | fstat(mdfd, &stb2); |
7d99579f NB |
638 | |
639 | if (strcmp(update, "uuid")==0 && | |
640 | !ident->uuid_set) { | |
641 | int rfd; | |
642 | if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 || | |
643 | read(rfd, ident->uuid, 16) != 16) { | |
644 | *(__u32*)(ident->uuid) = random(); | |
645 | *(__u32*)(ident->uuid+1) = random(); | |
646 | *(__u32*)(ident->uuid+2) = random(); | |
647 | *(__u32*)(ident->uuid+3) = random(); | |
648 | } | |
649 | if (rfd >= 0) close(rfd); | |
7d99579f | 650 | } |
811e6cbe NB |
651 | dfd = dev_open(devname, O_RDWR|O_EXCL); |
652 | ||
3da92f27 | 653 | tst = dup_super(st); |
9f22b13f N |
654 | if (dfd < 0 || tst->ss->load_super(tst, dfd, NULL) != 0) { |
655 | fprintf(stderr, Name ": cannot re-read metadata from %s - aborting\n", | |
656 | devname); | |
657 | if (dfd >= 0) | |
658 | close(dfd); | |
659 | close(mdfd); | |
d7f7ebb7 | 660 | free(devices); |
02e7c5b7 | 661 | free(devmap); |
9f22b13f N |
662 | return 1; |
663 | } | |
02e7c5b7 | 664 | tst->ss->getinfo_super(tst, content, devmap + devcnt * content->array.raid_disks); |
811e6cbe | 665 | |
98dbd966 DW |
666 | memcpy(content->uuid, ident->uuid, 16); |
667 | strcpy(content->name, ident->name); | |
668 | content->array.md_minor = minor(stb2.st_rdev); | |
811e6cbe | 669 | |
1e2b2765 N |
670 | if (strcmp(update, "byteorder") == 0) |
671 | err = 0; | |
672 | else | |
673 | err = tst->ss->update_super(tst, content, update, | |
674 | devname, verbose, | |
675 | ident->uuid_set, | |
676 | homehost); | |
677 | if (err < 0) { | |
678 | fprintf(stderr, | |
679 | Name ": --update=%s not understood" | |
680 | " for %s metadata\n", | |
681 | update, tst->ss->name); | |
682 | tst->ss->free_super(tst); | |
683 | free(tst); | |
684 | close(mdfd); | |
685 | close(dfd); | |
d7f7ebb7 | 686 | free(devices); |
02e7c5b7 | 687 | free(devmap); |
1e2b2765 N |
688 | return 1; |
689 | } | |
e5eac01f NB |
690 | if (strcmp(update, "uuid")==0 && |
691 | !ident->uuid_set) { | |
692 | ident->uuid_set = 1; | |
98dbd966 | 693 | memcpy(ident->uuid, content->uuid, 16); |
e5eac01f | 694 | } |
1e2b2765 | 695 | if (tst->ss->store_super(tst, dfd)) |
5787fa49 NB |
696 | fprintf(stderr, Name ": Could not re-write superblock on %s.\n", |
697 | devname); | |
1e2b2765 | 698 | close(dfd); |
8131b493 NB |
699 | |
700 | if (strcmp(update, "uuid")==0 && | |
bf4fb153 | 701 | ident->bitmap_fd >= 0 && !bitmap_done) { |
3da92f27 | 702 | if (bitmap_update_uuid(ident->bitmap_fd, |
98dbd966 | 703 | content->uuid, |
3da92f27 | 704 | tst->ss->swapuuid) != 0) |
bf4fb153 NB |
705 | fprintf(stderr, Name ": Could not update uuid on external bitmap.\n"); |
706 | else | |
707 | bitmap_done = 1; | |
708 | } | |
3da92f27 | 709 | tst->ss->free_super(tst); |
d1f1011b NB |
710 | } else |
711 | #endif | |
712 | { | |
30e1b9a5 | 713 | struct supertype *tst = dup_super(st); |
da6b5ca9 NB |
714 | int dfd; |
715 | dfd = dev_open(devname, O_RDWR|O_EXCL); | |
716 | ||
9f22b13f N |
717 | if (dfd < 0 || tst->ss->load_super(tst, dfd, NULL) != 0) { |
718 | fprintf(stderr, Name ": cannot re-read metadata from %s - aborting\n", | |
719 | devname); | |
720 | if (dfd >= 0) | |
721 | close(dfd); | |
722 | close(mdfd); | |
d7f7ebb7 | 723 | free(devices); |
02e7c5b7 | 724 | free(devmap); |
9f22b13f N |
725 | return 1; |
726 | } | |
02e7c5b7 | 727 | tst->ss->getinfo_super(tst, content, devmap + devcnt * content->array.raid_disks); |
3da92f27 | 728 | tst->ss->free_super(tst); |
da6b5ca9 | 729 | close(dfd); |
5787fa49 NB |
730 | } |
731 | ||
811e6cbe NB |
732 | stat(devname, &stb); |
733 | ||
dab6685f | 734 | if (verbose > 0) |
cd29a5c8 | 735 | fprintf(stderr, Name ": %s is identified as a member of %s, slot %d.\n", |
98dbd966 | 736 | devname, mddev, content->disk.raid_disk); |
64c4757e | 737 | devices[devcnt].devname = devname; |
64c4757e | 738 | devices[devcnt].uptodate = 0; |
98dbd966 | 739 | devices[devcnt].i = *content; |
213ee40b NB |
740 | devices[devcnt].i.disk.major = major(stb.st_rdev); |
741 | devices[devcnt].i.disk.minor = minor(stb.st_rdev); | |
64c4757e | 742 | if (most_recent < devcnt) { |
213ee40b NB |
743 | if (devices[devcnt].i.events |
744 | > devices[most_recent].i.events) | |
64c4757e NB |
745 | most_recent = devcnt; |
746 | } | |
df0d4ea0 | 747 | if (content->array.level == LEVEL_MULTIPATH) |
5787fa49 NB |
748 | /* with multipath, the raid_disk from the superblock is meaningless */ |
749 | i = devcnt; | |
750 | else | |
213ee40b | 751 | i = devices[devcnt].i.disk.raid_disk; |
308e1801 | 752 | if (i+1 == 0) { |
98dbd966 DW |
753 | if (nextspare < content->array.raid_disks) |
754 | nextspare = content->array.raid_disks; | |
308e1801 | 755 | i = nextspare++; |
08110d41 | 756 | } else { |
98dbd966 | 757 | if (i >= content->array.raid_disks && |
08110d41 NB |
758 | i >= nextspare) |
759 | nextspare = i+1; | |
308e1801 | 760 | } |
98c6faba | 761 | if (i < 10000) { |
56eedc1a | 762 | if (i >= bestcnt) { |
f21e18ca | 763 | int newbestcnt = i+10; |
56eedc1a | 764 | int *newbest = malloc(sizeof(int)*newbestcnt); |
f21e18ca | 765 | int c; |
56eedc1a NB |
766 | for (c=0; c < newbestcnt; c++) |
767 | if (c < bestcnt) | |
768 | newbest[c] = best[c]; | |
769 | else | |
770 | newbest[c] = -1; | |
771 | if (best)free(best); | |
772 | best = newbest; | |
773 | bestcnt = newbestcnt; | |
774 | } | |
6a255b69 | 775 | if (best[i] >=0 && |
213ee40b NB |
776 | devices[best[i]].i.events |
777 | == devices[devcnt].i.events | |
778 | && (devices[best[i]].i.disk.minor | |
779 | != devices[devcnt].i.disk.minor) | |
b8ac1967 | 780 | && st->ss == &super0 |
98dbd966 | 781 | && content->array.level != LEVEL_MULTIPATH) { |
6a255b69 NB |
782 | /* two different devices with identical superblock. |
783 | * Could be a mis-detection caused by overlapping | |
784 | * partitions. fail-safe. | |
785 | */ | |
786 | fprintf(stderr, Name ": WARNING %s and %s appear" | |
787 | " to have very similar superblocks.\n" | |
788 | " If they are really different, " | |
789 | "please --zero the superblock on one\n" | |
d2df86e0 NB |
790 | " If they are the same or overlap," |
791 | " please remove one from %s.\n", | |
792 | devices[best[i]].devname, devname, | |
793 | inargv ? "the list" : | |
794 | "the\n DEVICE list in mdadm.conf" | |
795 | ); | |
7f91af49 | 796 | close(mdfd); |
d7f7ebb7 | 797 | free(devices); |
02e7c5b7 | 798 | free(devmap); |
6a255b69 NB |
799 | return 1; |
800 | } | |
52826846 | 801 | if (best[i] == -1 |
213ee40b NB |
802 | || (devices[best[i]].i.events |
803 | < devices[devcnt].i.events)) | |
52826846 | 804 | best[i] = devcnt; |
56eedc1a | 805 | } |
64c4757e | 806 | devcnt++; |
df37ffc0 | 807 | } |
6e46bf34 DW |
808 | free(content->update_private); |
809 | content->update_private = NULL; | |
4b1ac34b | 810 | |
64c4757e | 811 | if (devcnt == 0) { |
682c7051 | 812 | fprintf(stderr, Name ": no devices found for %s\n", |
64c4757e | 813 | mddev); |
3d2b16e7 NB |
814 | if (st) |
815 | st->ss->free_super(st); | |
7f91af49 | 816 | close(mdfd); |
d7f7ebb7 | 817 | free(devices); |
02e7c5b7 | 818 | free(devmap); |
64c4757e NB |
819 | return 1; |
820 | } | |
4b1ac34b | 821 | |
3d2b16e7 NB |
822 | if (update && strcmp(update, "byteorder")==0) |
823 | st->minor_version = 90; | |
824 | ||
a5d85af7 | 825 | st->ss->getinfo_super(st, content, NULL); |
98dbd966 | 826 | clean = content->array.state & 1; |
4b1ac34b | 827 | |
64c4757e NB |
828 | /* now we have some devices that might be suitable. |
829 | * I wonder how many | |
830 | */ | |
98dbd966 DW |
831 | avail = malloc(content->array.raid_disks); |
832 | memset(avail, 0, content->array.raid_disks); | |
64c4757e | 833 | okcnt = 0; |
52826846 | 834 | sparecnt=0; |
1ff98339 | 835 | rebuilding_cnt=0; |
f21e18ca | 836 | for (i=0; i< bestcnt; i++) { |
64c4757e | 837 | int j = best[i]; |
ee04451c NB |
838 | int event_margin = 1; /* always allow a difference of '1' |
839 | * like the kernel does | |
840 | */ | |
64c4757e | 841 | if (j < 0) continue; |
d013a55e NB |
842 | /* note: we ignore error flags in multipath arrays |
843 | * as they don't make sense | |
844 | */ | |
df0d4ea0 | 845 | if (content->array.level != LEVEL_MULTIPATH) |
f22385f9 | 846 | if (!(devices[j].i.disk.state & (1<<MD_DISK_ACTIVE))) { |
213ee40b NB |
847 | if (!(devices[j].i.disk.state |
848 | & (1<<MD_DISK_FAULTY))) | |
aa88f531 | 849 | sparecnt++; |
d013a55e | 850 | continue; |
aa88f531 | 851 | } |
02e7c5b7 N |
852 | /* If this devices thinks that 'most_recent' has failed, then |
853 | * we must reject this device. | |
854 | */ | |
855 | if (j != most_recent && | |
856 | content->array.raid_disks > 0 && | |
857 | devices[most_recent].i.disk.raid_disk >= 0 && | |
858 | devmap[j * content->array.raid_disks + devices[most_recent].i.disk.raid_disk] == 0) { | |
859 | if (verbose > -1) | |
860 | fprintf(stderr, Name ": ignoring %s as it reports %s as failed\n", | |
861 | devices[j].devname, devices[most_recent].devname); | |
862 | best[i] = -1; | |
863 | continue; | |
864 | } | |
213ee40b NB |
865 | if (devices[j].i.events+event_margin >= |
866 | devices[most_recent].i.events) { | |
64c4757e | 867 | devices[j].uptodate = 1; |
1ff98339 | 868 | if (i < content->array.raid_disks) { |
dcc4210f DW |
869 | if (devices[j].i.recovery_start == MaxSector || |
870 | (content->reshape_active && | |
871 | j >= content->array.raid_disks - content->delta_disks)) { | |
1ff98339 N |
872 | okcnt++; |
873 | avail[i]=1; | |
874 | } else | |
875 | rebuilding_cnt++; | |
265e0f17 | 876 | } else |
52826846 | 877 | sparecnt++; |
64c4757e NB |
878 | } |
879 | } | |
02e7c5b7 | 880 | free(devmap); |
98dbd966 DW |
881 | while (force && !enough(content->array.level, content->array.raid_disks, |
882 | content->array.layout, 1, | |
265e0f17 | 883 | avail, okcnt)) { |
64c4757e NB |
884 | /* Choose the newest best drive which is |
885 | * not up-to-date, update the superblock | |
886 | * and add it. | |
887 | */ | |
52826846 | 888 | int fd; |
3da92f27 | 889 | struct supertype *tst; |
f21e18ca | 890 | unsigned long long current_events; |
cd29a5c8 | 891 | chosen_drive = -1; |
f21e18ca | 892 | for (i = 0; i < content->array.raid_disks && i < bestcnt; i++) { |
52826846 NB |
893 | int j = best[i]; |
894 | if (j>=0 && | |
895 | !devices[j].uptodate && | |
921d9e16 | 896 | devices[j].i.recovery_start == MaxSector && |
52826846 | 897 | (chosen_drive < 0 || |
213ee40b NB |
898 | devices[j].i.events |
899 | > devices[chosen_drive].i.events)) | |
52826846 NB |
900 | chosen_drive = j; |
901 | } | |
902 | if (chosen_drive < 0) | |
903 | break; | |
213ee40b | 904 | current_events = devices[chosen_drive].i.events; |
c5a6f9a6 | 905 | add_another: |
dab6685f NB |
906 | if (verbose >= 0) |
907 | fprintf(stderr, Name ": forcing event count in %s(%d) from %d upto %d\n", | |
213ee40b NB |
908 | devices[chosen_drive].devname, |
909 | devices[chosen_drive].i.disk.raid_disk, | |
910 | (int)(devices[chosen_drive].i.events), | |
911 | (int)(devices[most_recent].i.events)); | |
8b0dabea | 912 | fd = dev_open(devices[chosen_drive].devname, O_RDWR|O_EXCL); |
52826846 NB |
913 | if (fd < 0) { |
914 | fprintf(stderr, Name ": Couldn't open %s for write - not updating\n", | |
915 | devices[chosen_drive].devname); | |
213ee40b | 916 | devices[chosen_drive].i.events = 0; |
52826846 NB |
917 | continue; |
918 | } | |
3da92f27 | 919 | tst = dup_super(st); |
60b435db | 920 | if (tst->ss->load_super(tst,fd, NULL)) { |
52826846 NB |
921 | close(fd); |
922 | fprintf(stderr, Name ": RAID superblock disappeared from %s - not updating.\n", | |
923 | devices[chosen_drive].devname); | |
213ee40b | 924 | devices[chosen_drive].i.events = 0; |
52826846 NB |
925 | continue; |
926 | } | |
98dbd966 DW |
927 | content->events = devices[most_recent].i.events; |
928 | tst->ss->update_super(tst, content, "force-one", | |
67a8c82d NB |
929 | devices[chosen_drive].devname, verbose, |
930 | 0, NULL); | |
4b1ac34b | 931 | |
3da92f27 | 932 | if (tst->ss->store_super(tst, fd)) { |
52826846 NB |
933 | close(fd); |
934 | fprintf(stderr, Name ": Could not re-write superblock on %s\n", | |
935 | devices[chosen_drive].devname); | |
213ee40b | 936 | devices[chosen_drive].i.events = 0; |
3da92f27 | 937 | tst->ss->free_super(tst); |
52826846 NB |
938 | continue; |
939 | } | |
940 | close(fd); | |
213ee40b | 941 | devices[chosen_drive].i.events = devices[most_recent].i.events; |
52826846 | 942 | devices[chosen_drive].uptodate = 1; |
265e0f17 | 943 | avail[chosen_drive] = 1; |
52826846 | 944 | okcnt++; |
3da92f27 | 945 | tst->ss->free_super(tst); |
c5a6f9a6 NB |
946 | |
947 | /* If there are any other drives of the same vintage, | |
948 | * add them in as well. We can't lose and we might gain | |
949 | */ | |
f21e18ca | 950 | for (i = 0; i < content->array.raid_disks && i < bestcnt ; i++) { |
c5a6f9a6 NB |
951 | int j = best[i]; |
952 | if (j >= 0 && | |
953 | !devices[j].uptodate && | |
213ee40b | 954 | devices[j].i.events == current_events) { |
c5a6f9a6 NB |
955 | chosen_drive = j; |
956 | goto add_another; | |
957 | } | |
958 | } | |
64c4757e | 959 | } |
52826846 NB |
960 | |
961 | /* Now we want to look at the superblock which the kernel will base things on | |
962 | * and compare the devices that we think are working with the devices that the | |
963 | * superblock thinks are working. | |
964 | * If there are differences and --force is given, then update this chosen | |
965 | * superblock. | |
966 | */ | |
cd29a5c8 | 967 | chosen_drive = -1; |
3da92f27 | 968 | st->ss->free_super(st); |
56eedc1a | 969 | for (i=0; chosen_drive < 0 && i<bestcnt; i++) { |
52826846 NB |
970 | int j = best[i]; |
971 | int fd; | |
4b1ac34b | 972 | |
52826846 NB |
973 | if (j<0) |
974 | continue; | |
975 | if (!devices[j].uptodate) | |
976 | continue; | |
977 | chosen_drive = j; | |
8b0dabea | 978 | if ((fd=dev_open(devices[j].devname, O_RDONLY|O_EXCL))< 0) { |
52826846 NB |
979 | fprintf(stderr, Name ": Cannot open %s: %s\n", |
980 | devices[j].devname, strerror(errno)); | |
7f91af49 | 981 | close(mdfd); |
d7f7ebb7 | 982 | free(devices); |
52826846 NB |
983 | return 1; |
984 | } | |
3da92f27 | 985 | if (st->ss->load_super(st,fd, NULL)) { |
52826846 NB |
986 | close(fd); |
987 | fprintf(stderr, Name ": RAID superblock has disappeared from %s\n", | |
988 | devices[j].devname); | |
7f91af49 | 989 | close(mdfd); |
d7f7ebb7 | 990 | free(devices); |
52826846 NB |
991 | return 1; |
992 | } | |
993 | close(fd); | |
994 | } | |
3da92f27 | 995 | if (st->sb == NULL) { |
4b1ac34b | 996 | fprintf(stderr, Name ": No suitable drives found for %s\n", mddev); |
7f91af49 | 997 | close(mdfd); |
d7f7ebb7 | 998 | free(devices); |
4b1ac34b NB |
999 | return 1; |
1000 | } | |
a5d85af7 | 1001 | st->ss->getinfo_super(st, content, NULL); |
f35f2525 | 1002 | #ifndef MDASSEMBLE |
98dbd966 | 1003 | sysfs_init(content, mdfd, 0); |
f35f2525 | 1004 | #endif |
56eedc1a | 1005 | for (i=0; i<bestcnt; i++) { |
52826846 | 1006 | int j = best[i]; |
98c6faba | 1007 | unsigned int desired_state; |
11a3e71d | 1008 | |
98dbd966 | 1009 | if (i < content->array.raid_disks) |
11a3e71d NB |
1010 | desired_state = (1<<MD_DISK_ACTIVE) | (1<<MD_DISK_SYNC); |
1011 | else | |
1012 | desired_state = 0; | |
1013 | ||
52826846 NB |
1014 | if (j<0) |
1015 | continue; | |
1016 | if (!devices[j].uptodate) | |
1017 | continue; | |
4b1ac34b | 1018 | |
213ee40b | 1019 | devices[j].i.disk.state = desired_state; |
4e9a6ff7 N |
1020 | if (!(devices[j].i.array.state & 1)) |
1021 | clean = 0; | |
213ee40b NB |
1022 | |
1023 | if (st->ss->update_super(st, &devices[j].i, "assemble", NULL, | |
68c7d6d7 | 1024 | verbose, 0, NULL)) { |
52826846 | 1025 | if (force) { |
dab6685f NB |
1026 | if (verbose >= 0) |
1027 | fprintf(stderr, Name ": " | |
1028 | "clearing FAULTY flag for device %d in %s for %s\n", | |
1029 | j, mddev, devices[j].devname); | |
4b1ac34b | 1030 | change = 1; |
52826846 | 1031 | } else { |
dab6685f NB |
1032 | if (verbose >= -1) |
1033 | fprintf(stderr, Name ": " | |
1034 | "device %d in %s has wrong state in superblock, but %s seems ok\n", | |
1035 | i, mddev, devices[j].devname); | |
52826846 NB |
1036 | } |
1037 | } | |
4b1ac34b | 1038 | #if 0 |
213ee40b | 1039 | if (!(super.disks[i].i.disk.state & (1 << MD_DISK_FAULTY))) { |
52826846 NB |
1040 | fprintf(stderr, Name ": devices %d of %s is not marked FAULTY in superblock, but cannot be found\n", |
1041 | i, mddev); | |
1042 | } | |
4b1ac34b | 1043 | #endif |
52826846 | 1044 | } |
c5a6f9a6 | 1045 | if (force && !clean && |
98dbd966 DW |
1046 | !enough(content->array.level, content->array.raid_disks, |
1047 | content->array.layout, clean, | |
c5a6f9a6 | 1048 | avail, okcnt)) { |
98dbd966 | 1049 | change += st->ss->update_super(st, content, "force-array", |
67a8c82d NB |
1050 | devices[chosen_drive].devname, verbose, |
1051 | 0, NULL); | |
583315d9 | 1052 | clean = 1; |
d013a55e | 1053 | } |
52826846 | 1054 | |
4b1ac34b | 1055 | if (change) { |
52826846 | 1056 | int fd; |
8b0dabea | 1057 | fd = dev_open(devices[chosen_drive].devname, O_RDWR|O_EXCL); |
52826846 | 1058 | if (fd < 0) { |
353632d9 | 1059 | fprintf(stderr, Name ": Could not open %s for write - cannot Assemble array.\n", |
52826846 | 1060 | devices[chosen_drive].devname); |
7f91af49 | 1061 | close(mdfd); |
d7f7ebb7 | 1062 | free(devices); |
52826846 NB |
1063 | return 1; |
1064 | } | |
3da92f27 | 1065 | if (st->ss->store_super(st, fd)) { |
52826846 NB |
1066 | close(fd); |
1067 | fprintf(stderr, Name ": Could not re-write superblock on %s\n", | |
1068 | devices[chosen_drive].devname); | |
7f91af49 | 1069 | close(mdfd); |
d7f7ebb7 | 1070 | free(devices); |
52826846 NB |
1071 | return 1; |
1072 | } | |
1073 | close(fd); | |
52826846 NB |
1074 | } |
1075 | ||
353632d9 NB |
1076 | /* If we are in the middle of a reshape we may need to restore saved data |
1077 | * that was moved aside due to the reshape overwriting live data | |
1078 | * The code of doing this lives in Grow.c | |
1079 | */ | |
39c5a909 | 1080 | #ifndef MDASSEMBLE |
98dbd966 | 1081 | if (content->reshape_active) { |
353632d9 NB |
1082 | int err = 0; |
1083 | int *fdlist = malloc(sizeof(int)* bestcnt); | |
cd77ac4e | 1084 | if (verbose > 0) |
ea0ebe96 N |
1085 | fprintf(stderr, Name ":%s has an active reshape - checking " |
1086 | "if critical section needs to be restored\n", | |
1087 | chosen_name); | |
353632d9 NB |
1088 | for (i=0; i<bestcnt; i++) { |
1089 | int j = best[i]; | |
1090 | if (j >= 0) { | |
1091 | fdlist[i] = dev_open(devices[j].devname, O_RDWR|O_EXCL); | |
1092 | if (fdlist[i] < 0) { | |
1093 | fprintf(stderr, Name ": Could not open %s for write - cannot Assemble array.\n", | |
1094 | devices[j].devname); | |
1095 | err = 1; | |
1096 | break; | |
1097 | } | |
1098 | } else | |
1099 | fdlist[i] = -1; | |
1100 | } | |
87f26d14 N |
1101 | if (!err) { |
1102 | err = Grow_restart(st, content, fdlist, bestcnt, | |
1103 | backup_file, verbose > 0); | |
1104 | if (err && invalid_backup) { | |
1105 | if (verbose > 0) | |
1106 | fprintf(stderr, Name ": continuing" | |
1107 | " without restoring backup\n"); | |
1108 | err = 0; | |
1109 | } | |
1110 | } | |
353632d9 NB |
1111 | while (i>0) { |
1112 | i--; | |
1113 | if (fdlist[i]>=0) close(fdlist[i]); | |
1114 | } | |
1115 | if (err) { | |
1116 | fprintf(stderr, Name ": Failed to restore critical section for reshape, sorry.\n"); | |
e9e43ec3 N |
1117 | if (backup_file == NULL) |
1118 | fprintf(stderr," Possibly you needed to specify the --backup-file\n"); | |
7f91af49 | 1119 | close(mdfd); |
d7f7ebb7 | 1120 | free(devices); |
353632d9 NB |
1121 | return err; |
1122 | } | |
1123 | } | |
39c5a909 | 1124 | #endif |
aa88f531 NB |
1125 | /* count number of in-sync devices according to the superblock. |
1126 | * We must have this number to start the array without -s or -R | |
1127 | */ | |
98dbd966 | 1128 | req_cnt = content->array.working_disks; |
aa88f531 | 1129 | |
64c4757e NB |
1130 | /* Almost ready to actually *do* something */ |
1131 | if (!old_linux) { | |
fbf8a0b7 | 1132 | int rv; |
a19c88b8 | 1133 | |
a04d5763 N |
1134 | /* First, fill in the map, so that udev can find our name |
1135 | * as soon as we become active. | |
1136 | */ | |
98dbd966 DW |
1137 | map_update(NULL, fd2devnum(mdfd), content->text_version, |
1138 | content->uuid, chosen_name); | |
a04d5763 | 1139 | |
98dbd966 | 1140 | rv = set_array_info(mdfd, st, content); |
fbf8a0b7 | 1141 | if (rv) { |
f35f2525 | 1142 | fprintf(stderr, Name ": failed to set array info for %s: %s\n", |
64c4757e | 1143 | mddev, strerror(errno)); |
24af7a87 | 1144 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1145 | close(mdfd); |
d7f7ebb7 | 1146 | free(devices); |
64c4757e NB |
1147 | return 1; |
1148 | } | |
11484a63 | 1149 | if (ident->bitmap_fd >= 0) { |
c82f047c NB |
1150 | if (ioctl(mdfd, SET_BITMAP_FILE, ident->bitmap_fd) != 0) { |
1151 | fprintf(stderr, Name ": SET_BITMAP_FILE failed.\n"); | |
24af7a87 | 1152 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1153 | close(mdfd); |
d7f7ebb7 | 1154 | free(devices); |
c82f047c NB |
1155 | return 1; |
1156 | } | |
7ef02d01 NB |
1157 | } else if (ident->bitmap_file) { |
1158 | /* From config file */ | |
1159 | int bmfd = open(ident->bitmap_file, O_RDWR); | |
1160 | if (bmfd < 0) { | |
1161 | fprintf(stderr, Name ": Could not open bitmap file %s\n", | |
1162 | ident->bitmap_file); | |
24af7a87 | 1163 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1164 | close(mdfd); |
d7f7ebb7 | 1165 | free(devices); |
7ef02d01 NB |
1166 | return 1; |
1167 | } | |
1168 | if (ioctl(mdfd, SET_BITMAP_FILE, bmfd) != 0) { | |
1169 | fprintf(stderr, Name ": Failed to set bitmapfile for %s\n", mddev); | |
1170 | close(bmfd); | |
24af7a87 | 1171 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1172 | close(mdfd); |
d7f7ebb7 | 1173 | free(devices); |
7ef02d01 NB |
1174 | return 1; |
1175 | } | |
1176 | close(bmfd); | |
c82f047c | 1177 | } |
7ef02d01 | 1178 | |
52826846 | 1179 | /* First, add the raid disks, but add the chosen one last */ |
56eedc1a | 1180 | for (i=0; i<= bestcnt; i++) { |
52826846 | 1181 | int j; |
56eedc1a | 1182 | if (i < bestcnt) { |
52826846 NB |
1183 | j = best[i]; |
1184 | if (j == chosen_drive) | |
1185 | continue; | |
1186 | } else | |
1187 | j = chosen_drive; | |
1188 | ||
56eedc1a | 1189 | if (j >= 0 /* && devices[j].uptodate */) { |
484ae54d N |
1190 | int dfd = dev_open(devices[j].devname, |
1191 | O_RDWR|O_EXCL); | |
1192 | if (dfd >= 0) { | |
1193 | remove_partitions(dfd); | |
1194 | close(dfd); | |
1195 | } | |
98dbd966 | 1196 | rv = add_disk(mdfd, st, content, &devices[j].i); |
7801ac20 | 1197 | |
a19c88b8 | 1198 | if (rv) { |
213ee40b NB |
1199 | fprintf(stderr, Name ": failed to add " |
1200 | "%s to %s: %s\n", | |
64c4757e NB |
1201 | devices[j].devname, |
1202 | mddev, | |
1203 | strerror(errno)); | |
98dbd966 | 1204 | if (i < content->array.raid_disks |
213ee40b | 1205 | || i == bestcnt) |
52826846 NB |
1206 | okcnt--; |
1207 | else | |
1208 | sparecnt--; | |
dab6685f | 1209 | } else if (verbose > 0) |
213ee40b NB |
1210 | fprintf(stderr, Name ": added %s " |
1211 | "to %s as %d\n", | |
1212 | devices[j].devname, mddev, | |
1213 | devices[j].i.disk.raid_disk); | |
98dbd966 | 1214 | } else if (verbose > 0 && i < content->array.raid_disks) |
213ee40b NB |
1215 | fprintf(stderr, Name ": no uptodate device for " |
1216 | "slot %d of %s\n", | |
64c4757e NB |
1217 | i, mddev); |
1218 | } | |
aba69144 | 1219 | |
98dbd966 | 1220 | if (content->array.level == LEVEL_CONTAINER) { |
598f0d58 NB |
1221 | if (verbose >= 0) { |
1222 | fprintf(stderr, Name ": Container %s has been " | |
1223 | "assembled with %d drive%s", | |
57ed8c91 | 1224 | mddev, okcnt+sparecnt, okcnt+sparecnt==1?"":"s"); |
f21e18ca | 1225 | if (okcnt < (unsigned)content->array.raid_disks) |
598f0d58 | 1226 | fprintf(stderr, " (out of %d)", |
98dbd966 | 1227 | content->array.raid_disks); |
598f0d58 NB |
1228 | fprintf(stderr, "\n"); |
1229 | } | |
98dbd966 | 1230 | sysfs_uevent(content, "change"); |
a7c6e3fb | 1231 | wait_for(chosen_name, mdfd); |
7f91af49 | 1232 | close(mdfd); |
d7f7ebb7 | 1233 | free(devices); |
598f0d58 NB |
1234 | return 0; |
1235 | } | |
1236 | ||
64c4757e | 1237 | if (runstop == 1 || |
b8a8ccf9 | 1238 | (runstop <= 0 && |
98dbd966 DW |
1239 | ( enough(content->array.level, content->array.raid_disks, |
1240 | content->array.layout, clean, avail, okcnt) && | |
1ff98339 | 1241 | (okcnt + rebuilding_cnt >= req_cnt || start_partial_ok) |
aa88f531 | 1242 | ))) { |
e9e43ec3 N |
1243 | /* This array is good-to-go. |
1244 | * If a reshape is in progress then we might need to | |
1245 | * continue monitoring it. In that case we start | |
1246 | * it read-only and let the grow code make it writable. | |
1247 | */ | |
1248 | int rv; | |
eb3929a4 | 1249 | #ifndef MDASSEMBLE |
e9e43ec3 N |
1250 | if (content->reshape_active && |
1251 | content->delta_disks <= 0) | |
1252 | rv = Grow_continue(mdfd, st, content, backup_file); | |
1253 | else | |
eb3929a4 | 1254 | #endif |
e9e43ec3 N |
1255 | rv = ioctl(mdfd, RUN_ARRAY, NULL); |
1256 | if (rv == 0) { | |
dab6685f NB |
1257 | if (verbose >= 0) { |
1258 | fprintf(stderr, Name ": %s has been started with %d drive%s", | |
1259 | mddev, okcnt, okcnt==1?"":"s"); | |
f21e18ca | 1260 | if (okcnt < (unsigned)content->array.raid_disks) |
98dbd966 | 1261 | fprintf(stderr, " (out of %d)", content->array.raid_disks); |
1ff98339 N |
1262 | if (rebuilding_cnt) |
1263 | fprintf(stderr, "%s %d rebuilding", sparecnt?",":" and", rebuilding_cnt); | |
dab6685f NB |
1264 | if (sparecnt) |
1265 | fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s"); | |
1266 | fprintf(stderr, ".\n"); | |
1267 | } | |
8a659c33 N |
1268 | if (content->reshape_active && |
1269 | content->array.level >= 4 && | |
1270 | content->array.level <= 6) { | |
acee8e89 N |
1271 | /* might need to increase the size |
1272 | * of the stripe cache - default is 256 | |
1273 | */ | |
8a659c33 | 1274 | if (256 < 4 * (content->array.chunk_size/4096)) { |
acee8e89 N |
1275 | struct mdinfo *sra = sysfs_read(mdfd, 0, 0); |
1276 | if (sra) | |
1277 | sysfs_set_num(sra, NULL, | |
1278 | "stripe_cache_size", | |
8a659c33 | 1279 | (4 * content->array.chunk_size / 4096) + 1); |
acee8e89 N |
1280 | } |
1281 | } | |
7e83544b N |
1282 | if (okcnt < (unsigned)content->array.raid_disks) { |
1283 | /* If any devices did not get added | |
1284 | * because the kernel rejected them based | |
1285 | * on event count, try adding them | |
1286 | * again providing the action policy is | |
1287 | * 're-add' or greater. The bitmap | |
1288 | * might allow them to be included, or | |
1289 | * they will become spares. | |
1290 | */ | |
1291 | for (i = 0; i <= bestcnt; i++) { | |
1292 | int j = best[i]; | |
1293 | if (j >= 0 && !devices[j].uptodate) { | |
1294 | if (!disk_action_allows(&devices[j].i, st->ss->name, act_re_add)) | |
1295 | continue; | |
1296 | rv = add_disk(mdfd, st, content, | |
1297 | &devices[j].i); | |
1298 | if (rv == 0 && verbose >= 0) | |
1299 | fprintf(stderr, | |
1300 | Name ": %s has been re-added.\n", | |
1301 | devices[j].devname); | |
1302 | } | |
1303 | } | |
1304 | } | |
a7c6e3fb | 1305 | wait_for(mddev, mdfd); |
7f91af49 N |
1306 | close(mdfd); |
1307 | if (auto_assem) { | |
589395d6 | 1308 | int usecs = 1; |
589395d6 NB |
1309 | /* There is a nasty race with 'mdadm --monitor'. |
1310 | * If it opens this device before we close it, | |
1311 | * it gets an incomplete open on which IO | |
598f0d58 NB |
1312 | * doesn't work and the capacity is |
1313 | * wrong. | |
589395d6 NB |
1314 | * If we reopen (to check for layered devices) |
1315 | * before --monitor closes, we loose. | |
1316 | * | |
1317 | * So: wait upto 1 second for there to be | |
1318 | * a non-zero capacity. | |
1319 | */ | |
1320 | while (usecs < 1000) { | |
1321 | mdfd = open(mddev, O_RDONLY); | |
1322 | if (mdfd >= 0) { | |
beae1dfe NB |
1323 | unsigned long long size; |
1324 | if (get_dev_size(mdfd, NULL, &size) && | |
589395d6 NB |
1325 | size > 0) |
1326 | break; | |
1327 | close(mdfd); | |
1328 | } | |
1329 | usleep(usecs); | |
1330 | usecs <<= 1; | |
1331 | } | |
1332 | } | |
d7f7ebb7 | 1333 | free(devices); |
64c4757e | 1334 | return 0; |
82b27616 | 1335 | } |
682c7051 | 1336 | fprintf(stderr, Name ": failed to RUN_ARRAY %s: %s\n", |
64c4757e | 1337 | mddev, strerror(errno)); |
583315d9 | 1338 | |
98dbd966 DW |
1339 | if (!enough(content->array.level, content->array.raid_disks, |
1340 | content->array.layout, 1, avail, okcnt)) | |
583315d9 NB |
1341 | fprintf(stderr, Name ": Not enough devices to " |
1342 | "start the array.\n"); | |
98dbd966 DW |
1343 | else if (!enough(content->array.level, |
1344 | content->array.raid_disks, | |
1345 | content->array.layout, clean, | |
583315d9 NB |
1346 | avail, okcnt)) |
1347 | fprintf(stderr, Name ": Not enough devices to " | |
1348 | "start the array while not clean " | |
1349 | "- consider --force.\n"); | |
1350 | ||
7f91af49 | 1351 | if (auto_assem) |
1c203a4b | 1352 | ioctl(mdfd, STOP_ARRAY, NULL); |
7f91af49 | 1353 | close(mdfd); |
d7f7ebb7 | 1354 | free(devices); |
64c4757e NB |
1355 | return 1; |
1356 | } | |
82b27616 | 1357 | if (runstop == -1) { |
b8a8ccf9 | 1358 | fprintf(stderr, Name ": %s assembled from %d drive%s", |
52826846 | 1359 | mddev, okcnt, okcnt==1?"":"s"); |
f21e18ca | 1360 | if (okcnt != (unsigned)content->array.raid_disks) |
98dbd966 | 1361 | fprintf(stderr, " (out of %d)", content->array.raid_disks); |
b8a8ccf9 | 1362 | fprintf(stderr, ", but not started.\n"); |
7f91af49 | 1363 | close(mdfd); |
d7f7ebb7 | 1364 | free(devices); |
64c4757e | 1365 | return 0; |
82b27616 | 1366 | } |
4855f95c | 1367 | if (verbose >= -1) { |
dab6685f | 1368 | fprintf(stderr, Name ": %s assembled from %d drive%s", mddev, okcnt, okcnt==1?"":"s"); |
1ff98339 N |
1369 | if (rebuilding_cnt) |
1370 | fprintf(stderr, "%s %d rebuilding", sparecnt?", ":" and ", rebuilding_cnt); | |
dab6685f NB |
1371 | if (sparecnt) |
1372 | fprintf(stderr, " and %d spare%s", sparecnt, sparecnt==1?"":"s"); | |
98dbd966 DW |
1373 | if (!enough(content->array.level, content->array.raid_disks, |
1374 | content->array.layout, 1, avail, okcnt)) | |
dab6685f | 1375 | fprintf(stderr, " - not enough to start the array.\n"); |
98dbd966 DW |
1376 | else if (!enough(content->array.level, |
1377 | content->array.raid_disks, | |
1378 | content->array.layout, clean, | |
583315d9 NB |
1379 | avail, okcnt)) |
1380 | fprintf(stderr, " - not enough to start the " | |
1381 | "array while not clean - consider " | |
1382 | "--force.\n"); | |
dab6685f | 1383 | else { |
f21e18ca | 1384 | if (req_cnt == (unsigned)content->array.raid_disks) |
dab6685f NB |
1385 | fprintf(stderr, " - need all %d to start it", req_cnt); |
1386 | else | |
98dbd966 | 1387 | fprintf(stderr, " - need %d of %d to start", req_cnt, content->array.raid_disks); |
dab6685f NB |
1388 | fprintf(stderr, " (use --run to insist).\n"); |
1389 | } | |
aa88f531 | 1390 | } |
7f91af49 | 1391 | if (auto_assem) |
1c203a4b | 1392 | ioctl(mdfd, STOP_ARRAY, NULL); |
56a8da69 | 1393 | close(mdfd); |
d7f7ebb7 | 1394 | free(devices); |
64c4757e | 1395 | return 1; |
82b27616 | 1396 | } else { |
52826846 NB |
1397 | /* The "chosen_drive" is a good choice, and if necessary, the superblock has |
1398 | * been updated to point to the current locations of devices. | |
1399 | * so we can just start the array | |
82b27616 | 1400 | */ |
cd29a5c8 | 1401 | unsigned long dev; |
213ee40b NB |
1402 | dev = makedev(devices[chosen_drive].i.disk.major, |
1403 | devices[chosen_drive].i.disk.minor); | |
82b27616 NB |
1404 | if (ioctl(mdfd, START_ARRAY, dev)) { |
1405 | fprintf(stderr, Name ": Cannot start array: %s\n", | |
1406 | strerror(errno)); | |
1407 | } | |
aba69144 | 1408 | |
64c4757e | 1409 | } |
7f91af49 | 1410 | close(mdfd); |
d7f7ebb7 | 1411 | free(devices); |
e0d19036 | 1412 | return 0; |
64c4757e | 1413 | } |
6234c63c DW |
1414 | |
1415 | #ifndef MDASSEMBLE | |
1416 | int assemble_container_content(struct supertype *st, int mdfd, | |
1417 | struct mdinfo *content, int runstop, | |
1418 | char *chosen_name, int verbose) | |
1419 | { | |
1420 | struct mdinfo *dev, *sra; | |
1421 | int working = 0, preexist = 0; | |
1422 | struct map_ent *map = NULL; | |
1423 | ||
1424 | sysfs_init(content, mdfd, 0); | |
1425 | ||
1426 | sra = sysfs_read(mdfd, 0, GET_VERSION); | |
1427 | if (sra == NULL || strcmp(sra->text_version, content->text_version) != 0) | |
4408ee76 N |
1428 | if (sysfs_set_array(content, md_get_version(mdfd)) != 0) { |
1429 | close(mdfd); | |
6234c63c | 1430 | return 1; |
4408ee76 | 1431 | } |
6234c63c DW |
1432 | if (sra) |
1433 | sysfs_free(sra); | |
1434 | ||
1435 | for (dev = content->devs; dev; dev = dev->next) | |
462906cd | 1436 | if (sysfs_add_disk(content, dev, 1) == 0) |
6234c63c DW |
1437 | working++; |
1438 | else if (errno == EEXIST) | |
1439 | preexist++; | |
4408ee76 N |
1440 | if (working == 0) { |
1441 | close(mdfd); | |
7cb2aa33 | 1442 | return 1;/* Nothing new, don't try to start */ |
8b4e5ea9 N |
1443 | } |
1444 | ||
1445 | map_update(&map, fd2devnum(mdfd), | |
1446 | content->text_version, | |
1447 | content->uuid, chosen_name); | |
1448 | ||
1449 | if (runstop > 0 || | |
6234c63c | 1450 | (working + preexist) >= content->array.working_disks) { |
bb50e5d3 | 1451 | int err; |
a714580e | 1452 | |
6234c63c DW |
1453 | switch(content->array.level) { |
1454 | case LEVEL_LINEAR: | |
1455 | case LEVEL_MULTIPATH: | |
1456 | case 0: | |
bb50e5d3 N |
1457 | err = sysfs_set_str(content, NULL, "array_state", |
1458 | "active"); | |
6234c63c DW |
1459 | break; |
1460 | default: | |
bb50e5d3 | 1461 | err = sysfs_set_str(content, NULL, "array_state", |
6234c63c DW |
1462 | "readonly"); |
1463 | /* start mdmon if needed. */ | |
bb50e5d3 N |
1464 | if (!err) { |
1465 | if (!mdmon_running(st->container_dev)) | |
1466 | start_mdmon(st->container_dev); | |
1467 | ping_monitor(devnum2devname(st->container_dev)); | |
1468 | } | |
6234c63c DW |
1469 | break; |
1470 | } | |
bb50e5d3 N |
1471 | if (!err) |
1472 | sysfs_set_safemode(content, content->safe_mode_delay); | |
6234c63c | 1473 | if (verbose >= 0) { |
bb50e5d3 N |
1474 | if (err) |
1475 | fprintf(stderr, Name | |
1476 | ": array %s now has %d devices", | |
1477 | chosen_name, working + preexist); | |
1478 | else | |
1479 | fprintf(stderr, Name | |
1480 | ": Started %s with %d devices", | |
1481 | chosen_name, working + preexist); | |
6234c63c DW |
1482 | if (preexist) |
1483 | fprintf(stderr, " (%d new)", working); | |
1484 | fprintf(stderr, "\n"); | |
1485 | } | |
bb50e5d3 | 1486 | if (!err) |
a7c6e3fb | 1487 | wait_for(chosen_name, mdfd); |
4408ee76 | 1488 | close(mdfd); |
7cb2aa33 | 1489 | return 0; |
6234c63c | 1490 | /* FIXME should have an O_EXCL and wait for read-auto */ |
7cb2aa33 | 1491 | } else { |
6234c63c DW |
1492 | if (verbose >= 0) |
1493 | fprintf(stderr, Name | |
1494 | ": %s assembled with %d devices but " | |
1495 | "not started\n", | |
1496 | chosen_name, working); | |
4408ee76 | 1497 | close(mdfd); |
7cb2aa33 N |
1498 | return 1; |
1499 | } | |
6234c63c DW |
1500 | } |
1501 | #endif | |
1502 |