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