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mdadm.h: Introduced unaligned {get,put}_unaligned{16,32}()
[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;
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
85 if (fd < 0) {
86 pr_err("cannot open %s: %s\n",
87 dev, strerror(errno));
88 return rv;
89 }
90 sra = sysfs_read(fd, NULL, GET_VERSION | GET_DEVS |
91 GET_ARRAY_STATE | GET_STATE);
92 if (!sra) {
93 if (md_get_array_info(fd, &array)) {
94 pr_err("%s does not appear to be an md device\n", dev);
95 close(fd);
96 return rv;
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 close(fd);
111 sysfs_free(sra);
112 return rv;
113 }
114 array = sra->array;
115 } else {
116 pr_err("cannot get array detail for %s: %s\n",
117 dev, strerror(errno));
118 close(fd);
119 return rv;
120 }
121 }
122
123 if (array.raid_disks == 0 && external)
124 is_container = 1;
125 if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
126 stb.st_rdev = 0;
127 rv = 0;
128
129 if (st)
130 max_disks = st->max_devs;
131
132 if (subarray) {
133 /* This is a subarray of some container.
134 * We want the name of the container, and the member
135 */
136 dev_t devid = devnm2devid(st->container_devnm);
137 int cfd, err;
138
139 member = subarray;
140 container = map_dev_preferred(major(devid), minor(devid),
141 1, c->prefer);
142 cfd = open_dev(st->container_devnm);
143 if (cfd >= 0) {
144 err = st->ss->load_container(st, cfd, NULL);
145 close(cfd);
146 if (err == 0)
147 info = st->ss->container_content(st, subarray);
148 }
149 }
150
151 /* try to load a superblock. Try sra->devs first, then try ioctl */
152 if (st && !info)
153 for (d = 0, subdev = sra ? sra->devs : NULL;
154 d < max_disks || subdev;
155 subdev ? (void)(subdev = subdev->next) : (void)(d++)){
156 mdu_disk_info_t disk;
157 char *dv;
158 int fd2;
159 int err;
160
161 if (subdev)
162 disk = subdev->disk;
163 else {
164 disk.number = d;
165 if (md_get_disk_info(fd, &disk) < 0)
166 continue;
167 if (d >= array.raid_disks &&
168 disk.major == 0 && disk.minor == 0)
169 continue;
170 }
171
172 if (array.raid_disks > 0 &&
173 (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
174 continue;
175
176 dv = map_dev(disk.major, disk.minor, 1);
177 if (!dv)
178 continue;
179
180 fd2 = dev_open(dv, O_RDONLY);
181 if (fd2 < 0)
182 continue;
183
184 if (st->sb)
185 st->ss->free_super(st);
186
187 err = st->ss->load_super(st, fd2, NULL);
188 close(fd2);
189 if (err)
190 continue;
191 if (info)
192 free(info);
193 if (subarray)
194 info = st->ss->container_content(st, subarray);
195 else {
196 info = xmalloc(sizeof(*info));
197 st->ss->getinfo_super(st, info, NULL);
198 }
199 if (!info)
200 continue;
201
202 if (array.raid_disks != 0 && /* container */
203 (info->array.ctime != array.ctime ||
204 info->array.level != array.level)) {
205 st->ss->free_super(st);
206 continue;
207 }
208 /* some formats (imsm) have free-floating-spares
209 * with a uuid of uuid_zero, they don't
210 * have very good info about the rest of the
211 * container, so keep searching when
212 * encountering such a device. Otherwise, stop
213 * after the first successful call to
214 * ->load_super.
215 */
216 if (memcmp(uuid_zero,
217 info->uuid,
218 sizeof(uuid_zero)) == 0) {
219 st->ss->free_super(st);
220 continue;
221 }
222 break;
223 }
224
225 /* Ok, we have some info to print... */
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 &&
258 strncmp(mp->path, "/dev/md/", 8) == 0) {
259 printf("MD_DEVNAME=");
260 print_escape(mp->path + 8);
261 putchar('\n');
262 }
263
264 if (st->ss->export_detail_super)
265 st->ss->export_detail_super(st);
266 map_free(map);
267 } else {
268 struct map_ent *mp, *map = NULL;
269 char nbuf[64];
270 mp = map_by_devnm(&map, fd2devnm(fd));
271 if (mp) {
272 __fname_from_uuid(mp->uuid, 0, nbuf, ':');
273 printf("MD_UUID=%s\n", nbuf+5);
274 }
275 if (mp && mp->path &&
276 strncmp(mp->path, "/dev/md/", 8) == 0) {
277 printf("MD_DEVNAME=");
278 print_escape(mp->path+8);
279 putchar('\n');
280 }
281 map_free(map);
282 }
283 if (sra) {
284 struct mdinfo *mdi;
285 for (mdi = sra->devs; mdi; mdi = mdi->next) {
286 char *path;
287 char *sysdev = xstrdup(mdi->sys_name);
288 char *cp;
289
290 path = map_dev(mdi->disk.major,
291 mdi->disk.minor, 0);
292 for (cp = sysdev; *cp; cp++)
293 if (!isalnum(*cp))
294 *cp = '_';
295
296 if (mdi->disk.raid_disk >= 0)
297 printf("MD_DEVICE_%s_ROLE=%d\n",
298 sysdev,
299 mdi->disk.raid_disk);
300 else
301 printf("MD_DEVICE_%s_ROLE=spare\n",
302 sysdev);
303 if (path)
304 printf("MD_DEVICE_%s_DEV=%s\n",
305 sysdev, path);
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
355 if ((disks[d*2].state & (1<<MD_DISK_SYNC)) ||
356 (disks[d*2+1].state & (1<<MD_DISK_SYNC))) {
357 avail_disks ++;
358 avail[d] = 1;
359 } else
360 rv |= !! c->test;
361 }
362
363 if (c->brief) {
364 mdu_bitmap_file_t bmf;
365 if (inactive && !is_container)
366 printf("INACTIVE-ARRAY %s", dev);
367 else
368 printf("ARRAY %s", dev);
369 if (c->verbose > 0) {
370 if (array.raid_disks)
371 printf(" level=%s num-devices=%d",
372 str ? str : "-unknown-",
373 array.raid_disks);
374 else if (is_container)
375 printf(" level=container num-devices=%d",
376 array.nr_disks);
377 else
378 printf(" num-devices=%d", array.nr_disks);
379 }
380 if (container) {
381 printf(" container=%s", container);
382 printf(" member=%s", member);
383 } else {
384 if (sra && sra->array.major_version < 0)
385 printf(" metadata=%s", sra->text_version);
386 else
387 printf(" metadata=%d.%d", array.major_version,
388 array.minor_version);
389 }
390
391 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
392 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
393 printf(" bitmap=%s", bmf.pathname);
394 }
395 } else {
396 mdu_bitmap_file_t bmf;
397 unsigned long long larray_size;
398 struct mdstat_ent *ms = mdstat_read(0, 0);
399 struct mdstat_ent *e;
400 char *devnm;
401
402 devnm = stat2devnm(&stb);
403 for (e = ms; e; e = e->next)
404 if (strcmp(e->devnm, devnm) == 0)
405 break;
406 if (!get_dev_size(fd, NULL, &larray_size))
407 larray_size = 0;
408
409 printf("%s:\n", dev);
410
411 if (container)
412 printf(" Container : %s, member %s\n",
413 container, member);
414 else {
415 if (sra && sra->array.major_version < 0)
416 printf(" Version : %s\n",
417 sra->text_version);
418 else
419 printf(" Version : %d.%d\n",
420 array.major_version,
421 array.minor_version);
422 }
423
424 atime = array.ctime;
425 if (atime)
426 printf(" Creation Time : %.24s\n", ctime(&atime));
427 if (is_container)
428 str = "container";
429 if (str)
430 printf(" Raid Level : %s\n", str);
431 if (larray_size)
432 printf(" Array Size : %llu%s\n",
433 (larray_size >> 10),
434 human_size(larray_size));
435 if (array.level >= 1) {
436 if (sra)
437 array.major_version = sra->array.major_version;
438 if (array.major_version != 0 &&
439 (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
440 unsigned long long dsize;
441
442 dsize = get_component_size(fd);
443 if (dsize > 0)
444 printf(" Used Dev Size : %llu%s\n",
445 dsize/2,
446 human_size((long long)dsize<<9));
447 else
448 printf(" Used Dev Size : unknown\n");
449 } else
450 printf(" Used Dev Size : %lu%s\n",
451 (unsigned long)array.size,
452 human_size((unsigned long long)
453 array.size << 10));
454 }
455 if (array.raid_disks)
456 printf(" Raid Devices : %d\n", array.raid_disks);
457 printf(" Total Devices : %d\n", array.nr_disks);
458 if (!container &&
459 ((sra == NULL && array.major_version == 0) ||
460 (sra && sra->array.major_version == 0)))
461 printf(" Preferred Minor : %d\n", array.md_minor);
462 if (sra == NULL || sra->array.major_version >= 0)
463 printf(" Persistence : Superblock is %spersistent\n",
464 array.not_persistent ? "not " : "");
465 printf("\n");
466 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
467 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
468 printf(" Intent Bitmap : %s\n", bmf.pathname);
469 printf("\n");
470 } else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
471 printf(" Intent Bitmap : Internal\n\n");
472 atime = array.utime;
473 if (atime)
474 printf(" Update Time : %.24s\n", ctime(&atime));
475 if (array.raid_disks) {
476 static char *sync_action[] = {
477 ", recovering", ", resyncing",
478 ", reshaping", ", checking" };
479 char *st;
480 if (avail_disks == array.raid_disks)
481 st = "";
482 else if (!enough(array.level, array.raid_disks,
483 array.layout, 1, avail))
484 st = ", FAILED";
485 else
486 st = ", degraded";
487
488 printf(" State : %s%s%s%s%s%s \n",
489 (array.state & (1 << MD_SB_CLEAN)) ?
490 "clean" : "active", st,
491 (!e || (e->percent < 0 &&
492 e->percent != RESYNC_PENDING &&
493 e->percent != RESYNC_DELAYED)) ?
494 "" : sync_action[e->resync],
495 larray_size ? "": ", Not Started",
496 (e && e->percent == RESYNC_DELAYED) ?
497 " (DELAYED)": "",
498 (e && e->percent == RESYNC_PENDING) ?
499 " (PENDING)": "");
500 } else if (inactive && !is_container) {
501 printf(" State : inactive\n");
502 }
503 if (array.raid_disks)
504 printf(" Active Devices : %d\n", array.active_disks);
505 if (array.working_disks > 0)
506 printf(" Working Devices : %d\n",
507 array.working_disks);
508 if (array.raid_disks) {
509 printf(" Failed Devices : %d\n", array.failed_disks);
510 printf(" Spare Devices : %d\n", array.spare_disks);
511 }
512 printf("\n");
513 if (array.level == 5) {
514 str = map_num(r5layout, array.layout);
515 printf(" Layout : %s\n",
516 str ? str : "-unknown-");
517 }
518 if (array.level == 6) {
519 str = map_num(r6layout, array.layout);
520 printf(" Layout : %s\n",
521 str ? str : "-unknown-");
522 }
523 if (array.level == 10) {
524 printf(" Layout :");
525 print_r10_layout(array.layout);
526 printf("\n");
527 }
528 switch (array.level) {
529 case 0:
530 case 4:
531 case 5:
532 case 10:
533 case 6:
534 if (array.chunk_size)
535 printf(" Chunk Size : %dK\n\n",
536 array.chunk_size/1024);
537 break;
538 case -1:
539 printf(" Rounding : %dK\n\n",
540 array.chunk_size/1024);
541 break;
542 default:
543 break;
544 }
545
546 if (array.raid_disks) {
547 struct mdinfo *mdi;
548
549 mdi = sysfs_read(fd, NULL, GET_CONSISTENCY_POLICY);
550 if (mdi) {
551 char *policy = map_num(consistency_policies,
552 mdi->consistency_policy);
553 sysfs_free(mdi);
554 if (policy)
555 printf("Consistency Policy : %s\n\n",
556 policy);
557 }
558 }
559
560 if (e && e->percent >= 0) {
561 static char *sync_action[] = {
562 "Rebuild", "Resync", "Reshape", "Check"};
563 printf(" %7s Status : %d%% complete\n",
564 sync_action[e->resync], e->percent);
565 }
566
567 if ((st && st->sb) && (info && info->reshape_active)) {
568 #if 0
569 This is pretty boring
570 printf(" Reshape pos'n : %llu%s\n",
571 (unsigned long long) info->reshape_progress << 9,
572 human_size((unsigned long long)
573 info->reshape_progress << 9));
574 #endif
575 if (info->delta_disks != 0)
576 printf(" Delta Devices : %d, (%d->%d)\n",
577 info->delta_disks,
578 array.raid_disks - info->delta_disks,
579 array.raid_disks);
580 if (info->new_level != array.level) {
581 str = map_num(pers, info->new_level);
582 printf(" New Level : %s\n",
583 str ? str : "-unknown-");
584 }
585 if (info->new_level != array.level ||
586 info->new_layout != array.layout) {
587 if (info->new_level == 5) {
588 str = map_num(r5layout,
589 info->new_layout);
590 printf(" New Layout : %s\n",
591 str ? str : "-unknown-");
592 }
593 if (info->new_level == 6) {
594 str = map_num(r6layout,
595 info->new_layout);
596 printf(" New Layout : %s\n",
597 str ? str : "-unknown-");
598 }
599 if (info->new_level == 10) {
600 printf(" New Layout : near=%d, %s=%d\n",
601 info->new_layout & 255,
602 (info->new_layout & 0x10000) ?
603 "offset" : "far",
604 (info->new_layout >> 8) & 255);
605 }
606 }
607 if (info->new_chunk != array.chunk_size)
608 printf(" New Chunksize : %dK\n",
609 info->new_chunk/1024);
610 printf("\n");
611 } else if (e && e->percent >= 0)
612 printf("\n");
613 free_mdstat(ms);
614
615 if (st && st->sb)
616 st->ss->detail_super(st, c->homehost);
617
618 if (array.raid_disks == 0 && sra &&
619 sra->array.major_version == -1 &&
620 sra->array.minor_version == -2 &&
621 sra->text_version[0] != '/') {
622 /* This looks like a container. Find any active arrays
623 * That claim to be a member.
624 */
625 DIR *dir = opendir("/sys/block");
626 struct dirent *de;
627
628 printf(" Member Arrays :");
629
630 while (dir && (de = readdir(dir)) != NULL) {
631 char path[287];
632 char vbuf[1024];
633 int nlen = strlen(sra->sys_name);
634 dev_t devid;
635 if (de->d_name[0] == '.')
636 continue;
637 sprintf(path,
638 "/sys/block/%s/md/metadata_version",
639 de->d_name);
640 if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
641 continue;
642 if (strncmp(vbuf, "external:", 9) ||
643 !is_subarray(vbuf + 9) ||
644 strncmp(vbuf + 10, sra->sys_name, nlen) ||
645 vbuf[10 + nlen] != '/')
646 continue;
647 devid = devnm2devid(de->d_name);
648 printf(" %s",
649 map_dev_preferred(major(devid),
650 minor(devid), 1,
651 c->prefer));
652 }
653 if (dir)
654 closedir(dir);
655 printf("\n\n");
656 }
657
658 if (array.raid_disks)
659 printf(" Number Major Minor RaidDevice State\n");
660 else
661 printf(" Number Major Minor RaidDevice\n");
662 }
663 free(info);
664
665 for (d = 0; d < max_disks * 2; d++) {
666 char *dv;
667 mdu_disk_info_t disk = disks[d];
668
669 if (d >= array.raid_disks * 2 &&
670 disk.major == 0 && disk.minor == 0)
671 continue;
672 if ((d & 1) && disk.major == 0 && disk.minor == 0)
673 continue;
674 if (!c->brief) {
675 if (d == array.raid_disks*2)
676 printf("\n");
677 if (disk.number < 0 && disk.raid_disk < 0)
678 printf(" - %5d %5d - ",
679 disk.major, disk.minor);
680 else if (disk.raid_disk < 0 ||
681 disk.state & (1 << MD_DISK_JOURNAL))
682 printf(" %5d %5d %5d - ",
683 disk.number, disk.major, disk.minor);
684 else if (disk.number < 0)
685 printf(" - %5d %5d %5d ",
686 disk.major, disk.minor, disk.raid_disk);
687 else
688 printf(" %5d %5d %5d %5d ",
689 disk.number, disk.major, disk.minor,
690 disk.raid_disk);
691 }
692 if (!c->brief && array.raid_disks) {
693 if (disk.state & (1 << MD_DISK_FAULTY)) {
694 printf(" faulty");
695 if (disk.raid_disk < array.raid_disks &&
696 disk.raid_disk >= 0)
697 failed++;
698 }
699 if (disk.state & (1 << MD_DISK_ACTIVE))
700 printf(" active");
701 if (disk.state & (1 << MD_DISK_SYNC)) {
702 printf(" sync");
703 if (array.level == 10 &&
704 (array.layout & ~0x1FFFF) == 0) {
705 int nc = array.layout & 0xff;
706 int fc = (array.layout >> 8) & 0xff;
707 int copies = nc*fc;
708 if (fc == 1 &&
709 array.raid_disks % copies == 0 &&
710 copies <= 26) {
711 /* We can divide the devices
712 into 'sets' */
713 int set;
714 set = disk.raid_disk % copies;
715 printf(" set-%c", set + 'A');
716 }
717 }
718 }
719 if (disk.state & (1 << MD_DISK_REMOVED))
720 printf(" removed");
721 if (disk.state & (1 << MD_DISK_WRITEMOSTLY))
722 printf(" writemostly");
723 if (disk.state & (1 << MD_DISK_FAILFAST))
724 printf(" failfast");
725 if (disk.state & (1 << MD_DISK_JOURNAL))
726 printf(" journal");
727 if ((disk.state &
728 ((1 << MD_DISK_ACTIVE) | (1 << MD_DISK_SYNC) |
729 (1 << MD_DISK_REMOVED) | (1 << MD_DISK_FAULTY) |
730 (1 << MD_DISK_JOURNAL))) == 0) {
731 printf(" spare");
732 if (disk.raid_disk < array.raid_disks &&
733 disk.raid_disk >= 0)
734 printf(" rebuilding");
735 }
736 }
737 if (disk.state == 0)
738 spares++;
739 dv = map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
740 if (dv != NULL) {
741 if (c->brief)
742 n_devices = add_device(dv, &devices,
743 &max_devices, n_devices);
744 else
745 printf(" %s", dv);
746 }
747 if (!c->brief)
748 printf("\n");
749 }
750 if (spares && c->brief && array.raid_disks)
751 printf(" spares=%d", spares);
752 if (c->brief && st && st->sb)
753 st->ss->brief_detail_super(st);
754 if (st)
755 st->ss->free_super(st);
756
757 if (c->brief && c->verbose > 0 && devices) {
758 qsort(devices, n_devices, sizeof(*devices), cmpstringp);
759 printf("\n devices=%s", devices[0]);
760 for (d = 1; d < n_devices; d++)
761 printf(",%s", devices[d]);
762 }
763 if (c->brief)
764 printf("\n");
765 if (c->test &&
766 !enough(array.level, array.raid_disks, array.layout, 1, avail))
767 rv = 2;
768
769 free(disks);
770 out:
771 close(fd);
772 free(subarray);
773 free(avail);
774 for (d = 0; d < n_devices; d++)
775 free(devices[d]);
776 free(devices);
777 sysfs_free(sra);
778 return rv;
779 }
780
781 int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
782 {
783 /* display platform capabilities for the given metadata format
784 * 'scan' in this context means iterate over all metadata types
785 */
786 int i;
787 int err = 1;
788
789 if (ss && export && ss->export_detail_platform)
790 err = ss->export_detail_platform(verbose, controller_path);
791 else if (ss && ss->detail_platform)
792 err = ss->detail_platform(verbose, 0, controller_path);
793 else if (ss) {
794 if (verbose > 0)
795 pr_err("%s metadata is platform independent\n",
796 ss->name ? : "[no name]");
797 } else if (!scan) {
798 if (verbose > 0)
799 pr_err("specify a metadata type or --scan\n");
800 }
801
802 if (!scan)
803 return err;
804
805 err = 0;
806 for (i = 0; superlist[i]; i++) {
807 struct superswitch *meta = superlist[i];
808
809 if (meta == ss)
810 continue;
811 if (verbose > 0)
812 pr_err("checking metadata %s\n",
813 meta->name ? : "[no name]");
814 if (!meta->detail_platform) {
815 if (verbose > 0)
816 pr_err("%s metadata is platform independent\n",
817 meta->name ? : "[no name]");
818 } else if (export && meta->export_detail_platform) {
819 err |= meta->export_detail_platform(verbose, controller_path);
820 } else
821 err |= meta->detail_platform(verbose, 0, controller_path);
822 }
823
824 return err;
825 }
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