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Detail: don't exit if ioctl has been successful
[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
84 if (fd < 0) {
85 pr_err("cannot open %s: %s\n",
86 dev, strerror(errno));
87 return rv;
88 }
89 sra = sysfs_read(fd, NULL, GET_VERSION | GET_DEVS | GET_ARRAY_STATE);
90 if (!sra) {
91 if (md_get_array_info(fd, &array)) {
92 pr_err("%s does not appear to be an md device\n", dev);
93 close(fd);
94 return rv;
95 }
96 }
97 external = (sra != NULL && sra->array.major_version == -1 &&
98 sra->array.minor_version == -2);
99 inactive = (sra->array_state == ARRAY_ACTIVE ||
100 sra->array_state == ARRAY_CLEAR);
101 st = super_by_fd(fd, &subarray);
102 if (md_get_array_info(fd, &array)) {
103 if (errno == ENODEV) {
104 if (sra->array.major_version == -1 &&
105 sra->array.minor_version == -1 &&
106 sra->devs == NULL) {
107 pr_err("Array associated with md device %s does not exist.\n",
108 dev);
109 close(fd);
110 sysfs_free(sra);
111 return rv;
112 }
113 array = sra->array;
114 } else {
115 pr_err("cannot get array detail for %s: %s\n",
116 dev, strerror(errno));
117 close(fd);
118 return rv;
119 }
120 }
121
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 str = map_num(pers, array.level);
224
225 if (c->export) {
226 if (array.raid_disks) {
227 if (str)
228 printf("MD_LEVEL=%s\n", str);
229 printf("MD_DEVICES=%d\n", array.raid_disks);
230 } else {
231 if (!inactive)
232 printf("MD_LEVEL=container\n");
233 printf("MD_DEVICES=%d\n", array.nr_disks);
234 }
235 if (container) {
236 printf("MD_CONTAINER=%s\n", container);
237 printf("MD_MEMBER=%s\n", member);
238 } else {
239 if (sra && sra->array.major_version < 0)
240 printf("MD_METADATA=%s\n", sra->text_version);
241 else
242 printf("MD_METADATA=%d.%d\n",
243 array.major_version,
244 array.minor_version);
245 }
246
247 if (st && st->sb && info) {
248 char nbuf[64];
249 struct map_ent *mp, *map = NULL;
250
251 fname_from_uuid(st, info, nbuf, ':');
252 printf("MD_UUID=%s\n", nbuf + 5);
253 mp = map_by_uuid(&map, info->uuid);
254 if (mp && mp->path &&
255 strncmp(mp->path, "/dev/md/", 8) == 0) {
256 printf("MD_DEVNAME=");
257 print_escape(mp->path + 8);
258 putchar('\n');
259 }
260
261 if (st->ss->export_detail_super)
262 st->ss->export_detail_super(st);
263 } else {
264 struct map_ent *mp, *map = NULL;
265 char nbuf[64];
266 mp = map_by_devnm(&map, fd2devnm(fd));
267 if (mp) {
268 __fname_from_uuid(mp->uuid, 0, nbuf, ':');
269 printf("MD_UUID=%s\n", nbuf+5);
270 }
271 if (mp && mp->path &&
272 strncmp(mp->path, "/dev/md/", 8) == 0) {
273 printf("MD_DEVNAME=");
274 print_escape(mp->path+8);
275 putchar('\n');
276 }
277 }
278 if (sra) {
279 struct mdinfo *mdi;
280 for (mdi = sra->devs; mdi; mdi = mdi->next) {
281 char *path;
282 char *sysdev = xstrdup(mdi->sys_name + 1);
283 char *cp;
284
285 path = map_dev(mdi->disk.major,
286 mdi->disk.minor, 0);
287 for (cp = sysdev; *cp; cp++)
288 if (!isalnum(*cp))
289 *cp = '_';
290
291 if (mdi->disk.raid_disk >= 0)
292 printf("MD_DEVICE_%s_ROLE=%d\n",
293 sysdev,
294 mdi->disk.raid_disk);
295 else
296 printf("MD_DEVICE_%s_ROLE=spare\n",
297 sysdev);
298 if (path)
299 printf("MD_DEVICE_%s_DEV=%s\n",
300 sysdev, path);
301 }
302 }
303 goto out;
304 }
305
306 disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
307 for (d = 0; d < max_disks * 2; d++) {
308 disks[d].state = (1 << MD_DISK_REMOVED);
309 disks[d].major = disks[d].minor = 0;
310 disks[d].number = -1;
311 disks[d].raid_disk = d / 2;
312 }
313
314 next = array.raid_disks * 2;
315 if (inactive) {
316 struct mdinfo *mdi;
317 if (sra != NULL)
318 for (mdi = sra->devs; mdi; mdi = mdi->next) {
319 disks[next++] = mdi->disk;
320 disks[next - 1].number = -1;
321 }
322 } else for (d = 0; d < max_disks; d++) {
323 mdu_disk_info_t disk;
324 disk.number = d;
325 if (md_get_disk_info(fd, &disk) < 0) {
326 if (d < array.raid_disks)
327 pr_err("cannot get device detail for device %d: %s\n",
328 d, strerror(errno));
329 continue;
330 }
331 if (disk.major == 0 && disk.minor == 0)
332 continue;
333 if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks &&
334 disks[disk.raid_disk * 2].state == (1 << MD_DISK_REMOVED) &&
335 ((disk.state & (1 << MD_DISK_JOURNAL)) == 0))
336 disks[disk.raid_disk * 2] = disk;
337 else if (disk.raid_disk >= 0 &&
338 disk.raid_disk < array.raid_disks &&
339 disks[disk.raid_disk * 2 + 1].state ==
340 (1 << MD_DISK_REMOVED) &&
341 !(disk.state & (1 << MD_DISK_JOURNAL)))
342 disks[disk.raid_disk * 2 + 1] = disk;
343 else if (next < max_disks * 2)
344 disks[next++] = disk;
345 }
346
347 avail = xcalloc(array.raid_disks, 1);
348
349 for (d = 0; d < array.raid_disks; d++) {
350
351 if ((disks[d*2].state & (1<<MD_DISK_SYNC)) ||
352 (disks[d*2+1].state & (1<<MD_DISK_SYNC))) {
353 avail_disks ++;
354 avail[d] = 1;
355 } else
356 rv |= !! c->test;
357 }
358
359 if (c->brief) {
360 mdu_bitmap_file_t bmf;
361 printf("%sARRAY %s", inactive ? "INACTIVE-":"", dev);
362 if (c->verbose > 0) {
363 if (array.raid_disks)
364 printf(" level=%s num-devices=%d",
365 str ? str : "-unknown-",
366 array.raid_disks);
367 else if (!inactive)
368 printf(" level=container num-devices=%d",
369 array.nr_disks);
370 else
371 printf(" num-devices=%d", array.nr_disks);
372 }
373 if (container) {
374 printf(" container=%s", container);
375 printf(" member=%s", member);
376 } else {
377 if (sra && sra->array.major_version < 0)
378 printf(" metadata=%s", sra->text_version);
379 else
380 printf(" metadata=%d.%d", array.major_version,
381 array.minor_version);
382 }
383
384 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
385 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
386 printf(" bitmap=%s", bmf.pathname);
387 }
388 } else {
389 mdu_bitmap_file_t bmf;
390 unsigned long long larray_size;
391 struct mdstat_ent *ms = mdstat_read(0, 0);
392 struct mdstat_ent *e;
393 char *devnm;
394
395 devnm = stat2devnm(&stb);
396 for (e = ms; e; e = e->next)
397 if (strcmp(e->devnm, devnm) == 0)
398 break;
399 if (!get_dev_size(fd, NULL, &larray_size))
400 larray_size = 0;
401
402 printf("%s:\n", dev);
403
404 if (container)
405 printf(" Container : %s, member %s\n",
406 container, member);
407 else {
408 if (sra && sra->array.major_version < 0)
409 printf(" Version : %s\n",
410 sra->text_version);
411 else
412 printf(" Version : %d.%d\n",
413 array.major_version,
414 array.minor_version);
415 }
416
417 atime = array.ctime;
418 if (atime)
419 printf(" Creation Time : %.24s\n", ctime(&atime));
420 if (array.raid_disks == 0 && external)
421 str = "container";
422 if (str)
423 printf(" Raid Level : %s\n", str);
424 if (larray_size)
425 printf(" Array Size : %llu%s\n",
426 (larray_size >> 10),
427 human_size(larray_size));
428 if (array.level >= 1) {
429 if (sra)
430 array.major_version = sra->array.major_version;
431 if (array.major_version != 0 &&
432 (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
433 unsigned long long dsize;
434
435 dsize = get_component_size(fd);
436 if (dsize > 0)
437 printf(" Used Dev Size : %llu%s\n",
438 dsize/2,
439 human_size((long long)dsize<<9));
440 else
441 printf(" Used Dev Size : unknown\n");
442 } else
443 printf(" Used Dev Size : %lu%s\n",
444 (unsigned long)array.size,
445 human_size((unsigned long long)
446 array.size << 10));
447 }
448 if (array.raid_disks)
449 printf(" Raid Devices : %d\n", array.raid_disks);
450 printf(" Total Devices : %d\n", array.nr_disks);
451 if (!container &&
452 ((sra == NULL && array.major_version == 0) ||
453 (sra && sra->array.major_version == 0)))
454 printf(" Preferred Minor : %d\n", array.md_minor);
455 if (sra == NULL || sra->array.major_version >= 0)
456 printf(" Persistence : Superblock is %spersistent\n",
457 array.not_persistent ? "not " : "");
458 printf("\n");
459 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
460 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
461 printf(" Intent Bitmap : %s\n", bmf.pathname);
462 printf("\n");
463 } else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
464 printf(" Intent Bitmap : Internal\n\n");
465 atime = array.utime;
466 if (atime)
467 printf(" Update Time : %.24s\n", ctime(&atime));
468 if (array.raid_disks) {
469 static char *sync_action[] = {
470 ", recovering", ", resyncing",
471 ", reshaping", ", checking" };
472 char *st;
473 if (avail_disks == array.raid_disks)
474 st = "";
475 else if (!enough(array.level, array.raid_disks,
476 array.layout, 1, avail))
477 st = ", FAILED";
478 else
479 st = ", degraded";
480
481 printf(" State : %s%s%s%s%s%s \n",
482 (array.state & (1 << MD_SB_CLEAN)) ?
483 "clean" : "active", st,
484 (!e || (e->percent < 0 &&
485 e->percent != RESYNC_PENDING &&
486 e->percent != RESYNC_DELAYED)) ?
487 "" : sync_action[e->resync],
488 larray_size ? "": ", Not Started",
489 (e && e->percent == RESYNC_DELAYED) ?
490 " (DELAYED)": "",
491 (e && e->percent == RESYNC_PENDING) ?
492 " (PENDING)": "");
493 } else if (inactive) {
494 printf(" State : inactive\n");
495 }
496 if (array.raid_disks)
497 printf(" Active Devices : %d\n", array.active_disks);
498 if (array.working_disks > 0)
499 printf(" Working Devices : %d\n",
500 array.working_disks);
501 if (array.raid_disks) {
502 printf(" Failed Devices : %d\n", array.failed_disks);
503 printf(" Spare Devices : %d\n", array.spare_disks);
504 }
505 printf("\n");
506 if (array.level == 5) {
507 str = map_num(r5layout, array.layout);
508 printf(" Layout : %s\n",
509 str ? str : "-unknown-");
510 }
511 if (array.level == 6) {
512 str = map_num(r6layout, array.layout);
513 printf(" Layout : %s\n",
514 str ? str : "-unknown-");
515 }
516 if (array.level == 10) {
517 printf(" Layout :");
518 print_r10_layout(array.layout);
519 printf("\n");
520 }
521 switch (array.level) {
522 case 0:
523 case 4:
524 case 5:
525 case 10:
526 case 6:
527 if (array.chunk_size)
528 printf(" Chunk Size : %dK\n\n",
529 array.chunk_size/1024);
530 break;
531 case -1:
532 printf(" Rounding : %dK\n\n",
533 array.chunk_size/1024);
534 break;
535 default:
536 break;
537 }
538
539 if (array.raid_disks) {
540 struct mdinfo *mdi;
541
542 mdi = sysfs_read(fd, NULL, GET_CONSISTENCY_POLICY);
543 if (mdi) {
544 char *policy = map_num(consistency_policies,
545 mdi->consistency_policy);
546 sysfs_free(mdi);
547 if (policy)
548 printf("Consistency Policy : %s\n\n",
549 policy);
550 }
551 }
552
553 if (e && e->percent >= 0) {
554 static char *sync_action[] = {
555 "Rebuild", "Resync", "Reshape", "Check"};
556 printf(" %7s Status : %d%% complete\n",
557 sync_action[e->resync], e->percent);
558 }
559 free_mdstat(ms);
560
561 if ((st && st->sb) && (info && info->reshape_active)) {
562 #if 0
563 This is pretty boring
564 printf(" Reshape pos'n : %llu%s\n",
565 (unsigned long long) info->reshape_progress << 9,
566 human_size((unsigned long long)
567 info->reshape_progress << 9));
568 #endif
569 if (info->delta_disks != 0)
570 printf(" Delta Devices : %d, (%d->%d)\n",
571 info->delta_disks,
572 array.raid_disks - info->delta_disks,
573 array.raid_disks);
574 if (info->new_level != array.level) {
575 str = map_num(pers, info->new_level);
576 printf(" New Level : %s\n",
577 str ? str : "-unknown-");
578 }
579 if (info->new_level != array.level ||
580 info->new_layout != array.layout) {
581 if (info->new_level == 5) {
582 str = map_num(r5layout,
583 info->new_layout);
584 printf(" New Layout : %s\n",
585 str ? str : "-unknown-");
586 }
587 if (info->new_level == 6) {
588 str = map_num(r6layout,
589 info->new_layout);
590 printf(" New Layout : %s\n",
591 str ? str : "-unknown-");
592 }
593 if (info->new_level == 10) {
594 printf(" New Layout : near=%d, %s=%d\n",
595 info->new_layout & 255,
596 (info->new_layout & 0x10000) ?
597 "offset" : "far",
598 (info->new_layout >> 8) & 255);
599 }
600 }
601 if (info->new_chunk != array.chunk_size)
602 printf(" New Chunksize : %dK\n",
603 info->new_chunk/1024);
604 printf("\n");
605 } else if (e && e->percent >= 0)
606 printf("\n");
607 if (st && st->sb)
608 st->ss->detail_super(st, c->homehost);
609
610 if (array.raid_disks == 0 && sra &&
611 sra->array.major_version == -1 &&
612 sra->array.minor_version == -2 &&
613 sra->text_version[0] != '/') {
614 /* This looks like a container. Find any active arrays
615 * That claim to be a member.
616 */
617 DIR *dir = opendir("/sys/block");
618 struct dirent *de;
619
620 printf(" Member Arrays :");
621
622 while (dir && (de = readdir(dir)) != NULL) {
623 char path[287];
624 char vbuf[1024];
625 int nlen = strlen(sra->sys_name);
626 dev_t devid;
627 if (de->d_name[0] == '.')
628 continue;
629 sprintf(path,
630 "/sys/block/%s/md/metadata_version",
631 de->d_name);
632 if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
633 continue;
634 if (strncmp(vbuf, "external:", 9) ||
635 !is_subarray(vbuf + 9) ||
636 strncmp(vbuf + 10, sra->sys_name, nlen) ||
637 vbuf[10 + nlen] != '/')
638 continue;
639 devid = devnm2devid(de->d_name);
640 printf(" %s",
641 map_dev_preferred(major(devid),
642 minor(devid), 1,
643 c->prefer));
644 }
645 if (dir)
646 closedir(dir);
647 printf("\n\n");
648 }
649
650 if (array.raid_disks)
651 printf(" Number Major Minor RaidDevice State\n");
652 else
653 printf(" Number Major Minor RaidDevice\n");
654 }
655 free(info);
656
657 for (d = 0; d < max_disks * 2; d++) {
658 char *dv;
659 mdu_disk_info_t disk = disks[d];
660
661 if (d >= array.raid_disks * 2 &&
662 disk.major == 0 && disk.minor == 0)
663 continue;
664 if ((d & 1) && disk.major == 0 && disk.minor == 0)
665 continue;
666 if (!c->brief) {
667 if (d == array.raid_disks*2)
668 printf("\n");
669 if (disk.number < 0 && disk.raid_disk < 0)
670 printf(" - %5d %5d - ",
671 disk.major, disk.minor);
672 else if (disk.raid_disk < 0 ||
673 disk.state & (1 << MD_DISK_JOURNAL))
674 printf(" %5d %5d %5d - ",
675 disk.number, disk.major, disk.minor);
676 else if (disk.number < 0)
677 printf(" - %5d %5d %5d ",
678 disk.major, disk.minor, disk.raid_disk);
679 else
680 printf(" %5d %5d %5d %5d ",
681 disk.number, disk.major, disk.minor,
682 disk.raid_disk);
683 }
684 if (!c->brief && array.raid_disks) {
685 if (disk.state & (1 << MD_DISK_FAULTY)) {
686 printf(" faulty");
687 if (disk.raid_disk < array.raid_disks &&
688 disk.raid_disk >= 0)
689 failed++;
690 }
691 if (disk.state & (1 << MD_DISK_ACTIVE))
692 printf(" active");
693 if (disk.state & (1 << MD_DISK_SYNC)) {
694 printf(" sync");
695 if (array.level == 10 &&
696 (array.layout & ~0x1FFFF) == 0) {
697 int nc = array.layout & 0xff;
698 int fc = (array.layout >> 8) & 0xff;
699 int copies = nc*fc;
700 if (fc == 1 &&
701 array.raid_disks % copies == 0 &&
702 copies <= 26) {
703 /* We can divide the devices
704 into 'sets' */
705 int set;
706 set = disk.raid_disk % copies;
707 printf(" set-%c", set + 'A');
708 }
709 }
710 }
711 if (disk.state & (1 << MD_DISK_REMOVED))
712 printf(" removed");
713 if (disk.state & (1 << MD_DISK_WRITEMOSTLY))
714 printf(" writemostly");
715 if (disk.state & (1 << MD_DISK_FAILFAST))
716 printf(" failfast");
717 if (disk.state & (1 << MD_DISK_JOURNAL))
718 printf(" journal");
719 if ((disk.state &
720 ((1 << MD_DISK_ACTIVE) | (1 << MD_DISK_SYNC) |
721 (1 << MD_DISK_REMOVED) | (1 << MD_DISK_FAULTY) |
722 (1 << MD_DISK_JOURNAL))) == 0) {
723 printf(" spare");
724 if (disk.raid_disk < array.raid_disks &&
725 disk.raid_disk >= 0)
726 printf(" rebuilding");
727 }
728 }
729 if (disk.state == 0)
730 spares++;
731 dv = map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
732 if (dv != NULL) {
733 if (c->brief)
734 n_devices = add_device(dv, &devices,
735 &max_devices, n_devices);
736 else
737 printf(" %s", dv);
738 }
739 if (!c->brief)
740 printf("\n");
741 }
742 if (spares && c->brief && array.raid_disks)
743 printf(" spares=%d", spares);
744 if (c->brief && st && st->sb)
745 st->ss->brief_detail_super(st);
746 if (st)
747 st->ss->free_super(st);
748
749 if (c->brief && c->verbose > 0 && devices) {
750 qsort(devices, n_devices, sizeof(*devices), cmpstringp);
751 printf("\n devices=%s", devices[0]);
752 for (d = 1; d < n_devices; d++)
753 printf(",%s", devices[d]);
754 }
755 if (c->brief)
756 printf("\n");
757 if (c->test &&
758 !enough(array.level, array.raid_disks, array.layout, 1, avail))
759 rv = 2;
760
761 free(disks);
762 out:
763 close(fd);
764 free(subarray);
765 free(avail);
766 for (d = 0; d < n_devices; d++)
767 free(devices[d]);
768 free(devices);
769 sysfs_free(sra);
770 return rv;
771 }
772
773 int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
774 {
775 /* display platform capabilities for the given metadata format
776 * 'scan' in this context means iterate over all metadata types
777 */
778 int i;
779 int err = 1;
780
781 if (ss && export && ss->export_detail_platform)
782 err = ss->export_detail_platform(verbose, controller_path);
783 else if (ss && ss->detail_platform)
784 err = ss->detail_platform(verbose, 0, controller_path);
785 else if (ss) {
786 if (verbose > 0)
787 pr_err("%s metadata is platform independent\n",
788 ss->name ? : "[no name]");
789 } else if (!scan) {
790 if (verbose > 0)
791 pr_err("specify a metadata type or --scan\n");
792 }
793
794 if (!scan)
795 return err;
796
797 err = 0;
798 for (i = 0; superlist[i]; i++) {
799 struct superswitch *meta = superlist[i];
800
801 if (meta == ss)
802 continue;
803 if (verbose > 0)
804 pr_err("checking metadata %s\n",
805 meta->name ? : "[no name]");
806 if (!meta->detail_platform) {
807 if (verbose > 0)
808 pr_err("%s metadata is platform independent\n",
809 meta->name ? : "[no name]");
810 } else if (export && meta->export_detail_platform) {
811 err |= meta->export_detail_platform(verbose, controller_path);
812 } else
813 err |= meta->detail_platform(verbose, 0, controller_path);
814 }
815
816 return err;
817 }
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