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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" |
682c7051 NB |
26 | #include "md_u.h" |
27 | #include "md_p.h" | |
4ccad7b1 | 28 | #include <ctype.h> |
64c4757e | 29 | |
82b27616 NB |
30 | #define REGISTER_DEV _IO (MD_MAJOR, 1) |
31 | #define START_MD _IO (MD_MAJOR, 2) | |
32 | #define STOP_MD _IO (MD_MAJOR, 3) | |
33 | ||
64c4757e NB |
34 | int Manage_ro(char *devname, int fd, int readonly) |
35 | { | |
682c7051 NB |
36 | /* switch to readonly or rw |
37 | * | |
38 | * requires >= 0.90.0 | |
39 | * first check that array is runing | |
40 | * use RESTART_ARRAY_RW or STOP_ARRAY_RO | |
41 | * | |
42 | */ | |
43 | mdu_array_info_t array; | |
0e600426 | 44 | #ifndef MDASSEMBLE |
e9dd1598 | 45 | struct mdinfo *mdi; |
0e600426 | 46 | #endif |
aba69144 | 47 | |
682c7051 NB |
48 | if (md_get_version(fd) < 9000) { |
49 | fprintf(stderr, Name ": need md driver version 0.90.0 or later\n"); | |
50 | return 1; | |
51 | } | |
0e600426 | 52 | #ifndef MDASSEMBLE |
e9dd1598 N |
53 | /* If this is an externally-manage array, we need to modify the |
54 | * metadata_version so that mdmon doesn't undo our change. | |
55 | */ | |
56 | mdi = sysfs_read(fd, -1, GET_LEVEL|GET_VERSION); | |
57 | if (mdi && | |
58 | mdi->array.major_version == -1 && | |
e9dd1598 N |
59 | is_subarray(mdi->text_version)) { |
60 | char vers[64]; | |
61 | strcpy(vers, "external:"); | |
62 | strcat(vers, mdi->text_version); | |
63 | if (readonly > 0) { | |
64 | int rv; | |
65 | /* We set readonly ourselves. */ | |
66 | vers[9] = '-'; | |
67 | sysfs_set_str(mdi, NULL, "metadata_version", vers); | |
68 | ||
69 | close(fd); | |
70 | rv = sysfs_set_str(mdi, NULL, "array_state", "readonly"); | |
71 | ||
72 | if (rv < 0) { | |
73 | fprintf(stderr, Name ": failed to set readonly for %s: %s\n", | |
74 | devname, strerror(errno)); | |
75 | ||
76 | vers[9] = mdi->text_version[0]; | |
77 | sysfs_set_str(mdi, NULL, "metadata_version", vers); | |
78 | return 1; | |
79 | } | |
80 | } else { | |
81 | char *cp; | |
82 | /* We cannot set read/write - must signal mdmon */ | |
83 | vers[9] = '/'; | |
84 | sysfs_set_str(mdi, NULL, "metadata_version", vers); | |
85 | ||
86 | cp = strchr(vers+10, '/'); | |
87 | if (*cp) | |
88 | *cp = 0; | |
89 | ping_monitor(vers+10); | |
9ea5a252 DW |
90 | if (mdi->array.level <= 0) |
91 | sysfs_set_str(mdi, NULL, "array_state", "active"); | |
e9dd1598 N |
92 | } |
93 | return 0; | |
94 | } | |
0e600426 | 95 | #endif |
682c7051 NB |
96 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { |
97 | fprintf(stderr, Name ": %s does not appear to be active.\n", | |
98 | devname); | |
99 | return 1; | |
100 | } | |
aba69144 | 101 | |
682c7051 NB |
102 | if (readonly>0) { |
103 | if (ioctl(fd, STOP_ARRAY_RO, NULL)) { | |
104 | fprintf(stderr, Name ": failed to set readonly for %s: %s\n", | |
105 | devname, strerror(errno)); | |
106 | return 1; | |
107 | } | |
108 | } else if (readonly < 0) { | |
109 | if (ioctl(fd, RESTART_ARRAY_RW, NULL)) { | |
82b27616 | 110 | fprintf(stderr, Name ": failed to set writable for %s: %s\n", |
682c7051 NB |
111 | devname, strerror(errno)); |
112 | return 1; | |
113 | } | |
114 | } | |
aba69144 | 115 | return 0; |
64c4757e NB |
116 | } |
117 | ||
435d4ebb LB |
118 | #ifndef MDASSEMBLE |
119 | ||
4ccad7b1 N |
120 | static void remove_devices(int devnum, char *path) |
121 | { | |
b1702f48 N |
122 | /* |
123 | * Remove names at 'path' - possibly with | |
124 | * partition suffixes - which link to the 'standard' | |
125 | * name for devnum. These were probably created | |
126 | * by mdadm when the array was assembled. | |
4ccad7b1 N |
127 | */ |
128 | char base[40]; | |
129 | char *path2; | |
130 | char link[1024]; | |
131 | int n; | |
132 | int part; | |
133 | char *be; | |
134 | char *pe; | |
135 | ||
b1702f48 N |
136 | if (!path) |
137 | return; | |
138 | ||
4ccad7b1 N |
139 | if (devnum >= 0) |
140 | sprintf(base, "/dev/md%d", devnum); | |
141 | else | |
142 | sprintf(base, "/dev/md_d%d", -1-devnum); | |
143 | be = base + strlen(base); | |
b1702f48 N |
144 | |
145 | path2 = malloc(strlen(path)+20); | |
146 | strcpy(path2, path); | |
147 | pe = path2 + strlen(path2); | |
4ccad7b1 N |
148 | |
149 | for (part = 0; part < 16; part++) { | |
150 | if (part) { | |
151 | sprintf(be, "p%d", part); | |
b1702f48 N |
152 | |
153 | if (isdigit(pe[-1])) | |
154 | sprintf(pe, "p%d", part); | |
155 | else | |
156 | sprintf(pe, "%d", part); | |
4ccad7b1 | 157 | } |
b1702f48 N |
158 | n = readlink(path2, link, sizeof(link)); |
159 | if (n && (int)strlen(base) == n && | |
160 | strncmp(link, base, n) == 0) | |
161 | unlink(path2); | |
4ccad7b1 | 162 | } |
0eb26465 | 163 | free(path2); |
4ccad7b1 N |
164 | } |
165 | ||
166 | ||
91f068bf | 167 | int Manage_runstop(char *devname, int fd, int runstop, int quiet) |
64c4757e | 168 | { |
682c7051 NB |
169 | /* Run or stop the array. array must already be configured |
170 | * required >= 0.90.0 | |
4b9d39fc N |
171 | * Only print failure messages if quiet == 0; |
172 | * quiet > 0 means really be quiet | |
173 | * quiet < 0 means we will try again if it fails. | |
682c7051 | 174 | */ |
682c7051 | 175 | mdu_param_t param; /* unused */ |
82b27616 NB |
176 | |
177 | if (runstop == -1 && md_get_version(fd) < 9000) { | |
178 | if (ioctl(fd, STOP_MD, 0)) { | |
4b9d39fc N |
179 | if (quiet == 0) fprintf(stderr, |
180 | Name ": stopping device %s " | |
181 | "failed: %s\n", | |
182 | devname, strerror(errno)); | |
82b27616 NB |
183 | return 1; |
184 | } | |
185 | } | |
aba69144 | 186 | |
682c7051 NB |
187 | if (md_get_version(fd) < 9000) { |
188 | fprintf(stderr, Name ": need md driver version 0.90.0 or later\n"); | |
189 | return 1; | |
190 | } | |
82b27616 | 191 | /* |
682c7051 NB |
192 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { |
193 | fprintf(stderr, Name ": %s does not appear to be active.\n", | |
194 | devname); | |
195 | return 1; | |
196 | } | |
82b27616 | 197 | */ |
682c7051 NB |
198 | if (runstop>0) { |
199 | if (ioctl(fd, RUN_ARRAY, ¶m)) { | |
200 | fprintf(stderr, Name ": failed to run array %s: %s\n", | |
201 | devname, strerror(errno)); | |
202 | return 1; | |
203 | } | |
8382f19b NB |
204 | if (quiet <= 0) |
205 | fprintf(stderr, Name ": started %s\n", devname); | |
682c7051 | 206 | } else if (runstop < 0){ |
8382f19b NB |
207 | struct map_ent *map = NULL; |
208 | struct stat stb; | |
daf7a3ce | 209 | struct mdinfo *mdi; |
4ccad7b1 | 210 | int devnum; |
daf7a3ce NB |
211 | /* If this is an mdmon managed array, just write 'inactive' |
212 | * to the array state and let mdmon clear up. | |
213 | */ | |
4ccad7b1 | 214 | devnum = fd2devnum(fd); |
daf7a3ce NB |
215 | mdi = sysfs_read(fd, -1, GET_LEVEL|GET_VERSION); |
216 | if (mdi && | |
217 | mdi->array.level > 0 && | |
3c558363 | 218 | is_subarray(mdi->text_version)) { |
daf7a3ce NB |
219 | /* This is mdmon managed. */ |
220 | close(fd); | |
221 | if (sysfs_set_str(mdi, NULL, | |
222 | "array_state", "inactive") < 0) { | |
4b9d39fc | 223 | if (quiet == 0) |
daf7a3ce | 224 | fprintf(stderr, Name |
4b9d39fc | 225 | ": failed to stop array %s: %s\n", |
daf7a3ce NB |
226 | devname, strerror(errno)); |
227 | return 1; | |
228 | } | |
229 | ||
230 | /* Give monitor a chance to act */ | |
c94709e8 | 231 | ping_monitor(mdi->text_version); |
daf7a3ce NB |
232 | |
233 | fd = open(devname, O_RDONLY); | |
ada6c239 N |
234 | } else if (mdi && |
235 | mdi->array.major_version == -1 && | |
236 | mdi->array.minor_version == -2 && | |
3c558363 | 237 | !is_subarray(mdi->text_version)) { |
430ea469 | 238 | struct mdstat_ent *mds, *m; |
ada6c239 N |
239 | /* container, possibly mdmon-managed. |
240 | * Make sure mdmon isn't opening it, which | |
241 | * would interfere with the 'stop' | |
242 | */ | |
243 | ping_monitor(mdi->sys_name); | |
430ea469 N |
244 | |
245 | /* now check that there are no existing arrays | |
246 | * which are members of this array | |
247 | */ | |
248 | mds = mdstat_read(0, 0); | |
249 | for (m=mds; m; m=m->next) | |
250 | if (m->metadata_version && | |
251 | strncmp(m->metadata_version, "external:", 9)==0 && | |
252 | is_subarray(m->metadata_version+9) && | |
253 | devname2devnum(m->metadata_version+10) == devnum) { | |
254 | if (!quiet) | |
255 | fprintf(stderr, Name | |
256 | ": Cannot stop container %s: " | |
257 | "member %s still active\n", | |
258 | devname, m->dev); | |
259 | free_mdstat(mds); | |
260 | if (mdi) | |
261 | sysfs_free(mdi); | |
262 | return 1; | |
263 | } | |
daf7a3ce | 264 | } |
daf7a3ce NB |
265 | |
266 | if (fd >= 0 && ioctl(fd, STOP_ARRAY, NULL)) { | |
37ea3936 | 267 | if (quiet == 0) { |
daf7a3ce | 268 | fprintf(stderr, Name |
4b9d39fc | 269 | ": failed to stop array %s: %s\n", |
91f068bf | 270 | devname, strerror(errno)); |
d927f3c4 NB |
271 | if (errno == EBUSY) |
272 | fprintf(stderr, "Perhaps a running " | |
273 | "process, mounted filesystem " | |
274 | "or active volume group?\n"); | |
275 | } | |
97590376 N |
276 | if (mdi) |
277 | sysfs_free(mdi); | |
682c7051 NB |
278 | return 1; |
279 | } | |
97590376 | 280 | /* prior to 2.6.28, KOBJ_CHANGE was not sent when an md array |
d49410d3 N |
281 | * was stopped, so We'll do it here just to be sure. Drop any |
282 | * partitions as well... | |
97590376 | 283 | */ |
d49410d3 N |
284 | if (fd >= 0) |
285 | ioctl(fd, BLKRRPART, 0); | |
97590376 N |
286 | if (mdi) |
287 | sysfs_uevent(mdi, "change"); | |
daf7a3ce | 288 | |
4ccad7b1 N |
289 | |
290 | if (devnum != NoMdDev && | |
291 | (stat("/dev/.udev", &stb) != 0 || | |
292 | check_env("MDADM_NO_UDEV"))) { | |
293 | struct map_ent *mp = map_by_devnum(&map, devnum); | |
294 | remove_devices(devnum, mp ? mp->path : NULL); | |
295 | } | |
296 | ||
297 | ||
ab56093f NB |
298 | if (quiet <= 0) |
299 | fprintf(stderr, Name ": stopped %s\n", devname); | |
4eb26970 DW |
300 | map_lock(&map); |
301 | map_remove(&map, devnum); | |
302 | map_unlock(&map); | |
682c7051 NB |
303 | } |
304 | return 0; | |
64c4757e NB |
305 | } |
306 | ||
dd0781e5 NB |
307 | int Manage_resize(char *devname, int fd, long long size, int raid_disks) |
308 | { | |
309 | mdu_array_info_t info; | |
310 | if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) { | |
311 | fprintf(stderr, Name ": Cannot get array information for %s: %s\n", | |
312 | devname, strerror(errno)); | |
313 | return 1; | |
314 | } | |
315 | if (size >= 0) | |
316 | info.size = size; | |
317 | if (raid_disks > 0) | |
318 | info.raid_disks = raid_disks; | |
319 | if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) { | |
320 | fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n", | |
321 | devname, strerror(errno)); | |
322 | return 1; | |
323 | } | |
324 | return 0; | |
b5e64645 | 325 | } |
dd0781e5 | 326 | |
64c4757e | 327 | int Manage_subdevs(char *devname, int fd, |
a655e550 | 328 | struct mddev_dev *devlist, int verbose, int test) |
cd29a5c8 | 329 | { |
682c7051 NB |
330 | /* do something to each dev. |
331 | * devmode can be | |
332 | * 'a' - add the device | |
333 | * try HOT_ADD_DISK | |
334 | * If that fails EINVAL, try ADD_NEW_DISK | |
335 | * 'r' - remove the device HOT_REMOVE_DISK | |
b80da661 NB |
336 | * device can be 'faulty' or 'detached' in which case all |
337 | * matching devices are removed. | |
682c7051 | 338 | * 'f' - set the device faulty SET_DISK_FAULTY |
b80da661 NB |
339 | * device can be 'detached' in which case any device that |
340 | * is inaccessible will be marked faulty. | |
98d27e39 N |
341 | * For 'f' and 'r', the device can also be a kernel-internal |
342 | * name such as 'sdb'. | |
682c7051 | 343 | */ |
a655e550 | 344 | struct mddev_dev *add_devlist = NULL; |
682c7051 NB |
345 | mdu_array_info_t array; |
346 | mdu_disk_info_t disc; | |
7a3be72f | 347 | unsigned long long array_size; |
a655e550 | 348 | struct mddev_dev *dv, *next = NULL; |
682c7051 | 349 | struct stat stb; |
b80da661 | 350 | int j, jnext = 0; |
cfad27a9 | 351 | int tfd = -1; |
3da92f27 | 352 | struct supertype *st, *tst; |
4725bc31 | 353 | char *subarray = NULL; |
fe80f49b NB |
354 | int duuid[4]; |
355 | int ouuid[4]; | |
f94d52f4 | 356 | int lfd = -1; |
98d27e39 | 357 | int sysfd = -1; |
7d2e6486 | 358 | int count = 0; /* number of actions taken */ |
682c7051 NB |
359 | |
360 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { | |
361 | fprintf(stderr, Name ": cannot get array info for %s\n", | |
362 | devname); | |
363 | return 1; | |
364 | } | |
3da92f27 | 365 | |
7a3be72f NB |
366 | /* array.size is only 32 bit and may be truncated. |
367 | * So read from sysfs if possible, and record number of sectors | |
368 | */ | |
369 | ||
370 | array_size = get_component_size(fd); | |
371 | if (array_size <= 0) | |
372 | array_size = array.size * 2; | |
373 | ||
4725bc31 | 374 | tst = super_by_fd(fd, &subarray); |
3da92f27 NB |
375 | if (!tst) { |
376 | fprintf(stderr, Name ": unsupport array - version %d.%d\n", | |
377 | array.major_version, array.minor_version); | |
378 | return 1; | |
379 | } | |
380 | ||
b3b4e8a7 | 381 | stb.st_rdev = 0; |
b80da661 | 382 | for (dv = devlist, j=0 ; dv; dv = next, j = jnext) { |
4a39c6f2 | 383 | unsigned long long ldsize; |
b80da661 NB |
384 | char dvname[20]; |
385 | char *dnprintable = dv->devname; | |
a4e13010 | 386 | char *add_dev = dv->devname; |
f94d52f4 | 387 | int err; |
8453e704 | 388 | int re_add_failed = 0; |
4a39c6f2 | 389 | |
b80da661 NB |
390 | next = dv->next; |
391 | jnext = 0; | |
392 | ||
393 | if (strcmp(dv->devname, "failed")==0 || | |
394 | strcmp(dv->devname, "faulty")==0) { | |
395 | if (dv->disposition != 'r') { | |
396 | fprintf(stderr, Name ": %s only meaningful " | |
397 | "with -r, not -%c\n", | |
398 | dv->devname, dv->disposition); | |
399 | return 1; | |
400 | } | |
401 | for (; j < array.raid_disks + array.nr_disks ; j++) { | |
f21e18ca | 402 | unsigned dev; |
b80da661 NB |
403 | disc.number = j; |
404 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
405 | continue; | |
406 | if (disc.major == 0 && disc.minor == 0) | |
407 | continue; | |
408 | if ((disc.state & 1) == 0) /* faulty */ | |
409 | continue; | |
b3b4e8a7 N |
410 | dev = makedev(disc.major, disc.minor); |
411 | if (stb.st_rdev == dev) | |
412 | /* already did that one */ | |
413 | continue; | |
414 | stb.st_rdev = dev; | |
b80da661 | 415 | next = dv; |
b3b4e8a7 N |
416 | /* same slot again next time - things might |
417 | * have reshuffled */ | |
418 | jnext = j; | |
b80da661 NB |
419 | sprintf(dvname,"%d:%d", disc.major, disc.minor); |
420 | dnprintable = dvname; | |
421 | break; | |
422 | } | |
423 | if (jnext == 0) | |
424 | continue; | |
425 | } else if (strcmp(dv->devname, "detached") == 0) { | |
426 | if (dv->disposition != 'r' && dv->disposition != 'f') { | |
427 | fprintf(stderr, Name ": %s only meaningful " | |
428 | "with -r of -f, not -%c\n", | |
429 | dv->devname, dv->disposition); | |
430 | return 1; | |
431 | } | |
432 | for (; j < array.raid_disks + array.nr_disks; j++) { | |
433 | int sfd; | |
f21e18ca | 434 | unsigned dev; |
b80da661 NB |
435 | disc.number = j; |
436 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
437 | continue; | |
438 | if (disc.major == 0 && disc.minor == 0) | |
439 | continue; | |
440 | sprintf(dvname,"%d:%d", disc.major, disc.minor); | |
441 | sfd = dev_open(dvname, O_RDONLY); | |
442 | if (sfd >= 0) { | |
443 | close(sfd); | |
444 | continue; | |
445 | } | |
446 | if (dv->disposition == 'f' && | |
447 | (disc.state & 1) == 1) /* already faulty */ | |
448 | continue; | |
449 | if (errno != ENXIO) | |
450 | continue; | |
b3b4e8a7 N |
451 | dev = makedev(disc.major, disc.minor); |
452 | if (stb.st_rdev == dev) | |
453 | /* already did that one */ | |
454 | continue; | |
455 | stb.st_rdev = dev; | |
b80da661 | 456 | next = dv; |
b3b4e8a7 N |
457 | /* same slot again next time - things might |
458 | * have reshuffled */ | |
459 | jnext = j; | |
b80da661 NB |
460 | dnprintable = dvname; |
461 | break; | |
462 | } | |
463 | if (jnext == 0) | |
464 | continue; | |
a4e13010 N |
465 | } else if (strcmp(dv->devname, "missing") == 0) { |
466 | if (dv->disposition != 'a' || dv->re_add == 0) { | |
467 | fprintf(stderr, Name ": 'missing' only meaningful " | |
468 | "with --re-add\n"); | |
469 | return 1; | |
470 | } | |
471 | if (add_devlist == NULL) | |
472 | add_devlist = conf_get_devs(); | |
473 | if (add_devlist == NULL) { | |
474 | fprintf(stderr, Name ": no devices to scan for missing members."); | |
475 | continue; | |
476 | } | |
477 | add_dev = add_devlist->devname; | |
478 | add_devlist = add_devlist->next; | |
479 | if (add_devlist != NULL) | |
480 | next = dv; | |
481 | if (stat(add_dev, &stb) < 0) | |
482 | continue; | |
98d27e39 | 483 | } else if (strchr(dv->devname, '/') == NULL && |
93601c43 | 484 | strchr(dv->devname, ':') == NULL && |
98d27e39 N |
485 | strlen(dv->devname) < 50) { |
486 | /* Assume this is a kernel-internal name like 'sda1' */ | |
487 | int found = 0; | |
488 | char dname[55]; | |
489 | if (dv->disposition != 'r' && dv->disposition != 'f') { | |
490 | fprintf(stderr, Name ": %s only meaningful " | |
cfad27a9 | 491 | "with -r or -f, not -%c\n", |
98d27e39 N |
492 | dv->devname, dv->disposition); |
493 | return 1; | |
494 | } | |
495 | ||
496 | sprintf(dname, "dev-%s", dv->devname); | |
497 | sysfd = sysfs_open(fd2devnum(fd), dname, "block/dev"); | |
498 | if (sysfd >= 0) { | |
499 | char dn[20]; | |
500 | int mj,mn; | |
501 | if (sysfs_fd_get_str(sysfd, dn, 20) > 0 && | |
502 | sscanf(dn, "%d:%d", &mj,&mn) == 2) { | |
503 | stb.st_rdev = makedev(mj,mn); | |
504 | found = 1; | |
505 | } | |
506 | close(sysfd); | |
507 | sysfd = -1; | |
508 | } | |
509 | if (!found) { | |
510 | sysfd = sysfs_open(fd2devnum(fd), dname, "state"); | |
511 | if (sysfd < 0) { | |
512 | fprintf(stderr, Name ": %s does not appear " | |
513 | "to be a component of %s\n", | |
514 | dv->devname, devname); | |
515 | return 1; | |
516 | } | |
517 | } | |
b80da661 NB |
518 | } else { |
519 | j = 0; | |
520 | ||
c7b47447 | 521 | tfd = dev_open(dv->devname, O_RDONLY); |
5a9de8db N |
522 | if (tfd < 0 && dv->disposition == 'r' && |
523 | lstat(dv->devname, &stb) == 0) | |
524 | /* Be happy, the lstat worked, that is | |
525 | * enough for --remove | |
526 | */ | |
527 | ; | |
528 | else { | |
529 | if (tfd < 0 || fstat(tfd, &stb) != 0) { | |
530 | fprintf(stderr, Name ": cannot find %s: %s\n", | |
531 | dv->devname, strerror(errno)); | |
532 | if (tfd >= 0) | |
533 | close(tfd); | |
534 | return 1; | |
535 | } | |
536 | close(tfd); | |
cfad27a9 | 537 | tfd = -1; |
b80da661 NB |
538 | } |
539 | if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
540 | fprintf(stderr, Name ": %s is not a " | |
541 | "block device.\n", | |
542 | dv->devname); | |
543 | return 1; | |
544 | } | |
682c7051 | 545 | } |
cd29a5c8 | 546 | switch(dv->disposition){ |
682c7051 | 547 | default: |
c913b90e NB |
548 | fprintf(stderr, Name ": internal error - devmode[%s]=%d\n", |
549 | dv->devname, dv->disposition); | |
682c7051 NB |
550 | return 1; |
551 | case 'a': | |
4a39c6f2 | 552 | /* add the device */ |
4725bc31 | 553 | if (subarray) { |
f7dd881f DW |
554 | fprintf(stderr, Name ": Cannot add disks to a" |
555 | " \'member\' array, perform this" | |
556 | " operation on the parent container\n"); | |
557 | return 1; | |
f94d52f4 | 558 | } |
f277ce36 | 559 | /* Make sure it isn't in use (in 2.6 or later) */ |
a4e13010 N |
560 | tfd = dev_open(add_dev, O_RDONLY|O_EXCL|O_DIRECT); |
561 | if (tfd < 0 && add_dev != dv->devname) | |
562 | continue; | |
0fbf459d | 563 | if (tfd < 0) { |
d7eaf49f NB |
564 | fprintf(stderr, Name ": Cannot open %s: %s\n", |
565 | dv->devname, strerror(errno)); | |
566 | return 1; | |
567 | } | |
3da92f27 | 568 | |
1686dc25 | 569 | st = dup_super(tst); |
3da92f27 | 570 | |
fe80f49b | 571 | if (array.not_persistent==0) |
3da92f27 NB |
572 | st->ss->load_super(st, tfd, NULL); |
573 | ||
a4e13010 N |
574 | if (add_dev == dv->devname) { |
575 | if (!get_dev_size(tfd, dv->devname, &ldsize)) { | |
576 | close(tfd); | |
577 | return 1; | |
578 | } | |
579 | } else if (!get_dev_size(tfd, NULL, &ldsize)) { | |
4a39c6f2 | 580 | close(tfd); |
cfad27a9 | 581 | tfd = -1; |
a4e13010 | 582 | continue; |
4a39c6f2 | 583 | } |
f94d52f4 NB |
584 | |
585 | if (!tst->ss->external && | |
586 | array.major_version == 0 && | |
60d9a174 | 587 | md_get_version(fd)%100 < 2) { |
a4e13010 | 588 | close(tfd); |
cfad27a9 | 589 | tfd = -1; |
892debc8 NB |
590 | if (ioctl(fd, HOT_ADD_DISK, |
591 | (unsigned long)stb.st_rdev)==0) { | |
dab6685f NB |
592 | if (verbose >= 0) |
593 | fprintf(stderr, Name ": hot added %s\n", | |
a4e13010 | 594 | add_dev); |
892debc8 NB |
595 | continue; |
596 | } | |
597 | ||
cd29a5c8 | 598 | fprintf(stderr, Name ": hot add failed for %s: %s\n", |
a4e13010 | 599 | add_dev, strerror(errno)); |
cd29a5c8 NB |
600 | return 1; |
601 | } | |
892debc8 | 602 | |
43dad3d6 | 603 | if (array.not_persistent == 0 || tst->ss->external) { |
4a39c6f2 | 604 | |
fe80f49b | 605 | /* need to find a sample superblock to copy, and |
43dad3d6 DW |
606 | * a spare slot to use. |
607 | * For 'external' array (well, container based), | |
608 | * We can just load the metadata for the array. | |
fe80f49b | 609 | */ |
a4e13010 N |
610 | if (tst->sb) |
611 | /* already loaded */; | |
612 | else if (tst->ss->external) { | |
0fb69d1d | 613 | tst->ss->load_container(tst, fd, NULL); |
43dad3d6 | 614 | } else for (j = 0; j < tst->max_devs; j++) { |
fe80f49b NB |
615 | char *dev; |
616 | int dfd; | |
617 | disc.number = j; | |
618 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
619 | continue; | |
620 | if (disc.major==0 && disc.minor==0) | |
621 | continue; | |
622 | if ((disc.state & 4)==0) continue; /* sync */ | |
623 | /* Looks like a good device to try */ | |
16c6fa80 | 624 | dev = map_dev(disc.major, disc.minor, 1); |
fe80f49b | 625 | if (!dev) continue; |
16c6fa80 | 626 | dfd = dev_open(dev, O_RDONLY); |
fe80f49b | 627 | if (dfd < 0) continue; |
3da92f27 NB |
628 | if (tst->ss->load_super(tst, dfd, |
629 | NULL)) { | |
fe80f49b NB |
630 | close(dfd); |
631 | continue; | |
632 | } | |
892debc8 | 633 | close(dfd); |
fe80f49b NB |
634 | break; |
635 | } | |
43dad3d6 | 636 | /* FIXME this is a bad test to be using */ |
3da92f27 | 637 | if (!tst->sb) { |
a4e13010 | 638 | close(tfd); |
fe80f49b NB |
639 | fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n"); |
640 | return 1; | |
641 | } | |
2a528478 N |
642 | |
643 | /* Make sure device is large enough */ | |
644 | if (tst->ss->avail_size(tst, ldsize/512) < | |
645 | array_size) { | |
a4e13010 | 646 | close(tfd); |
cfad27a9 | 647 | tfd = -1; |
a4e13010 N |
648 | if (add_dev != dv->devname) |
649 | continue; | |
2a528478 N |
650 | fprintf(stderr, Name ": %s not large enough to join array\n", |
651 | dv->devname); | |
652 | return 1; | |
653 | } | |
654 | ||
fe80f49b NB |
655 | /* Possibly this device was recently part of the array |
656 | * and was temporarily removed, and is now being re-added. | |
657 | * If so, we can simply re-add it. | |
658 | */ | |
3da92f27 | 659 | tst->ss->uuid_from_super(tst, duuid); |
7eae7080 NB |
660 | |
661 | /* re-add doesn't work for version-1 superblocks | |
662 | * before 2.6.18 :-( | |
663 | */ | |
664 | if (array.major_version == 1 && | |
665 | get_linux_version() <= 2006018) | |
666 | ; | |
3da92f27 | 667 | else if (st->sb) { |
8453e704 | 668 | struct mdinfo mdi; |
a5d85af7 | 669 | st->ss->getinfo_super(st, &mdi, NULL); |
3da92f27 | 670 | st->ss->uuid_from_super(st, ouuid); |
8453e704 N |
671 | if ((mdi.disk.state & (1<<MD_DISK_ACTIVE)) && |
672 | !(mdi.disk.state & (1<<MD_DISK_FAULTY)) && | |
673 | memcmp(duuid, ouuid, sizeof(ouuid))==0) { | |
674 | /* look like it is worth a try. Need to | |
675 | * make sure kernel will accept it though. | |
fe80f49b | 676 | */ |
8453e704 N |
677 | disc.number = mdi.disk.number; |
678 | if (ioctl(fd, GET_DISK_INFO, &disc) != 0 | |
679 | || disc.major != 0 || disc.minor != 0 | |
680 | || !enough_fd(fd)) | |
681 | goto skip_re_add; | |
fe80f49b NB |
682 | disc.major = major(stb.st_rdev); |
683 | disc.minor = minor(stb.st_rdev); | |
684 | disc.number = mdi.disk.number; | |
685 | disc.raid_disk = mdi.disk.raid_disk; | |
686 | disc.state = mdi.disk.state; | |
b3d31955 | 687 | if (dv->writemostly == 1) |
4d20d744 | 688 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; |
b3d31955 N |
689 | if (dv->writemostly == 2) |
690 | disc.state &= ~(1 << MD_DISK_WRITEMOSTLY); | |
a4e13010 N |
691 | remove_partitions(tfd); |
692 | close(tfd); | |
693 | tfd = -1; | |
5c64fcb5 N |
694 | /* don't even try if disk is marked as faulty */ |
695 | errno = 0; | |
8453e704 | 696 | if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) { |
fe80f49b | 697 | if (verbose >= 0) |
a4e13010 | 698 | fprintf(stderr, Name ": re-added %s\n", add_dev); |
7d2e6486 | 699 | count++; |
308e1801 | 700 | continue; |
fe80f49b | 701 | } |
c9f39c1b N |
702 | if (errno == ENOMEM || errno == EROFS) { |
703 | fprintf(stderr, Name ": add new device failed for %s: %s\n", | |
a4e13010 N |
704 | add_dev, strerror(errno)); |
705 | if (add_dev != dv->devname) | |
706 | continue; | |
c9f39c1b N |
707 | return 1; |
708 | } | |
8453e704 N |
709 | skip_re_add: |
710 | re_add_failed = 1; | |
fe80f49b | 711 | } |
892debc8 | 712 | } |
a4e13010 N |
713 | if (add_dev != dv->devname) { |
714 | if (verbose > 0) | |
715 | fprintf(stderr, Name | |
716 | ": --re-add for %s to %s is not possible\n", | |
717 | add_dev, devname); | |
cfad27a9 | 718 | if (tfd >= 0) { |
a4e13010 | 719 | close(tfd); |
cfad27a9 DL |
720 | tfd = -1; |
721 | } | |
a4e13010 N |
722 | continue; |
723 | } | |
751fd6c0 | 724 | if (dv->re_add) { |
a4e13010 N |
725 | if (tfd >= 0) |
726 | close(tfd); | |
751fd6c0 N |
727 | fprintf(stderr, Name |
728 | ": --re-add for %s to %s is not possible\n", | |
729 | dv->devname, devname); | |
730 | return 1; | |
731 | } | |
8453e704 N |
732 | if (re_add_failed) { |
733 | fprintf(stderr, Name ": %s reports being an active member for %s, but a --re-add fails.\n", | |
734 | dv->devname, devname); | |
735 | fprintf(stderr, Name ": not performing --add as that would convert %s in to a spare.\n", | |
736 | dv->devname); | |
737 | fprintf(stderr, Name ": To make this a spare, use \"mdadm --zero-superblock %s\" first.\n", | |
738 | dv->devname); | |
739 | if (tfd >= 0) | |
740 | close(tfd); | |
741 | return 1; | |
742 | } | |
4a39c6f2 NB |
743 | } else { |
744 | /* non-persistent. Must ensure that new drive | |
745 | * is at least array.size big. | |
746 | */ | |
7a3be72f | 747 | if (ldsize/512 < array_size) { |
4a39c6f2 NB |
748 | fprintf(stderr, Name ": %s not large enough to join array\n", |
749 | dv->devname); | |
cfad27a9 DL |
750 | if (tfd >= 0) |
751 | close(tfd); | |
4a39c6f2 NB |
752 | return 1; |
753 | } | |
892debc8 | 754 | } |
a4e13010 N |
755 | /* committed to really trying this device now*/ |
756 | if (tfd >= 0) { | |
757 | remove_partitions(tfd); | |
758 | close(tfd); | |
cfad27a9 | 759 | tfd = -1; |
a4e13010 | 760 | } |
7eae7080 NB |
761 | /* in 2.6.17 and earlier, version-1 superblocks won't |
762 | * use the number we write, but will choose a free number. | |
763 | * we must choose the same free number, which requires | |
764 | * starting at 'raid_disks' and counting up | |
765 | */ | |
3da92f27 | 766 | for (j = array.raid_disks; j< tst->max_devs; j++) { |
aa88f531 | 767 | disc.number = j; |
682c7051 NB |
768 | if (ioctl(fd, GET_DISK_INFO, &disc)) |
769 | break; | |
770 | if (disc.major==0 && disc.minor==0) | |
771 | break; | |
772 | if (disc.state & 8) /* removed */ | |
773 | break; | |
774 | } | |
0df46c2a NB |
775 | disc.major = major(stb.st_rdev); |
776 | disc.minor = minor(stb.st_rdev); | |
892debc8 NB |
777 | disc.number =j; |
778 | disc.state = 0; | |
43dad3d6 | 779 | if (array.not_persistent==0 || tst->ss->external) { |
111d01fc | 780 | int dfd; |
b3d31955 | 781 | if (dv->writemostly == 1) |
fe80f49b | 782 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; |
3b435195 | 783 | dfd = dev_open(dv->devname, O_RDWR | O_EXCL|O_DIRECT); |
f20c3968 DW |
784 | if (tst->ss->add_to_super(tst, &disc, dfd, |
785 | dv->devname)) { | |
f20c3968 DW |
786 | close(dfd); |
787 | return 1; | |
788 | } | |
111d01fc | 789 | /* write_init_super will close 'dfd' */ |
43dad3d6 DW |
790 | if (tst->ss->external) |
791 | /* mdmon will write the metadata */ | |
792 | close(dfd); | |
793 | else if (tst->ss->write_init_super(tst)) | |
fe80f49b NB |
794 | return 1; |
795 | } else if (dv->re_add) { | |
796 | /* this had better be raid1. | |
797 | * As we are "--re-add"ing we must find a spare slot | |
798 | * to fill. | |
799 | */ | |
800 | char *used = malloc(array.raid_disks); | |
801 | memset(used, 0, array.raid_disks); | |
3da92f27 | 802 | for (j=0; j< tst->max_devs; j++) { |
fe80f49b NB |
803 | mdu_disk_info_t disc2; |
804 | disc2.number = j; | |
805 | if (ioctl(fd, GET_DISK_INFO, &disc2)) | |
806 | continue; | |
807 | if (disc2.major==0 && disc2.minor==0) | |
808 | continue; | |
809 | if (disc2.state & 8) /* removed */ | |
810 | continue; | |
811 | if (disc2.raid_disk < 0) | |
812 | continue; | |
813 | if (disc2.raid_disk > array.raid_disks) | |
814 | continue; | |
815 | used[disc2.raid_disk] = 1; | |
816 | } | |
817 | for (j=0 ; j<array.raid_disks; j++) | |
818 | if (!used[j]) { | |
819 | disc.raid_disk = j; | |
820 | disc.state |= (1<<MD_DISK_SYNC); | |
821 | break; | |
822 | } | |
0eb26465 | 823 | free(used); |
fe80f49b | 824 | } |
b3d31955 | 825 | if (dv->writemostly == 1) |
d8def61c | 826 | disc.state |= (1 << MD_DISK_WRITEMOSTLY); |
43dad3d6 DW |
827 | if (tst->ss->external) { |
828 | /* add a disk to an external metadata container | |
829 | * only if mdmon is around to see it | |
830 | */ | |
831 | struct mdinfo new_mdi; | |
832 | struct mdinfo *sra; | |
833 | int container_fd; | |
834 | int devnum = fd2devnum(fd); | |
835 | ||
836 | container_fd = open_dev_excl(devnum); | |
837 | if (container_fd < 0) { | |
838 | fprintf(stderr, Name ": add failed for %s:" | |
839 | " could not get exclusive access to container\n", | |
840 | dv->devname); | |
841 | return 1; | |
842 | } | |
843 | ||
844 | if (!mdmon_running(devnum)) { | |
845 | fprintf(stderr, Name ": add failed for %s: mdmon not running\n", | |
846 | dv->devname); | |
847 | close(container_fd); | |
848 | return 1; | |
849 | } | |
850 | ||
851 | sra = sysfs_read(container_fd, -1, 0); | |
852 | if (!sra) { | |
853 | fprintf(stderr, Name ": add failed for %s: sysfs_read failed\n", | |
854 | dv->devname); | |
855 | close(container_fd); | |
856 | return 1; | |
857 | } | |
858 | sra->array.level = LEVEL_CONTAINER; | |
859 | /* Need to set data_offset and component_size */ | |
a5d85af7 | 860 | tst->ss->getinfo_super(tst, &new_mdi, NULL); |
43dad3d6 DW |
861 | new_mdi.disk.major = disc.major; |
862 | new_mdi.disk.minor = disc.minor; | |
d23534e4 | 863 | new_mdi.recovery_start = 0; |
462906cd | 864 | if (sysfs_add_disk(sra, &new_mdi, 0) != 0) { |
43dad3d6 DW |
865 | fprintf(stderr, Name ": add new device to external metadata" |
866 | " failed for %s\n", dv->devname); | |
867 | close(container_fd); | |
868 | return 1; | |
869 | } | |
870 | ping_monitor(devnum2devname(devnum)); | |
871 | sysfs_free(sra); | |
872 | close(container_fd); | |
873 | } else if (ioctl(fd, ADD_NEW_DISK, &disc)) { | |
f277ce36 NB |
874 | fprintf(stderr, Name ": add new device failed for %s as %d: %s\n", |
875 | dv->devname, j, strerror(errno)); | |
682c7051 NB |
876 | return 1; |
877 | } | |
dab6685f NB |
878 | if (verbose >= 0) |
879 | fprintf(stderr, Name ": added %s\n", dv->devname); | |
682c7051 NB |
880 | break; |
881 | ||
882 | case 'r': | |
883 | /* hot remove */ | |
4725bc31 | 884 | if (subarray) { |
f7dd881f DW |
885 | fprintf(stderr, Name ": Cannot remove disks from a" |
886 | " \'member\' array, perform this" | |
887 | " operation on the parent container\n"); | |
98d27e39 N |
888 | if (sysfd >= 0) |
889 | close(sysfd); | |
f7dd881f | 890 | return 1; |
f94d52f4 NB |
891 | } |
892 | if (tst->ss->external) { | |
893 | /* To remove a device from a container, we must | |
894 | * check that it isn't in use in an array. | |
895 | * This involves looking in the 'holders' | |
896 | * directory - there must be just one entry, | |
897 | * the container. | |
898 | * To ensure that it doesn't get used as a | |
899 | * hold spare while we are checking, we | |
900 | * get an O_EXCL open on the container | |
901 | */ | |
902 | int dnum = fd2devnum(fd); | |
903 | lfd = open_dev_excl(dnum); | |
904 | if (lfd < 0) { | |
905 | fprintf(stderr, Name | |
906 | ": Cannot get exclusive access " | |
907 | " to container - odd\n"); | |
98d27e39 N |
908 | if (sysfd >= 0) |
909 | close(sysfd); | |
f94d52f4 NB |
910 | return 1; |
911 | } | |
85f9b5f7 DW |
912 | /* in the detached case it is not possible to |
913 | * check if we are the unique holder, so just | |
914 | * rely on the 'detached' checks | |
915 | */ | |
916 | if (strcmp(dv->devname, "detached") == 0 || | |
98d27e39 | 917 | sysfd >= 0 || |
85f9b5f7 DW |
918 | sysfs_unique_holder(dnum, stb.st_rdev)) |
919 | /* pass */; | |
920 | else { | |
f94d52f4 NB |
921 | fprintf(stderr, Name |
922 | ": %s is %s, cannot remove.\n", | |
923 | dnprintable, | |
924 | errno == EEXIST ? "still in use": | |
925 | "not a member"); | |
926 | close(lfd); | |
927 | return 1; | |
928 | } | |
929 | } | |
82b27616 | 930 | /* FIXME check that it is a current member */ |
98d27e39 N |
931 | if (sysfd >= 0) { |
932 | /* device has been removed and we don't know | |
933 | * the major:minor number | |
934 | */ | |
935 | int n = write(sysfd, "remove", 6); | |
936 | if (n != 6) | |
f94d52f4 | 937 | err = -1; |
98d27e39 N |
938 | else |
939 | err = 0; | |
940 | close(sysfd); | |
941 | sysfd = -1; | |
942 | } else { | |
943 | err = ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev); | |
944 | if (err && errno == ENODEV) { | |
945 | /* Old kernels rejected this if no personality | |
946 | * registered */ | |
947 | struct mdinfo *sra = sysfs_read(fd, 0, GET_DEVS); | |
948 | struct mdinfo *dv = NULL; | |
949 | if (sra) | |
950 | dv = sra->devs; | |
951 | for ( ; dv ; dv=dv->next) | |
f21e18ca N |
952 | if (dv->disk.major == (int)major(stb.st_rdev) && |
953 | dv->disk.minor == (int)minor(stb.st_rdev)) | |
98d27e39 N |
954 | break; |
955 | if (dv) | |
956 | err = sysfs_set_str(sra, dv, | |
957 | "state", "remove"); | |
958 | else | |
959 | err = -1; | |
960 | if (sra) | |
961 | sysfs_free(sra); | |
962 | } | |
f94d52f4 NB |
963 | } |
964 | if (err) { | |
b80da661 NB |
965 | fprintf(stderr, Name ": hot remove failed " |
966 | "for %s: %s\n", dnprintable, | |
967 | strerror(errno)); | |
f94d52f4 NB |
968 | if (lfd >= 0) |
969 | close(lfd); | |
682c7051 NB |
970 | return 1; |
971 | } | |
313a4a82 DW |
972 | if (tst->ss->external) { |
973 | /* | |
974 | * Before dropping our exclusive open we make an | |
975 | * attempt at preventing mdmon from seeing an | |
976 | * 'add' event before reconciling this 'remove' | |
977 | * event. | |
978 | */ | |
979 | char *name = devnum2devname(fd2devnum(fd)); | |
980 | ||
981 | if (!name) { | |
982 | fprintf(stderr, Name ": unable to get container name\n"); | |
983 | return 1; | |
984 | } | |
985 | ||
986 | ping_manager(name); | |
987 | free(name); | |
988 | } | |
98d27e39 N |
989 | if (lfd >= 0) |
990 | close(lfd); | |
7d2e6486 | 991 | count++; |
dab6685f | 992 | if (verbose >= 0) |
29ba4804 N |
993 | fprintf(stderr, Name ": hot removed %s from %s\n", |
994 | dnprintable, devname); | |
682c7051 NB |
995 | break; |
996 | ||
997 | case 'f': /* set faulty */ | |
998 | /* FIXME check current member */ | |
98d27e39 N |
999 | if ((sysfd >= 0 && write(sysfd, "faulty", 6) != 6) || |
1000 | (sysfd < 0 && ioctl(fd, SET_DISK_FAULTY, | |
1001 | (unsigned long) stb.st_rdev))) { | |
b83d95f3 | 1002 | fprintf(stderr, Name ": set device faulty failed for %s: %s\n", |
b80da661 | 1003 | dnprintable, strerror(errno)); |
98d27e39 N |
1004 | if (sysfd >= 0) |
1005 | close(sysfd); | |
682c7051 NB |
1006 | return 1; |
1007 | } | |
98d27e39 N |
1008 | if (sysfd >= 0) |
1009 | close(sysfd); | |
1010 | sysfd = -1; | |
7d2e6486 | 1011 | count++; |
dab6685f NB |
1012 | if (verbose >= 0) |
1013 | fprintf(stderr, Name ": set %s faulty in %s\n", | |
b80da661 | 1014 | dnprintable, devname); |
682c7051 NB |
1015 | break; |
1016 | } | |
1017 | } | |
7d2e6486 N |
1018 | if (test && count == 0) |
1019 | return 2; | |
682c7051 | 1020 | return 0; |
64c4757e | 1021 | } |
1f48664b NB |
1022 | |
1023 | int autodetect(void) | |
1024 | { | |
1025 | /* Open any md device, and issue the RAID_AUTORUN ioctl */ | |
1026 | int rv = 1; | |
1027 | int fd = dev_open("9:0", O_RDONLY); | |
1028 | if (fd >= 0) { | |
1029 | if (ioctl(fd, RAID_AUTORUN, 0) == 0) | |
1030 | rv = 0; | |
1031 | close(fd); | |
1032 | } | |
1033 | return rv; | |
1034 | } | |
aa534678 | 1035 | |
fa56eddb | 1036 | int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet) |
aa534678 DW |
1037 | { |
1038 | struct supertype supertype, *st = &supertype; | |
1039 | int fd, rv = 2; | |
1040 | ||
1041 | memset(st, 0, sizeof(*st)); | |
aa534678 | 1042 | |
feab51f8 | 1043 | fd = open_subarray(dev, subarray, st, quiet); |
aa534678 DW |
1044 | if (fd < 0) |
1045 | return 2; | |
1046 | ||
1047 | if (!st->ss->update_subarray) { | |
1048 | if (!quiet) | |
1049 | fprintf(stderr, | |
1050 | Name ": Operation not supported for %s metadata\n", | |
1051 | st->ss->name); | |
1052 | goto free_super; | |
1053 | } | |
1054 | ||
1055 | if (mdmon_running(st->devnum)) | |
1056 | st->update_tail = &st->updates; | |
1057 | ||
a951a4f7 | 1058 | rv = st->ss->update_subarray(st, subarray, update, ident); |
aa534678 DW |
1059 | |
1060 | if (rv) { | |
1061 | if (!quiet) | |
1062 | fprintf(stderr, Name ": Failed to update %s of subarray-%s in %s\n", | |
1063 | update, subarray, dev); | |
1064 | } else if (st->update_tail) | |
1065 | flush_metadata_updates(st); | |
1066 | else | |
1067 | st->ss->sync_metadata(st); | |
1068 | ||
1069 | if (rv == 0 && strcmp(update, "name") == 0 && !quiet) | |
1070 | fprintf(stderr, | |
1071 | Name ": Updated subarray-%s name from %s, UUIDs may have changed\n", | |
1072 | subarray, dev); | |
1073 | ||
1074 | free_super: | |
1075 | st->ss->free_super(st); | |
1076 | close(fd); | |
1077 | ||
1078 | return rv; | |
1079 | } | |
435d4ebb | 1080 | #endif |