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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" | |
64c4757e | 33 | |
82b27616 NB |
34 | #define REGISTER_DEV _IO (MD_MAJOR, 1) |
35 | #define START_MD _IO (MD_MAJOR, 2) | |
36 | #define STOP_MD _IO (MD_MAJOR, 3) | |
37 | ||
64c4757e NB |
38 | int Manage_ro(char *devname, int fd, int readonly) |
39 | { | |
682c7051 NB |
40 | /* switch to readonly or rw |
41 | * | |
42 | * requires >= 0.90.0 | |
43 | * first check that array is runing | |
44 | * use RESTART_ARRAY_RW or STOP_ARRAY_RO | |
45 | * | |
46 | */ | |
47 | mdu_array_info_t array; | |
aba69144 | 48 | |
682c7051 NB |
49 | if (md_get_version(fd) < 9000) { |
50 | fprintf(stderr, Name ": need md driver version 0.90.0 or later\n"); | |
51 | return 1; | |
52 | } | |
53 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { | |
54 | fprintf(stderr, Name ": %s does not appear to be active.\n", | |
55 | devname); | |
56 | return 1; | |
57 | } | |
aba69144 | 58 | |
682c7051 NB |
59 | if (readonly>0) { |
60 | if (ioctl(fd, STOP_ARRAY_RO, NULL)) { | |
61 | fprintf(stderr, Name ": failed to set readonly for %s: %s\n", | |
62 | devname, strerror(errno)); | |
63 | return 1; | |
64 | } | |
65 | } else if (readonly < 0) { | |
66 | if (ioctl(fd, RESTART_ARRAY_RW, NULL)) { | |
82b27616 | 67 | fprintf(stderr, Name ": failed to set writable for %s: %s\n", |
682c7051 NB |
68 | devname, strerror(errno)); |
69 | return 1; | |
70 | } | |
71 | } | |
aba69144 | 72 | return 0; |
64c4757e NB |
73 | } |
74 | ||
435d4ebb LB |
75 | #ifndef MDASSEMBLE |
76 | ||
91f068bf | 77 | int Manage_runstop(char *devname, int fd, int runstop, int quiet) |
64c4757e | 78 | { |
682c7051 NB |
79 | /* Run or stop the array. array must already be configured |
80 | * required >= 0.90.0 | |
4b9d39fc N |
81 | * Only print failure messages if quiet == 0; |
82 | * quiet > 0 means really be quiet | |
83 | * quiet < 0 means we will try again if it fails. | |
682c7051 | 84 | */ |
682c7051 | 85 | mdu_param_t param; /* unused */ |
82b27616 NB |
86 | |
87 | if (runstop == -1 && md_get_version(fd) < 9000) { | |
88 | if (ioctl(fd, STOP_MD, 0)) { | |
4b9d39fc N |
89 | if (quiet == 0) fprintf(stderr, |
90 | Name ": stopping device %s " | |
91 | "failed: %s\n", | |
92 | devname, strerror(errno)); | |
82b27616 NB |
93 | return 1; |
94 | } | |
95 | } | |
aba69144 | 96 | |
682c7051 NB |
97 | if (md_get_version(fd) < 9000) { |
98 | fprintf(stderr, Name ": need md driver version 0.90.0 or later\n"); | |
99 | return 1; | |
100 | } | |
82b27616 | 101 | /* |
682c7051 NB |
102 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { |
103 | fprintf(stderr, Name ": %s does not appear to be active.\n", | |
104 | devname); | |
105 | return 1; | |
106 | } | |
82b27616 | 107 | */ |
682c7051 NB |
108 | if (runstop>0) { |
109 | if (ioctl(fd, RUN_ARRAY, ¶m)) { | |
110 | fprintf(stderr, Name ": failed to run array %s: %s\n", | |
111 | devname, strerror(errno)); | |
112 | return 1; | |
113 | } | |
8382f19b NB |
114 | if (quiet <= 0) |
115 | fprintf(stderr, Name ": started %s\n", devname); | |
682c7051 | 116 | } else if (runstop < 0){ |
8382f19b NB |
117 | struct map_ent *map = NULL; |
118 | struct stat stb; | |
daf7a3ce NB |
119 | struct mdinfo *mdi; |
120 | /* If this is an mdmon managed array, just write 'inactive' | |
121 | * to the array state and let mdmon clear up. | |
122 | */ | |
123 | mdi = sysfs_read(fd, -1, GET_LEVEL|GET_VERSION); | |
124 | if (mdi && | |
125 | mdi->array.level > 0 && | |
126 | mdi->text_version[0] == '/') { | |
127 | char *cp; | |
128 | ||
129 | /* This is mdmon managed. */ | |
130 | close(fd); | |
131 | if (sysfs_set_str(mdi, NULL, | |
132 | "array_state", "inactive") < 0) { | |
4b9d39fc | 133 | if (quiet == 0) |
daf7a3ce | 134 | fprintf(stderr, Name |
4b9d39fc | 135 | ": failed to stop array %s: %s\n", |
daf7a3ce NB |
136 | devname, strerror(errno)); |
137 | return 1; | |
138 | } | |
139 | ||
140 | /* Give monitor a chance to act */ | |
141 | cp = strchr(mdi->text_version+1, '/'); | |
142 | if (*cp) | |
143 | *cp = 0; | |
144 | ping_monitor(mdi->text_version+1); | |
145 | ||
146 | fd = open(devname, O_RDONLY); | |
147 | } | |
148 | if (mdi) | |
149 | sysfs_free(mdi); | |
150 | ||
151 | if (fd >= 0 && ioctl(fd, STOP_ARRAY, NULL)) { | |
4b9d39fc | 152 | if (quiet == 0) |
daf7a3ce | 153 | fprintf(stderr, Name |
4b9d39fc | 154 | ": failed to stop array %s: %s\n", |
91f068bf | 155 | devname, strerror(errno)); |
682c7051 NB |
156 | return 1; |
157 | } | |
daf7a3ce | 158 | |
ab56093f NB |
159 | if (quiet <= 0) |
160 | fprintf(stderr, Name ": stopped %s\n", devname); | |
daf7a3ce | 161 | if (fd >= 0 && fstat(fd, &stb) == 0) { |
8382f19b NB |
162 | int devnum; |
163 | if (major(stb.st_rdev) == MD_MAJOR) | |
164 | devnum = minor(stb.st_rdev); | |
165 | else | |
166 | devnum = -1-(minor(stb.st_rdev)>>6); | |
167 | map_delete(&map, devnum); | |
168 | map_write(map); | |
169 | map_free(map); | |
170 | } | |
682c7051 NB |
171 | } |
172 | return 0; | |
64c4757e NB |
173 | } |
174 | ||
dd0781e5 NB |
175 | int Manage_resize(char *devname, int fd, long long size, int raid_disks) |
176 | { | |
177 | mdu_array_info_t info; | |
178 | if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) { | |
179 | fprintf(stderr, Name ": Cannot get array information for %s: %s\n", | |
180 | devname, strerror(errno)); | |
181 | return 1; | |
182 | } | |
183 | if (size >= 0) | |
184 | info.size = size; | |
185 | if (raid_disks > 0) | |
186 | info.raid_disks = raid_disks; | |
187 | if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) { | |
188 | fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n", | |
189 | devname, strerror(errno)); | |
190 | return 1; | |
191 | } | |
192 | return 0; | |
193 | } | |
194 | ||
b5e64645 NB |
195 | int Manage_reconfig(char *devname, int fd, int layout) |
196 | { | |
197 | mdu_array_info_t info; | |
198 | if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) { | |
199 | fprintf(stderr, Name ": Cannot get array information for %s: %s\n", | |
200 | devname, strerror(errno)); | |
201 | return 1; | |
202 | } | |
203 | info.layout = layout; | |
204 | printf("layout set to %d\n", info.layout); | |
205 | if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) { | |
206 | fprintf(stderr, Name ": Cannot set layout for %s: %s\n", | |
207 | devname, strerror(errno)); | |
208 | return 1; | |
209 | } | |
210 | return 0; | |
211 | } | |
dd0781e5 | 212 | |
64c4757e | 213 | int Manage_subdevs(char *devname, int fd, |
dab6685f | 214 | mddev_dev_t devlist, int verbose) |
cd29a5c8 | 215 | { |
682c7051 NB |
216 | /* do something to each dev. |
217 | * devmode can be | |
218 | * 'a' - add the device | |
219 | * try HOT_ADD_DISK | |
220 | * If that fails EINVAL, try ADD_NEW_DISK | |
221 | * 'r' - remove the device HOT_REMOVE_DISK | |
b80da661 NB |
222 | * device can be 'faulty' or 'detached' in which case all |
223 | * matching devices are removed. | |
682c7051 | 224 | * 'f' - set the device faulty SET_DISK_FAULTY |
b80da661 NB |
225 | * device can be 'detached' in which case any device that |
226 | * is inaccessible will be marked faulty. | |
682c7051 NB |
227 | */ |
228 | mdu_array_info_t array; | |
229 | mdu_disk_info_t disc; | |
7a3be72f | 230 | unsigned long long array_size; |
b80da661 | 231 | mddev_dev_t dv, next = NULL; |
682c7051 | 232 | struct stat stb; |
b80da661 | 233 | int j, jnext = 0; |
0fbf459d | 234 | int tfd; |
3da92f27 | 235 | struct supertype *st, *tst; |
fe80f49b NB |
236 | int duuid[4]; |
237 | int ouuid[4]; | |
f94d52f4 | 238 | int lfd = -1; |
682c7051 NB |
239 | |
240 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { | |
241 | fprintf(stderr, Name ": cannot get array info for %s\n", | |
242 | devname); | |
243 | return 1; | |
244 | } | |
3da92f27 | 245 | |
7a3be72f NB |
246 | /* array.size is only 32 bit and may be truncated. |
247 | * So read from sysfs if possible, and record number of sectors | |
248 | */ | |
249 | ||
250 | array_size = get_component_size(fd); | |
251 | if (array_size <= 0) | |
252 | array_size = array.size * 2; | |
253 | ||
1686dc25 | 254 | tst = super_by_fd(fd); |
3da92f27 NB |
255 | if (!tst) { |
256 | fprintf(stderr, Name ": unsupport array - version %d.%d\n", | |
257 | array.major_version, array.minor_version); | |
258 | return 1; | |
259 | } | |
260 | ||
b80da661 | 261 | for (dv = devlist, j=0 ; dv; dv = next, j = jnext) { |
4a39c6f2 | 262 | unsigned long long ldsize; |
b80da661 NB |
263 | char dvname[20]; |
264 | char *dnprintable = dv->devname; | |
f94d52f4 | 265 | int err; |
4a39c6f2 | 266 | |
b80da661 NB |
267 | next = dv->next; |
268 | jnext = 0; | |
269 | ||
270 | if (strcmp(dv->devname, "failed")==0 || | |
271 | strcmp(dv->devname, "faulty")==0) { | |
272 | if (dv->disposition != 'r') { | |
273 | fprintf(stderr, Name ": %s only meaningful " | |
274 | "with -r, not -%c\n", | |
275 | dv->devname, dv->disposition); | |
276 | return 1; | |
277 | } | |
278 | for (; j < array.raid_disks + array.nr_disks ; j++) { | |
279 | disc.number = j; | |
280 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
281 | continue; | |
282 | if (disc.major == 0 && disc.minor == 0) | |
283 | continue; | |
284 | if ((disc.state & 1) == 0) /* faulty */ | |
285 | continue; | |
286 | stb.st_rdev = makedev(disc.major, disc.minor); | |
287 | next = dv; | |
288 | jnext = j+1; | |
289 | sprintf(dvname,"%d:%d", disc.major, disc.minor); | |
290 | dnprintable = dvname; | |
291 | break; | |
292 | } | |
293 | if (jnext == 0) | |
294 | continue; | |
295 | } else if (strcmp(dv->devname, "detached") == 0) { | |
296 | if (dv->disposition != 'r' && dv->disposition != 'f') { | |
297 | fprintf(stderr, Name ": %s only meaningful " | |
298 | "with -r of -f, not -%c\n", | |
299 | dv->devname, dv->disposition); | |
300 | return 1; | |
301 | } | |
302 | for (; j < array.raid_disks + array.nr_disks; j++) { | |
303 | int sfd; | |
304 | disc.number = j; | |
305 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
306 | continue; | |
307 | if (disc.major == 0 && disc.minor == 0) | |
308 | continue; | |
309 | sprintf(dvname,"%d:%d", disc.major, disc.minor); | |
310 | sfd = dev_open(dvname, O_RDONLY); | |
311 | if (sfd >= 0) { | |
312 | close(sfd); | |
313 | continue; | |
314 | } | |
315 | if (dv->disposition == 'f' && | |
316 | (disc.state & 1) == 1) /* already faulty */ | |
317 | continue; | |
318 | if (errno != ENXIO) | |
319 | continue; | |
320 | stb.st_rdev = makedev(disc.major, disc.minor); | |
321 | next = dv; | |
322 | jnext = j+1; | |
323 | dnprintable = dvname; | |
324 | break; | |
325 | } | |
326 | if (jnext == 0) | |
327 | continue; | |
328 | } else { | |
329 | j = 0; | |
330 | ||
331 | if (stat(dv->devname, &stb)) { | |
332 | fprintf(stderr, Name ": cannot find %s: %s\n", | |
333 | dv->devname, strerror(errno)); | |
334 | return 1; | |
335 | } | |
336 | if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
337 | fprintf(stderr, Name ": %s is not a " | |
338 | "block device.\n", | |
339 | dv->devname); | |
340 | return 1; | |
341 | } | |
682c7051 | 342 | } |
cd29a5c8 | 343 | switch(dv->disposition){ |
682c7051 | 344 | default: |
c913b90e NB |
345 | fprintf(stderr, Name ": internal error - devmode[%s]=%d\n", |
346 | dv->devname, dv->disposition); | |
682c7051 NB |
347 | return 1; |
348 | case 'a': | |
4a39c6f2 | 349 | /* add the device */ |
f7e7067b | 350 | if (tst->subarray[0]) { |
f7dd881f DW |
351 | fprintf(stderr, Name ": Cannot add disks to a" |
352 | " \'member\' array, perform this" | |
353 | " operation on the parent container\n"); | |
354 | return 1; | |
f94d52f4 | 355 | } |
f277ce36 | 356 | /* Make sure it isn't in use (in 2.6 or later) */ |
6416d527 | 357 | tfd = open(dv->devname, O_RDONLY|O_EXCL|O_DIRECT); |
0fbf459d | 358 | if (tfd < 0) { |
d7eaf49f NB |
359 | fprintf(stderr, Name ": Cannot open %s: %s\n", |
360 | dv->devname, strerror(errno)); | |
361 | return 1; | |
362 | } | |
25037aa8 | 363 | remove_partitions(tfd); |
3da92f27 | 364 | |
1686dc25 | 365 | st = dup_super(tst); |
3da92f27 | 366 | |
fe80f49b | 367 | if (array.not_persistent==0) |
3da92f27 NB |
368 | st->ss->load_super(st, tfd, NULL); |
369 | ||
beae1dfe | 370 | if (!get_dev_size(tfd, dv->devname, &ldsize)) { |
4a39c6f2 NB |
371 | close(tfd); |
372 | return 1; | |
4a39c6f2 | 373 | } |
0fbf459d | 374 | close(tfd); |
fe80f49b | 375 | |
f94d52f4 NB |
376 | |
377 | if (!tst->ss->external && | |
378 | array.major_version == 0 && | |
60d9a174 | 379 | md_get_version(fd)%100 < 2) { |
892debc8 NB |
380 | if (ioctl(fd, HOT_ADD_DISK, |
381 | (unsigned long)stb.st_rdev)==0) { | |
dab6685f NB |
382 | if (verbose >= 0) |
383 | fprintf(stderr, Name ": hot added %s\n", | |
384 | dv->devname); | |
892debc8 NB |
385 | continue; |
386 | } | |
387 | ||
cd29a5c8 | 388 | fprintf(stderr, Name ": hot add failed for %s: %s\n", |
892debc8 | 389 | dv->devname, strerror(errno)); |
cd29a5c8 NB |
390 | return 1; |
391 | } | |
892debc8 | 392 | |
fe80f49b NB |
393 | if (array.not_persistent == 0) { |
394 | ||
4a39c6f2 | 395 | /* Make sure device is large enough */ |
3da92f27 | 396 | if (tst->ss->avail_size(tst, ldsize/512) < |
7a3be72f | 397 | array_size) { |
4a39c6f2 NB |
398 | fprintf(stderr, Name ": %s not large enough to join array\n", |
399 | dv->devname); | |
400 | return 1; | |
401 | } | |
402 | ||
fe80f49b | 403 | /* need to find a sample superblock to copy, and |
aba69144 | 404 | * a spare slot to use |
fe80f49b | 405 | */ |
3da92f27 | 406 | for (j = 0; j < tst->max_devs; j++) { |
fe80f49b NB |
407 | char *dev; |
408 | int dfd; | |
409 | disc.number = j; | |
410 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
411 | continue; | |
412 | if (disc.major==0 && disc.minor==0) | |
413 | continue; | |
414 | if ((disc.state & 4)==0) continue; /* sync */ | |
415 | /* Looks like a good device to try */ | |
16c6fa80 | 416 | dev = map_dev(disc.major, disc.minor, 1); |
fe80f49b | 417 | if (!dev) continue; |
16c6fa80 | 418 | dfd = dev_open(dev, O_RDONLY); |
fe80f49b | 419 | if (dfd < 0) continue; |
3da92f27 NB |
420 | if (tst->ss->load_super(tst, dfd, |
421 | NULL)) { | |
fe80f49b NB |
422 | close(dfd); |
423 | continue; | |
424 | } | |
892debc8 | 425 | close(dfd); |
fe80f49b NB |
426 | break; |
427 | } | |
3da92f27 | 428 | if (!tst->sb) { |
fe80f49b NB |
429 | fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n"); |
430 | return 1; | |
431 | } | |
432 | /* Possibly this device was recently part of the array | |
433 | * and was temporarily removed, and is now being re-added. | |
434 | * If so, we can simply re-add it. | |
435 | */ | |
3da92f27 | 436 | tst->ss->uuid_from_super(tst, duuid); |
7eae7080 NB |
437 | |
438 | /* re-add doesn't work for version-1 superblocks | |
439 | * before 2.6.18 :-( | |
440 | */ | |
441 | if (array.major_version == 1 && | |
442 | get_linux_version() <= 2006018) | |
443 | ; | |
3da92f27 NB |
444 | else if (st->sb) { |
445 | st->ss->uuid_from_super(st, ouuid); | |
fe80f49b | 446 | if (memcmp(duuid, ouuid, sizeof(ouuid))==0) { |
4d20d744 NB |
447 | /* looks close enough for now. Kernel |
448 | * will worry about whether a bitmap | |
449 | * based reconstruction is possible. | |
fe80f49b NB |
450 | */ |
451 | struct mdinfo mdi; | |
3da92f27 | 452 | st->ss->getinfo_super(st, &mdi); |
fe80f49b NB |
453 | disc.major = major(stb.st_rdev); |
454 | disc.minor = minor(stb.st_rdev); | |
455 | disc.number = mdi.disk.number; | |
456 | disc.raid_disk = mdi.disk.raid_disk; | |
457 | disc.state = mdi.disk.state; | |
4d20d744 NB |
458 | if (dv->writemostly) |
459 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; | |
fe80f49b NB |
460 | if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) { |
461 | if (verbose >= 0) | |
462 | fprintf(stderr, Name ": re-added %s\n", dv->devname); | |
308e1801 | 463 | continue; |
fe80f49b NB |
464 | } |
465 | /* fall back on normal-add */ | |
466 | } | |
892debc8 | 467 | } |
4a39c6f2 NB |
468 | } else { |
469 | /* non-persistent. Must ensure that new drive | |
470 | * is at least array.size big. | |
471 | */ | |
7a3be72f | 472 | if (ldsize/512 < array_size) { |
4a39c6f2 NB |
473 | fprintf(stderr, Name ": %s not large enough to join array\n", |
474 | dv->devname); | |
475 | return 1; | |
476 | } | |
892debc8 | 477 | } |
7eae7080 NB |
478 | /* in 2.6.17 and earlier, version-1 superblocks won't |
479 | * use the number we write, but will choose a free number. | |
480 | * we must choose the same free number, which requires | |
481 | * starting at 'raid_disks' and counting up | |
482 | */ | |
3da92f27 | 483 | for (j = array.raid_disks; j< tst->max_devs; j++) { |
aa88f531 | 484 | disc.number = j; |
682c7051 NB |
485 | if (ioctl(fd, GET_DISK_INFO, &disc)) |
486 | break; | |
487 | if (disc.major==0 && disc.minor==0) | |
488 | break; | |
489 | if (disc.state & 8) /* removed */ | |
490 | break; | |
491 | } | |
0df46c2a NB |
492 | disc.major = major(stb.st_rdev); |
493 | disc.minor = minor(stb.st_rdev); | |
892debc8 NB |
494 | disc.number =j; |
495 | disc.state = 0; | |
fe80f49b | 496 | if (array.not_persistent==0) { |
111d01fc | 497 | int dfd; |
fe80f49b NB |
498 | if (dv->writemostly) |
499 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; | |
6416d527 | 500 | dfd = open(dv->devname, O_RDWR | O_EXCL|O_DIRECT); |
111d01fc NB |
501 | tst->ss->add_to_super(tst, &disc, dfd, |
502 | dv->devname); | |
503 | /* write_init_super will close 'dfd' */ | |
504 | if (tst->ss->write_init_super(tst)) | |
fe80f49b NB |
505 | return 1; |
506 | } else if (dv->re_add) { | |
507 | /* this had better be raid1. | |
508 | * As we are "--re-add"ing we must find a spare slot | |
509 | * to fill. | |
510 | */ | |
511 | char *used = malloc(array.raid_disks); | |
512 | memset(used, 0, array.raid_disks); | |
3da92f27 | 513 | for (j=0; j< tst->max_devs; j++) { |
fe80f49b NB |
514 | mdu_disk_info_t disc2; |
515 | disc2.number = j; | |
516 | if (ioctl(fd, GET_DISK_INFO, &disc2)) | |
517 | continue; | |
518 | if (disc2.major==0 && disc2.minor==0) | |
519 | continue; | |
520 | if (disc2.state & 8) /* removed */ | |
521 | continue; | |
522 | if (disc2.raid_disk < 0) | |
523 | continue; | |
524 | if (disc2.raid_disk > array.raid_disks) | |
525 | continue; | |
526 | used[disc2.raid_disk] = 1; | |
527 | } | |
528 | for (j=0 ; j<array.raid_disks; j++) | |
529 | if (!used[j]) { | |
530 | disc.raid_disk = j; | |
531 | disc.state |= (1<<MD_DISK_SYNC); | |
532 | break; | |
533 | } | |
534 | } | |
d8def61c NB |
535 | if (dv->writemostly) |
536 | disc.state |= (1 << MD_DISK_WRITEMOSTLY); | |
682c7051 | 537 | if (ioctl(fd,ADD_NEW_DISK, &disc)) { |
f277ce36 NB |
538 | fprintf(stderr, Name ": add new device failed for %s as %d: %s\n", |
539 | dv->devname, j, strerror(errno)); | |
682c7051 NB |
540 | return 1; |
541 | } | |
dab6685f NB |
542 | if (verbose >= 0) |
543 | fprintf(stderr, Name ": added %s\n", dv->devname); | |
682c7051 NB |
544 | break; |
545 | ||
546 | case 'r': | |
547 | /* hot remove */ | |
f7e7067b | 548 | if (tst->subarray[0]) { |
f7dd881f DW |
549 | fprintf(stderr, Name ": Cannot remove disks from a" |
550 | " \'member\' array, perform this" | |
551 | " operation on the parent container\n"); | |
552 | return 1; | |
f94d52f4 NB |
553 | } |
554 | if (tst->ss->external) { | |
555 | /* To remove a device from a container, we must | |
556 | * check that it isn't in use in an array. | |
557 | * This involves looking in the 'holders' | |
558 | * directory - there must be just one entry, | |
559 | * the container. | |
560 | * To ensure that it doesn't get used as a | |
561 | * hold spare while we are checking, we | |
562 | * get an O_EXCL open on the container | |
563 | */ | |
564 | int dnum = fd2devnum(fd); | |
565 | lfd = open_dev_excl(dnum); | |
566 | if (lfd < 0) { | |
567 | fprintf(stderr, Name | |
568 | ": Cannot get exclusive access " | |
569 | " to container - odd\n"); | |
570 | return 1; | |
571 | } | |
572 | if (!sysfs_unique_holder(dnum, stb.st_rdev)) { | |
573 | fprintf(stderr, Name | |
574 | ": %s is %s, cannot remove.\n", | |
575 | dnprintable, | |
576 | errno == EEXIST ? "still in use": | |
577 | "not a member"); | |
578 | close(lfd); | |
579 | return 1; | |
580 | } | |
581 | } | |
82b27616 | 582 | /* FIXME check that it is a current member */ |
f94d52f4 NB |
583 | err = ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev); |
584 | if (err && errno == ENODEV) { | |
585 | /* Old kernels rejected this if no personality | |
586 | * registered */ | |
587 | struct mdinfo *sra = sysfs_read(fd, 0, GET_DEVS); | |
588 | struct mdinfo *dv = NULL; | |
589 | if (sra) | |
590 | dv = sra->devs; | |
591 | for ( ; dv ; dv=dv->next) | |
592 | if (dv->disk.major == major(stb.st_rdev) && | |
593 | dv->disk.minor == minor(stb.st_rdev)) | |
594 | break; | |
595 | if (dv) | |
596 | err = sysfs_set_str(sra, dv, | |
597 | "state", "remove"); | |
598 | else | |
599 | err = -1; | |
600 | if (sra) | |
601 | sysfs_free(sra); | |
602 | } | |
603 | if (err) { | |
b80da661 NB |
604 | fprintf(stderr, Name ": hot remove failed " |
605 | "for %s: %s\n", dnprintable, | |
606 | strerror(errno)); | |
f94d52f4 NB |
607 | if (lfd >= 0) |
608 | close(lfd); | |
682c7051 NB |
609 | return 1; |
610 | } | |
f94d52f4 | 611 | close(lfd); |
dab6685f | 612 | if (verbose >= 0) |
b80da661 NB |
613 | fprintf(stderr, Name ": hot removed %s\n", |
614 | dnprintable); | |
682c7051 NB |
615 | break; |
616 | ||
617 | case 'f': /* set faulty */ | |
618 | /* FIXME check current member */ | |
cd29a5c8 | 619 | if (ioctl(fd, SET_DISK_FAULTY, (unsigned long) stb.st_rdev)) { |
b83d95f3 | 620 | fprintf(stderr, Name ": set device faulty failed for %s: %s\n", |
b80da661 | 621 | dnprintable, strerror(errno)); |
682c7051 NB |
622 | return 1; |
623 | } | |
dab6685f NB |
624 | if (verbose >= 0) |
625 | fprintf(stderr, Name ": set %s faulty in %s\n", | |
b80da661 | 626 | dnprintable, devname); |
682c7051 NB |
627 | break; |
628 | } | |
629 | } | |
630 | return 0; | |
aba69144 | 631 | |
64c4757e | 632 | } |
1f48664b NB |
633 | |
634 | int autodetect(void) | |
635 | { | |
636 | /* Open any md device, and issue the RAID_AUTORUN ioctl */ | |
637 | int rv = 1; | |
638 | int fd = dev_open("9:0", O_RDONLY); | |
639 | if (fd >= 0) { | |
640 | if (ioctl(fd, RAID_AUTORUN, 0) == 0) | |
641 | rv = 0; | |
642 | close(fd); | |
643 | } | |
644 | return rv; | |
645 | } | |
435d4ebb | 646 | #endif |