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mdadm: improve the dlm locking mechanism for clustered raid
[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 } 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/", 8) == 0) {
276 printf("MD_DEVNAME=");
277 print_escape(mp->path+8);
278 putchar('\n');
279 }
280 }
281 if (sra) {
282 struct mdinfo *mdi;
283 for (mdi = sra->devs; mdi; mdi = mdi->next) {
284 char *path;
285 char *sysdev = xstrdup(mdi->sys_name + 1);
286 char *cp;
287
288 path = map_dev(mdi->disk.major,
289 mdi->disk.minor, 0);
290 for (cp = sysdev; *cp; cp++)
291 if (!isalnum(*cp))
292 *cp = '_';
293
294 if (mdi->disk.raid_disk >= 0)
295 printf("MD_DEVICE_%s_ROLE=%d\n",
296 sysdev,
297 mdi->disk.raid_disk);
298 else
299 printf("MD_DEVICE_%s_ROLE=spare\n",
300 sysdev);
301 if (path)
302 printf("MD_DEVICE_%s_DEV=%s\n",
303 sysdev, path);
304 }
305 }
306 goto out;
307 }
308
309 disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
310 for (d = 0; d < max_disks * 2; d++) {
311 disks[d].state = (1 << MD_DISK_REMOVED);
312 disks[d].major = disks[d].minor = 0;
313 disks[d].number = -1;
314 disks[d].raid_disk = d / 2;
315 }
316
317 next = array.raid_disks * 2;
318 if (inactive) {
319 struct mdinfo *mdi;
320 for (mdi = sra->devs; mdi; mdi = mdi->next) {
321 disks[next++] = mdi->disk;
322 disks[next - 1].number = -1;
323 }
324 } else for (d = 0; d < max_disks; d++) {
325 mdu_disk_info_t disk;
326 disk.number = d;
327 if (md_get_disk_info(fd, &disk) < 0) {
328 if (d < array.raid_disks)
329 pr_err("cannot get device detail for device %d: %s\n",
330 d, strerror(errno));
331 continue;
332 }
333 if (disk.major == 0 && disk.minor == 0)
334 continue;
335 if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks &&
336 disks[disk.raid_disk * 2].state == (1 << MD_DISK_REMOVED) &&
337 ((disk.state & (1 << MD_DISK_JOURNAL)) == 0))
338 disks[disk.raid_disk * 2] = disk;
339 else if (disk.raid_disk >= 0 &&
340 disk.raid_disk < array.raid_disks &&
341 disks[disk.raid_disk * 2 + 1].state ==
342 (1 << MD_DISK_REMOVED) &&
343 !(disk.state & (1 << MD_DISK_JOURNAL)))
344 disks[disk.raid_disk * 2 + 1] = disk;
345 else if (next < max_disks * 2)
346 disks[next++] = disk;
347 }
348
349 avail = xcalloc(array.raid_disks, 1);
350
351 for (d = 0; d < array.raid_disks; d++) {
352
353 if ((disks[d*2].state & (1<<MD_DISK_SYNC)) ||
354 (disks[d*2+1].state & (1<<MD_DISK_SYNC))) {
355 avail_disks ++;
356 avail[d] = 1;
357 } else
358 rv |= !! c->test;
359 }
360
361 if (c->brief) {
362 mdu_bitmap_file_t bmf;
363 if (inactive && !is_container)
364 printf("INACTIVE-ARRAY %s", dev);
365 else
366 printf("ARRAY %s", dev);
367 if (c->verbose > 0) {
368 if (array.raid_disks)
369 printf(" level=%s num-devices=%d",
370 str ? str : "-unknown-",
371 array.raid_disks);
372 else if (is_container)
373 printf(" level=container num-devices=%d",
374 array.nr_disks);
375 else
376 printf(" num-devices=%d", array.nr_disks);
377 }
378 if (container) {
379 printf(" container=%s", container);
380 printf(" member=%s", member);
381 } else {
382 if (sra && sra->array.major_version < 0)
383 printf(" metadata=%s", sra->text_version);
384 else
385 printf(" metadata=%d.%d", array.major_version,
386 array.minor_version);
387 }
388
389 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
390 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
391 printf(" bitmap=%s", bmf.pathname);
392 }
393 } else {
394 mdu_bitmap_file_t bmf;
395 unsigned long long larray_size;
396 struct mdstat_ent *ms = mdstat_read(0, 0);
397 struct mdstat_ent *e;
398 char *devnm;
399
400 devnm = stat2devnm(&stb);
401 for (e = ms; e; e = e->next)
402 if (strcmp(e->devnm, devnm) == 0)
403 break;
404 if (!get_dev_size(fd, NULL, &larray_size))
405 larray_size = 0;
406
407 printf("%s:\n", dev);
408
409 if (container)
410 printf(" Container : %s, member %s\n",
411 container, member);
412 else {
413 if (sra && sra->array.major_version < 0)
414 printf(" Version : %s\n",
415 sra->text_version);
416 else
417 printf(" Version : %d.%d\n",
418 array.major_version,
419 array.minor_version);
420 }
421
422 atime = array.ctime;
423 if (atime)
424 printf(" Creation Time : %.24s\n", ctime(&atime));
425 if (is_container)
426 str = "container";
427 if (str)
428 printf(" Raid Level : %s\n", str);
429 if (larray_size)
430 printf(" Array Size : %llu%s\n",
431 (larray_size >> 10),
432 human_size(larray_size));
433 if (array.level >= 1) {
434 if (sra)
435 array.major_version = sra->array.major_version;
436 if (array.major_version != 0 &&
437 (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
438 unsigned long long dsize;
439
440 dsize = get_component_size(fd);
441 if (dsize > 0)
442 printf(" Used Dev Size : %llu%s\n",
443 dsize/2,
444 human_size((long long)dsize<<9));
445 else
446 printf(" Used Dev Size : unknown\n");
447 } else
448 printf(" Used Dev Size : %lu%s\n",
449 (unsigned long)array.size,
450 human_size((unsigned long long)
451 array.size << 10));
452 }
453 if (array.raid_disks)
454 printf(" Raid Devices : %d\n", array.raid_disks);
455 printf(" Total Devices : %d\n", array.nr_disks);
456 if (!container &&
457 ((sra == NULL && array.major_version == 0) ||
458 (sra && sra->array.major_version == 0)))
459 printf(" Preferred Minor : %d\n", array.md_minor);
460 if (sra == NULL || sra->array.major_version >= 0)
461 printf(" Persistence : Superblock is %spersistent\n",
462 array.not_persistent ? "not " : "");
463 printf("\n");
464 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
465 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
466 printf(" Intent Bitmap : %s\n", bmf.pathname);
467 printf("\n");
468 } else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
469 printf(" Intent Bitmap : Internal\n\n");
470 atime = array.utime;
471 if (atime)
472 printf(" Update Time : %.24s\n", ctime(&atime));
473 if (array.raid_disks) {
474 static char *sync_action[] = {
475 ", recovering", ", resyncing",
476 ", reshaping", ", checking" };
477 char *st;
478 if (avail_disks == array.raid_disks)
479 st = "";
480 else if (!enough(array.level, array.raid_disks,
481 array.layout, 1, avail))
482 st = ", FAILED";
483 else
484 st = ", degraded";
485
486 printf(" State : %s%s%s%s%s%s \n",
487 (array.state & (1 << MD_SB_CLEAN)) ?
488 "clean" : "active", st,
489 (!e || (e->percent < 0 &&
490 e->percent != RESYNC_PENDING &&
491 e->percent != RESYNC_DELAYED)) ?
492 "" : sync_action[e->resync],
493 larray_size ? "": ", Not Started",
494 (e && e->percent == RESYNC_DELAYED) ?
495 " (DELAYED)": "",
496 (e && e->percent == RESYNC_PENDING) ?
497 " (PENDING)": "");
498 } else if (inactive && !is_container) {
499 printf(" State : inactive\n");
500 }
501 if (array.raid_disks)
502 printf(" Active Devices : %d\n", array.active_disks);
503 if (array.working_disks > 0)
504 printf(" Working Devices : %d\n",
505 array.working_disks);
506 if (array.raid_disks) {
507 printf(" Failed Devices : %d\n", array.failed_disks);
508 printf(" Spare Devices : %d\n", array.spare_disks);
509 }
510 printf("\n");
511 if (array.level == 5) {
512 str = map_num(r5layout, array.layout);
513 printf(" Layout : %s\n",
514 str ? str : "-unknown-");
515 }
516 if (array.level == 6) {
517 str = map_num(r6layout, array.layout);
518 printf(" Layout : %s\n",
519 str ? str : "-unknown-");
520 }
521 if (array.level == 10) {
522 printf(" Layout :");
523 print_r10_layout(array.layout);
524 printf("\n");
525 }
526 switch (array.level) {
527 case 0:
528 case 4:
529 case 5:
530 case 10:
531 case 6:
532 if (array.chunk_size)
533 printf(" Chunk Size : %dK\n\n",
534 array.chunk_size/1024);
535 break;
536 case -1:
537 printf(" Rounding : %dK\n\n",
538 array.chunk_size/1024);
539 break;
540 default:
541 break;
542 }
543
544 if (array.raid_disks) {
545 struct mdinfo *mdi;
546
547 mdi = sysfs_read(fd, NULL, GET_CONSISTENCY_POLICY);
548 if (mdi) {
549 char *policy = map_num(consistency_policies,
550 mdi->consistency_policy);
551 sysfs_free(mdi);
552 if (policy)
553 printf("Consistency Policy : %s\n\n",
554 policy);
555 }
556 }
557
558 if (e && e->percent >= 0) {
559 static char *sync_action[] = {
560 "Rebuild", "Resync", "Reshape", "Check"};
561 printf(" %7s Status : %d%% complete\n",
562 sync_action[e->resync], e->percent);
563 }
564 free_mdstat(ms);
565
566 if ((st && st->sb) && (info && info->reshape_active)) {
567 #if 0
568 This is pretty boring
569 printf(" Reshape pos'n : %llu%s\n",
570 (unsigned long long) info->reshape_progress << 9,
571 human_size((unsigned long long)
572 info->reshape_progress << 9));
573 #endif
574 if (info->delta_disks != 0)
575 printf(" Delta Devices : %d, (%d->%d)\n",
576 info->delta_disks,
577 array.raid_disks - info->delta_disks,
578 array.raid_disks);
579 if (info->new_level != array.level) {
580 str = map_num(pers, info->new_level);
581 printf(" New Level : %s\n",
582 str ? str : "-unknown-");
583 }
584 if (info->new_level != array.level ||
585 info->new_layout != array.layout) {
586 if (info->new_level == 5) {
587 str = map_num(r5layout,
588 info->new_layout);
589 printf(" New Layout : %s\n",
590 str ? str : "-unknown-");
591 }
592 if (info->new_level == 6) {
593 str = map_num(r6layout,
594 info->new_layout);
595 printf(" New Layout : %s\n",
596 str ? str : "-unknown-");
597 }
598 if (info->new_level == 10) {
599 printf(" New Layout : near=%d, %s=%d\n",
600 info->new_layout & 255,
601 (info->new_layout & 0x10000) ?
602 "offset" : "far",
603 (info->new_layout >> 8) & 255);
604 }
605 }
606 if (info->new_chunk != array.chunk_size)
607 printf(" New Chunksize : %dK\n",
608 info->new_chunk/1024);
609 printf("\n");
610 } else if (e && e->percent >= 0)
611 printf("\n");
612 if (st && st->sb)
613 st->ss->detail_super(st, c->homehost);
614
615 if (array.raid_disks == 0 && sra &&
616 sra->array.major_version == -1 &&
617 sra->array.minor_version == -2 &&
618 sra->text_version[0] != '/') {
619 /* This looks like a container. Find any active arrays
620 * That claim to be a member.
621 */
622 DIR *dir = opendir("/sys/block");
623 struct dirent *de;
624
625 printf(" Member Arrays :");
626
627 while (dir && (de = readdir(dir)) != NULL) {
628 char path[287];
629 char vbuf[1024];
630 int nlen = strlen(sra->sys_name);
631 dev_t devid;
632 if (de->d_name[0] == '.')
633 continue;
634 sprintf(path,
635 "/sys/block/%s/md/metadata_version",
636 de->d_name);
637 if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
638 continue;
639 if (strncmp(vbuf, "external:", 9) ||
640 !is_subarray(vbuf + 9) ||
641 strncmp(vbuf + 10, sra->sys_name, nlen) ||
642 vbuf[10 + nlen] != '/')
643 continue;
644 devid = devnm2devid(de->d_name);
645 printf(" %s",
646 map_dev_preferred(major(devid),
647 minor(devid), 1,
648 c->prefer));
649 }
650 if (dir)
651 closedir(dir);
652 printf("\n\n");
653 }
654
655 if (array.raid_disks)
656 printf(" Number Major Minor RaidDevice State\n");
657 else
658 printf(" Number Major Minor RaidDevice\n");
659 }
660 free(info);
661
662 for (d = 0; d < max_disks * 2; d++) {
663 char *dv;
664 mdu_disk_info_t disk = disks[d];
665
666 if (d >= array.raid_disks * 2 &&
667 disk.major == 0 && disk.minor == 0)
668 continue;
669 if ((d & 1) && disk.major == 0 && disk.minor == 0)
670 continue;
671 if (!c->brief) {
672 if (d == array.raid_disks*2)
673 printf("\n");
674 if (disk.number < 0 && disk.raid_disk < 0)
675 printf(" - %5d %5d - ",
676 disk.major, disk.minor);
677 else if (disk.raid_disk < 0 ||
678 disk.state & (1 << MD_DISK_JOURNAL))
679 printf(" %5d %5d %5d - ",
680 disk.number, disk.major, disk.minor);
681 else if (disk.number < 0)
682 printf(" - %5d %5d %5d ",
683 disk.major, disk.minor, disk.raid_disk);
684 else
685 printf(" %5d %5d %5d %5d ",
686 disk.number, disk.major, disk.minor,
687 disk.raid_disk);
688 }
689 if (!c->brief && array.raid_disks) {
690 if (disk.state & (1 << MD_DISK_FAULTY)) {
691 printf(" faulty");
692 if (disk.raid_disk < array.raid_disks &&
693 disk.raid_disk >= 0)
694 failed++;
695 }
696 if (disk.state & (1 << MD_DISK_ACTIVE))
697 printf(" active");
698 if (disk.state & (1 << MD_DISK_SYNC)) {
699 printf(" sync");
700 if (array.level == 10 &&
701 (array.layout & ~0x1FFFF) == 0) {
702 int nc = array.layout & 0xff;
703 int fc = (array.layout >> 8) & 0xff;
704 int copies = nc*fc;
705 if (fc == 1 &&
706 array.raid_disks % copies == 0 &&
707 copies <= 26) {
708 /* We can divide the devices
709 into 'sets' */
710 int set;
711 set = disk.raid_disk % copies;
712 printf(" set-%c", set + 'A');
713 }
714 }
715 }
716 if (disk.state & (1 << MD_DISK_REMOVED))
717 printf(" removed");
718 if (disk.state & (1 << MD_DISK_WRITEMOSTLY))
719 printf(" writemostly");
720 if (disk.state & (1 << MD_DISK_FAILFAST))
721 printf(" failfast");
722 if (disk.state & (1 << MD_DISK_JOURNAL))
723 printf(" journal");
724 if ((disk.state &
725 ((1 << MD_DISK_ACTIVE) | (1 << MD_DISK_SYNC) |
726 (1 << MD_DISK_REMOVED) | (1 << MD_DISK_FAULTY) |
727 (1 << MD_DISK_JOURNAL))) == 0) {
728 printf(" spare");
729 if (disk.raid_disk < array.raid_disks &&
730 disk.raid_disk >= 0)
731 printf(" rebuilding");
732 }
733 }
734 if (disk.state == 0)
735 spares++;
736 dv = map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
737 if (dv != NULL) {
738 if (c->brief)
739 n_devices = add_device(dv, &devices,
740 &max_devices, n_devices);
741 else
742 printf(" %s", dv);
743 }
744 if (!c->brief)
745 printf("\n");
746 }
747 if (spares && c->brief && array.raid_disks)
748 printf(" spares=%d", spares);
749 if (c->brief && st && st->sb)
750 st->ss->brief_detail_super(st);
751 if (st)
752 st->ss->free_super(st);
753
754 if (c->brief && c->verbose > 0 && devices) {
755 qsort(devices, n_devices, sizeof(*devices), cmpstringp);
756 printf("\n devices=%s", devices[0]);
757 for (d = 1; d < n_devices; d++)
758 printf(",%s", devices[d]);
759 }
760 if (c->brief)
761 printf("\n");
762 if (c->test &&
763 !enough(array.level, array.raid_disks, array.layout, 1, avail))
764 rv = 2;
765
766 free(disks);
767 out:
768 close(fd);
769 free(subarray);
770 free(avail);
771 for (d = 0; d < n_devices; d++)
772 free(devices[d]);
773 free(devices);
774 sysfs_free(sra);
775 return rv;
776 }
777
778 int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
779 {
780 /* display platform capabilities for the given metadata format
781 * 'scan' in this context means iterate over all metadata types
782 */
783 int i;
784 int err = 1;
785
786 if (ss && export && ss->export_detail_platform)
787 err = ss->export_detail_platform(verbose, controller_path);
788 else if (ss && ss->detail_platform)
789 err = ss->detail_platform(verbose, 0, controller_path);
790 else if (ss) {
791 if (verbose > 0)
792 pr_err("%s metadata is platform independent\n",
793 ss->name ? : "[no name]");
794 } else if (!scan) {
795 if (verbose > 0)
796 pr_err("specify a metadata type or --scan\n");
797 }
798
799 if (!scan)
800 return err;
801
802 err = 0;
803 for (i = 0; superlist[i]; i++) {
804 struct superswitch *meta = superlist[i];
805
806 if (meta == ss)
807 continue;
808 if (verbose > 0)
809 pr_err("checking metadata %s\n",
810 meta->name ? : "[no name]");
811 if (!meta->detail_platform) {
812 if (verbose > 0)
813 pr_err("%s metadata is platform independent\n",
814 meta->name ? : "[no name]");
815 } else if (export && meta->export_detail_platform) {
816 err |= meta->export_detail_platform(verbose, controller_path);
817 } else
818 err |= meta->detail_platform(verbose, 0, controller_path);
819 }
820
821 return err;
822 }
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