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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, |
833bb0f8 N |
328 | struct mddev_dev *devlist, int verbose, int test, |
329 | char *update) | |
cd29a5c8 | 330 | { |
682c7051 NB |
331 | /* do something to each dev. |
332 | * devmode can be | |
333 | * 'a' - add the device | |
334 | * try HOT_ADD_DISK | |
335 | * If that fails EINVAL, try ADD_NEW_DISK | |
336 | * 'r' - remove the device HOT_REMOVE_DISK | |
b80da661 NB |
337 | * device can be 'faulty' or 'detached' in which case all |
338 | * matching devices are removed. | |
682c7051 | 339 | * 'f' - set the device faulty SET_DISK_FAULTY |
b80da661 NB |
340 | * device can be 'detached' in which case any device that |
341 | * is inaccessible will be marked faulty. | |
98d27e39 N |
342 | * For 'f' and 'r', the device can also be a kernel-internal |
343 | * name such as 'sdb'. | |
682c7051 | 344 | */ |
a655e550 | 345 | struct mddev_dev *add_devlist = NULL; |
682c7051 NB |
346 | mdu_array_info_t array; |
347 | mdu_disk_info_t disc; | |
7a3be72f | 348 | unsigned long long array_size; |
a655e550 | 349 | struct mddev_dev *dv, *next = NULL; |
682c7051 | 350 | struct stat stb; |
b80da661 | 351 | int j, jnext = 0; |
cfad27a9 | 352 | int tfd = -1; |
3da92f27 | 353 | struct supertype *st, *tst; |
4725bc31 | 354 | char *subarray = NULL; |
fe80f49b NB |
355 | int duuid[4]; |
356 | int ouuid[4]; | |
f94d52f4 | 357 | int lfd = -1; |
98d27e39 | 358 | int sysfd = -1; |
7d2e6486 | 359 | int count = 0; /* number of actions taken */ |
682c7051 NB |
360 | |
361 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { | |
362 | fprintf(stderr, Name ": cannot get array info for %s\n", | |
363 | devname); | |
364 | return 1; | |
365 | } | |
3da92f27 | 366 | |
7a3be72f NB |
367 | /* array.size is only 32 bit and may be truncated. |
368 | * So read from sysfs if possible, and record number of sectors | |
369 | */ | |
370 | ||
371 | array_size = get_component_size(fd); | |
372 | if (array_size <= 0) | |
373 | array_size = array.size * 2; | |
374 | ||
4725bc31 | 375 | tst = super_by_fd(fd, &subarray); |
3da92f27 NB |
376 | if (!tst) { |
377 | fprintf(stderr, Name ": unsupport array - version %d.%d\n", | |
378 | array.major_version, array.minor_version); | |
379 | return 1; | |
380 | } | |
381 | ||
b3b4e8a7 | 382 | stb.st_rdev = 0; |
b80da661 | 383 | for (dv = devlist, j=0 ; dv; dv = next, j = jnext) { |
4a39c6f2 | 384 | unsigned long long ldsize; |
b80da661 NB |
385 | char dvname[20]; |
386 | char *dnprintable = dv->devname; | |
a4e13010 | 387 | char *add_dev = dv->devname; |
f94d52f4 | 388 | int err; |
8453e704 | 389 | int re_add_failed = 0; |
4a39c6f2 | 390 | |
b80da661 NB |
391 | next = dv->next; |
392 | jnext = 0; | |
393 | ||
394 | if (strcmp(dv->devname, "failed")==0 || | |
395 | strcmp(dv->devname, "faulty")==0) { | |
396 | if (dv->disposition != 'r') { | |
397 | fprintf(stderr, Name ": %s only meaningful " | |
398 | "with -r, not -%c\n", | |
399 | dv->devname, dv->disposition); | |
400 | return 1; | |
401 | } | |
402 | for (; j < array.raid_disks + array.nr_disks ; j++) { | |
f21e18ca | 403 | unsigned dev; |
b80da661 NB |
404 | disc.number = j; |
405 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
406 | continue; | |
407 | if (disc.major == 0 && disc.minor == 0) | |
408 | continue; | |
409 | if ((disc.state & 1) == 0) /* faulty */ | |
410 | continue; | |
b3b4e8a7 N |
411 | dev = makedev(disc.major, disc.minor); |
412 | if (stb.st_rdev == dev) | |
413 | /* already did that one */ | |
414 | continue; | |
415 | stb.st_rdev = dev; | |
b80da661 | 416 | next = dv; |
b3b4e8a7 N |
417 | /* same slot again next time - things might |
418 | * have reshuffled */ | |
419 | jnext = j; | |
b80da661 NB |
420 | sprintf(dvname,"%d:%d", disc.major, disc.minor); |
421 | dnprintable = dvname; | |
422 | break; | |
423 | } | |
424 | if (jnext == 0) | |
425 | continue; | |
426 | } else if (strcmp(dv->devname, "detached") == 0) { | |
427 | if (dv->disposition != 'r' && dv->disposition != 'f') { | |
428 | fprintf(stderr, Name ": %s only meaningful " | |
429 | "with -r of -f, not -%c\n", | |
430 | dv->devname, dv->disposition); | |
431 | return 1; | |
432 | } | |
433 | for (; j < array.raid_disks + array.nr_disks; j++) { | |
434 | int sfd; | |
f21e18ca | 435 | unsigned dev; |
b80da661 NB |
436 | disc.number = j; |
437 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
438 | continue; | |
439 | if (disc.major == 0 && disc.minor == 0) | |
440 | continue; | |
441 | sprintf(dvname,"%d:%d", disc.major, disc.minor); | |
442 | sfd = dev_open(dvname, O_RDONLY); | |
443 | if (sfd >= 0) { | |
444 | close(sfd); | |
445 | continue; | |
446 | } | |
447 | if (dv->disposition == 'f' && | |
448 | (disc.state & 1) == 1) /* already faulty */ | |
449 | continue; | |
450 | if (errno != ENXIO) | |
451 | continue; | |
b3b4e8a7 N |
452 | dev = makedev(disc.major, disc.minor); |
453 | if (stb.st_rdev == dev) | |
454 | /* already did that one */ | |
455 | continue; | |
456 | stb.st_rdev = dev; | |
b80da661 | 457 | next = dv; |
b3b4e8a7 N |
458 | /* same slot again next time - things might |
459 | * have reshuffled */ | |
460 | jnext = j; | |
b80da661 NB |
461 | dnprintable = dvname; |
462 | break; | |
463 | } | |
464 | if (jnext == 0) | |
465 | continue; | |
a4e13010 N |
466 | } else if (strcmp(dv->devname, "missing") == 0) { |
467 | if (dv->disposition != 'a' || dv->re_add == 0) { | |
468 | fprintf(stderr, Name ": 'missing' only meaningful " | |
469 | "with --re-add\n"); | |
470 | return 1; | |
471 | } | |
472 | if (add_devlist == NULL) | |
473 | add_devlist = conf_get_devs(); | |
474 | if (add_devlist == NULL) { | |
475 | fprintf(stderr, Name ": no devices to scan for missing members."); | |
476 | continue; | |
477 | } | |
478 | add_dev = add_devlist->devname; | |
479 | add_devlist = add_devlist->next; | |
480 | if (add_devlist != NULL) | |
481 | next = dv; | |
482 | if (stat(add_dev, &stb) < 0) | |
483 | continue; | |
98d27e39 | 484 | } else if (strchr(dv->devname, '/') == NULL && |
93601c43 | 485 | strchr(dv->devname, ':') == NULL && |
98d27e39 N |
486 | strlen(dv->devname) < 50) { |
487 | /* Assume this is a kernel-internal name like 'sda1' */ | |
488 | int found = 0; | |
489 | char dname[55]; | |
490 | if (dv->disposition != 'r' && dv->disposition != 'f') { | |
491 | fprintf(stderr, Name ": %s only meaningful " | |
cfad27a9 | 492 | "with -r or -f, not -%c\n", |
98d27e39 N |
493 | dv->devname, dv->disposition); |
494 | return 1; | |
495 | } | |
496 | ||
497 | sprintf(dname, "dev-%s", dv->devname); | |
498 | sysfd = sysfs_open(fd2devnum(fd), dname, "block/dev"); | |
499 | if (sysfd >= 0) { | |
500 | char dn[20]; | |
501 | int mj,mn; | |
502 | if (sysfs_fd_get_str(sysfd, dn, 20) > 0 && | |
503 | sscanf(dn, "%d:%d", &mj,&mn) == 2) { | |
504 | stb.st_rdev = makedev(mj,mn); | |
505 | found = 1; | |
506 | } | |
507 | close(sysfd); | |
508 | sysfd = -1; | |
509 | } | |
510 | if (!found) { | |
511 | sysfd = sysfs_open(fd2devnum(fd), dname, "state"); | |
512 | if (sysfd < 0) { | |
513 | fprintf(stderr, Name ": %s does not appear " | |
514 | "to be a component of %s\n", | |
515 | dv->devname, devname); | |
516 | return 1; | |
517 | } | |
518 | } | |
b80da661 NB |
519 | } else { |
520 | j = 0; | |
521 | ||
c7b47447 | 522 | tfd = dev_open(dv->devname, O_RDONLY); |
5a9de8db N |
523 | if (tfd < 0 && dv->disposition == 'r' && |
524 | lstat(dv->devname, &stb) == 0) | |
525 | /* Be happy, the lstat worked, that is | |
526 | * enough for --remove | |
527 | */ | |
528 | ; | |
529 | else { | |
530 | if (tfd < 0 || fstat(tfd, &stb) != 0) { | |
531 | fprintf(stderr, Name ": cannot find %s: %s\n", | |
532 | dv->devname, strerror(errno)); | |
533 | if (tfd >= 0) | |
534 | close(tfd); | |
535 | return 1; | |
536 | } | |
537 | close(tfd); | |
cfad27a9 | 538 | tfd = -1; |
b80da661 NB |
539 | } |
540 | if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
541 | fprintf(stderr, Name ": %s is not a " | |
542 | "block device.\n", | |
543 | dv->devname); | |
544 | return 1; | |
545 | } | |
682c7051 | 546 | } |
cd29a5c8 | 547 | switch(dv->disposition){ |
682c7051 | 548 | default: |
c913b90e NB |
549 | fprintf(stderr, Name ": internal error - devmode[%s]=%d\n", |
550 | dv->devname, dv->disposition); | |
682c7051 NB |
551 | return 1; |
552 | case 'a': | |
4a39c6f2 | 553 | /* add the device */ |
4725bc31 | 554 | if (subarray) { |
f7dd881f DW |
555 | fprintf(stderr, Name ": Cannot add disks to a" |
556 | " \'member\' array, perform this" | |
557 | " operation on the parent container\n"); | |
558 | return 1; | |
f94d52f4 | 559 | } |
f277ce36 | 560 | /* Make sure it isn't in use (in 2.6 or later) */ |
a4e13010 N |
561 | tfd = dev_open(add_dev, O_RDONLY|O_EXCL|O_DIRECT); |
562 | if (tfd < 0 && add_dev != dv->devname) | |
563 | continue; | |
0fbf459d | 564 | if (tfd < 0) { |
d7eaf49f NB |
565 | fprintf(stderr, Name ": Cannot open %s: %s\n", |
566 | dv->devname, strerror(errno)); | |
567 | return 1; | |
568 | } | |
3da92f27 | 569 | |
1686dc25 | 570 | st = dup_super(tst); |
3da92f27 | 571 | |
fe80f49b | 572 | if (array.not_persistent==0) |
3da92f27 NB |
573 | st->ss->load_super(st, tfd, NULL); |
574 | ||
a4e13010 N |
575 | if (add_dev == dv->devname) { |
576 | if (!get_dev_size(tfd, dv->devname, &ldsize)) { | |
577 | close(tfd); | |
578 | return 1; | |
579 | } | |
580 | } else if (!get_dev_size(tfd, NULL, &ldsize)) { | |
4a39c6f2 | 581 | close(tfd); |
cfad27a9 | 582 | tfd = -1; |
a4e13010 | 583 | continue; |
4a39c6f2 | 584 | } |
f94d52f4 NB |
585 | |
586 | if (!tst->ss->external && | |
587 | array.major_version == 0 && | |
60d9a174 | 588 | md_get_version(fd)%100 < 2) { |
a4e13010 | 589 | close(tfd); |
cfad27a9 | 590 | tfd = -1; |
892debc8 NB |
591 | if (ioctl(fd, HOT_ADD_DISK, |
592 | (unsigned long)stb.st_rdev)==0) { | |
dab6685f NB |
593 | if (verbose >= 0) |
594 | fprintf(stderr, Name ": hot added %s\n", | |
a4e13010 | 595 | add_dev); |
892debc8 NB |
596 | continue; |
597 | } | |
598 | ||
cd29a5c8 | 599 | fprintf(stderr, Name ": hot add failed for %s: %s\n", |
a4e13010 | 600 | add_dev, strerror(errno)); |
cd29a5c8 NB |
601 | return 1; |
602 | } | |
892debc8 | 603 | |
43dad3d6 | 604 | if (array.not_persistent == 0 || tst->ss->external) { |
4a39c6f2 | 605 | |
fe80f49b | 606 | /* need to find a sample superblock to copy, and |
43dad3d6 DW |
607 | * a spare slot to use. |
608 | * For 'external' array (well, container based), | |
609 | * We can just load the metadata for the array. | |
fe80f49b | 610 | */ |
a4e13010 N |
611 | if (tst->sb) |
612 | /* already loaded */; | |
613 | else if (tst->ss->external) { | |
0fb69d1d | 614 | tst->ss->load_container(tst, fd, NULL); |
43dad3d6 | 615 | } else for (j = 0; j < tst->max_devs; j++) { |
fe80f49b NB |
616 | char *dev; |
617 | int dfd; | |
618 | disc.number = j; | |
619 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
620 | continue; | |
621 | if (disc.major==0 && disc.minor==0) | |
622 | continue; | |
623 | if ((disc.state & 4)==0) continue; /* sync */ | |
624 | /* Looks like a good device to try */ | |
16c6fa80 | 625 | dev = map_dev(disc.major, disc.minor, 1); |
fe80f49b | 626 | if (!dev) continue; |
16c6fa80 | 627 | dfd = dev_open(dev, O_RDONLY); |
fe80f49b | 628 | if (dfd < 0) continue; |
3da92f27 NB |
629 | if (tst->ss->load_super(tst, dfd, |
630 | NULL)) { | |
fe80f49b NB |
631 | close(dfd); |
632 | continue; | |
633 | } | |
892debc8 | 634 | close(dfd); |
fe80f49b NB |
635 | break; |
636 | } | |
43dad3d6 | 637 | /* FIXME this is a bad test to be using */ |
3da92f27 | 638 | if (!tst->sb) { |
a4e13010 | 639 | close(tfd); |
fe80f49b NB |
640 | fprintf(stderr, Name ": cannot find valid superblock in this array - HELP\n"); |
641 | return 1; | |
642 | } | |
2a528478 N |
643 | |
644 | /* Make sure device is large enough */ | |
645 | if (tst->ss->avail_size(tst, ldsize/512) < | |
646 | array_size) { | |
a4e13010 | 647 | close(tfd); |
cfad27a9 | 648 | tfd = -1; |
a4e13010 N |
649 | if (add_dev != dv->devname) |
650 | continue; | |
2a528478 N |
651 | fprintf(stderr, Name ": %s not large enough to join array\n", |
652 | dv->devname); | |
653 | return 1; | |
654 | } | |
655 | ||
fe80f49b NB |
656 | /* Possibly this device was recently part of the array |
657 | * and was temporarily removed, and is now being re-added. | |
658 | * If so, we can simply re-add it. | |
659 | */ | |
3da92f27 | 660 | tst->ss->uuid_from_super(tst, duuid); |
7eae7080 NB |
661 | |
662 | /* re-add doesn't work for version-1 superblocks | |
663 | * before 2.6.18 :-( | |
664 | */ | |
665 | if (array.major_version == 1 && | |
666 | get_linux_version() <= 2006018) | |
667 | ; | |
3da92f27 | 668 | else if (st->sb) { |
8453e704 | 669 | struct mdinfo mdi; |
a5d85af7 | 670 | st->ss->getinfo_super(st, &mdi, NULL); |
3da92f27 | 671 | st->ss->uuid_from_super(st, ouuid); |
8453e704 N |
672 | if ((mdi.disk.state & (1<<MD_DISK_ACTIVE)) && |
673 | !(mdi.disk.state & (1<<MD_DISK_FAULTY)) && | |
674 | memcmp(duuid, ouuid, sizeof(ouuid))==0) { | |
675 | /* look like it is worth a try. Need to | |
676 | * make sure kernel will accept it though. | |
fe80f49b | 677 | */ |
8453e704 N |
678 | disc.number = mdi.disk.number; |
679 | if (ioctl(fd, GET_DISK_INFO, &disc) != 0 | |
680 | || disc.major != 0 || disc.minor != 0 | |
681 | || !enough_fd(fd)) | |
682 | goto skip_re_add; | |
fe80f49b NB |
683 | disc.major = major(stb.st_rdev); |
684 | disc.minor = minor(stb.st_rdev); | |
685 | disc.number = mdi.disk.number; | |
686 | disc.raid_disk = mdi.disk.raid_disk; | |
687 | disc.state = mdi.disk.state; | |
b3d31955 | 688 | if (dv->writemostly == 1) |
4d20d744 | 689 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; |
b3d31955 N |
690 | if (dv->writemostly == 2) |
691 | disc.state &= ~(1 << MD_DISK_WRITEMOSTLY); | |
a4e13010 N |
692 | remove_partitions(tfd); |
693 | close(tfd); | |
694 | tfd = -1; | |
833bb0f8 N |
695 | if (update) { |
696 | int rv = -1; | |
697 | tfd = dev_open(dv->devname, O_RDWR); | |
698 | ||
699 | if (tfd >= 0) | |
700 | rv = st->ss->update_super( | |
701 | st, NULL, update, | |
702 | devname, verbose, 0, NULL); | |
703 | if (rv == 0) | |
704 | rv = tst->ss->store_super(st, tfd); | |
705 | close(tfd); | |
706 | tfd = -1; | |
707 | if (rv != 0) { | |
708 | fprintf(stderr, Name ": failed to update" | |
709 | " superblock during re-add\n"); | |
710 | return 1; | |
711 | } | |
712 | } | |
5c64fcb5 N |
713 | /* don't even try if disk is marked as faulty */ |
714 | errno = 0; | |
8453e704 | 715 | if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) { |
fe80f49b | 716 | if (verbose >= 0) |
a4e13010 | 717 | fprintf(stderr, Name ": re-added %s\n", add_dev); |
7d2e6486 | 718 | count++; |
308e1801 | 719 | continue; |
fe80f49b | 720 | } |
c9f39c1b N |
721 | if (errno == ENOMEM || errno == EROFS) { |
722 | fprintf(stderr, Name ": add new device failed for %s: %s\n", | |
a4e13010 N |
723 | add_dev, strerror(errno)); |
724 | if (add_dev != dv->devname) | |
725 | continue; | |
c9f39c1b N |
726 | return 1; |
727 | } | |
8453e704 N |
728 | skip_re_add: |
729 | re_add_failed = 1; | |
fe80f49b | 730 | } |
892debc8 | 731 | } |
a4e13010 N |
732 | if (add_dev != dv->devname) { |
733 | if (verbose > 0) | |
734 | fprintf(stderr, Name | |
735 | ": --re-add for %s to %s is not possible\n", | |
736 | add_dev, devname); | |
cfad27a9 | 737 | if (tfd >= 0) { |
a4e13010 | 738 | close(tfd); |
cfad27a9 DL |
739 | tfd = -1; |
740 | } | |
a4e13010 N |
741 | continue; |
742 | } | |
751fd6c0 | 743 | if (dv->re_add) { |
a4e13010 N |
744 | if (tfd >= 0) |
745 | close(tfd); | |
751fd6c0 N |
746 | fprintf(stderr, Name |
747 | ": --re-add for %s to %s is not possible\n", | |
748 | dv->devname, devname); | |
749 | return 1; | |
750 | } | |
8453e704 N |
751 | if (re_add_failed) { |
752 | fprintf(stderr, Name ": %s reports being an active member for %s, but a --re-add fails.\n", | |
753 | dv->devname, devname); | |
754 | fprintf(stderr, Name ": not performing --add as that would convert %s in to a spare.\n", | |
755 | dv->devname); | |
756 | fprintf(stderr, Name ": To make this a spare, use \"mdadm --zero-superblock %s\" first.\n", | |
757 | dv->devname); | |
758 | if (tfd >= 0) | |
759 | close(tfd); | |
760 | return 1; | |
761 | } | |
4a39c6f2 NB |
762 | } else { |
763 | /* non-persistent. Must ensure that new drive | |
764 | * is at least array.size big. | |
765 | */ | |
7a3be72f | 766 | if (ldsize/512 < array_size) { |
4a39c6f2 NB |
767 | fprintf(stderr, Name ": %s not large enough to join array\n", |
768 | dv->devname); | |
cfad27a9 DL |
769 | if (tfd >= 0) |
770 | close(tfd); | |
4a39c6f2 NB |
771 | return 1; |
772 | } | |
892debc8 | 773 | } |
a4e13010 N |
774 | /* committed to really trying this device now*/ |
775 | if (tfd >= 0) { | |
776 | remove_partitions(tfd); | |
777 | close(tfd); | |
cfad27a9 | 778 | tfd = -1; |
a4e13010 | 779 | } |
7eae7080 NB |
780 | /* in 2.6.17 and earlier, version-1 superblocks won't |
781 | * use the number we write, but will choose a free number. | |
782 | * we must choose the same free number, which requires | |
783 | * starting at 'raid_disks' and counting up | |
784 | */ | |
3da92f27 | 785 | for (j = array.raid_disks; j< tst->max_devs; j++) { |
aa88f531 | 786 | disc.number = j; |
682c7051 NB |
787 | if (ioctl(fd, GET_DISK_INFO, &disc)) |
788 | break; | |
789 | if (disc.major==0 && disc.minor==0) | |
790 | break; | |
791 | if (disc.state & 8) /* removed */ | |
792 | break; | |
793 | } | |
0df46c2a NB |
794 | disc.major = major(stb.st_rdev); |
795 | disc.minor = minor(stb.st_rdev); | |
892debc8 NB |
796 | disc.number =j; |
797 | disc.state = 0; | |
43dad3d6 | 798 | if (array.not_persistent==0 || tst->ss->external) { |
111d01fc | 799 | int dfd; |
b3d31955 | 800 | if (dv->writemostly == 1) |
fe80f49b | 801 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; |
3b435195 | 802 | dfd = dev_open(dv->devname, O_RDWR | O_EXCL|O_DIRECT); |
73cb8d43 AK |
803 | if (tst->ss->external && |
804 | mdmon_running(tst->container_dev)) | |
805 | tst->update_tail = &tst->updates; | |
f20c3968 DW |
806 | if (tst->ss->add_to_super(tst, &disc, dfd, |
807 | dv->devname)) { | |
f20c3968 DW |
808 | close(dfd); |
809 | return 1; | |
810 | } | |
111d01fc | 811 | /* write_init_super will close 'dfd' */ |
73cb8d43 | 812 | if (tst->ss->write_init_super(tst)) |
fe80f49b NB |
813 | return 1; |
814 | } else if (dv->re_add) { | |
815 | /* this had better be raid1. | |
816 | * As we are "--re-add"ing we must find a spare slot | |
817 | * to fill. | |
818 | */ | |
819 | char *used = malloc(array.raid_disks); | |
820 | memset(used, 0, array.raid_disks); | |
3da92f27 | 821 | for (j=0; j< tst->max_devs; j++) { |
fe80f49b NB |
822 | mdu_disk_info_t disc2; |
823 | disc2.number = j; | |
824 | if (ioctl(fd, GET_DISK_INFO, &disc2)) | |
825 | continue; | |
826 | if (disc2.major==0 && disc2.minor==0) | |
827 | continue; | |
828 | if (disc2.state & 8) /* removed */ | |
829 | continue; | |
830 | if (disc2.raid_disk < 0) | |
831 | continue; | |
832 | if (disc2.raid_disk > array.raid_disks) | |
833 | continue; | |
834 | used[disc2.raid_disk] = 1; | |
835 | } | |
836 | for (j=0 ; j<array.raid_disks; j++) | |
837 | if (!used[j]) { | |
838 | disc.raid_disk = j; | |
839 | disc.state |= (1<<MD_DISK_SYNC); | |
840 | break; | |
841 | } | |
0eb26465 | 842 | free(used); |
fe80f49b | 843 | } |
b3d31955 | 844 | if (dv->writemostly == 1) |
d8def61c | 845 | disc.state |= (1 << MD_DISK_WRITEMOSTLY); |
43dad3d6 | 846 | if (tst->ss->external) { |
73cb8d43 AK |
847 | /* add a disk |
848 | * to an external metadata container */ | |
43dad3d6 DW |
849 | struct mdinfo new_mdi; |
850 | struct mdinfo *sra; | |
851 | int container_fd; | |
852 | int devnum = fd2devnum(fd); | |
853 | ||
854 | container_fd = open_dev_excl(devnum); | |
855 | if (container_fd < 0) { | |
856 | fprintf(stderr, Name ": add failed for %s:" | |
857 | " could not get exclusive access to container\n", | |
858 | dv->devname); | |
859 | return 1; | |
860 | } | |
861 | ||
43dad3d6 DW |
862 | sra = sysfs_read(container_fd, -1, 0); |
863 | if (!sra) { | |
864 | fprintf(stderr, Name ": add failed for %s: sysfs_read failed\n", | |
865 | dv->devname); | |
866 | close(container_fd); | |
867 | return 1; | |
868 | } | |
869 | sra->array.level = LEVEL_CONTAINER; | |
870 | /* Need to set data_offset and component_size */ | |
a5d85af7 | 871 | tst->ss->getinfo_super(tst, &new_mdi, NULL); |
43dad3d6 DW |
872 | new_mdi.disk.major = disc.major; |
873 | new_mdi.disk.minor = disc.minor; | |
d23534e4 | 874 | new_mdi.recovery_start = 0; |
462906cd | 875 | if (sysfs_add_disk(sra, &new_mdi, 0) != 0) { |
43dad3d6 DW |
876 | fprintf(stderr, Name ": add new device to external metadata" |
877 | " failed for %s\n", dv->devname); | |
878 | close(container_fd); | |
73cb8d43 | 879 | sysfs_free(sra); |
43dad3d6 DW |
880 | return 1; |
881 | } | |
882 | ping_monitor(devnum2devname(devnum)); | |
883 | sysfs_free(sra); | |
884 | close(container_fd); | |
885 | } else if (ioctl(fd, ADD_NEW_DISK, &disc)) { | |
f277ce36 NB |
886 | fprintf(stderr, Name ": add new device failed for %s as %d: %s\n", |
887 | dv->devname, j, strerror(errno)); | |
682c7051 NB |
888 | return 1; |
889 | } | |
dab6685f NB |
890 | if (verbose >= 0) |
891 | fprintf(stderr, Name ": added %s\n", dv->devname); | |
682c7051 NB |
892 | break; |
893 | ||
894 | case 'r': | |
895 | /* hot remove */ | |
4725bc31 | 896 | if (subarray) { |
f7dd881f DW |
897 | fprintf(stderr, Name ": Cannot remove disks from a" |
898 | " \'member\' array, perform this" | |
899 | " operation on the parent container\n"); | |
98d27e39 N |
900 | if (sysfd >= 0) |
901 | close(sysfd); | |
f7dd881f | 902 | return 1; |
f94d52f4 NB |
903 | } |
904 | if (tst->ss->external) { | |
905 | /* To remove a device from a container, we must | |
906 | * check that it isn't in use in an array. | |
907 | * This involves looking in the 'holders' | |
908 | * directory - there must be just one entry, | |
909 | * the container. | |
910 | * To ensure that it doesn't get used as a | |
911 | * hold spare while we are checking, we | |
912 | * get an O_EXCL open on the container | |
913 | */ | |
914 | int dnum = fd2devnum(fd); | |
915 | lfd = open_dev_excl(dnum); | |
916 | if (lfd < 0) { | |
917 | fprintf(stderr, Name | |
918 | ": Cannot get exclusive access " | |
919 | " to container - odd\n"); | |
98d27e39 N |
920 | if (sysfd >= 0) |
921 | close(sysfd); | |
f94d52f4 NB |
922 | return 1; |
923 | } | |
85f9b5f7 DW |
924 | /* in the detached case it is not possible to |
925 | * check if we are the unique holder, so just | |
926 | * rely on the 'detached' checks | |
927 | */ | |
928 | if (strcmp(dv->devname, "detached") == 0 || | |
98d27e39 | 929 | sysfd >= 0 || |
85f9b5f7 DW |
930 | sysfs_unique_holder(dnum, stb.st_rdev)) |
931 | /* pass */; | |
932 | else { | |
f94d52f4 NB |
933 | fprintf(stderr, Name |
934 | ": %s is %s, cannot remove.\n", | |
935 | dnprintable, | |
936 | errno == EEXIST ? "still in use": | |
937 | "not a member"); | |
938 | close(lfd); | |
939 | return 1; | |
940 | } | |
941 | } | |
82b27616 | 942 | /* FIXME check that it is a current member */ |
98d27e39 N |
943 | if (sysfd >= 0) { |
944 | /* device has been removed and we don't know | |
945 | * the major:minor number | |
946 | */ | |
947 | int n = write(sysfd, "remove", 6); | |
948 | if (n != 6) | |
f94d52f4 | 949 | err = -1; |
98d27e39 N |
950 | else |
951 | err = 0; | |
952 | close(sysfd); | |
953 | sysfd = -1; | |
954 | } else { | |
955 | err = ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev); | |
956 | if (err && errno == ENODEV) { | |
957 | /* Old kernels rejected this if no personality | |
958 | * registered */ | |
959 | struct mdinfo *sra = sysfs_read(fd, 0, GET_DEVS); | |
960 | struct mdinfo *dv = NULL; | |
961 | if (sra) | |
962 | dv = sra->devs; | |
963 | for ( ; dv ; dv=dv->next) | |
f21e18ca N |
964 | if (dv->disk.major == (int)major(stb.st_rdev) && |
965 | dv->disk.minor == (int)minor(stb.st_rdev)) | |
98d27e39 N |
966 | break; |
967 | if (dv) | |
968 | err = sysfs_set_str(sra, dv, | |
969 | "state", "remove"); | |
970 | else | |
971 | err = -1; | |
972 | if (sra) | |
973 | sysfs_free(sra); | |
974 | } | |
f94d52f4 NB |
975 | } |
976 | if (err) { | |
b80da661 NB |
977 | fprintf(stderr, Name ": hot remove failed " |
978 | "for %s: %s\n", dnprintable, | |
979 | strerror(errno)); | |
f94d52f4 NB |
980 | if (lfd >= 0) |
981 | close(lfd); | |
682c7051 NB |
982 | return 1; |
983 | } | |
313a4a82 DW |
984 | if (tst->ss->external) { |
985 | /* | |
986 | * Before dropping our exclusive open we make an | |
987 | * attempt at preventing mdmon from seeing an | |
988 | * 'add' event before reconciling this 'remove' | |
989 | * event. | |
990 | */ | |
991 | char *name = devnum2devname(fd2devnum(fd)); | |
992 | ||
993 | if (!name) { | |
994 | fprintf(stderr, Name ": unable to get container name\n"); | |
995 | return 1; | |
996 | } | |
997 | ||
998 | ping_manager(name); | |
999 | free(name); | |
1000 | } | |
98d27e39 N |
1001 | if (lfd >= 0) |
1002 | close(lfd); | |
7d2e6486 | 1003 | count++; |
dab6685f | 1004 | if (verbose >= 0) |
29ba4804 N |
1005 | fprintf(stderr, Name ": hot removed %s from %s\n", |
1006 | dnprintable, devname); | |
682c7051 NB |
1007 | break; |
1008 | ||
1009 | case 'f': /* set faulty */ | |
1010 | /* FIXME check current member */ | |
98d27e39 N |
1011 | if ((sysfd >= 0 && write(sysfd, "faulty", 6) != 6) || |
1012 | (sysfd < 0 && ioctl(fd, SET_DISK_FAULTY, | |
1013 | (unsigned long) stb.st_rdev))) { | |
b83d95f3 | 1014 | fprintf(stderr, Name ": set device faulty failed for %s: %s\n", |
b80da661 | 1015 | dnprintable, strerror(errno)); |
98d27e39 N |
1016 | if (sysfd >= 0) |
1017 | close(sysfd); | |
682c7051 NB |
1018 | return 1; |
1019 | } | |
98d27e39 N |
1020 | if (sysfd >= 0) |
1021 | close(sysfd); | |
1022 | sysfd = -1; | |
7d2e6486 | 1023 | count++; |
dab6685f NB |
1024 | if (verbose >= 0) |
1025 | fprintf(stderr, Name ": set %s faulty in %s\n", | |
b80da661 | 1026 | dnprintable, devname); |
682c7051 NB |
1027 | break; |
1028 | } | |
1029 | } | |
7d2e6486 N |
1030 | if (test && count == 0) |
1031 | return 2; | |
682c7051 | 1032 | return 0; |
64c4757e | 1033 | } |
1f48664b NB |
1034 | |
1035 | int autodetect(void) | |
1036 | { | |
1037 | /* Open any md device, and issue the RAID_AUTORUN ioctl */ | |
1038 | int rv = 1; | |
1039 | int fd = dev_open("9:0", O_RDONLY); | |
1040 | if (fd >= 0) { | |
1041 | if (ioctl(fd, RAID_AUTORUN, 0) == 0) | |
1042 | rv = 0; | |
1043 | close(fd); | |
1044 | } | |
1045 | return rv; | |
1046 | } | |
aa534678 | 1047 | |
fa56eddb | 1048 | int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet) |
aa534678 DW |
1049 | { |
1050 | struct supertype supertype, *st = &supertype; | |
1051 | int fd, rv = 2; | |
1052 | ||
1053 | memset(st, 0, sizeof(*st)); | |
aa534678 | 1054 | |
feab51f8 | 1055 | fd = open_subarray(dev, subarray, st, quiet); |
aa534678 DW |
1056 | if (fd < 0) |
1057 | return 2; | |
1058 | ||
1059 | if (!st->ss->update_subarray) { | |
1060 | if (!quiet) | |
1061 | fprintf(stderr, | |
1062 | Name ": Operation not supported for %s metadata\n", | |
1063 | st->ss->name); | |
1064 | goto free_super; | |
1065 | } | |
1066 | ||
1067 | if (mdmon_running(st->devnum)) | |
1068 | st->update_tail = &st->updates; | |
1069 | ||
a951a4f7 | 1070 | rv = st->ss->update_subarray(st, subarray, update, ident); |
aa534678 DW |
1071 | |
1072 | if (rv) { | |
1073 | if (!quiet) | |
1074 | fprintf(stderr, Name ": Failed to update %s of subarray-%s in %s\n", | |
1075 | update, subarray, dev); | |
1076 | } else if (st->update_tail) | |
1077 | flush_metadata_updates(st); | |
1078 | else | |
1079 | st->ss->sync_metadata(st); | |
1080 | ||
1081 | if (rv == 0 && strcmp(update, "name") == 0 && !quiet) | |
1082 | fprintf(stderr, | |
1083 | Name ": Updated subarray-%s name from %s, UUIDs may have changed\n", | |
1084 | subarray, dev); | |
1085 | ||
1086 | free_super: | |
1087 | st->ss->free_super(st); | |
1088 | close(fd); | |
1089 | ||
1090 | return rv; | |
1091 | } | |
d52bb542 AC |
1092 | |
1093 | /* Move spare from one array to another | |
1094 | * If adding to destination array fails | |
1095 | * add back to original array | |
1096 | * Returns 1 on success, 0 on failure */ | |
1097 | int move_spare(char *from_devname, char *to_devname, dev_t devid) | |
1098 | { | |
1099 | struct mddev_dev devlist; | |
1100 | char devname[20]; | |
1101 | ||
1102 | /* try to remove and add */ | |
1103 | int fd1 = open(to_devname, O_RDONLY); | |
1104 | int fd2 = open(from_devname, O_RDONLY); | |
1105 | ||
1106 | if (fd1 < 0 || fd2 < 0) { | |
1107 | if (fd1>=0) close(fd1); | |
1108 | if (fd2>=0) close(fd2); | |
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | devlist.next = NULL; | |
1113 | devlist.used = 0; | |
1114 | devlist.re_add = 0; | |
1115 | devlist.writemostly = 0; | |
1116 | devlist.devname = devname; | |
1117 | sprintf(devname, "%d:%d", major(devid), minor(devid)); | |
1118 | ||
1119 | devlist.disposition = 'r'; | |
1120 | if (Manage_subdevs(from_devname, fd2, &devlist, -1, 0, NULL) == 0) { | |
1121 | devlist.disposition = 'a'; | |
1122 | if (Manage_subdevs(to_devname, fd1, &devlist, -1, 0, NULL) == 0) { | |
1123 | /* make sure manager is aware of changes */ | |
1124 | ping_manager(to_devname); | |
1125 | ping_manager(from_devname); | |
1126 | close(fd1); | |
1127 | close(fd2); | |
1128 | return 1; | |
1129 | } | |
1130 | else Manage_subdevs(from_devname, fd2, &devlist, -1, 0, NULL); | |
1131 | } | |
1132 | close(fd1); | |
1133 | close(fd2); | |
1134 | return 0; | |
1135 | } | |
435d4ebb | 1136 | #endif |