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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 | * |
4f589ad0 | 4 | * Copyright (C) 2001-2006 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 | |
22 | * Email: <neilb@cse.unsw.edu.au> | |
23 | * Paper: Neil Brown | |
24 | * School of Computer Science and Engineering | |
25 | * The University of New South Wales | |
26 | * Sydney, 2052 | |
27 | * Australia | |
28 | */ | |
29 | ||
9a9dab36 | 30 | #include "mdadm.h" |
682c7051 NB |
31 | #include "md_u.h" |
32 | #include "md_p.h" | |
60248f74 | 33 | #include <ctype.h> |
64c4757e | 34 | |
82d9eba6 | 35 | int Create(struct supertype *st, char *mddev, int mdfd, |
5dd497ee | 36 | int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, |
3d3dd91e | 37 | char *name, char *homehost, int *uuid, |
cd29a5c8 | 38 | int subdevs, mddev_dev_t devlist, |
47d79ef8 | 39 | int runstop, int verbose, int force, int assume_clean, |
dfd4d8ee | 40 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay) |
64c4757e | 41 | { |
682c7051 NB |
42 | /* |
43 | * Create a new raid array. | |
44 | * | |
45 | * First check that necessary details are available | |
46 | * (i.e. level, raid-disks) | |
47 | * | |
48 | * Then check each disk to see what might be on it | |
49 | * and report anything interesting. | |
50 | * | |
51 | * If anything looks odd, and runstop not set, | |
52 | * abort. | |
53 | * | |
54 | * SET_ARRAY_INFO and ADD_NEW_DISK, and | |
82d9eba6 | 55 | * if runstop==run, or raiddisks disks were used, |
682c7051 NB |
56 | * RUN_ARRAY |
57 | */ | |
b5e64645 | 58 | unsigned long long minsize=0, maxsize=0; |
cd29a5c8 NB |
59 | char *mindisc = NULL; |
60 | char *maxdisc = NULL; | |
c913b90e | 61 | int dnum; |
cd29a5c8 | 62 | mddev_dev_t dv; |
682c7051 | 63 | int fail=0, warn=0; |
82b27616 | 64 | struct stat stb; |
82d9eba6 | 65 | int first_missing = subdevs * 2; |
6fb79233 | 66 | int second_missing = subdevs * 2; |
52826846 | 67 | int missing_disks = 0; |
82d9eba6 | 68 | int insert_point = subdevs * 2; /* where to insert a missing drive */ |
4b1ac34b | 69 | int pass; |
82d9eba6 NB |
70 | int vers; |
71 | int rv; | |
c82f047c | 72 | int bitmap_fd; |
f9c25f1d | 73 | unsigned long long bitmapsize; |
d03373f1 | 74 | struct mdinfo *sra; |
06c7f68e | 75 | struct mdinfo info; |
682c7051 | 76 | |
943eafef | 77 | int major_num = BITMAP_MAJOR_HI; |
dcec9ee5 | 78 | |
06c7f68e | 79 | memset(&info, 0, sizeof(info)); |
29e766a5 | 80 | |
82d9eba6 NB |
81 | vers = md_get_version(mdfd); |
82 | if (vers < 9000) { | |
dd0781e5 | 83 | fprintf(stderr, Name ": Create requires md driver version 0.90.0 or later\n"); |
52826846 | 84 | return 1; |
32e5a4ee DL |
85 | } else { |
86 | mdu_array_info_t inf; | |
87 | memset(&inf, 0, sizeof(inf)); | |
88 | ioctl(mdfd, GET_ARRAY_INFO, &inf); | |
89 | if (inf.working_disks != 0) { | |
90 | fprintf(stderr, Name ": another array by this name" | |
91 | " is already running.\n"); | |
92 | return 1; | |
93 | } | |
682c7051 | 94 | } |
a322f70c DW |
95 | if (level == UnSet) { |
96 | /* "ddf" metadata only supports one level - should possibly | |
97 | * push this into metadata handler?? | |
98 | */ | |
99 | if (st && st->ss == &super_ddf) | |
100 | level = LEVEL_CONTAINER; | |
101 | } | |
102 | ||
98c6faba | 103 | if (level == UnSet) { |
682c7051 NB |
104 | fprintf(stderr, |
105 | Name ": a RAID level is needed to create an array.\n"); | |
106 | return 1; | |
107 | } | |
98c6faba NB |
108 | if (raiddisks < 4 && level == 6) { |
109 | fprintf(stderr, | |
110 | Name ": at least 4 raid-devices needed for level 6\n"); | |
111 | return 1; | |
112 | } | |
113 | if (raiddisks > 256 && level == 6) { | |
114 | fprintf(stderr, | |
115 | Name ": no more than 256 raid-devices supported for level 6\n"); | |
116 | return 1; | |
117 | } | |
52826846 NB |
118 | if (raiddisks < 2 && level >= 4) { |
119 | fprintf(stderr, | |
98c6faba | 120 | Name ": at least 2 raid-devices needed for level 4 or 5\n"); |
52826846 NB |
121 | return 1; |
122 | } | |
570510ba NB |
123 | if (level <= 0 && sparedisks) { |
124 | fprintf(stderr, | |
125 | Name ": This level does not support spare devices\n"); | |
126 | return 1; | |
127 | } | |
682c7051 | 128 | if (subdevs > raiddisks+sparedisks) { |
b83d95f3 | 129 | fprintf(stderr, Name ": You have listed more devices (%d) than are in the array(%d)!\n", subdevs, raiddisks+sparedisks); |
52826846 | 130 | return 1; |
682c7051 | 131 | } |
cd29a5c8 | 132 | if (subdevs < raiddisks+sparedisks) { |
52826846 NB |
133 | fprintf(stderr, Name ": You haven't given enough devices (real or missing) to create this array\n"); |
134 | return 1; | |
135 | } | |
5b28bd56 NB |
136 | if (bitmap_file && level <= 0) { |
137 | fprintf(stderr, Name ": bitmaps not meaningful with level %s\n", | |
138 | map_num(pers, level)?:"given"); | |
139 | return 1; | |
140 | } | |
52826846 | 141 | |
682c7051 | 142 | /* now set some defaults */ |
98c6faba | 143 | if (layout == UnSet) |
682c7051 NB |
144 | switch(level) { |
145 | default: /* no layout */ | |
146 | layout = 0; | |
147 | break; | |
e5329c37 NB |
148 | case 10: |
149 | layout = 0x102; /* near=2, far=1 */ | |
dab6685f | 150 | if (verbose > 0) |
e5329c37 NB |
151 | fprintf(stderr, |
152 | Name ": layout defaults to n1\n"); | |
153 | break; | |
682c7051 | 154 | case 5: |
98c6faba | 155 | case 6: |
682c7051 | 156 | layout = map_name(r5layout, "default"); |
dab6685f | 157 | if (verbose > 0) |
682c7051 NB |
158 | fprintf(stderr, |
159 | Name ": layout defaults to %s\n", map_num(r5layout, layout)); | |
160 | break; | |
b5e64645 NB |
161 | case LEVEL_FAULTY: |
162 | layout = map_name(faultylayout, "default"); | |
163 | ||
dab6685f | 164 | if (verbose > 0) |
b5e64645 NB |
165 | fprintf(stderr, |
166 | Name ": layout defaults to %s\n", map_num(faultylayout, layout)); | |
167 | break; | |
682c7051 NB |
168 | } |
169 | ||
e5329c37 NB |
170 | if (level == 10) |
171 | /* check layout fits in array*/ | |
172 | if ((layout&255) * ((layout>>8)&255) > raiddisks) { | |
173 | fprintf(stderr, Name ": that layout requires at least %d devices\n", | |
174 | (layout&255) * ((layout>>8)&255)); | |
175 | return 1; | |
176 | } | |
177 | ||
aa88f531 NB |
178 | switch(level) { |
179 | case 4: | |
180 | case 5: | |
e5329c37 | 181 | case 10: |
98c6faba | 182 | case 6: |
aa88f531 | 183 | case 0: |
570510ba | 184 | case LEVEL_LINEAR: /* linear */ |
aa88f531 NB |
185 | if (chunk == 0) { |
186 | chunk = 64; | |
dab6685f | 187 | if (verbose > 0) |
aa88f531 NB |
188 | fprintf(stderr, Name ": chunk size defaults to 64K\n"); |
189 | } | |
190 | break; | |
570510ba | 191 | case 1: |
08e43379 | 192 | case LEVEL_FAULTY: |
570510ba | 193 | case LEVEL_MULTIPATH: |
17f25ca6 | 194 | case LEVEL_CONTAINER: |
aa88f531 NB |
195 | if (chunk) { |
196 | chunk = 0; | |
dab6685f | 197 | if (verbose > 0) |
aa88f531 NB |
198 | fprintf(stderr, Name ": chunk size ignored for this level\n"); |
199 | } | |
200 | break; | |
570510ba NB |
201 | default: |
202 | fprintf(stderr, Name ": unknown level %d\n", level); | |
203 | return 1; | |
682c7051 NB |
204 | } |
205 | ||
17f25ca6 NB |
206 | if (st && ! st->ss->validate_geometry(st, level, layout, raiddisks, |
207 | chunk, size, NULL, NULL)) | |
208 | return 1; | |
209 | ||
682c7051 | 210 | /* now look at the subdevs */ |
06c7f68e NB |
211 | info.array.active_disks = 0; |
212 | info.array.working_disks = 0; | |
c913b90e NB |
213 | dnum = 0; |
214 | for (dv=devlist; dv; dv=dv->next, dnum++) { | |
cd29a5c8 | 215 | char *dname = dv->devname; |
17f25ca6 | 216 | unsigned long long freesize; |
cd29a5c8 | 217 | if (strcasecmp(dname, "missing")==0) { |
c913b90e NB |
218 | if (first_missing > dnum) |
219 | first_missing = dnum; | |
6fb79233 NB |
220 | if (second_missing > dnum && dnum > first_missing) |
221 | second_missing = dnum; | |
52826846 NB |
222 | missing_disks ++; |
223 | continue; | |
224 | } | |
06c7f68e | 225 | info.array.working_disks++; |
c913b90e | 226 | if (dnum < raiddisks) |
06c7f68e | 227 | info.array.active_disks++; |
058574b1 | 228 | if (st == NULL) { |
8aec876d | 229 | struct createinfo *ci = conf_get_create_info(); |
058574b1 NB |
230 | if (ci) |
231 | st = ci->supertype; | |
232 | } | |
576d6d83 NB |
233 | if (st == NULL) { |
234 | /* Need to choose a default metadata, which is different | |
17f25ca6 | 235 | * depending on geometry of array. |
576d6d83 NB |
236 | */ |
237 | int i; | |
238 | char *name = "default"; | |
17f25ca6 | 239 | for(i=0; !st && superlist[i]; i++) { |
576d6d83 | 240 | st = superlist[i]->match_metadata_desc(name); |
17f25ca6 NB |
241 | if (st && !st->ss->validate_geometry |
242 | (st, level, layout, raiddisks, | |
243 | chunk, size, dname, &freesize)) | |
244 | st = NULL; | |
245 | } | |
576d6d83 NB |
246 | |
247 | if (!st) { | |
17f25ca6 NB |
248 | fprintf(stderr, Name ": device %s not suitable " |
249 | "for any style of array\n", | |
250 | dname); | |
576d6d83 NB |
251 | exit(2); |
252 | } | |
253 | if (st->ss->major != 0 || | |
254 | st->minor_version != 90) | |
32e5a4ee DL |
255 | fprintf(stderr, Name ": Defaulting to version" |
256 | " %d.%d metadata\n", | |
576d6d83 NB |
257 | st->ss->major, |
258 | st->minor_version); | |
17f25ca6 NB |
259 | } else { |
260 | if (!st->ss->validate_geometry(st, level, layout, | |
261 | raiddisks, | |
262 | chunk, size, dname, | |
263 | &freesize)) { | |
264 | ||
265 | fprintf(stderr, | |
266 | Name ": %s is not suitable for " | |
267 | "this array.\n", | |
268 | dname); | |
269 | fail = 1; | |
270 | continue; | |
271 | } | |
682c7051 | 272 | } |
82d9eba6 NB |
273 | |
274 | freesize /= 2; /* convert to K */ | |
d2cd3ffc NB |
275 | if (chunk) { |
276 | /* round to chunk size */ | |
277 | freesize = freesize & ~(chunk-1); | |
278 | } | |
682c7051 NB |
279 | |
280 | if (size && freesize < size) { | |
52826846 | 281 | fprintf(stderr, Name ": %s is smaller that given size." |
17f25ca6 NB |
282 | " %lluK < %lluK + metadata\n", |
283 | dname, freesize, size); | |
52826846 | 284 | fail = 1; |
52826846 | 285 | continue; |
682c7051 | 286 | } |
cd29a5c8 NB |
287 | if (maxdisc == NULL || (maxdisc && freesize > maxsize)) { |
288 | maxdisc = dname; | |
52826846 | 289 | maxsize = freesize; |
682c7051 | 290 | } |
cd29a5c8 NB |
291 | if (mindisc ==NULL || (mindisc && freesize < minsize)) { |
292 | mindisc = dname; | |
52826846 | 293 | minsize = freesize; |
682c7051 | 294 | } |
dab6685f | 295 | if (runstop != 1 || verbose >= 0) { |
b6e63da4 NB |
296 | int fd = open(dname, O_RDONLY, 0); |
297 | if (fd <0 ) { | |
298 | fprintf(stderr, Name ": Cannot open %s: %s\n", | |
299 | dname, strerror(errno)); | |
300 | fail=1; | |
301 | continue; | |
302 | } | |
dab6685f NB |
303 | warn |= check_ext2(fd, dname); |
304 | warn |= check_reiser(fd, dname); | |
305 | warn |= check_raid(fd, dname); | |
b6e63da4 | 306 | close(fd); |
dab6685f | 307 | } |
682c7051 NB |
308 | } |
309 | if (fail) { | |
52826846 NB |
310 | fprintf(stderr, Name ": create aborted\n"); |
311 | return 1; | |
682c7051 NB |
312 | } |
313 | if (size == 0) { | |
cd29a5c8 | 314 | if (mindisc == NULL) { |
52826846 NB |
315 | fprintf(stderr, Name ": no size and no drives given - aborting create.\n"); |
316 | return 1; | |
317 | } | |
c13c45e9 | 318 | if (level > 0 || level == LEVEL_MULTIPATH || level == LEVEL_FAULTY) { |
b5e64645 | 319 | /* size is meaningful */ |
5dd497ee | 320 | if (minsize > 0x100000000ULL && st->ss->major == 0) { |
aba69144 | 321 | fprintf(stderr, Name ": devices too large for RAID level %d\n", level); |
b5e64645 NB |
322 | return 1; |
323 | } | |
324 | size = minsize; | |
dab6685f | 325 | if (verbose > 0) |
5dd497ee | 326 | fprintf(stderr, Name ": size set to %lluK\n", size); |
b5e64645 | 327 | } |
682c7051 | 328 | } |
b5e64645 | 329 | if (level > 0 && ((maxsize-size)*100 > maxsize)) { |
dab6685f | 330 | if (runstop != 1 || verbose >= 0) |
5dd497ee | 331 | fprintf(stderr, Name ": largest drive (%s) exceed size (%lluK) by more than 1%%\n", |
dab6685f | 332 | maxdisc, size); |
52826846 | 333 | warn = 1; |
682c7051 NB |
334 | } |
335 | ||
336 | if (warn) { | |
52826846 NB |
337 | if (runstop!= 1) { |
338 | if (!ask("Continue creating array? ")) { | |
339 | fprintf(stderr, Name ": create aborted.\n"); | |
340 | return 1; | |
341 | } | |
342 | } else { | |
dab6685f | 343 | if (verbose > 0) |
52826846 | 344 | fprintf(stderr, Name ": creation continuing despite oddities due to --run\n"); |
682c7051 | 345 | } |
682c7051 NB |
346 | } |
347 | ||
66f8bbbe | 348 | /* If this is raid4/5, we want to configure the last active slot |
52826846 | 349 | * as missing, so that a reconstruct happens (faster than re-parity) |
98c6faba | 350 | * FIX: Can we do this for raid6 as well? |
52826846 | 351 | */ |
47d79ef8 | 352 | if (assume_clean==0 && force == 0 && first_missing >= raiddisks) { |
98c6faba | 353 | switch ( level ) { |
66f8bbbe | 354 | case 4: |
98c6faba NB |
355 | case 5: |
356 | insert_point = raiddisks-1; | |
357 | sparedisks++; | |
06c7f68e | 358 | info.array.active_disks--; |
98c6faba NB |
359 | missing_disks++; |
360 | break; | |
361 | default: | |
362 | break; | |
363 | } | |
52826846 | 364 | } |
6fb79233 NB |
365 | /* For raid6, if creating with 1 missing drive, make a good drive |
366 | * into a spare, else the create will fail | |
367 | */ | |
368 | if (assume_clean == 0 && force == 0 && first_missing < raiddisks && | |
369 | second_missing >= raiddisks && level == 6) { | |
370 | insert_point = raiddisks - 1; | |
371 | if (insert_point == first_missing) | |
372 | insert_point--; | |
373 | sparedisks ++; | |
374 | info.array.active_disks--; | |
375 | missing_disks++; | |
376 | } | |
570510ba NB |
377 | |
378 | if (level <= 0 && first_missing != subdevs * 2) { | |
379 | fprintf(stderr, | |
380 | Name ": This level does not support missing devices\n"); | |
381 | return 1; | |
382 | } | |
aba69144 | 383 | |
682c7051 NB |
384 | /* Ok, lets try some ioctls */ |
385 | ||
06c7f68e NB |
386 | info.array.level = level; |
387 | info.array.size = size; | |
388 | info.array.raid_disks = raiddisks; | |
82b27616 NB |
389 | /* The kernel should *know* what md_minor we are dealing |
390 | * with, but it chooses to trust me instead. Sigh | |
391 | */ | |
06c7f68e | 392 | info.array.md_minor = 0; |
82b27616 | 393 | if (fstat(mdfd, &stb)==0) |
06c7f68e NB |
394 | info.array.md_minor = minor(stb.st_rdev); |
395 | info.array.not_persistent = 0; | |
6fb79233 | 396 | |
66f8bbbe | 397 | if ( ( (level == 4 || level == 5) && |
b5e64645 NB |
398 | (insert_point < raiddisks || first_missing < raiddisks) ) |
399 | || | |
6fb79233 NB |
400 | ( level == 6 && (insert_point < raiddisks |
401 | || second_missing < raiddisks)) | |
47d79ef8 NB |
402 | || |
403 | assume_clean | |
b5e64645 | 404 | ) |
06c7f68e | 405 | info.array.state = 1; /* clean, but one+ drive will be missing*/ |
82b27616 | 406 | else |
06c7f68e | 407 | info.array.state = 0; /* not clean, but no errors */ |
82b27616 | 408 | |
f9c25f1d NB |
409 | if (level == 10) { |
410 | /* for raid10, the bitmap size is the capacity of the array, | |
411 | * which is array.size * raid_disks / ncopies; | |
412 | * .. but convert to sectors. | |
413 | */ | |
702b557b | 414 | int ncopies = ((layout>>8) & 255) * (layout & 255); |
5dd497ee NB |
415 | bitmapsize = (unsigned long long)size * raiddisks / ncopies * 2; |
416 | /* printf("bms=%llu as=%d rd=%d nc=%d\n", bitmapsize, size, raiddisks, ncopies);*/ | |
f9c25f1d | 417 | } else |
5dd497ee | 418 | bitmapsize = (unsigned long long)size * 2; |
f9c25f1d | 419 | |
82b27616 NB |
420 | /* There is lots of redundancy in these disk counts, |
421 | * raid_disks is the most meaningful value | |
422 | * it describes the geometry of the array | |
423 | * it is constant | |
424 | * nr_disks is total number of used slots. | |
425 | * it should be raid_disks+spare_disks | |
426 | * spare_disks is the number of extra disks present | |
427 | * see above | |
428 | * active_disks is the number of working disks in | |
429 | * active slots. (With raid_disks) | |
430 | * working_disks is the total number of working disks, | |
431 | * including spares | |
432 | * failed_disks is the number of disks marked failed | |
433 | * | |
434 | * Ideally, the kernel would keep these (except raid_disks) | |
435 | * up-to-date as we ADD_NEW_DISK, but it doesn't (yet). | |
436 | * So for now, we assume that all raid and spare | |
437 | * devices will be given. | |
438 | */ | |
06c7f68e NB |
439 | info.array.spare_disks=sparedisks; |
440 | info.array.failed_disks=missing_disks; | |
441 | info.array.nr_disks = info.array.working_disks | |
442 | + info.array.failed_disks; | |
443 | info.array.layout = layout; | |
444 | info.array.chunk_size = chunk*1024; | |
445 | info.array.major_version = st->ss->major; | |
82d9eba6 | 446 | |
b3b33eb5 NB |
447 | if (name == NULL || *name == 0) { |
448 | /* base name on mddev */ | |
d1e80164 NB |
449 | /* /dev/md0 -> 0 |
450 | * /dev/md_d0 -> d0 | |
451 | * /dev/md/1 -> 1 | |
452 | * /dev/md/d1 -> d1 | |
453 | * /dev/md/home -> home | |
454 | * /dev/mdhome -> home | |
455 | */ | |
b3b33eb5 NB |
456 | name = strrchr(mddev, '/'); |
457 | if (name) { | |
458 | name++; | |
60248f74 NB |
459 | if (strncmp(name, "md_d", 4)==0 && |
460 | strlen(name) > 4 && | |
461 | isdigit(name[4]) && | |
b3b33eb5 | 462 | (name-mddev) == 5 /* /dev/ */) |
d1e80164 | 463 | name += 3; |
60248f74 NB |
464 | else if (strncmp(name, "md", 2)==0 && |
465 | strlen(name) > 2 && | |
466 | isdigit(name[2]) && | |
467 | (name-mddev) == 5 /* /dev/ */) | |
b3b33eb5 NB |
468 | name += 2; |
469 | } | |
470 | } | |
06c7f68e | 471 | if (!st->ss->init_super(st, &info.array, size, name, homehost, uuid)) |
82d9eba6 | 472 | return 1; |
682c7051 | 473 | |
dcec9ee5 | 474 | if (bitmap_file && vers < 9003) { |
943eafef | 475 | major_num = BITMAP_MAJOR_HOSTENDIAN; |
dcec9ee5 NB |
476 | #ifdef __BIG_ENDIAN |
477 | fprintf(stderr, Name ": Warning - bitmaps created on this kernel are not portable\n" | |
478 | " between different architectured. Consider upgrading the Linux kernel.\n"); | |
479 | #endif | |
480 | } | |
481 | ||
55935d51 NB |
482 | if (bitmap_file && strcmp(bitmap_file, "internal")==0) { |
483 | if ((vers%100) < 2) { | |
484 | fprintf(stderr, Name ": internal bitmaps not supported by this kernel.\n"); | |
485 | return 1; | |
486 | } | |
3da92f27 | 487 | if (!st->ss->add_internal_bitmap(st, &bitmap_chunk, |
199171a2 | 488 | delay, write_behind, |
943eafef | 489 | bitmapsize, 1, major_num)) { |
55935d51 NB |
490 | fprintf(stderr, Name ": Given bitmap chunk size not supported.\n"); |
491 | return 1; | |
492 | } | |
493 | bitmap_file = NULL; | |
494 | } | |
495 | ||
496 | ||
d03373f1 | 497 | sra = sysfs_read(mdfd, 0, 0); |
55935d51 | 498 | |
d03373f1 NB |
499 | if (st->ss->external) { |
500 | char ver[100]; | |
501 | strcat(strcpy(ver, "external:"), st->ss->text_version); | |
502 | if ((vers % 100) < 2 || | |
503 | sra == NULL || | |
504 | sysfs_set_str(sra, NULL, "metadata_version", | |
505 | ver) < 0) { | |
506 | fprintf(stderr, Name ": This kernel does not " | |
507 | "support external metadata.\n"); | |
508 | return 1; | |
509 | } | |
510 | rv = 0; | |
511 | } else if ((vers % 100) >= 1) { /* can use different versions */ | |
82d9eba6 NB |
512 | mdu_array_info_t inf; |
513 | memset(&inf, 0, sizeof(inf)); | |
514 | inf.major_version = st->ss->major; | |
515 | inf.minor_version = st->minor_version; | |
516 | rv = ioctl(mdfd, SET_ARRAY_INFO, &inf); | |
aba69144 | 517 | } else |
82d9eba6 NB |
518 | rv = ioctl(mdfd, SET_ARRAY_INFO, NULL); |
519 | if (rv) { | |
52826846 NB |
520 | fprintf(stderr, Name ": SET_ARRAY_INFO failed for %s: %s\n", |
521 | mddev, strerror(errno)); | |
522 | return 1; | |
682c7051 | 523 | } |
52826846 | 524 | |
c82f047c NB |
525 | if (bitmap_file) { |
526 | int uuid[4]; | |
55935d51 | 527 | |
3da92f27 | 528 | st->ss->uuid_from_super(st, uuid); |
dfd4d8ee | 529 | if (CreateBitmap(bitmap_file, force, (char*)uuid, bitmap_chunk, |
dcec9ee5 | 530 | delay, write_behind, |
f9c25f1d | 531 | bitmapsize, |
943eafef | 532 | major_num)) { |
c82f047c NB |
533 | return 1; |
534 | } | |
535 | bitmap_fd = open(bitmap_file, O_RDWR); | |
536 | if (bitmap_fd < 0) { | |
537 | fprintf(stderr, Name ": weird: %s cannot be openned\n", | |
dcec9ee5 | 538 | bitmap_file); |
c82f047c NB |
539 | return 1; |
540 | } | |
541 | if (ioctl(mdfd, SET_BITMAP_FILE, bitmap_fd) < 0) { | |
542 | fprintf(stderr, Name ": Cannot set bitmap file for %s: %s\n", | |
543 | mddev, strerror(errno)); | |
544 | return 1; | |
545 | } | |
546 | } | |
547 | ||
4b1ac34b | 548 | |
4b1ac34b NB |
549 | for (pass=1; pass <=2 ; pass++) { |
550 | mddev_dev_t moved_disk = NULL; /* the disk that was moved out of the insert point */ | |
551 | ||
552 | for (dnum=0, dv = devlist ; dv ; | |
553 | dv=(dv->next)?(dv->next):moved_disk, dnum++) { | |
554 | int fd; | |
555 | struct stat stb; | |
4b1ac34b | 556 | |
06c7f68e | 557 | info.disk.number = dnum; |
4b1ac34b NB |
558 | if (dnum == insert_point) { |
559 | moved_disk = dv; | |
52826846 | 560 | } |
06c7f68e NB |
561 | info.disk.raid_disk = info.disk.number; |
562 | if (info.disk.raid_disk < raiddisks) | |
563 | info.disk.state = (1<<MD_DISK_ACTIVE) | | |
dfd4d8ee | 564 | (1<<MD_DISK_SYNC); |
4b1ac34b | 565 | else |
06c7f68e | 566 | info.disk.state = 0; |
dfd4d8ee | 567 | if (dv->writemostly) |
06c7f68e | 568 | info.disk.state |= (1<<MD_DISK_WRITEMOSTLY); |
dfd4d8ee | 569 | |
4b1ac34b | 570 | if (dnum == insert_point || |
111d01fc NB |
571 | strcasecmp(dv->devname, "missing")==0) |
572 | continue; | |
573 | ||
574 | fd = open(dv->devname, O_RDWR|O_EXCL, 0); | |
575 | if (fd < 0) { | |
576 | fprintf(stderr, Name ": failed to open %s " | |
577 | "after earlier success - aborting\n", | |
578 | dv->devname); | |
579 | return 1; | |
4b1ac34b | 580 | } |
111d01fc NB |
581 | fstat(fd, &stb); |
582 | info.disk.major = major(stb.st_rdev); | |
583 | info.disk.minor = minor(stb.st_rdev); | |
584 | ||
4b1ac34b NB |
585 | switch(pass){ |
586 | case 1: | |
111d01fc NB |
587 | remove_partitions(fd); |
588 | st->ss->add_to_super(st, &info.disk, | |
589 | fd, dv->devname); | |
4b1ac34b NB |
590 | break; |
591 | case 2: | |
111d01fc | 592 | close(fd); |
4b1ac34b | 593 | |
d03373f1 NB |
594 | if (st->ss->external) { |
595 | char dv[100]; | |
596 | sprintf(dv, "%d:%d\n", | |
597 | info.disk.major, | |
598 | info.disk.minor); | |
599 | sysfs_set_str(sra, NULL, "new_dev", dv); | |
600 | /* FIXME check error */ | |
601 | /*FIXME find that device and set it up*/ | |
602 | } else if (ioctl(mdfd, ADD_NEW_DISK, | |
603 | &info.disk)) { | |
604 | fprintf(stderr, | |
605 | Name ": ADD_NEW_DISK for %s " | |
606 | "failed: %s\n", | |
4b1ac34b | 607 | dv->devname, strerror(errno)); |
3da92f27 | 608 | st->ss->free_super(st); |
4b1ac34b NB |
609 | return 1; |
610 | } | |
4b1ac34b NB |
611 | break; |
612 | } | |
613 | if (dv == moved_disk && dnum != insert_point) break; | |
52826846 | 614 | } |
111d01fc NB |
615 | if (pass == 1) |
616 | st->ss->write_init_super(st); | |
5e52ae9e | 617 | } |
3da92f27 | 618 | st->ss->free_super(st); |
5e52ae9e | 619 | |
682c7051 | 620 | /* param is not actually used */ |
17f25ca6 NB |
621 | if (level == LEVEL_CONTAINER) |
622 | /* No need to start */ | |
623 | ; | |
624 | else if (runstop == 1 || subdevs >= raiddisks) { | |
82b27616 | 625 | mdu_param_t param; |
682c7051 NB |
626 | if (ioctl(mdfd, RUN_ARRAY, ¶m)) { |
627 | fprintf(stderr, Name ": RUN_ARRAY failed: %s\n", | |
628 | strerror(errno)); | |
91f068bf | 629 | Manage_runstop(mddev, mdfd, -1, 0); |
682c7051 NB |
630 | return 1; |
631 | } | |
dab6685f NB |
632 | if (verbose >= 0) |
633 | fprintf(stderr, Name ": array %s started.\n", mddev); | |
682c7051 | 634 | } else { |
b83d95f3 | 635 | fprintf(stderr, Name ": not starting array - not enough devices.\n"); |
682c7051 NB |
636 | } |
637 | return 0; | |
64c4757e | 638 | } |