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mdadm: define DEV_MD_DIR
[thirdparty/mdadm.git] / Detail.c
1 /*
2 * mdadm - manage Linux "md" devices aka RAID arrays.
3 *
4 * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de>
5 *
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 * Author: Neil Brown
22 * Email: <neilb@suse.de>
23 */
24
25 #include "mdadm.h"
26 #include "md_p.h"
27 #include "md_u.h"
28 #include <ctype.h>
29 #include <dirent.h>
30
31 static int cmpstringp(const void *p1, const void *p2)
32 {
33 return strcmp(* (char * const *) p1, * (char * const *) p2);
34 }
35
36 static int add_device(const char *dev, char ***p_devices,
37 int *p_max_devices, int n_devices)
38 {
39 if (n_devices + 1 >= *p_max_devices) {
40 *p_max_devices += 16;
41 *p_devices = xrealloc(*p_devices, *p_max_devices *
42 sizeof(**p_devices));
43 if (!*p_devices) {
44 *p_max_devices = 0;
45 return 0;
46 }
47 };
48 (*p_devices)[n_devices] = xstrdup(dev);
49 return n_devices + 1;
50 }
51
52 int Detail(char *dev, struct context *c)
53 {
54 /*
55 * Print out details for an md array
56 */
57 int fd = open(dev, O_RDONLY);
58 mdu_array_info_t array;
59 mdu_disk_info_t *disks = NULL;
60 int next;
61 int d;
62 time_t atime;
63 char *str;
64 char **devices = NULL;
65 int max_devices = 0, n_devices = 0;
66 int spares = 0;
67 struct stat stb;
68 int failed = 0;
69 struct supertype *st = NULL;
70 char *subarray = NULL;
71 int max_disks = MD_SB_DISKS; /* just a default */
72 struct mdinfo *info = NULL;
73 struct mdinfo *sra = NULL;
74 struct mdinfo *subdev;
75 char *member = NULL;
76 char *container = NULL;
77
78 int rv = c->test ? 4 : 1;
79 int avail_disks = 0;
80 char *avail = NULL;
81 int external;
82 int inactive;
83 int is_container = 0;
84 char *arrayst;
85
86 if (fd < 0) {
87 pr_err("cannot open %s: %s\n",
88 dev, strerror(errno));
89 return rv;
90 }
91 sra = sysfs_read(fd, NULL, GET_VERSION | GET_DEVS |
92 GET_ARRAY_STATE | GET_STATE);
93 if (!sra) {
94 if (md_get_array_info(fd, &array)) {
95 pr_err("%s does not appear to be an md device\n", dev);
96 goto out;
97 }
98 }
99 external = (sra != NULL && sra->array.major_version == -1 &&
100 sra->array.minor_version == -2);
101 inactive = (sra != NULL && !md_array_is_active(sra));
102 st = super_by_fd(fd, &subarray);
103 if (md_get_array_info(fd, &array)) {
104 if (errno == ENODEV) {
105 if (sra->array.major_version == -1 &&
106 sra->array.minor_version == -1 &&
107 sra->devs == NULL) {
108 pr_err("Array associated with md device %s does not exist.\n",
109 dev);
110 goto out;
111 }
112 array = sra->array;
113 } else {
114 pr_err("cannot get array detail for %s: %s\n",
115 dev, strerror(errno));
116 goto out;
117 }
118 }
119
120 if (array.raid_disks == 0 && external)
121 is_container = 1;
122 if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
123 stb.st_rdev = 0;
124 rv = 0;
125
126 if (st)
127 max_disks = st->max_devs;
128
129 if (subarray) {
130 /* This is a subarray of some container.
131 * We want the name of the container, and the member
132 */
133 dev_t devid = devnm2devid(st->container_devnm);
134 int cfd, err;
135
136 member = subarray;
137 container = map_dev_preferred(major(devid), minor(devid),
138 1, c->prefer);
139 cfd = open_dev(st->container_devnm);
140 if (cfd >= 0) {
141 err = st->ss->load_container(st, cfd, NULL);
142 close(cfd);
143 if (err == 0)
144 info = st->ss->container_content(st, subarray);
145 }
146 }
147
148 /* try to load a superblock. Try sra->devs first, then try ioctl */
149 if (st && !info)
150 for (d = 0, subdev = sra ? sra->devs : NULL;
151 d < max_disks || subdev;
152 subdev ? (void)(subdev = subdev->next) : (void)(d++)){
153 mdu_disk_info_t disk;
154 char *dv;
155 int fd2;
156 int err;
157
158 if (subdev)
159 disk = subdev->disk;
160 else {
161 disk.number = d;
162 if (md_get_disk_info(fd, &disk) < 0)
163 continue;
164 if (d >= array.raid_disks &&
165 disk.major == 0 && disk.minor == 0)
166 continue;
167 }
168
169 if (array.raid_disks > 0 &&
170 (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
171 continue;
172
173 dv = map_dev(disk.major, disk.minor, 1);
174 if (!dv)
175 continue;
176
177 fd2 = dev_open(dv, O_RDONLY);
178 if (fd2 < 0)
179 continue;
180
181 if (st->sb)
182 st->ss->free_super(st);
183
184 err = st->ss->load_super(st, fd2, NULL);
185 close(fd2);
186 if (err)
187 continue;
188 if (info)
189 free(info);
190 if (subarray)
191 info = st->ss->container_content(st, subarray);
192 else {
193 info = xmalloc(sizeof(*info));
194 st->ss->getinfo_super(st, info, NULL);
195 }
196 if (!info)
197 continue;
198
199 if (array.raid_disks != 0 && /* container */
200 (info->array.ctime != array.ctime ||
201 info->array.level != array.level)) {
202 st->ss->free_super(st);
203 continue;
204 }
205 /* some formats (imsm) have free-floating-spares
206 * with a uuid of uuid_zero, they don't
207 * have very good info about the rest of the
208 * container, so keep searching when
209 * encountering such a device. Otherwise, stop
210 * after the first successful call to
211 * ->load_super.
212 */
213 if (memcmp(uuid_zero,
214 info->uuid,
215 sizeof(uuid_zero)) == 0) {
216 st->ss->free_super(st);
217 continue;
218 }
219 break;
220 }
221
222 /* Ok, we have some info to print... */
223 if (inactive && info)
224 str = map_num(pers, info->array.level);
225 else
226 str = map_num(pers, array.level);
227
228 if (c->export) {
229 if (array.raid_disks) {
230 if (str)
231 printf("MD_LEVEL=%s\n", str);
232 printf("MD_DEVICES=%d\n", array.raid_disks);
233 } else {
234 if (is_container)
235 printf("MD_LEVEL=container\n");
236 printf("MD_DEVICES=%d\n", array.nr_disks);
237 }
238 if (container) {
239 printf("MD_CONTAINER=%s\n", container);
240 printf("MD_MEMBER=%s\n", member);
241 } else {
242 if (sra && sra->array.major_version < 0)
243 printf("MD_METADATA=%s\n", sra->text_version);
244 else
245 printf("MD_METADATA=%d.%d\n",
246 array.major_version,
247 array.minor_version);
248 }
249
250 if (st && st->sb && info) {
251 char nbuf[64];
252 struct map_ent *mp, *map = NULL;
253
254 fname_from_uuid(st, info, nbuf, ':');
255 printf("MD_UUID=%s\n", nbuf + 5);
256 mp = map_by_uuid(&map, info->uuid);
257 if (mp && mp->path && strncmp(mp->path, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0) {
258 printf("MD_DEVNAME=");
259 print_escape(mp->path + DEV_MD_DIR_LEN);
260 putchar('\n');
261 }
262
263 if (st->ss->export_detail_super)
264 st->ss->export_detail_super(st);
265 map_free(map);
266 } else {
267 struct map_ent *mp, *map = NULL;
268 char nbuf[64];
269 mp = map_by_devnm(&map, fd2devnm(fd));
270 if (mp) {
271 __fname_from_uuid(mp->uuid, 0, nbuf, ':');
272 printf("MD_UUID=%s\n", nbuf+5);
273 }
274 if (mp && mp->path &&
275 strncmp(mp->path, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0) {
276 printf("MD_DEVNAME=");
277 print_escape(mp->path + DEV_MD_DIR_LEN);
278 putchar('\n');
279 }
280 map_free(map);
281 }
282 if (!c->no_devices && sra) {
283 struct mdinfo *mdi;
284 for (mdi = sra->devs; mdi; mdi = mdi->next) {
285 char *path;
286 char *sysdev = xstrdup(mdi->sys_name);
287 char *cp;
288
289 path = map_dev(mdi->disk.major,
290 mdi->disk.minor, 0);
291 for (cp = sysdev; *cp; cp++)
292 if (!isalnum(*cp))
293 *cp = '_';
294
295 if (mdi->disk.raid_disk >= 0)
296 printf("MD_DEVICE_%s_ROLE=%d\n",
297 sysdev,
298 mdi->disk.raid_disk);
299 else
300 printf("MD_DEVICE_%s_ROLE=spare\n",
301 sysdev);
302 if (path)
303 printf("MD_DEVICE_%s_DEV=%s\n",
304 sysdev, path);
305 free(sysdev);
306 }
307 }
308 goto out;
309 }
310
311 disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
312 for (d = 0; d < max_disks * 2; d++) {
313 disks[d].state = (1 << MD_DISK_REMOVED);
314 disks[d].major = disks[d].minor = 0;
315 disks[d].number = -1;
316 disks[d].raid_disk = d / 2;
317 }
318
319 next = array.raid_disks * 2;
320 if (inactive) {
321 struct mdinfo *mdi;
322 for (mdi = sra->devs; mdi; mdi = mdi->next) {
323 disks[next++] = mdi->disk;
324 disks[next - 1].number = -1;
325 }
326 } else for (d = 0; d < max_disks; d++) {
327 mdu_disk_info_t disk;
328 disk.number = d;
329 if (md_get_disk_info(fd, &disk) < 0) {
330 if (d < array.raid_disks)
331 pr_err("cannot get device detail for device %d: %s\n",
332 d, strerror(errno));
333 continue;
334 }
335 if (disk.major == 0 && disk.minor == 0)
336 continue;
337 if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks &&
338 disks[disk.raid_disk * 2].state == (1 << MD_DISK_REMOVED) &&
339 ((disk.state & (1 << MD_DISK_JOURNAL)) == 0))
340 disks[disk.raid_disk * 2] = disk;
341 else if (disk.raid_disk >= 0 &&
342 disk.raid_disk < array.raid_disks &&
343 disks[disk.raid_disk * 2 + 1].state ==
344 (1 << MD_DISK_REMOVED) &&
345 !(disk.state & (1 << MD_DISK_JOURNAL)))
346 disks[disk.raid_disk * 2 + 1] = disk;
347 else if (next < max_disks * 2)
348 disks[next++] = disk;
349 }
350
351 avail = xcalloc(array.raid_disks, 1);
352
353 for (d = 0; d < array.raid_disks; d++) {
354 char dv[PATH_MAX], dv_rep[PATH_MAX];
355 snprintf(dv, PATH_MAX, "/sys/dev/block/%d:%d",
356 disks[d*2].major, disks[d*2].minor);
357 snprintf(dv_rep, PATH_MAX, "/sys/dev/block/%d:%d",
358 disks[d*2+1].major, disks[d*2+1].minor);
359
360 if ((is_dev_alive(dv) && (disks[d*2].state & (1<<MD_DISK_SYNC))) ||
361 (is_dev_alive(dv_rep) && (disks[d*2+1].state & (1<<MD_DISK_SYNC)))) {
362 avail_disks ++;
363 avail[d] = 1;
364 } else
365 rv |= !! c->test;
366 }
367
368 if (c->brief) {
369 mdu_bitmap_file_t bmf;
370 if (inactive && !is_container)
371 printf("INACTIVE-ARRAY %s", dev);
372 else
373 printf("ARRAY %s", dev);
374 if (c->verbose > 0) {
375 if (array.raid_disks)
376 printf(" level=%s num-devices=%d",
377 str ? str : "-unknown-",
378 array.raid_disks);
379 else if (is_container)
380 printf(" level=container num-devices=%d",
381 array.nr_disks);
382 else
383 printf(" num-devices=%d", array.nr_disks);
384 }
385 if (container) {
386 printf(" container=%s", container);
387 printf(" member=%s", member);
388 } else {
389 if (sra && sra->array.major_version < 0)
390 printf(" metadata=%s", sra->text_version);
391 else
392 printf(" metadata=%d.%d", array.major_version,
393 array.minor_version);
394 }
395
396 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
397 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
398 printf(" bitmap=%s", bmf.pathname);
399 }
400 } else {
401 mdu_bitmap_file_t bmf;
402 unsigned long long larray_size;
403 struct mdstat_ent *ms = mdstat_read(0, 0);
404 struct mdstat_ent *e;
405 char *devnm;
406
407 devnm = stat2devnm(&stb);
408 for (e = ms; e; e = e->next)
409 if (strcmp(e->devnm, devnm) == 0)
410 break;
411 if (!get_dev_size(fd, NULL, &larray_size))
412 larray_size = 0;
413
414 printf("%s:\n", dev);
415
416 if (container)
417 printf(" Container : %s, member %s\n",
418 container, member);
419 else {
420 if (sra && sra->array.major_version < 0)
421 printf(" Version : %s\n",
422 sra->text_version);
423 else
424 printf(" Version : %d.%d\n",
425 array.major_version,
426 array.minor_version);
427 }
428
429 atime = array.ctime;
430 if (atime)
431 printf(" Creation Time : %.24s\n", ctime(&atime));
432 if (is_container)
433 str = "container";
434 if (str)
435 printf(" Raid Level : %s\n", str);
436 if (larray_size)
437 printf(" Array Size : %llu%s\n",
438 (larray_size >> 10),
439 human_size(larray_size));
440 if (array.level >= 1) {
441 if (sra)
442 array.major_version = sra->array.major_version;
443 if (array.major_version != 0 &&
444 (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
445 unsigned long long dsize;
446
447 dsize = get_component_size(fd);
448 if (dsize > 0)
449 printf(" Used Dev Size : %llu%s\n",
450 dsize/2,
451 human_size((long long)dsize<<9));
452 else
453 printf(" Used Dev Size : unknown\n");
454 } else
455 printf(" Used Dev Size : %lu%s\n",
456 (unsigned long)array.size,
457 human_size((unsigned long long)
458 array.size << 10));
459 }
460 if (array.raid_disks)
461 printf(" Raid Devices : %d\n", array.raid_disks);
462 printf(" Total Devices : %d\n", array.nr_disks);
463 if (!container &&
464 ((sra == NULL && array.major_version == 0) ||
465 (sra && sra->array.major_version == 0)))
466 printf(" Preferred Minor : %d\n", array.md_minor);
467 if (sra == NULL || sra->array.major_version >= 0)
468 printf(" Persistence : Superblock is %spersistent\n",
469 array.not_persistent ? "not " : "");
470 printf("\n");
471 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
472 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
473 printf(" Intent Bitmap : %s\n", bmf.pathname);
474 printf("\n");
475 } else if (array.state & (1<<MD_SB_CLUSTERED))
476 printf(" Intent Bitmap : Internal(Clustered)\n\n");
477 else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
478 printf(" Intent Bitmap : Internal\n\n");
479 atime = array.utime;
480 if (atime)
481 printf(" Update Time : %.24s\n", ctime(&atime));
482 if (array.raid_disks) {
483 static char *sync_action[] = {
484 ", recovering", ", resyncing",
485 ", reshaping", ", checking" };
486 char *st;
487 if (avail_disks == array.raid_disks)
488 st = "";
489 else if (!enough(array.level, array.raid_disks,
490 array.layout, 1, avail))
491 st = ", FAILED";
492 else
493 st = ", degraded";
494
495 if (array.state & (1 << MD_SB_CLEAN)) {
496 if ((array.level == 0) ||
497 (array.level == LEVEL_LINEAR))
498 arrayst = map_num_s(sysfs_array_states,
499 sra->array_state);
500 else
501 arrayst = "clean";
502 } else {
503 arrayst = "active";
504 if (array.state & (1<<MD_SB_CLUSTERED)) {
505 for (d = 0; d < max_disks * 2; d++) {
506 char *dv;
507 mdu_disk_info_t disk = disks[d];
508
509 /* only check first valid disk in cluster env */
510 if ((disk.state & (MD_DISK_SYNC | MD_DISK_ACTIVE))
511 && (disk.major | disk.minor)) {
512 dv = map_dev_preferred(disk.major, disk.minor, 0,
513 c->prefer);
514 if (!dv)
515 continue;
516 arrayst = IsBitmapDirty(dv) ? "active" : "clean";
517 break;
518 }
519 }
520 }
521 }
522
523 printf(" State : %s%s%s%s%s%s%s \n",
524 arrayst, st,
525 (!e || (e->percent < 0 &&
526 e->percent != RESYNC_PENDING &&
527 e->percent != RESYNC_DELAYED &&
528 e->percent != RESYNC_REMOTE)) ?
529 "" : sync_action[e->resync],
530 larray_size ? "": ", Not Started",
531 (e && e->percent == RESYNC_DELAYED) ?
532 " (DELAYED)": "",
533 (e && e->percent == RESYNC_PENDING) ?
534 " (PENDING)": "",
535 (e && e->percent == RESYNC_REMOTE) ?
536 " (REMOTE)": "");
537 } else if (inactive && !is_container) {
538 printf(" State : inactive\n");
539 }
540 if (array.raid_disks)
541 printf(" Active Devices : %d\n", array.active_disks);
542 if (array.working_disks > 0)
543 printf(" Working Devices : %d\n",
544 array.working_disks);
545 if (array.raid_disks) {
546 printf(" Failed Devices : %d\n", array.failed_disks);
547 if (!external)
548 printf(" Spare Devices : %d\n", array.spare_disks);
549 }
550 printf("\n");
551 if (array.level == 5) {
552 str = map_num(r5layout, array.layout);
553 printf(" Layout : %s\n",
554 str ? str : "-unknown-");
555 }
556 if (array.level == 0 && array.layout) {
557 str = map_num(r0layout, array.layout);
558 printf(" Layout : %s\n",
559 str ? str : "-unknown-");
560 }
561 if (array.level == 6) {
562 str = map_num(r6layout, array.layout);
563 printf(" Layout : %s\n",
564 str ? str : "-unknown-");
565 }
566 if (array.level == 10) {
567 printf(" Layout :");
568 print_r10_layout(array.layout);
569 printf("\n");
570 }
571 switch (array.level) {
572 case 0:
573 case 4:
574 case 5:
575 case 10:
576 case 6:
577 if (array.chunk_size)
578 printf(" Chunk Size : %dK\n\n",
579 array.chunk_size/1024);
580 break;
581 case -1:
582 printf(" Rounding : %dK\n\n",
583 array.chunk_size/1024);
584 break;
585 default:
586 break;
587 }
588
589 if (array.raid_disks) {
590 struct mdinfo *mdi;
591
592 mdi = sysfs_read(fd, NULL, GET_CONSISTENCY_POLICY);
593 if (mdi) {
594 char *policy = map_num(consistency_policies,
595 mdi->consistency_policy);
596 sysfs_free(mdi);
597 if (policy)
598 printf("Consistency Policy : %s\n\n",
599 policy);
600 }
601 }
602
603 if (e && e->percent >= 0) {
604 static char *sync_action[] = {
605 "Rebuild", "Resync", "Reshape", "Check"};
606 printf(" %7s Status : %d%% complete\n",
607 sync_action[e->resync], e->percent);
608 }
609
610 if ((st && st->sb) && (info && info->reshape_active)) {
611 #if 0
612 This is pretty boring
613 printf(" Reshape pos'n : %llu%s\n",
614 (unsigned long long) info->reshape_progress << 9,
615 human_size((unsigned long long)
616 info->reshape_progress << 9));
617 #endif
618 if (info->delta_disks != 0)
619 printf(" Delta Devices : %d, (%d->%d)\n",
620 info->delta_disks,
621 array.raid_disks - info->delta_disks,
622 array.raid_disks);
623 if (info->new_level != array.level) {
624 str = map_num(pers, info->new_level);
625 printf(" New Level : %s\n",
626 str ? str : "-unknown-");
627 }
628 if (info->new_level != array.level ||
629 info->new_layout != array.layout) {
630 if (info->new_level == 5) {
631 str = map_num(r5layout,
632 info->new_layout);
633 printf(" New Layout : %s\n",
634 str ? str : "-unknown-");
635 }
636 if (info->new_level == 6) {
637 str = map_num(r6layout,
638 info->new_layout);
639 printf(" New Layout : %s\n",
640 str ? str : "-unknown-");
641 }
642 if (info->new_level == 10) {
643 printf(" New Layout : near=%d, %s=%d\n",
644 info->new_layout & 255,
645 (info->new_layout & 0x10000) ?
646 "offset" : "far",
647 (info->new_layout >> 8) & 255);
648 }
649 }
650 if (info->new_chunk != array.chunk_size)
651 printf(" New Chunksize : %dK\n",
652 info->new_chunk/1024);
653 printf("\n");
654 } else if (e && e->percent >= 0)
655 printf("\n");
656 free_mdstat(ms);
657
658 if (st && st->sb)
659 st->ss->detail_super(st, c->homehost, subarray);
660
661 if (array.raid_disks == 0 && sra &&
662 sra->array.major_version == -1 &&
663 sra->array.minor_version == -2 &&
664 sra->text_version[0] != '/') {
665 /* This looks like a container. Find any active arrays
666 * That claim to be a member.
667 */
668 DIR *dir = opendir("/sys/block");
669 struct dirent *de;
670
671 printf(" Member Arrays :");
672
673 while (dir && (de = readdir(dir)) != NULL) {
674 char path[287];
675 char vbuf[1024];
676 int nlen = strlen(sra->sys_name);
677 dev_t devid;
678 if (de->d_name[0] == '.')
679 continue;
680 sprintf(path,
681 "/sys/block/%s/md/metadata_version",
682 de->d_name);
683 if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
684 continue;
685 if (strncmp(vbuf, "external:", 9) ||
686 !is_subarray(vbuf + 9) ||
687 strncmp(vbuf + 10, sra->sys_name, nlen) ||
688 vbuf[10 + nlen] != '/')
689 continue;
690 devid = devnm2devid(de->d_name);
691 printf(" %s",
692 map_dev_preferred(major(devid),
693 minor(devid), 1,
694 c->prefer));
695 }
696 if (dir)
697 closedir(dir);
698 printf("\n\n");
699 }
700
701 if (!c->no_devices) {
702 if (array.raid_disks)
703 printf(" Number Major Minor RaidDevice State\n");
704 else
705 printf(" Number Major Minor RaidDevice\n");
706 }
707 }
708
709 /* if --no_devices specified, not print component devices info */
710 if (c->no_devices)
711 goto skip_devices_state;
712
713 for (d = 0; d < max_disks * 2; d++) {
714 char *dv;
715 mdu_disk_info_t disk = disks[d];
716
717 if (d >= array.raid_disks * 2 &&
718 disk.major == 0 && disk.minor == 0)
719 continue;
720 if ((d & 1) && disk.major == 0 && disk.minor == 0)
721 continue;
722 if (!c->brief) {
723 if (d == array.raid_disks*2)
724 printf("\n");
725 if (disk.number < 0 && disk.raid_disk < 0)
726 printf(" - %5d %5d - ",
727 disk.major, disk.minor);
728 else if (disk.raid_disk < 0 ||
729 disk.state & (1 << MD_DISK_JOURNAL))
730 printf(" %5d %5d %5d - ",
731 disk.number, disk.major, disk.minor);
732 else if (disk.number < 0)
733 printf(" - %5d %5d %5d ",
734 disk.major, disk.minor, disk.raid_disk);
735 else
736 printf(" %5d %5d %5d %5d ",
737 disk.number, disk.major, disk.minor,
738 disk.raid_disk);
739 }
740 if (!c->brief && array.raid_disks) {
741 if (disk.state & (1 << MD_DISK_FAULTY)) {
742 printf(" faulty");
743 if (disk.raid_disk < array.raid_disks &&
744 disk.raid_disk >= 0)
745 failed++;
746 }
747 if (disk.state & (1 << MD_DISK_ACTIVE))
748 printf(" active");
749 if (disk.state & (1 << MD_DISK_SYNC)) {
750 printf(" sync");
751 if (array.level == 10 &&
752 (array.layout & ~0x1FFFF) == 0) {
753 int nc = array.layout & 0xff;
754 int fc = (array.layout >> 8) & 0xff;
755 int copies = nc*fc;
756 if (fc == 1 &&
757 array.raid_disks % copies == 0 &&
758 copies <= 26) {
759 /* We can divide the devices
760 into 'sets' */
761 int set;
762 set = disk.raid_disk % copies;
763 printf(" set-%c", set + 'A');
764 }
765 }
766 }
767 if (disk.state & (1 << MD_DISK_REMOVED))
768 printf(" removed");
769 if (disk.state & (1 << MD_DISK_WRITEMOSTLY))
770 printf(" writemostly");
771 if (disk.state & (1 << MD_DISK_FAILFAST))
772 printf(" failfast");
773 if (disk.state & (1 << MD_DISK_JOURNAL))
774 printf(" journal");
775 if ((disk.state &
776 ((1 << MD_DISK_ACTIVE) | (1 << MD_DISK_SYNC) |
777 (1 << MD_DISK_REMOVED) | (1 << MD_DISK_FAULTY) |
778 (1 << MD_DISK_JOURNAL))) == 0) {
779 printf(" spare");
780 if (disk.raid_disk < array.raid_disks &&
781 disk.raid_disk >= 0)
782 printf(" rebuilding");
783 }
784 }
785 if (disk.state == 0)
786 spares++;
787 dv = map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
788 if (dv != NULL) {
789 if (c->brief)
790 n_devices = add_device(dv, &devices,
791 &max_devices, n_devices);
792 else
793 printf(" %s", dv);
794 } else if (disk.major | disk.minor)
795 printf(" missing");
796 if (!c->brief)
797 printf("\n");
798 }
799
800 skip_devices_state:
801 if (spares && c->brief && array.raid_disks)
802 printf(" spares=%d", spares);
803 if (c->brief && st && st->sb)
804 st->ss->brief_detail_super(st, subarray);
805 if (st)
806 st->ss->free_super(st);
807
808 if (c->brief && c->verbose > 0 && devices) {
809 qsort(devices, n_devices, sizeof(*devices), cmpstringp);
810 printf("\n devices=%s", devices[0]);
811 for (d = 1; d < n_devices; d++)
812 printf(",%s", devices[d]);
813 }
814 if (c->brief)
815 printf("\n");
816 if (c->test &&
817 !enough(array.level, array.raid_disks, array.layout, 1, avail))
818 rv = 2;
819
820 out:
821 free(info);
822 free(disks);
823 close(fd);
824 free(subarray);
825 free(avail);
826 if (devices)
827 for (d = 0; d < n_devices; d++)
828 free(devices[d]);
829 free(devices);
830 sysfs_free(sra);
831 free(st);
832 return rv;
833 }
834
835 int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
836 {
837 /* display platform capabilities for the given metadata format
838 * 'scan' in this context means iterate over all metadata types
839 */
840 int i;
841 int err = 1;
842
843 if (ss && export && ss->export_detail_platform)
844 err = ss->export_detail_platform(verbose, controller_path);
845 else if (ss && ss->detail_platform)
846 err = ss->detail_platform(verbose, 0, controller_path);
847 else if (ss) {
848 if (verbose > 0)
849 pr_err("%s metadata is platform independent\n",
850 ss->name ? : "[no name]");
851 } else if (!scan) {
852 if (verbose > 0)
853 pr_err("specify a metadata type or --scan\n");
854 }
855
856 if (!scan)
857 return err;
858
859 err = 0;
860 for (i = 0; superlist[i]; i++) {
861 struct superswitch *meta = superlist[i];
862
863 if (meta == ss)
864 continue;
865 if (verbose > 0)
866 pr_err("checking metadata %s\n",
867 meta->name ? : "[no name]");
868 if (!meta->detail_platform) {
869 if (verbose > 0)
870 pr_err("%s metadata is platform independent\n",
871 meta->name ? : "[no name]");
872 } else if (export && meta->export_detail_platform) {
873 err |= meta->export_detail_platform(verbose, controller_path);
874 } else
875 err |= meta->detail_platform(verbose, 0, controller_path);
876 }
877
878 return err;
879 }
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