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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; |
eb0af526 N |
211 | int err; |
212 | int count; | |
daf7a3ce NB |
213 | /* If this is an mdmon managed array, just write 'inactive' |
214 | * to the array state and let mdmon clear up. | |
215 | */ | |
4ccad7b1 | 216 | devnum = fd2devnum(fd); |
eb0af526 N |
217 | /* Get EXCL access first. If this fails, then attempting |
218 | * to stop is probably a bad idea. | |
219 | */ | |
220 | close(fd); | |
221 | fd = open(devname, O_RDONLY|O_EXCL); | |
222 | if (fd < 0 || fd2devnum(fd) != devnum) { | |
223 | if (fd >= 0) | |
224 | close(fd); | |
225 | fprintf(stderr, | |
226 | Name ": Cannot get exclusive access to %s:" | |
1ae42d9d KW |
227 | "Perhaps a running " |
228 | "process, mounted filesystem " | |
229 | "or active volume group?\n", | |
eb0af526 N |
230 | devname); |
231 | return 1; | |
232 | } | |
daf7a3ce NB |
233 | mdi = sysfs_read(fd, -1, GET_LEVEL|GET_VERSION); |
234 | if (mdi && | |
235 | mdi->array.level > 0 && | |
3c558363 | 236 | is_subarray(mdi->text_version)) { |
1ae42d9d | 237 | int err; |
daf7a3ce NB |
238 | /* This is mdmon managed. */ |
239 | close(fd); | |
1ae42d9d KW |
240 | |
241 | count = 25; | |
242 | while (count && | |
243 | (err = sysfs_set_str(mdi, NULL, | |
244 | "array_state", | |
245 | "inactive")) < 0 | |
246 | && errno == EBUSY) { | |
247 | usleep(200000); | |
248 | count--; | |
249 | } | |
250 | if (err && !quiet) { | |
251 | fprintf(stderr, Name | |
252 | ": failed to stop array %s: %s\n", | |
253 | devname, strerror(errno)); | |
daf7a3ce NB |
254 | return 1; |
255 | } | |
256 | ||
257 | /* Give monitor a chance to act */ | |
c94709e8 | 258 | ping_monitor(mdi->text_version); |
daf7a3ce | 259 | |
eb0af526 N |
260 | fd = open_dev_excl(devnum); |
261 | if (fd < 0) { | |
262 | fprintf(stderr, Name | |
263 | ": failed to completely stop %s" | |
264 | ": Device is busy\n", | |
265 | devname); | |
266 | return 1; | |
267 | } | |
ada6c239 N |
268 | } else if (mdi && |
269 | mdi->array.major_version == -1 && | |
270 | mdi->array.minor_version == -2 && | |
3c558363 | 271 | !is_subarray(mdi->text_version)) { |
430ea469 | 272 | struct mdstat_ent *mds, *m; |
ada6c239 N |
273 | /* container, possibly mdmon-managed. |
274 | * Make sure mdmon isn't opening it, which | |
275 | * would interfere with the 'stop' | |
276 | */ | |
277 | ping_monitor(mdi->sys_name); | |
430ea469 N |
278 | |
279 | /* now check that there are no existing arrays | |
280 | * which are members of this array | |
281 | */ | |
282 | mds = mdstat_read(0, 0); | |
283 | for (m=mds; m; m=m->next) | |
284 | if (m->metadata_version && | |
285 | strncmp(m->metadata_version, "external:", 9)==0 && | |
286 | is_subarray(m->metadata_version+9) && | |
287 | devname2devnum(m->metadata_version+10) == devnum) { | |
288 | if (!quiet) | |
289 | fprintf(stderr, Name | |
290 | ": Cannot stop container %s: " | |
291 | "member %s still active\n", | |
292 | devname, m->dev); | |
293 | free_mdstat(mds); | |
294 | if (mdi) | |
295 | sysfs_free(mdi); | |
296 | return 1; | |
297 | } | |
daf7a3ce | 298 | } |
daf7a3ce | 299 | |
eb0af526 N |
300 | /* As we have an O_EXCL open, any use of the device |
301 | * which blocks STOP_ARRAY is probably a transient use, | |
302 | * so it is reasonable to retry for a while - 5 seconds. | |
303 | */ | |
fb0d4b9c | 304 | count = 25; err = 0; |
eb0af526 N |
305 | while (count && fd >= 0 |
306 | && (err = ioctl(fd, STOP_ARRAY, NULL)) < 0 | |
307 | && errno == EBUSY) { | |
308 | usleep(200000); | |
309 | count --; | |
310 | } | |
311 | if (fd >= 0 && err) { | |
37ea3936 | 312 | if (quiet == 0) { |
daf7a3ce | 313 | fprintf(stderr, Name |
4b9d39fc | 314 | ": failed to stop array %s: %s\n", |
91f068bf | 315 | devname, strerror(errno)); |
d927f3c4 NB |
316 | if (errno == EBUSY) |
317 | fprintf(stderr, "Perhaps a running " | |
318 | "process, mounted filesystem " | |
319 | "or active volume group?\n"); | |
320 | } | |
97590376 N |
321 | if (mdi) |
322 | sysfs_free(mdi); | |
682c7051 NB |
323 | return 1; |
324 | } | |
97590376 | 325 | /* prior to 2.6.28, KOBJ_CHANGE was not sent when an md array |
d49410d3 N |
326 | * was stopped, so We'll do it here just to be sure. Drop any |
327 | * partitions as well... | |
97590376 | 328 | */ |
d49410d3 N |
329 | if (fd >= 0) |
330 | ioctl(fd, BLKRRPART, 0); | |
97590376 N |
331 | if (mdi) |
332 | sysfs_uevent(mdi, "change"); | |
daf7a3ce | 333 | |
4ccad7b1 N |
334 | |
335 | if (devnum != NoMdDev && | |
336 | (stat("/dev/.udev", &stb) != 0 || | |
337 | check_env("MDADM_NO_UDEV"))) { | |
338 | struct map_ent *mp = map_by_devnum(&map, devnum); | |
339 | remove_devices(devnum, mp ? mp->path : NULL); | |
340 | } | |
341 | ||
342 | ||
ab56093f NB |
343 | if (quiet <= 0) |
344 | fprintf(stderr, Name ": stopped %s\n", devname); | |
4eb26970 DW |
345 | map_lock(&map); |
346 | map_remove(&map, devnum); | |
347 | map_unlock(&map); | |
682c7051 NB |
348 | } |
349 | return 0; | |
64c4757e NB |
350 | } |
351 | ||
dd0781e5 NB |
352 | int Manage_resize(char *devname, int fd, long long size, int raid_disks) |
353 | { | |
354 | mdu_array_info_t info; | |
355 | if (ioctl(fd, GET_ARRAY_INFO, &info) != 0) { | |
356 | fprintf(stderr, Name ": Cannot get array information for %s: %s\n", | |
357 | devname, strerror(errno)); | |
358 | return 1; | |
359 | } | |
360 | if (size >= 0) | |
361 | info.size = size; | |
362 | if (raid_disks > 0) | |
363 | info.raid_disks = raid_disks; | |
364 | if (ioctl(fd, SET_ARRAY_INFO, &info) != 0) { | |
365 | fprintf(stderr, Name ": Cannot set device size/shape for %s: %s\n", | |
366 | devname, strerror(errno)); | |
367 | return 1; | |
368 | } | |
369 | return 0; | |
b5e64645 | 370 | } |
dd0781e5 | 371 | |
64c4757e | 372 | int Manage_subdevs(char *devname, int fd, |
833bb0f8 | 373 | struct mddev_dev *devlist, int verbose, int test, |
11b391ec | 374 | char *update, int force) |
cd29a5c8 | 375 | { |
682c7051 NB |
376 | /* do something to each dev. |
377 | * devmode can be | |
378 | * 'a' - add the device | |
379 | * try HOT_ADD_DISK | |
380 | * If that fails EINVAL, try ADD_NEW_DISK | |
381 | * 'r' - remove the device HOT_REMOVE_DISK | |
b80da661 NB |
382 | * device can be 'faulty' or 'detached' in which case all |
383 | * matching devices are removed. | |
682c7051 | 384 | * 'f' - set the device faulty SET_DISK_FAULTY |
b80da661 NB |
385 | * device can be 'detached' in which case any device that |
386 | * is inaccessible will be marked faulty. | |
98d27e39 N |
387 | * For 'f' and 'r', the device can also be a kernel-internal |
388 | * name such as 'sdb'. | |
682c7051 | 389 | */ |
a655e550 | 390 | struct mddev_dev *add_devlist = NULL; |
682c7051 NB |
391 | mdu_array_info_t array; |
392 | mdu_disk_info_t disc; | |
7a3be72f | 393 | unsigned long long array_size; |
a655e550 | 394 | struct mddev_dev *dv, *next = NULL; |
682c7051 | 395 | struct stat stb; |
b80da661 | 396 | int j, jnext = 0; |
cfad27a9 | 397 | int tfd = -1; |
3da92f27 | 398 | struct supertype *st, *tst; |
4725bc31 | 399 | char *subarray = NULL; |
fe80f49b NB |
400 | int duuid[4]; |
401 | int ouuid[4]; | |
f94d52f4 | 402 | int lfd = -1; |
98d27e39 | 403 | int sysfd = -1; |
7d2e6486 | 404 | int count = 0; /* number of actions taken */ |
682c7051 NB |
405 | |
406 | if (ioctl(fd, GET_ARRAY_INFO, &array)) { | |
407 | fprintf(stderr, Name ": cannot get array info for %s\n", | |
408 | devname); | |
409 | return 1; | |
410 | } | |
3da92f27 | 411 | |
7a3be72f NB |
412 | /* array.size is only 32 bit and may be truncated. |
413 | * So read from sysfs if possible, and record number of sectors | |
414 | */ | |
415 | ||
416 | array_size = get_component_size(fd); | |
417 | if (array_size <= 0) | |
418 | array_size = array.size * 2; | |
419 | ||
4725bc31 | 420 | tst = super_by_fd(fd, &subarray); |
3da92f27 NB |
421 | if (!tst) { |
422 | fprintf(stderr, Name ": unsupport array - version %d.%d\n", | |
423 | array.major_version, array.minor_version); | |
424 | return 1; | |
425 | } | |
426 | ||
b3b4e8a7 | 427 | stb.st_rdev = 0; |
b80da661 | 428 | for (dv = devlist, j=0 ; dv; dv = next, j = jnext) { |
4a39c6f2 | 429 | unsigned long long ldsize; |
b80da661 NB |
430 | char dvname[20]; |
431 | char *dnprintable = dv->devname; | |
a4e13010 | 432 | char *add_dev = dv->devname; |
f94d52f4 | 433 | int err; |
8453e704 | 434 | int re_add_failed = 0; |
4a39c6f2 | 435 | |
b80da661 NB |
436 | next = dv->next; |
437 | jnext = 0; | |
438 | ||
439 | if (strcmp(dv->devname, "failed")==0 || | |
440 | strcmp(dv->devname, "faulty")==0) { | |
9e6d9291 | 441 | int remaining_disks = array.nr_disks; |
b80da661 NB |
442 | if (dv->disposition != 'r') { |
443 | fprintf(stderr, Name ": %s only meaningful " | |
444 | "with -r, not -%c\n", | |
445 | dv->devname, dv->disposition); | |
446 | return 1; | |
447 | } | |
9e6d9291 | 448 | for (; j < 1024 && remaining_disks > 0; j++) { |
f21e18ca | 449 | unsigned dev; |
b80da661 NB |
450 | disc.number = j; |
451 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
452 | continue; | |
453 | if (disc.major == 0 && disc.minor == 0) | |
454 | continue; | |
9e6d9291 | 455 | remaining_disks --; |
b80da661 NB |
456 | if ((disc.state & 1) == 0) /* faulty */ |
457 | continue; | |
b3b4e8a7 N |
458 | dev = makedev(disc.major, disc.minor); |
459 | if (stb.st_rdev == dev) | |
460 | /* already did that one */ | |
461 | continue; | |
462 | stb.st_rdev = dev; | |
b80da661 | 463 | next = dv; |
b3b4e8a7 N |
464 | /* same slot again next time - things might |
465 | * have reshuffled */ | |
466 | jnext = j; | |
b80da661 NB |
467 | sprintf(dvname,"%d:%d", disc.major, disc.minor); |
468 | dnprintable = dvname; | |
469 | break; | |
470 | } | |
5b660791 | 471 | if (next != dv) |
b80da661 NB |
472 | continue; |
473 | } else if (strcmp(dv->devname, "detached") == 0) { | |
9e6d9291 | 474 | int remaining_disks = array.nr_disks; |
b80da661 NB |
475 | if (dv->disposition != 'r' && dv->disposition != 'f') { |
476 | fprintf(stderr, Name ": %s only meaningful " | |
477 | "with -r of -f, not -%c\n", | |
478 | dv->devname, dv->disposition); | |
479 | return 1; | |
480 | } | |
9e6d9291 | 481 | for (; j < 1024 && remaining_disks > 0; j++) { |
b80da661 | 482 | int sfd; |
f21e18ca | 483 | unsigned dev; |
b80da661 NB |
484 | disc.number = j; |
485 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
486 | continue; | |
487 | if (disc.major == 0 && disc.minor == 0) | |
488 | continue; | |
9e6d9291 | 489 | remaining_disks --; |
b80da661 NB |
490 | sprintf(dvname,"%d:%d", disc.major, disc.minor); |
491 | sfd = dev_open(dvname, O_RDONLY); | |
492 | if (sfd >= 0) { | |
493 | close(sfd); | |
494 | continue; | |
495 | } | |
496 | if (dv->disposition == 'f' && | |
497 | (disc.state & 1) == 1) /* already faulty */ | |
498 | continue; | |
499 | if (errno != ENXIO) | |
500 | continue; | |
b3b4e8a7 N |
501 | dev = makedev(disc.major, disc.minor); |
502 | if (stb.st_rdev == dev) | |
503 | /* already did that one */ | |
504 | continue; | |
505 | stb.st_rdev = dev; | |
b80da661 | 506 | next = dv; |
b3b4e8a7 N |
507 | /* same slot again next time - things might |
508 | * have reshuffled */ | |
509 | jnext = j; | |
b80da661 NB |
510 | dnprintable = dvname; |
511 | break; | |
512 | } | |
5b660791 | 513 | if (next != dv) |
b80da661 | 514 | continue; |
a4e13010 N |
515 | } else if (strcmp(dv->devname, "missing") == 0) { |
516 | if (dv->disposition != 'a' || dv->re_add == 0) { | |
517 | fprintf(stderr, Name ": 'missing' only meaningful " | |
518 | "with --re-add\n"); | |
519 | return 1; | |
520 | } | |
521 | if (add_devlist == NULL) | |
522 | add_devlist = conf_get_devs(); | |
523 | if (add_devlist == NULL) { | |
524 | fprintf(stderr, Name ": no devices to scan for missing members."); | |
525 | continue; | |
526 | } | |
527 | add_dev = add_devlist->devname; | |
528 | add_devlist = add_devlist->next; | |
529 | if (add_devlist != NULL) | |
530 | next = dv; | |
531 | if (stat(add_dev, &stb) < 0) | |
532 | continue; | |
98d27e39 | 533 | } else if (strchr(dv->devname, '/') == NULL && |
93601c43 | 534 | strchr(dv->devname, ':') == NULL && |
98d27e39 N |
535 | strlen(dv->devname) < 50) { |
536 | /* Assume this is a kernel-internal name like 'sda1' */ | |
537 | int found = 0; | |
538 | char dname[55]; | |
539 | if (dv->disposition != 'r' && dv->disposition != 'f') { | |
540 | fprintf(stderr, Name ": %s only meaningful " | |
cfad27a9 | 541 | "with -r or -f, not -%c\n", |
98d27e39 N |
542 | dv->devname, dv->disposition); |
543 | return 1; | |
544 | } | |
545 | ||
546 | sprintf(dname, "dev-%s", dv->devname); | |
547 | sysfd = sysfs_open(fd2devnum(fd), dname, "block/dev"); | |
548 | if (sysfd >= 0) { | |
549 | char dn[20]; | |
550 | int mj,mn; | |
551 | if (sysfs_fd_get_str(sysfd, dn, 20) > 0 && | |
552 | sscanf(dn, "%d:%d", &mj,&mn) == 2) { | |
553 | stb.st_rdev = makedev(mj,mn); | |
554 | found = 1; | |
555 | } | |
556 | close(sysfd); | |
557 | sysfd = -1; | |
558 | } | |
559 | if (!found) { | |
560 | sysfd = sysfs_open(fd2devnum(fd), dname, "state"); | |
561 | if (sysfd < 0) { | |
562 | fprintf(stderr, Name ": %s does not appear " | |
563 | "to be a component of %s\n", | |
564 | dv->devname, devname); | |
565 | return 1; | |
566 | } | |
567 | } | |
b80da661 NB |
568 | } else { |
569 | j = 0; | |
570 | ||
c7b47447 | 571 | tfd = dev_open(dv->devname, O_RDONLY); |
5a9de8db N |
572 | if (tfd < 0 && dv->disposition == 'r' && |
573 | lstat(dv->devname, &stb) == 0) | |
574 | /* Be happy, the lstat worked, that is | |
575 | * enough for --remove | |
576 | */ | |
577 | ; | |
578 | else { | |
579 | if (tfd < 0 || fstat(tfd, &stb) != 0) { | |
580 | fprintf(stderr, Name ": cannot find %s: %s\n", | |
581 | dv->devname, strerror(errno)); | |
582 | if (tfd >= 0) | |
583 | close(tfd); | |
584 | return 1; | |
585 | } | |
586 | close(tfd); | |
cfad27a9 | 587 | tfd = -1; |
b80da661 NB |
588 | } |
589 | if ((stb.st_mode & S_IFMT) != S_IFBLK) { | |
590 | fprintf(stderr, Name ": %s is not a " | |
591 | "block device.\n", | |
592 | dv->devname); | |
593 | return 1; | |
594 | } | |
682c7051 | 595 | } |
cd29a5c8 | 596 | switch(dv->disposition){ |
682c7051 | 597 | default: |
c913b90e NB |
598 | fprintf(stderr, Name ": internal error - devmode[%s]=%d\n", |
599 | dv->devname, dv->disposition); | |
682c7051 NB |
600 | return 1; |
601 | case 'a': | |
4a39c6f2 | 602 | /* add the device */ |
4725bc31 | 603 | if (subarray) { |
f7dd881f DW |
604 | fprintf(stderr, Name ": Cannot add disks to a" |
605 | " \'member\' array, perform this" | |
606 | " operation on the parent container\n"); | |
607 | return 1; | |
f94d52f4 | 608 | } |
f277ce36 | 609 | /* Make sure it isn't in use (in 2.6 or later) */ |
a4e13010 N |
610 | tfd = dev_open(add_dev, O_RDONLY|O_EXCL|O_DIRECT); |
611 | if (tfd < 0 && add_dev != dv->devname) | |
612 | continue; | |
0fbf459d | 613 | if (tfd < 0) { |
d7eaf49f NB |
614 | fprintf(stderr, Name ": Cannot open %s: %s\n", |
615 | dv->devname, strerror(errno)); | |
616 | return 1; | |
617 | } | |
3da92f27 | 618 | |
1686dc25 | 619 | st = dup_super(tst); |
3da92f27 | 620 | |
fe80f49b | 621 | if (array.not_persistent==0) |
3da92f27 NB |
622 | st->ss->load_super(st, tfd, NULL); |
623 | ||
a4e13010 N |
624 | if (add_dev == dv->devname) { |
625 | if (!get_dev_size(tfd, dv->devname, &ldsize)) { | |
626 | close(tfd); | |
627 | return 1; | |
628 | } | |
629 | } else if (!get_dev_size(tfd, NULL, &ldsize)) { | |
4a39c6f2 | 630 | close(tfd); |
cfad27a9 | 631 | tfd = -1; |
a4e13010 | 632 | continue; |
4a39c6f2 | 633 | } |
f94d52f4 | 634 | |
11b391ec N |
635 | if (tst->ss->validate_geometry( |
636 | tst, array.level, array.layout, | |
637 | array.raid_disks, NULL, | |
638 | ldsize >> 9, NULL, NULL, 0) == 0) { | |
639 | if (!force) { | |
640 | fprintf(stderr, Name | |
641 | ": %s is larger than %s can " | |
642 | "effectively use.\n" | |
643 | " Add --force is you " | |
644 | "really wan to add this device.\n", | |
645 | add_dev, devname); | |
646 | close(tfd); | |
647 | return 1; | |
648 | } | |
649 | fprintf(stderr, Name | |
650 | ": %s is larger than %s can " | |
651 | "effectively use.\n" | |
652 | " Adding anyway as --force " | |
653 | "was given.\n", | |
654 | add_dev, devname); | |
655 | } | |
f94d52f4 NB |
656 | if (!tst->ss->external && |
657 | array.major_version == 0 && | |
60d9a174 | 658 | md_get_version(fd)%100 < 2) { |
a4e13010 | 659 | close(tfd); |
cfad27a9 | 660 | tfd = -1; |
892debc8 NB |
661 | if (ioctl(fd, HOT_ADD_DISK, |
662 | (unsigned long)stb.st_rdev)==0) { | |
dab6685f NB |
663 | if (verbose >= 0) |
664 | fprintf(stderr, Name ": hot added %s\n", | |
a4e13010 | 665 | add_dev); |
892debc8 NB |
666 | continue; |
667 | } | |
668 | ||
cd29a5c8 | 669 | fprintf(stderr, Name ": hot add failed for %s: %s\n", |
a4e13010 | 670 | add_dev, strerror(errno)); |
cd29a5c8 NB |
671 | return 1; |
672 | } | |
892debc8 | 673 | |
43dad3d6 | 674 | if (array.not_persistent == 0 || tst->ss->external) { |
4a39c6f2 | 675 | |
fe80f49b | 676 | /* need to find a sample superblock to copy, and |
43dad3d6 DW |
677 | * a spare slot to use. |
678 | * For 'external' array (well, container based), | |
679 | * We can just load the metadata for the array. | |
fe80f49b | 680 | */ |
a4e13010 N |
681 | if (tst->sb) |
682 | /* already loaded */; | |
683 | else if (tst->ss->external) { | |
0fb69d1d | 684 | tst->ss->load_container(tst, fd, NULL); |
43dad3d6 | 685 | } else for (j = 0; j < tst->max_devs; j++) { |
fe80f49b NB |
686 | char *dev; |
687 | int dfd; | |
688 | disc.number = j; | |
689 | if (ioctl(fd, GET_DISK_INFO, &disc)) | |
690 | continue; | |
691 | if (disc.major==0 && disc.minor==0) | |
692 | continue; | |
693 | if ((disc.state & 4)==0) continue; /* sync */ | |
694 | /* Looks like a good device to try */ | |
16c6fa80 | 695 | dev = map_dev(disc.major, disc.minor, 1); |
fe80f49b | 696 | if (!dev) continue; |
16c6fa80 | 697 | dfd = dev_open(dev, O_RDONLY); |
fe80f49b | 698 | if (dfd < 0) continue; |
3da92f27 NB |
699 | if (tst->ss->load_super(tst, dfd, |
700 | NULL)) { | |
fe80f49b NB |
701 | close(dfd); |
702 | continue; | |
703 | } | |
892debc8 | 704 | close(dfd); |
fe80f49b NB |
705 | break; |
706 | } | |
43dad3d6 | 707 | /* FIXME this is a bad test to be using */ |
3da92f27 | 708 | if (!tst->sb) { |
a4e13010 | 709 | close(tfd); |
0081eb00 | 710 | fprintf(stderr, Name ": cannot load array metadata from %s\n", devname); |
fe80f49b NB |
711 | return 1; |
712 | } | |
2a528478 N |
713 | |
714 | /* Make sure device is large enough */ | |
715 | if (tst->ss->avail_size(tst, ldsize/512) < | |
716 | array_size) { | |
a4e13010 | 717 | close(tfd); |
cfad27a9 | 718 | tfd = -1; |
a4e13010 N |
719 | if (add_dev != dv->devname) |
720 | continue; | |
2a528478 N |
721 | fprintf(stderr, Name ": %s not large enough to join array\n", |
722 | dv->devname); | |
723 | return 1; | |
724 | } | |
725 | ||
fe80f49b NB |
726 | /* Possibly this device was recently part of the array |
727 | * and was temporarily removed, and is now being re-added. | |
728 | * If so, we can simply re-add it. | |
729 | */ | |
3da92f27 | 730 | tst->ss->uuid_from_super(tst, duuid); |
7eae7080 | 731 | |
873eec46 | 732 | if (st->sb) { |
8453e704 | 733 | struct mdinfo mdi; |
a5d85af7 | 734 | st->ss->getinfo_super(st, &mdi, NULL); |
3da92f27 | 735 | st->ss->uuid_from_super(st, ouuid); |
8453e704 N |
736 | if ((mdi.disk.state & (1<<MD_DISK_ACTIVE)) && |
737 | !(mdi.disk.state & (1<<MD_DISK_FAULTY)) && | |
738 | memcmp(duuid, ouuid, sizeof(ouuid))==0) { | |
739 | /* look like it is worth a try. Need to | |
740 | * make sure kernel will accept it though. | |
fe80f49b | 741 | */ |
873eec46 N |
742 | /* re-add doesn't work for version-1 superblocks |
743 | * before 2.6.18 :-( | |
744 | */ | |
745 | if (array.major_version == 1 && | |
746 | get_linux_version() <= 2006018) | |
747 | goto skip_re_add; | |
8453e704 N |
748 | disc.number = mdi.disk.number; |
749 | if (ioctl(fd, GET_DISK_INFO, &disc) != 0 | |
750 | || disc.major != 0 || disc.minor != 0 | |
751 | || !enough_fd(fd)) | |
752 | goto skip_re_add; | |
fe80f49b NB |
753 | disc.major = major(stb.st_rdev); |
754 | disc.minor = minor(stb.st_rdev); | |
755 | disc.number = mdi.disk.number; | |
756 | disc.raid_disk = mdi.disk.raid_disk; | |
757 | disc.state = mdi.disk.state; | |
b3d31955 | 758 | if (dv->writemostly == 1) |
4d20d744 | 759 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; |
b3d31955 N |
760 | if (dv->writemostly == 2) |
761 | disc.state &= ~(1 << MD_DISK_WRITEMOSTLY); | |
a4e13010 N |
762 | remove_partitions(tfd); |
763 | close(tfd); | |
764 | tfd = -1; | |
16715c01 | 765 | if (update || dv->writemostly > 0) { |
833bb0f8 N |
766 | int rv = -1; |
767 | tfd = dev_open(dv->devname, O_RDWR); | |
16715c01 DL |
768 | if (tfd < 0) { |
769 | fprintf(stderr, Name ": failed to open %s for" | |
770 | " superblock update during re-add\n", dv->devname); | |
771 | return 1; | |
772 | } | |
833bb0f8 | 773 | |
16715c01 DL |
774 | if (dv->writemostly == 1) |
775 | rv = st->ss->update_super( | |
776 | st, NULL, "writemostly", | |
777 | devname, verbose, 0, NULL); | |
778 | if (dv->writemostly == 2) | |
779 | rv = st->ss->update_super( | |
780 | st, NULL, "readwrite", | |
781 | devname, verbose, 0, NULL); | |
782 | if (update) | |
833bb0f8 N |
783 | rv = st->ss->update_super( |
784 | st, NULL, update, | |
785 | devname, verbose, 0, NULL); | |
786 | if (rv == 0) | |
c0f8269d | 787 | rv = st->ss->store_super(st, tfd); |
833bb0f8 N |
788 | close(tfd); |
789 | tfd = -1; | |
790 | if (rv != 0) { | |
791 | fprintf(stderr, Name ": failed to update" | |
792 | " superblock during re-add\n"); | |
793 | return 1; | |
794 | } | |
795 | } | |
5c64fcb5 N |
796 | /* don't even try if disk is marked as faulty */ |
797 | errno = 0; | |
8453e704 | 798 | if (ioctl(fd, ADD_NEW_DISK, &disc) == 0) { |
fe80f49b | 799 | if (verbose >= 0) |
a4e13010 | 800 | fprintf(stderr, Name ": re-added %s\n", add_dev); |
7d2e6486 | 801 | count++; |
308e1801 | 802 | continue; |
fe80f49b | 803 | } |
c9f39c1b N |
804 | if (errno == ENOMEM || errno == EROFS) { |
805 | fprintf(stderr, Name ": add new device failed for %s: %s\n", | |
a4e13010 N |
806 | add_dev, strerror(errno)); |
807 | if (add_dev != dv->devname) | |
808 | continue; | |
c9f39c1b N |
809 | return 1; |
810 | } | |
8453e704 N |
811 | skip_re_add: |
812 | re_add_failed = 1; | |
fe80f49b | 813 | } |
1cc7f4fe | 814 | st->ss->free_super(st); |
892debc8 | 815 | } |
a4e13010 N |
816 | if (add_dev != dv->devname) { |
817 | if (verbose > 0) | |
818 | fprintf(stderr, Name | |
819 | ": --re-add for %s to %s is not possible\n", | |
820 | add_dev, devname); | |
cfad27a9 | 821 | if (tfd >= 0) { |
a4e13010 | 822 | close(tfd); |
cfad27a9 DL |
823 | tfd = -1; |
824 | } | |
a4e13010 N |
825 | continue; |
826 | } | |
751fd6c0 | 827 | if (dv->re_add) { |
a4e13010 N |
828 | if (tfd >= 0) |
829 | close(tfd); | |
751fd6c0 N |
830 | fprintf(stderr, Name |
831 | ": --re-add for %s to %s is not possible\n", | |
832 | dv->devname, devname); | |
833 | return 1; | |
834 | } | |
8453e704 N |
835 | if (re_add_failed) { |
836 | fprintf(stderr, Name ": %s reports being an active member for %s, but a --re-add fails.\n", | |
837 | dv->devname, devname); | |
838 | fprintf(stderr, Name ": not performing --add as that would convert %s in to a spare.\n", | |
839 | dv->devname); | |
840 | fprintf(stderr, Name ": To make this a spare, use \"mdadm --zero-superblock %s\" first.\n", | |
841 | dv->devname); | |
842 | if (tfd >= 0) | |
843 | close(tfd); | |
844 | return 1; | |
845 | } | |
4a39c6f2 NB |
846 | } else { |
847 | /* non-persistent. Must ensure that new drive | |
848 | * is at least array.size big. | |
849 | */ | |
7a3be72f | 850 | if (ldsize/512 < array_size) { |
4a39c6f2 NB |
851 | fprintf(stderr, Name ": %s not large enough to join array\n", |
852 | dv->devname); | |
cfad27a9 DL |
853 | if (tfd >= 0) |
854 | close(tfd); | |
4a39c6f2 NB |
855 | return 1; |
856 | } | |
892debc8 | 857 | } |
a4e13010 N |
858 | /* committed to really trying this device now*/ |
859 | if (tfd >= 0) { | |
860 | remove_partitions(tfd); | |
861 | close(tfd); | |
cfad27a9 | 862 | tfd = -1; |
a4e13010 | 863 | } |
7eae7080 NB |
864 | /* in 2.6.17 and earlier, version-1 superblocks won't |
865 | * use the number we write, but will choose a free number. | |
866 | * we must choose the same free number, which requires | |
867 | * starting at 'raid_disks' and counting up | |
868 | */ | |
3da92f27 | 869 | for (j = array.raid_disks; j< tst->max_devs; j++) { |
aa88f531 | 870 | disc.number = j; |
682c7051 NB |
871 | if (ioctl(fd, GET_DISK_INFO, &disc)) |
872 | break; | |
873 | if (disc.major==0 && disc.minor==0) | |
874 | break; | |
875 | if (disc.state & 8) /* removed */ | |
876 | break; | |
877 | } | |
0df46c2a NB |
878 | disc.major = major(stb.st_rdev); |
879 | disc.minor = minor(stb.st_rdev); | |
892debc8 NB |
880 | disc.number =j; |
881 | disc.state = 0; | |
02c39ab1 | 882 | if (array.not_persistent==0) { |
111d01fc | 883 | int dfd; |
b3d31955 | 884 | if (dv->writemostly == 1) |
fe80f49b | 885 | disc.state |= 1 << MD_DISK_WRITEMOSTLY; |
3b435195 | 886 | dfd = dev_open(dv->devname, O_RDWR | O_EXCL|O_DIRECT); |
f20c3968 DW |
887 | if (tst->ss->add_to_super(tst, &disc, dfd, |
888 | dv->devname)) { | |
f20c3968 DW |
889 | close(dfd); |
890 | return 1; | |
891 | } | |
1cc7f4fe N |
892 | if (tst->ss->write_init_super(tst)) { |
893 | close(dfd); | |
fe80f49b | 894 | return 1; |
1cc7f4fe | 895 | } |
fe80f49b NB |
896 | } else if (dv->re_add) { |
897 | /* this had better be raid1. | |
898 | * As we are "--re-add"ing we must find a spare slot | |
899 | * to fill. | |
900 | */ | |
901 | char *used = malloc(array.raid_disks); | |
902 | memset(used, 0, array.raid_disks); | |
3da92f27 | 903 | for (j=0; j< tst->max_devs; j++) { |
fe80f49b NB |
904 | mdu_disk_info_t disc2; |
905 | disc2.number = j; | |
906 | if (ioctl(fd, GET_DISK_INFO, &disc2)) | |
907 | continue; | |
908 | if (disc2.major==0 && disc2.minor==0) | |
909 | continue; | |
910 | if (disc2.state & 8) /* removed */ | |
911 | continue; | |
912 | if (disc2.raid_disk < 0) | |
913 | continue; | |
914 | if (disc2.raid_disk > array.raid_disks) | |
915 | continue; | |
916 | used[disc2.raid_disk] = 1; | |
917 | } | |
918 | for (j=0 ; j<array.raid_disks; j++) | |
919 | if (!used[j]) { | |
920 | disc.raid_disk = j; | |
921 | disc.state |= (1<<MD_DISK_SYNC); | |
922 | break; | |
923 | } | |
0eb26465 | 924 | free(used); |
fe80f49b | 925 | } |
b3d31955 | 926 | if (dv->writemostly == 1) |
d8def61c | 927 | disc.state |= (1 << MD_DISK_WRITEMOSTLY); |
43dad3d6 | 928 | if (tst->ss->external) { |
73cb8d43 AK |
929 | /* add a disk |
930 | * to an external metadata container */ | |
43dad3d6 DW |
931 | struct mdinfo new_mdi; |
932 | struct mdinfo *sra; | |
933 | int container_fd; | |
934 | int devnum = fd2devnum(fd); | |
02c39ab1 | 935 | int dfd; |
43dad3d6 DW |
936 | |
937 | container_fd = open_dev_excl(devnum); | |
938 | if (container_fd < 0) { | |
939 | fprintf(stderr, Name ": add failed for %s:" | |
940 | " could not get exclusive access to container\n", | |
941 | dv->devname); | |
562e70e4 | 942 | tst->ss->free_super(tst); |
43dad3d6 DW |
943 | return 1; |
944 | } | |
945 | ||
02c39ab1 | 946 | dfd = dev_open(dv->devname, O_RDWR | O_EXCL|O_DIRECT); |
d6221e66 N |
947 | if (mdmon_running(tst->container_dev)) |
948 | tst->update_tail = &tst->updates; | |
02c39ab1 N |
949 | if (tst->ss->add_to_super(tst, &disc, dfd, |
950 | dv->devname)) { | |
951 | close(dfd); | |
952 | close(container_fd); | |
953 | return 1; | |
954 | } | |
c0f8269d AK |
955 | if (tst->update_tail) |
956 | flush_metadata_updates(tst); | |
d6221e66 | 957 | else |
c0f8269d | 958 | tst->ss->sync_metadata(tst); |
02c39ab1 | 959 | |
43dad3d6 DW |
960 | sra = sysfs_read(container_fd, -1, 0); |
961 | if (!sra) { | |
962 | fprintf(stderr, Name ": add failed for %s: sysfs_read failed\n", | |
963 | dv->devname); | |
964 | close(container_fd); | |
562e70e4 | 965 | tst->ss->free_super(tst); |
43dad3d6 DW |
966 | return 1; |
967 | } | |
968 | sra->array.level = LEVEL_CONTAINER; | |
969 | /* Need to set data_offset and component_size */ | |
a5d85af7 | 970 | tst->ss->getinfo_super(tst, &new_mdi, NULL); |
43dad3d6 DW |
971 | new_mdi.disk.major = disc.major; |
972 | new_mdi.disk.minor = disc.minor; | |
d23534e4 | 973 | new_mdi.recovery_start = 0; |
1cc7f4fe N |
974 | /* Make sure fds are closed as they are O_EXCL which |
975 | * would block add_disk */ | |
976 | tst->ss->free_super(tst); | |
462906cd | 977 | if (sysfs_add_disk(sra, &new_mdi, 0) != 0) { |
43dad3d6 DW |
978 | fprintf(stderr, Name ": add new device to external metadata" |
979 | " failed for %s\n", dv->devname); | |
980 | close(container_fd); | |
73cb8d43 | 981 | sysfs_free(sra); |
43dad3d6 DW |
982 | return 1; |
983 | } | |
983fff45 | 984 | ping_monitor_by_id(devnum); |
43dad3d6 DW |
985 | sysfs_free(sra); |
986 | close(container_fd); | |
562e70e4 N |
987 | } else { |
988 | tst->ss->free_super(tst); | |
989 | if (ioctl(fd, ADD_NEW_DISK, &disc)) { | |
990 | fprintf(stderr, Name ": add new device failed for %s as %d: %s\n", | |
991 | dv->devname, j, strerror(errno)); | |
992 | return 1; | |
993 | } | |
682c7051 | 994 | } |
dab6685f NB |
995 | if (verbose >= 0) |
996 | fprintf(stderr, Name ": added %s\n", dv->devname); | |
682c7051 NB |
997 | break; |
998 | ||
999 | case 'r': | |
1000 | /* hot remove */ | |
4725bc31 | 1001 | if (subarray) { |
f7dd881f DW |
1002 | fprintf(stderr, Name ": Cannot remove disks from a" |
1003 | " \'member\' array, perform this" | |
1004 | " operation on the parent container\n"); | |
98d27e39 N |
1005 | if (sysfd >= 0) |
1006 | close(sysfd); | |
f7dd881f | 1007 | return 1; |
f94d52f4 NB |
1008 | } |
1009 | if (tst->ss->external) { | |
1010 | /* To remove a device from a container, we must | |
1011 | * check that it isn't in use in an array. | |
1012 | * This involves looking in the 'holders' | |
1013 | * directory - there must be just one entry, | |
1014 | * the container. | |
1015 | * To ensure that it doesn't get used as a | |
1016 | * hold spare while we are checking, we | |
1017 | * get an O_EXCL open on the container | |
1018 | */ | |
1019 | int dnum = fd2devnum(fd); | |
1020 | lfd = open_dev_excl(dnum); | |
1021 | if (lfd < 0) { | |
1022 | fprintf(stderr, Name | |
1023 | ": Cannot get exclusive access " | |
1024 | " to container - odd\n"); | |
98d27e39 N |
1025 | if (sysfd >= 0) |
1026 | close(sysfd); | |
f94d52f4 NB |
1027 | return 1; |
1028 | } | |
85f9b5f7 DW |
1029 | /* in the detached case it is not possible to |
1030 | * check if we are the unique holder, so just | |
1031 | * rely on the 'detached' checks | |
1032 | */ | |
1033 | if (strcmp(dv->devname, "detached") == 0 || | |
98d27e39 | 1034 | sysfd >= 0 || |
85f9b5f7 DW |
1035 | sysfs_unique_holder(dnum, stb.st_rdev)) |
1036 | /* pass */; | |
1037 | else { | |
f94d52f4 NB |
1038 | fprintf(stderr, Name |
1039 | ": %s is %s, cannot remove.\n", | |
1040 | dnprintable, | |
1041 | errno == EEXIST ? "still in use": | |
1042 | "not a member"); | |
1043 | close(lfd); | |
1044 | return 1; | |
1045 | } | |
1046 | } | |
82b27616 | 1047 | /* FIXME check that it is a current member */ |
98d27e39 N |
1048 | if (sysfd >= 0) { |
1049 | /* device has been removed and we don't know | |
1050 | * the major:minor number | |
1051 | */ | |
1052 | int n = write(sysfd, "remove", 6); | |
1053 | if (n != 6) | |
f94d52f4 | 1054 | err = -1; |
98d27e39 N |
1055 | else |
1056 | err = 0; | |
1057 | close(sysfd); | |
1058 | sysfd = -1; | |
1059 | } else { | |
1060 | err = ioctl(fd, HOT_REMOVE_DISK, (unsigned long)stb.st_rdev); | |
1061 | if (err && errno == ENODEV) { | |
1062 | /* Old kernels rejected this if no personality | |
1063 | * registered */ | |
1064 | struct mdinfo *sra = sysfs_read(fd, 0, GET_DEVS); | |
1065 | struct mdinfo *dv = NULL; | |
1066 | if (sra) | |
1067 | dv = sra->devs; | |
1068 | for ( ; dv ; dv=dv->next) | |
f21e18ca N |
1069 | if (dv->disk.major == (int)major(stb.st_rdev) && |
1070 | dv->disk.minor == (int)minor(stb.st_rdev)) | |
98d27e39 N |
1071 | break; |
1072 | if (dv) | |
1073 | err = sysfs_set_str(sra, dv, | |
1074 | "state", "remove"); | |
1075 | else | |
1076 | err = -1; | |
1077 | if (sra) | |
1078 | sysfs_free(sra); | |
1079 | } | |
f94d52f4 NB |
1080 | } |
1081 | if (err) { | |
b80da661 NB |
1082 | fprintf(stderr, Name ": hot remove failed " |
1083 | "for %s: %s\n", dnprintable, | |
1084 | strerror(errno)); | |
f94d52f4 NB |
1085 | if (lfd >= 0) |
1086 | close(lfd); | |
682c7051 NB |
1087 | return 1; |
1088 | } | |
313a4a82 DW |
1089 | if (tst->ss->external) { |
1090 | /* | |
1091 | * Before dropping our exclusive open we make an | |
1092 | * attempt at preventing mdmon from seeing an | |
1093 | * 'add' event before reconciling this 'remove' | |
1094 | * event. | |
1095 | */ | |
1096 | char *name = devnum2devname(fd2devnum(fd)); | |
1097 | ||
1098 | if (!name) { | |
1099 | fprintf(stderr, Name ": unable to get container name\n"); | |
1100 | return 1; | |
1101 | } | |
1102 | ||
1103 | ping_manager(name); | |
1104 | free(name); | |
1105 | } | |
98d27e39 N |
1106 | if (lfd >= 0) |
1107 | close(lfd); | |
7d2e6486 | 1108 | count++; |
dab6685f | 1109 | if (verbose >= 0) |
29ba4804 N |
1110 | fprintf(stderr, Name ": hot removed %s from %s\n", |
1111 | dnprintable, devname); | |
682c7051 NB |
1112 | break; |
1113 | ||
1114 | case 'f': /* set faulty */ | |
1115 | /* FIXME check current member */ | |
98d27e39 N |
1116 | if ((sysfd >= 0 && write(sysfd, "faulty", 6) != 6) || |
1117 | (sysfd < 0 && ioctl(fd, SET_DISK_FAULTY, | |
1118 | (unsigned long) stb.st_rdev))) { | |
b83d95f3 | 1119 | fprintf(stderr, Name ": set device faulty failed for %s: %s\n", |
b80da661 | 1120 | dnprintable, strerror(errno)); |
98d27e39 N |
1121 | if (sysfd >= 0) |
1122 | close(sysfd); | |
682c7051 NB |
1123 | return 1; |
1124 | } | |
98d27e39 N |
1125 | if (sysfd >= 0) |
1126 | close(sysfd); | |
1127 | sysfd = -1; | |
7d2e6486 | 1128 | count++; |
dab6685f NB |
1129 | if (verbose >= 0) |
1130 | fprintf(stderr, Name ": set %s faulty in %s\n", | |
b80da661 | 1131 | dnprintable, devname); |
682c7051 NB |
1132 | break; |
1133 | } | |
1134 | } | |
7d2e6486 N |
1135 | if (test && count == 0) |
1136 | return 2; | |
682c7051 | 1137 | return 0; |
64c4757e | 1138 | } |
1f48664b NB |
1139 | |
1140 | int autodetect(void) | |
1141 | { | |
1142 | /* Open any md device, and issue the RAID_AUTORUN ioctl */ | |
1143 | int rv = 1; | |
1144 | int fd = dev_open("9:0", O_RDONLY); | |
1145 | if (fd >= 0) { | |
1146 | if (ioctl(fd, RAID_AUTORUN, 0) == 0) | |
1147 | rv = 0; | |
1148 | close(fd); | |
1149 | } | |
1150 | return rv; | |
1151 | } | |
aa534678 | 1152 | |
fa56eddb | 1153 | int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet) |
aa534678 DW |
1154 | { |
1155 | struct supertype supertype, *st = &supertype; | |
1156 | int fd, rv = 2; | |
1157 | ||
1158 | memset(st, 0, sizeof(*st)); | |
aa534678 | 1159 | |
feab51f8 | 1160 | fd = open_subarray(dev, subarray, st, quiet); |
aa534678 DW |
1161 | if (fd < 0) |
1162 | return 2; | |
1163 | ||
1164 | if (!st->ss->update_subarray) { | |
1165 | if (!quiet) | |
1166 | fprintf(stderr, | |
1167 | Name ": Operation not supported for %s metadata\n", | |
1168 | st->ss->name); | |
1169 | goto free_super; | |
1170 | } | |
1171 | ||
1172 | if (mdmon_running(st->devnum)) | |
1173 | st->update_tail = &st->updates; | |
1174 | ||
a951a4f7 | 1175 | rv = st->ss->update_subarray(st, subarray, update, ident); |
aa534678 DW |
1176 | |
1177 | if (rv) { | |
1178 | if (!quiet) | |
1179 | fprintf(stderr, Name ": Failed to update %s of subarray-%s in %s\n", | |
1180 | update, subarray, dev); | |
1181 | } else if (st->update_tail) | |
1182 | flush_metadata_updates(st); | |
1183 | else | |
1184 | st->ss->sync_metadata(st); | |
1185 | ||
1186 | if (rv == 0 && strcmp(update, "name") == 0 && !quiet) | |
1187 | fprintf(stderr, | |
1188 | Name ": Updated subarray-%s name from %s, UUIDs may have changed\n", | |
1189 | subarray, dev); | |
1190 | ||
1191 | free_super: | |
1192 | st->ss->free_super(st); | |
1193 | close(fd); | |
1194 | ||
1195 | return rv; | |
1196 | } | |
d52bb542 AC |
1197 | |
1198 | /* Move spare from one array to another | |
1199 | * If adding to destination array fails | |
1200 | * add back to original array | |
1201 | * Returns 1 on success, 0 on failure */ | |
1202 | int move_spare(char *from_devname, char *to_devname, dev_t devid) | |
1203 | { | |
1204 | struct mddev_dev devlist; | |
1205 | char devname[20]; | |
1206 | ||
1207 | /* try to remove and add */ | |
1208 | int fd1 = open(to_devname, O_RDONLY); | |
1209 | int fd2 = open(from_devname, O_RDONLY); | |
1210 | ||
1211 | if (fd1 < 0 || fd2 < 0) { | |
1212 | if (fd1>=0) close(fd1); | |
1213 | if (fd2>=0) close(fd2); | |
1214 | return 0; | |
1215 | } | |
1216 | ||
1217 | devlist.next = NULL; | |
1218 | devlist.used = 0; | |
1219 | devlist.re_add = 0; | |
1220 | devlist.writemostly = 0; | |
1221 | devlist.devname = devname; | |
1222 | sprintf(devname, "%d:%d", major(devid), minor(devid)); | |
1223 | ||
1224 | devlist.disposition = 'r'; | |
11b391ec | 1225 | if (Manage_subdevs(from_devname, fd2, &devlist, -1, 0, NULL, 0) == 0) { |
d52bb542 | 1226 | devlist.disposition = 'a'; |
11b391ec | 1227 | if (Manage_subdevs(to_devname, fd1, &devlist, -1, 0, NULL, 0) == 0) { |
d52bb542 AC |
1228 | /* make sure manager is aware of changes */ |
1229 | ping_manager(to_devname); | |
1230 | ping_manager(from_devname); | |
1231 | close(fd1); | |
1232 | close(fd2); | |
1233 | return 1; | |
1234 | } | |
11b391ec | 1235 | else Manage_subdevs(from_devname, fd2, &devlist, -1, 0, NULL, 0); |
d52bb542 AC |
1236 | } |
1237 | close(fd1); | |
1238 | close(fd2); | |
1239 | return 0; | |
1240 | } | |
435d4ebb | 1241 | #endif |