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imsm: correct offset for 4k disks in --examine output
[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;
70 char *subarray = NULL;
71 int max_disks = MD_SB_DISKS; /* just a default */
72 struct mdinfo *info = NULL;
73 struct mdinfo *sra;
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 close(fd);
97 return rv;
98 }
99 }
100 external = (sra != NULL && sra->array.major_version == -1 &&
101 sra->array.minor_version == -2);
102 inactive = (sra != NULL && !md_array_is_active(sra));
103 st = super_by_fd(fd, &subarray);
104 if (md_get_array_info(fd, &array)) {
105 if (errno == ENODEV) {
106 if (sra->array.major_version == -1 &&
107 sra->array.minor_version == -1 &&
108 sra->devs == NULL) {
109 pr_err("Array associated with md device %s does not exist.\n",
110 dev);
111 close(fd);
112 sysfs_free(sra);
113 return rv;
114 }
115 array = sra->array;
116 } else {
117 pr_err("cannot get array detail for %s: %s\n",
118 dev, strerror(errno));
119 close(fd);
120 return rv;
121 }
122 }
123
124 if (array.raid_disks == 0 && external)
125 is_container = 1;
126 if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
127 stb.st_rdev = 0;
128 rv = 0;
129
130 if (st)
131 max_disks = st->max_devs;
132
133 if (subarray) {
134 /* This is a subarray of some container.
135 * We want the name of the container, and the member
136 */
137 dev_t devid = devnm2devid(st->container_devnm);
138 int cfd, err;
139
140 member = subarray;
141 container = map_dev_preferred(major(devid), minor(devid),
142 1, c->prefer);
143 cfd = open_dev(st->container_devnm);
144 if (cfd >= 0) {
145 err = st->ss->load_container(st, cfd, NULL);
146 close(cfd);
147 if (err == 0)
148 info = st->ss->container_content(st, subarray);
149 }
150 }
151
152 /* try to load a superblock. Try sra->devs first, then try ioctl */
153 if (st && !info)
154 for (d = 0, subdev = sra ? sra->devs : NULL;
155 d < max_disks || subdev;
156 subdev ? (void)(subdev = subdev->next) : (void)(d++)){
157 mdu_disk_info_t disk;
158 char *dv;
159 int fd2;
160 int err;
161
162 if (subdev)
163 disk = subdev->disk;
164 else {
165 disk.number = d;
166 if (md_get_disk_info(fd, &disk) < 0)
167 continue;
168 if (d >= array.raid_disks &&
169 disk.major == 0 && disk.minor == 0)
170 continue;
171 }
172
173 if (array.raid_disks > 0 &&
174 (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
175 continue;
176
177 dv = map_dev(disk.major, disk.minor, 1);
178 if (!dv)
179 continue;
180
181 fd2 = dev_open(dv, O_RDONLY);
182 if (fd2 < 0)
183 continue;
184
185 if (st->sb)
186 st->ss->free_super(st);
187
188 err = st->ss->load_super(st, fd2, NULL);
189 close(fd2);
190 if (err)
191 continue;
192 if (info)
193 free(info);
194 if (subarray)
195 info = st->ss->container_content(st, subarray);
196 else {
197 info = xmalloc(sizeof(*info));
198 st->ss->getinfo_super(st, info, NULL);
199 }
200 if (!info)
201 continue;
202
203 if (array.raid_disks != 0 && /* container */
204 (info->array.ctime != array.ctime ||
205 info->array.level != array.level)) {
206 st->ss->free_super(st);
207 continue;
208 }
209 /* some formats (imsm) have free-floating-spares
210 * with a uuid of uuid_zero, they don't
211 * have very good info about the rest of the
212 * container, so keep searching when
213 * encountering such a device. Otherwise, stop
214 * after the first successful call to
215 * ->load_super.
216 */
217 if (memcmp(uuid_zero,
218 info->uuid,
219 sizeof(uuid_zero)) == 0) {
220 st->ss->free_super(st);
221 continue;
222 }
223 break;
224 }
225
226 /* Ok, we have some info to print... */
227 if (inactive && info)
228 str = map_num(pers, info->array.level);
229 else
230 str = map_num(pers, array.level);
231
232 if (c->export) {
233 if (array.raid_disks) {
234 if (str)
235 printf("MD_LEVEL=%s\n", str);
236 printf("MD_DEVICES=%d\n", array.raid_disks);
237 } else {
238 if (is_container)
239 printf("MD_LEVEL=container\n");
240 printf("MD_DEVICES=%d\n", array.nr_disks);
241 }
242 if (container) {
243 printf("MD_CONTAINER=%s\n", container);
244 printf("MD_MEMBER=%s\n", member);
245 } else {
246 if (sra && sra->array.major_version < 0)
247 printf("MD_METADATA=%s\n", sra->text_version);
248 else
249 printf("MD_METADATA=%d.%d\n",
250 array.major_version,
251 array.minor_version);
252 }
253
254 if (st && st->sb && info) {
255 char nbuf[64];
256 struct map_ent *mp, *map = NULL;
257
258 fname_from_uuid(st, info, nbuf, ':');
259 printf("MD_UUID=%s\n", nbuf + 5);
260 mp = map_by_uuid(&map, info->uuid);
261 if (mp && mp->path &&
262 strncmp(mp->path, "/dev/md/", 8) == 0) {
263 printf("MD_DEVNAME=");
264 print_escape(mp->path + 8);
265 putchar('\n');
266 }
267
268 if (st->ss->export_detail_super)
269 st->ss->export_detail_super(st);
270 map_free(map);
271 } else {
272 struct map_ent *mp, *map = NULL;
273 char nbuf[64];
274 mp = map_by_devnm(&map, fd2devnm(fd));
275 if (mp) {
276 __fname_from_uuid(mp->uuid, 0, nbuf, ':');
277 printf("MD_UUID=%s\n", nbuf+5);
278 }
279 if (mp && mp->path &&
280 strncmp(mp->path, "/dev/md/", 8) == 0) {
281 printf("MD_DEVNAME=");
282 print_escape(mp->path+8);
283 putchar('\n');
284 }
285 map_free(map);
286 }
287 if (!c->no_devices && sra) {
288 struct mdinfo *mdi;
289 for (mdi = sra->devs; mdi; mdi = mdi->next) {
290 char *path;
291 char *sysdev = xstrdup(mdi->sys_name);
292 char *cp;
293
294 path = map_dev(mdi->disk.major,
295 mdi->disk.minor, 0);
296 for (cp = sysdev; *cp; cp++)
297 if (!isalnum(*cp))
298 *cp = '_';
299
300 if (mdi->disk.raid_disk >= 0)
301 printf("MD_DEVICE_%s_ROLE=%d\n",
302 sysdev,
303 mdi->disk.raid_disk);
304 else
305 printf("MD_DEVICE_%s_ROLE=spare\n",
306 sysdev);
307 if (path)
308 printf("MD_DEVICE_%s_DEV=%s\n",
309 sysdev, path);
310 }
311 }
312 goto out;
313 }
314
315 disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
316 for (d = 0; d < max_disks * 2; d++) {
317 disks[d].state = (1 << MD_DISK_REMOVED);
318 disks[d].major = disks[d].minor = 0;
319 disks[d].number = -1;
320 disks[d].raid_disk = d / 2;
321 }
322
323 next = array.raid_disks * 2;
324 if (inactive) {
325 struct mdinfo *mdi;
326 for (mdi = sra->devs; mdi; mdi = mdi->next) {
327 disks[next++] = mdi->disk;
328 disks[next - 1].number = -1;
329 }
330 } else for (d = 0; d < max_disks; d++) {
331 mdu_disk_info_t disk;
332 disk.number = d;
333 if (md_get_disk_info(fd, &disk) < 0) {
334 if (d < array.raid_disks)
335 pr_err("cannot get device detail for device %d: %s\n",
336 d, strerror(errno));
337 continue;
338 }
339 if (disk.major == 0 && disk.minor == 0)
340 continue;
341 if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks &&
342 disks[disk.raid_disk * 2].state == (1 << MD_DISK_REMOVED) &&
343 ((disk.state & (1 << MD_DISK_JOURNAL)) == 0))
344 disks[disk.raid_disk * 2] = disk;
345 else if (disk.raid_disk >= 0 &&
346 disk.raid_disk < array.raid_disks &&
347 disks[disk.raid_disk * 2 + 1].state ==
348 (1 << MD_DISK_REMOVED) &&
349 !(disk.state & (1 << MD_DISK_JOURNAL)))
350 disks[disk.raid_disk * 2 + 1] = disk;
351 else if (next < max_disks * 2)
352 disks[next++] = disk;
353 }
354
355 avail = xcalloc(array.raid_disks, 1);
356
357 for (d = 0; d < array.raid_disks; d++) {
358 char *dv, *dv_rep;
359 dv = map_dev_preferred(disks[d*2].major,
360 disks[d*2].minor, 0, c->prefer);
361 dv_rep = map_dev_preferred(disks[d*2+1].major,
362 disks[d*2+1].minor, 0, c->prefer);
363
364 if ((dv && (disks[d*2].state & (1<<MD_DISK_SYNC))) ||
365 (dv_rep && (disks[d*2+1].state & (1<<MD_DISK_SYNC)))) {
366 avail_disks ++;
367 avail[d] = 1;
368 } else
369 rv |= !! c->test;
370 }
371
372 if (c->brief) {
373 mdu_bitmap_file_t bmf;
374 if (inactive && !is_container)
375 printf("INACTIVE-ARRAY %s", dev);
376 else
377 printf("ARRAY %s", dev);
378 if (c->verbose > 0) {
379 if (array.raid_disks)
380 printf(" level=%s num-devices=%d",
381 str ? str : "-unknown-",
382 array.raid_disks);
383 else if (is_container)
384 printf(" level=container num-devices=%d",
385 array.nr_disks);
386 else
387 printf(" num-devices=%d", array.nr_disks);
388 }
389 if (container) {
390 printf(" container=%s", container);
391 printf(" member=%s", member);
392 } else {
393 if (sra && sra->array.major_version < 0)
394 printf(" metadata=%s", sra->text_version);
395 else
396 printf(" metadata=%d.%d", array.major_version,
397 array.minor_version);
398 }
399
400 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
401 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
402 printf(" bitmap=%s", bmf.pathname);
403 }
404 } else {
405 mdu_bitmap_file_t bmf;
406 unsigned long long larray_size;
407 struct mdstat_ent *ms = mdstat_read(0, 0);
408 struct mdstat_ent *e;
409 char *devnm;
410
411 devnm = stat2devnm(&stb);
412 for (e = ms; e; e = e->next)
413 if (strcmp(e->devnm, devnm) == 0)
414 break;
415 if (!get_dev_size(fd, NULL, &larray_size))
416 larray_size = 0;
417
418 printf("%s:\n", dev);
419
420 if (container)
421 printf(" Container : %s, member %s\n",
422 container, member);
423 else {
424 if (sra && sra->array.major_version < 0)
425 printf(" Version : %s\n",
426 sra->text_version);
427 else
428 printf(" Version : %d.%d\n",
429 array.major_version,
430 array.minor_version);
431 }
432
433 atime = array.ctime;
434 if (atime)
435 printf(" Creation Time : %.24s\n", ctime(&atime));
436 if (is_container)
437 str = "container";
438 if (str)
439 printf(" Raid Level : %s\n", str);
440 if (larray_size)
441 printf(" Array Size : %llu%s\n",
442 (larray_size >> 10),
443 human_size(larray_size));
444 if (array.level >= 1) {
445 if (sra)
446 array.major_version = sra->array.major_version;
447 if (array.major_version != 0 &&
448 (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
449 unsigned long long dsize;
450
451 dsize = get_component_size(fd);
452 if (dsize > 0)
453 printf(" Used Dev Size : %llu%s\n",
454 dsize/2,
455 human_size((long long)dsize<<9));
456 else
457 printf(" Used Dev Size : unknown\n");
458 } else
459 printf(" Used Dev Size : %lu%s\n",
460 (unsigned long)array.size,
461 human_size((unsigned long long)
462 array.size << 10));
463 }
464 if (array.raid_disks)
465 printf(" Raid Devices : %d\n", array.raid_disks);
466 printf(" Total Devices : %d\n", array.nr_disks);
467 if (!container &&
468 ((sra == NULL && array.major_version == 0) ||
469 (sra && sra->array.major_version == 0)))
470 printf(" Preferred Minor : %d\n", array.md_minor);
471 if (sra == NULL || sra->array.major_version >= 0)
472 printf(" Persistence : Superblock is %spersistent\n",
473 array.not_persistent ? "not " : "");
474 printf("\n");
475 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
476 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
477 printf(" Intent Bitmap : %s\n", bmf.pathname);
478 printf("\n");
479 } else if (array.state & (1<<MD_SB_CLUSTERED))
480 printf(" Intent Bitmap : Internal(Clustered)\n\n");
481 else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
482 printf(" Intent Bitmap : Internal\n\n");
483 atime = array.utime;
484 if (atime)
485 printf(" Update Time : %.24s\n", ctime(&atime));
486 if (array.raid_disks) {
487 static char *sync_action[] = {
488 ", recovering", ", resyncing",
489 ", reshaping", ", checking" };
490 char *st;
491 if (avail_disks == array.raid_disks)
492 st = "";
493 else if (!enough(array.level, array.raid_disks,
494 array.layout, 1, avail))
495 st = ", FAILED";
496 else
497 st = ", degraded";
498
499 if (array.state & (1 << MD_SB_CLEAN)) {
500 if ((array.level == 0) ||
501 (array.level == LEVEL_LINEAR))
502 arrayst = map_num(sysfs_array_states,
503 sra->array_state);
504 else
505 arrayst = "clean";
506 } else {
507 arrayst = "active";
508 if (array.state & (1<<MD_SB_CLUSTERED)) {
509 for (d = 0; d < max_disks * 2; d++) {
510 char *dv;
511 mdu_disk_info_t disk = disks[d];
512
513 /* only check first valid disk in cluster env */
514 if ((disk.state & (MD_DISK_SYNC | MD_DISK_ACTIVE))
515 && (disk.major | disk.minor)) {
516 dv = map_dev_preferred(disk.major, disk.minor, 0,
517 c->prefer);
518 if (!dv)
519 continue;
520 arrayst = IsBitmapDirty(dv) ? "active" : "clean";
521 break;
522 }
523 }
524 }
525 }
526
527 printf(" State : %s%s%s%s%s%s%s \n",
528 arrayst, st,
529 (!e || (e->percent < 0 &&
530 e->percent != RESYNC_PENDING &&
531 e->percent != RESYNC_DELAYED &&
532 e->percent != RESYNC_REMOTE)) ?
533 "" : sync_action[e->resync],
534 larray_size ? "": ", Not Started",
535 (e && e->percent == RESYNC_DELAYED) ?
536 " (DELAYED)": "",
537 (e && e->percent == RESYNC_PENDING) ?
538 " (PENDING)": "",
539 (e && e->percent == RESYNC_REMOTE) ?
540 " (REMOTE)": "");
541 } else if (inactive && !is_container) {
542 printf(" State : inactive\n");
543 }
544 if (array.raid_disks)
545 printf(" Active Devices : %d\n", array.active_disks);
546 if (array.working_disks > 0)
547 printf(" Working Devices : %d\n",
548 array.working_disks);
549 if (array.raid_disks) {
550 printf(" Failed Devices : %d\n", array.failed_disks);
551 printf(" Spare Devices : %d\n", array.spare_disks);
552 }
553 printf("\n");
554 if (array.level == 5) {
555 str = map_num(r5layout, array.layout);
556 printf(" Layout : %s\n",
557 str ? str : "-unknown-");
558 }
559 if (array.level == 0 && array.layout) {
560 str = map_num(r0layout, array.layout);
561 printf(" Layout : %s\n",
562 str ? str : "-unknown-");
563 }
564 if (array.level == 6) {
565 str = map_num(r6layout, array.layout);
566 printf(" Layout : %s\n",
567 str ? str : "-unknown-");
568 }
569 if (array.level == 10) {
570 printf(" Layout :");
571 print_r10_layout(array.layout);
572 printf("\n");
573 }
574 switch (array.level) {
575 case 0:
576 case 4:
577 case 5:
578 case 10:
579 case 6:
580 if (array.chunk_size)
581 printf(" Chunk Size : %dK\n\n",
582 array.chunk_size/1024);
583 break;
584 case -1:
585 printf(" Rounding : %dK\n\n",
586 array.chunk_size/1024);
587 break;
588 default:
589 break;
590 }
591
592 if (array.raid_disks) {
593 struct mdinfo *mdi;
594
595 mdi = sysfs_read(fd, NULL, GET_CONSISTENCY_POLICY);
596 if (mdi) {
597 char *policy = map_num(consistency_policies,
598 mdi->consistency_policy);
599 sysfs_free(mdi);
600 if (policy)
601 printf("Consistency Policy : %s\n\n",
602 policy);
603 }
604 }
605
606 if (e && e->percent >= 0) {
607 static char *sync_action[] = {
608 "Rebuild", "Resync", "Reshape", "Check"};
609 printf(" %7s Status : %d%% complete\n",
610 sync_action[e->resync], e->percent);
611 }
612
613 if ((st && st->sb) && (info && info->reshape_active)) {
614 #if 0
615 This is pretty boring
616 printf(" Reshape pos'n : %llu%s\n",
617 (unsigned long long) info->reshape_progress << 9,
618 human_size((unsigned long long)
619 info->reshape_progress << 9));
620 #endif
621 if (info->delta_disks != 0)
622 printf(" Delta Devices : %d, (%d->%d)\n",
623 info->delta_disks,
624 array.raid_disks - info->delta_disks,
625 array.raid_disks);
626 if (info->new_level != array.level) {
627 str = map_num(pers, info->new_level);
628 printf(" New Level : %s\n",
629 str ? str : "-unknown-");
630 }
631 if (info->new_level != array.level ||
632 info->new_layout != array.layout) {
633 if (info->new_level == 5) {
634 str = map_num(r5layout,
635 info->new_layout);
636 printf(" New Layout : %s\n",
637 str ? str : "-unknown-");
638 }
639 if (info->new_level == 6) {
640 str = map_num(r6layout,
641 info->new_layout);
642 printf(" New Layout : %s\n",
643 str ? str : "-unknown-");
644 }
645 if (info->new_level == 10) {
646 printf(" New Layout : near=%d, %s=%d\n",
647 info->new_layout & 255,
648 (info->new_layout & 0x10000) ?
649 "offset" : "far",
650 (info->new_layout >> 8) & 255);
651 }
652 }
653 if (info->new_chunk != array.chunk_size)
654 printf(" New Chunksize : %dK\n",
655 info->new_chunk/1024);
656 printf("\n");
657 } else if (e && e->percent >= 0)
658 printf("\n");
659 free_mdstat(ms);
660
661 if (st && st->sb)
662 st->ss->detail_super(st, c->homehost, subarray);
663
664 if (array.raid_disks == 0 && sra &&
665 sra->array.major_version == -1 &&
666 sra->array.minor_version == -2 &&
667 sra->text_version[0] != '/') {
668 /* This looks like a container. Find any active arrays
669 * That claim to be a member.
670 */
671 DIR *dir = opendir("/sys/block");
672 struct dirent *de;
673
674 printf(" Member Arrays :");
675
676 while (dir && (de = readdir(dir)) != NULL) {
677 char path[287];
678 char vbuf[1024];
679 int nlen = strlen(sra->sys_name);
680 dev_t devid;
681 if (de->d_name[0] == '.')
682 continue;
683 sprintf(path,
684 "/sys/block/%s/md/metadata_version",
685 de->d_name);
686 if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
687 continue;
688 if (strncmp(vbuf, "external:", 9) ||
689 !is_subarray(vbuf + 9) ||
690 strncmp(vbuf + 10, sra->sys_name, nlen) ||
691 vbuf[10 + nlen] != '/')
692 continue;
693 devid = devnm2devid(de->d_name);
694 printf(" %s",
695 map_dev_preferred(major(devid),
696 minor(devid), 1,
697 c->prefer));
698 }
699 if (dir)
700 closedir(dir);
701 printf("\n\n");
702 }
703
704 if (!c->no_devices) {
705 if (array.raid_disks)
706 printf(" Number Major Minor RaidDevice State\n");
707 else
708 printf(" Number Major Minor RaidDevice\n");
709 }
710 }
711
712 /* if --no_devices specified, not print component devices info */
713 if (c->no_devices)
714 goto skip_devices_state;
715
716 for (d = 0; d < max_disks * 2; d++) {
717 char *dv;
718 mdu_disk_info_t disk = disks[d];
719
720 if (d >= array.raid_disks * 2 &&
721 disk.major == 0 && disk.minor == 0)
722 continue;
723 if ((d & 1) && disk.major == 0 && disk.minor == 0)
724 continue;
725 if (!c->brief) {
726 if (d == array.raid_disks*2)
727 printf("\n");
728 if (disk.number < 0 && disk.raid_disk < 0)
729 printf(" - %5d %5d - ",
730 disk.major, disk.minor);
731 else if (disk.raid_disk < 0 ||
732 disk.state & (1 << MD_DISK_JOURNAL))
733 printf(" %5d %5d %5d - ",
734 disk.number, disk.major, disk.minor);
735 else if (disk.number < 0)
736 printf(" - %5d %5d %5d ",
737 disk.major, disk.minor, disk.raid_disk);
738 else
739 printf(" %5d %5d %5d %5d ",
740 disk.number, disk.major, disk.minor,
741 disk.raid_disk);
742 }
743 if (!c->brief && array.raid_disks) {
744 if (disk.state & (1 << MD_DISK_FAULTY)) {
745 printf(" faulty");
746 if (disk.raid_disk < array.raid_disks &&
747 disk.raid_disk >= 0)
748 failed++;
749 }
750 if (disk.state & (1 << MD_DISK_ACTIVE))
751 printf(" active");
752 if (disk.state & (1 << MD_DISK_SYNC)) {
753 printf(" sync");
754 if (array.level == 10 &&
755 (array.layout & ~0x1FFFF) == 0) {
756 int nc = array.layout & 0xff;
757 int fc = (array.layout >> 8) & 0xff;
758 int copies = nc*fc;
759 if (fc == 1 &&
760 array.raid_disks % copies == 0 &&
761 copies <= 26) {
762 /* We can divide the devices
763 into 'sets' */
764 int set;
765 set = disk.raid_disk % copies;
766 printf(" set-%c", set + 'A');
767 }
768 }
769 }
770 if (disk.state & (1 << MD_DISK_REMOVED))
771 printf(" removed");
772 if (disk.state & (1 << MD_DISK_WRITEMOSTLY))
773 printf(" writemostly");
774 if (disk.state & (1 << MD_DISK_FAILFAST))
775 printf(" failfast");
776 if (disk.state & (1 << MD_DISK_JOURNAL))
777 printf(" journal");
778 if ((disk.state &
779 ((1 << MD_DISK_ACTIVE) | (1 << MD_DISK_SYNC) |
780 (1 << MD_DISK_REMOVED) | (1 << MD_DISK_FAULTY) |
781 (1 << MD_DISK_JOURNAL))) == 0) {
782 printf(" spare");
783 if (disk.raid_disk < array.raid_disks &&
784 disk.raid_disk >= 0)
785 printf(" rebuilding");
786 }
787 }
788 if (disk.state == 0)
789 spares++;
790 dv = map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
791 if (dv != NULL) {
792 if (c->brief)
793 n_devices = add_device(dv, &devices,
794 &max_devices, n_devices);
795 else
796 printf(" %s", dv);
797 } else if (disk.major | disk.minor)
798 printf(" missing");
799 if (!c->brief)
800 printf("\n");
801 }
802
803 skip_devices_state:
804 if (spares && c->brief && array.raid_disks)
805 printf(" spares=%d", spares);
806 if (c->brief && st && st->sb)
807 st->ss->brief_detail_super(st, subarray);
808 if (st)
809 st->ss->free_super(st);
810
811 if (c->brief && c->verbose > 0 && devices) {
812 qsort(devices, n_devices, sizeof(*devices), cmpstringp);
813 printf("\n devices=%s", devices[0]);
814 for (d = 1; d < n_devices; d++)
815 printf(",%s", devices[d]);
816 }
817 if (c->brief)
818 printf("\n");
819 if (c->test &&
820 !enough(array.level, array.raid_disks, array.layout, 1, avail))
821 rv = 2;
822
823 out:
824 free(info);
825 free(disks);
826 close(fd);
827 free(subarray);
828 free(avail);
829 for (d = 0; d < n_devices; d++)
830 free(devices[d]);
831 free(devices);
832 sysfs_free(sra);
833 return rv;
834 }
835
836 int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
837 {
838 /* display platform capabilities for the given metadata format
839 * 'scan' in this context means iterate over all metadata types
840 */
841 int i;
842 int err = 1;
843
844 if (ss && export && ss->export_detail_platform)
845 err = ss->export_detail_platform(verbose, controller_path);
846 else if (ss && ss->detail_platform)
847 err = ss->detail_platform(verbose, 0, controller_path);
848 else if (ss) {
849 if (verbose > 0)
850 pr_err("%s metadata is platform independent\n",
851 ss->name ? : "[no name]");
852 } else if (!scan) {
853 if (verbose > 0)
854 pr_err("specify a metadata type or --scan\n");
855 }
856
857 if (!scan)
858 return err;
859
860 err = 0;
861 for (i = 0; superlist[i]; i++) {
862 struct superswitch *meta = superlist[i];
863
864 if (meta == ss)
865 continue;
866 if (verbose > 0)
867 pr_err("checking metadata %s\n",
868 meta->name ? : "[no name]");
869 if (!meta->detail_platform) {
870 if (verbose > 0)
871 pr_err("%s metadata is platform independent\n",
872 meta->name ? : "[no name]");
873 } else if (export && meta->export_detail_platform) {
874 err |= meta->export_detail_platform(verbose, controller_path);
875 } else
876 err |= meta->detail_platform(verbose, 0, controller_path);
877 }
878
879 return err;
880 }
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