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-rw-r--r--Detail.c768
1 files changed, 768 insertions, 0 deletions
diff --git a/Detail.c b/Detail.c
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+++ b/Detail.c
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+/*
+ * mdadm - manage Linux "md" devices aka RAID arrays.
+ *
+ * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Neil Brown
+ * Email: <neilb@suse.de>
+ */
+
+#include "mdadm.h"
+#include "md_p.h"
+#include "md_u.h"
+#include <dirent.h>
+
+static int cmpstringp(const void *p1, const void *p2)
+{
+ return strcmp(* (char * const *) p1, * (char * const *) p2);
+}
+
+static int add_device(const char *dev, char ***p_devices,
+ int *p_max_devices, int n_devices)
+{
+ if (n_devices + 1 >= *p_max_devices) {
+ *p_max_devices += 16;
+ *p_devices = xrealloc(*p_devices, *p_max_devices *
+ sizeof(**p_devices));
+ if (!*p_devices) {
+ *p_max_devices = 0;
+ return 0;
+ }
+ };
+ (*p_devices)[n_devices] = xstrdup(dev);
+ return n_devices + 1;
+}
+
+int Detail(char *dev, struct context *c)
+{
+ /*
+ * Print out details for an md array by using
+ * GET_ARRAY_INFO and GET_DISK_INFO ioctl calls
+ */
+
+ int fd = open(dev, O_RDONLY);
+ int vers;
+ mdu_array_info_t array;
+ mdu_disk_info_t *disks;
+ int next;
+ int d;
+ time_t atime;
+ char *str;
+ char **devices = NULL;
+ int max_devices = 0, n_devices = 0;
+ int spares = 0;
+ struct stat stb;
+ int is_26 = get_linux_version() >= 2006000;
+ int is_rebuilding = 0;
+ int failed = 0;
+ struct supertype *st;
+ char *subarray = NULL;
+ int max_disks = MD_SB_DISKS; /* just a default */
+ struct mdinfo *info = NULL;
+ struct mdinfo *sra;
+ struct mdinfo *subdev;
+ char *member = NULL;
+ char *container = NULL;
+
+ int rv = c->test ? 4 : 1;
+ int avail_disks = 0;
+ char *avail = NULL;
+ int external;
+ int inactive;
+
+ if (fd < 0) {
+ pr_err("cannot open %s: %s\n",
+ dev, strerror(errno));
+ return rv;
+ }
+ vers = md_get_version(fd);
+ if (vers < 0) {
+ pr_err("%s does not appear to be an md device\n",
+ dev);
+ close(fd);
+ return rv;
+ }
+ if (vers < 9000) {
+ pr_err("cannot get detail for md device %s: driver version too old.\n",
+ dev);
+ close(fd);
+ return rv;
+ }
+ sra = sysfs_read(fd, NULL, GET_VERSION|GET_DEVS);
+ external = (sra != NULL && sra->array.major_version == -1
+ && sra->array.minor_version == -2);
+ st = super_by_fd(fd, &subarray);
+ if (ioctl(fd, GET_ARRAY_INFO, &array) == 0) {
+ inactive = 0;
+ } else if (errno == ENODEV && sra) {
+ array = sra->array;
+ inactive = 1;
+ } else {
+ pr_err("cannot get array detail for %s: %s\n",
+ dev, strerror(errno));
+ close(fd);
+ return rv;
+ }
+
+ if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
+ stb.st_rdev = 0;
+ rv = 0;
+
+ if (st)
+ max_disks = st->max_devs;
+
+ if (subarray) {
+ /* This is a subarray of some container.
+ * We want the name of the container, and the member
+ */
+ int devid = devnm2devid(st->container_devnm);
+ int cfd, err;
+
+ member = subarray;
+ container = map_dev_preferred(major(devid), minor(devid),
+ 1, c->prefer);
+ cfd = open_dev(st->container_devnm);
+ if (cfd >= 0) {
+ err = st->ss->load_container(st, cfd, NULL);
+ close(cfd);
+ if (err == 0)
+ info = st->ss->container_content(st, subarray);
+ }
+ }
+
+ /* try to load a superblock. Try sra->devs first, then try ioctl */
+ if (st && !info) for (d = 0, subdev = sra ? sra->devs : NULL;
+ d < max_disks || subdev;
+ subdev ? (void)(subdev = subdev->next) : (void)(d++)){
+ mdu_disk_info_t disk;
+ char *dv;
+ int fd2;
+ int err;
+ if (subdev)
+ disk = subdev->disk;
+ else {
+ disk.number = d;
+ if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
+ continue;
+ if (d >= array.raid_disks &&
+ disk.major == 0 &&
+ disk.minor == 0)
+ continue;
+ }
+
+ if (array.raid_disks > 0 &&
+ (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
+ continue;
+
+ dv = map_dev(disk.major, disk.minor, 1);
+ if (!dv)
+ continue;
+
+ fd2 = dev_open(dv, O_RDONLY);
+ if (fd2 < 0)
+ continue;
+
+ if (st->sb)
+ st->ss->free_super(st);
+
+ err = st->ss->load_super(st, fd2, NULL);
+ close(fd2);
+ if (err)
+ continue;
+ if (info)
+ free(info);
+ if (subarray)
+ info = st->ss->container_content(st, subarray);
+ else {
+ info = xmalloc(sizeof(*info));
+ st->ss->getinfo_super(st, info, NULL);
+ }
+ if (!info)
+ continue;
+
+ if (array.raid_disks != 0 && /* container */
+ (info->array.ctime != array.ctime ||
+ info->array.level != array.level)) {
+ st->ss->free_super(st);
+ continue;
+ }
+ /* some formats (imsm) have free-floating-spares
+ * with a uuid of uuid_zero, they don't
+ * have very good info about the rest of the
+ * container, so keep searching when
+ * encountering such a device. Otherwise, stop
+ * after the first successful call to
+ * ->load_super.
+ */
+ if (memcmp(uuid_zero,
+ info->uuid,
+ sizeof(uuid_zero)) == 0) {
+ st->ss->free_super(st);
+ continue;
+ }
+ break;
+ }
+
+ /* Ok, we have some info to print... */
+ str = map_num(pers, array.level);
+
+ if (c->export) {
+ if (array.raid_disks) {
+ if (str)
+ printf("MD_LEVEL=%s\n", str);
+ printf("MD_DEVICES=%d\n", array.raid_disks);
+ } else {
+ if (!inactive)
+ printf("MD_LEVEL=container\n");
+ printf("MD_DEVICES=%d\n", array.nr_disks);
+ }
+ if (container) {
+ printf("MD_CONTAINER=%s\n", container);
+ printf("MD_MEMBER=%s\n", member);
+ } else {
+ if (sra && sra->array.major_version < 0)
+ printf("MD_METADATA=%s\n", sra->text_version);
+ else
+ printf("MD_METADATA=%d.%d\n",
+ array.major_version, array.minor_version);
+ }
+
+ if (st && st->sb && info) {
+ char nbuf[64];
+ struct map_ent *mp, *map = NULL;
+
+ fname_from_uuid(st, info, nbuf, ':');
+ printf("MD_UUID=%s\n", nbuf+5);
+ mp = map_by_uuid(&map, info->uuid);
+ if (mp && mp->path &&
+ strncmp(mp->path, "/dev/md/", 8) == 0) {
+ printf("MD_DEVNAME=");
+ print_escape(mp->path+8);
+ putchar('\n');
+ }
+
+ if (st->ss->export_detail_super)
+ st->ss->export_detail_super(st);
+ } else {
+ struct map_ent *mp, *map = NULL;
+ char nbuf[64];
+ mp = map_by_devnm(&map, fd2devnm(fd));
+ if (mp) {
+ __fname_from_uuid(mp->uuid, 0, nbuf, ':');
+ printf("MD_UUID=%s\n", nbuf+5);
+ }
+ if (mp && mp->path &&
+ strncmp(mp->path, "/dev/md/", 8) == 0) {
+ printf("MD_DEVNAME=");
+ print_escape(mp->path+8);
+ putchar('\n');
+ }
+ }
+ if (sra) {
+ struct mdinfo *mdi;
+ for (mdi = sra->devs; mdi; mdi = mdi->next) {
+ char *path =
+ map_dev(mdi->disk.major,
+ mdi->disk.minor, 0);
+
+ if (mdi->disk.raid_disk >= 0)
+ printf("MD_DEVICE_%s_ROLE=%d\n",
+ mdi->sys_name+4,
+ mdi->disk.raid_disk);
+ else
+ printf("MD_DEVICE_%s_ROLE=spare\n",
+ mdi->sys_name+4);
+ if (path)
+ printf("MD_DEVICE_%s_DEV=%s\n",
+ mdi->sys_name+4, path);
+ }
+ }
+ goto out;
+ }
+
+ disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
+ for (d = 0; d < max_disks * 2; d++) {
+ disks[d].state = (1<<MD_DISK_REMOVED);
+ disks[d].major = disks[d].minor = 0;
+ disks[d].number = -1;
+ disks[d].raid_disk = d/2;
+ }
+
+ next = array.raid_disks*2;
+ if (inactive) {
+ struct mdinfo *mdi;
+ if (sra != NULL)
+ for (mdi = sra->devs; mdi; mdi = mdi->next) {
+ disks[next++] = mdi->disk;
+ disks[next-1].number = -1;
+ }
+ } else for (d = 0; d < max_disks; d++) {
+ mdu_disk_info_t disk;
+ disk.number = d;
+ if (ioctl(fd, GET_DISK_INFO, &disk) < 0) {
+ if (d < array.raid_disks)
+ pr_err("cannot get device detail for device %d: %s\n",
+ d, strerror(errno));
+ continue;
+ }
+ if (disk.major == 0 && disk.minor == 0)
+ continue;
+ if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks
+ && disks[disk.raid_disk*2].state == (1<<MD_DISK_REMOVED))
+ disks[disk.raid_disk*2] = disk;
+ else if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks
+ && disks[disk.raid_disk*2+1].state == (1<<MD_DISK_REMOVED)
+ && !(disk.state & (1<<MD_DISK_JOURNAL)))
+ disks[disk.raid_disk*2+1] = disk;
+ else if (next < max_disks*2)
+ disks[next++] = disk;
+ }
+
+ avail = xcalloc(array.raid_disks, 1);
+
+ for (d= 0; d < array.raid_disks; d++) {
+
+ if ((disks[d*2].state & (1<<MD_DISK_SYNC)) ||
+ (disks[d*2+1].state & (1<<MD_DISK_SYNC))) {
+ avail_disks ++;
+ avail[d] = 1;
+ } else
+ rv |= !! c->test;
+ }
+
+ if (c->brief) {
+ mdu_bitmap_file_t bmf;
+ printf("%sARRAY %s", inactive ? "INACTIVE-":"", dev);
+ if (c->verbose > 0) {
+ if (array.raid_disks)
+ printf(" level=%s num-devices=%d",
+ str?str:"-unknown-",
+ array.raid_disks );
+ else if (!inactive)
+ printf(" level=container num-devices=%d",
+ array.nr_disks);
+ else
+ printf(" num-devices=%d", array.nr_disks);
+ }
+ if (container) {
+ printf(" container=%s", container);
+ printf(" member=%s", member);
+ } else {
+ if (sra && sra->array.major_version < 0)
+ printf(" metadata=%s", sra->text_version);
+ else
+ printf(" metadata=%d.%d",
+ array.major_version, array.minor_version);
+ }
+
+ /* Only try GET_BITMAP_FILE for 0.90.01 and later */
+ if (vers >= 9001 &&
+ ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
+ bmf.pathname[0]) {
+ printf(" bitmap=%s", bmf.pathname);
+ }
+ } else {
+ mdu_bitmap_file_t bmf;
+ unsigned long long larray_size;
+ struct mdstat_ent *ms = mdstat_read(0, 0);
+ struct mdstat_ent *e;
+ char *devnm;
+
+ devnm = stat2devnm(&stb);
+ for (e=ms; e; e=e->next)
+ if (strcmp(e->devnm, devnm) == 0)
+ break;
+ if (!get_dev_size(fd, NULL, &larray_size))
+ larray_size = 0;
+
+ printf("%s:\n", dev);
+
+ if (container)
+ printf(" Container : %s, member %s\n", container, member);
+ else {
+ if (sra && sra->array.major_version < 0)
+ printf(" Version : %s\n", sra->text_version);
+ else
+ printf(" Version : %d.%d\n",
+ array.major_version, array.minor_version);
+ }
+
+ atime = array.ctime;
+ if (atime)
+ printf(" Creation Time : %.24s\n", ctime(&atime));
+ if (array.raid_disks == 0 && external)
+ str = "container";
+ if (str)
+ printf(" Raid Level : %s\n", str);
+ if (larray_size)
+ printf(" Array Size : %llu%s\n", (larray_size>>10),
+ human_size(larray_size));
+ if (array.level >= 1) {
+ if (sra)
+ array.major_version = sra->array.major_version;
+ if (array.major_version != 0 &&
+ (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
+ unsigned long long dsize = get_component_size(fd);
+ if (dsize > 0)
+ printf(" Used Dev Size : %llu%s\n",
+ dsize/2,
+ human_size((long long)dsize<<9));
+ else
+ printf(" Used Dev Size : unknown\n");
+ } else
+ printf(" Used Dev Size : %lu%s\n",
+ (unsigned long)array.size,
+ human_size((unsigned long long)array.size<<10));
+ }
+ if (array.raid_disks)
+ printf(" Raid Devices : %d\n", array.raid_disks);
+ printf(" Total Devices : %d\n", array.nr_disks);
+ if (!container &&
+ ((sra == NULL && array.major_version == 0) ||
+ (sra && sra->array.major_version == 0)))
+ printf("Preferred Minor : %d\n", array.md_minor);
+ if (sra == NULL || sra->array.major_version >= 0)
+ printf(" Persistence : Superblock is %spersistent\n",
+ array.not_persistent?"not ":"");
+ printf("\n");
+ /* Only try GET_BITMAP_FILE for 0.90.01 and later */
+ if (vers >= 9001 &&
+ ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 &&
+ bmf.pathname[0]) {
+ printf(" Intent Bitmap : %s\n", bmf.pathname);
+ printf("\n");
+ } else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
+ printf(" Intent Bitmap : Internal\n\n");
+ atime = array.utime;
+ if (atime)
+ printf(" Update Time : %.24s\n", ctime(&atime));
+ if (array.raid_disks) {
+ static char *sync_action[] = {
+ ", recovering", ", resyncing",
+ ", reshaping", ", checking" };
+ char *st;
+ if (avail_disks == array.raid_disks)
+ st = "";
+ else if (!enough(array.level, array.raid_disks,
+ array.layout, 1, avail))
+ st = ", FAILED";
+ else
+ st = ", degraded";
+
+ printf(" State : %s%s%s%s%s%s \n",
+ (array.state&(1<<MD_SB_CLEAN))?"clean":"active", st,
+ (!e || (e->percent < 0 && e->percent != RESYNC_PENDING &&
+ e->percent != RESYNC_DELAYED)) ? "" : sync_action[e->resync],
+ larray_size ? "": ", Not Started",
+ (e && e->percent == RESYNC_DELAYED) ? " (DELAYED)": "",
+ (e && e->percent == RESYNC_PENDING) ? " (PENDING)": "");
+ } else if (inactive) {
+ printf(" State : inactive\n");
+ }
+ if (array.raid_disks)
+ printf(" Active Devices : %d\n", array.active_disks);
+ if (array.working_disks > 0)
+ printf("Working Devices : %d\n", array.working_disks);
+ if (array.raid_disks) {
+ printf(" Failed Devices : %d\n", array.failed_disks);
+ printf(" Spare Devices : %d\n", array.spare_disks);
+ }
+ printf("\n");
+ if (array.level == 5) {
+ str = map_num(r5layout, array.layout);
+ printf(" Layout : %s\n", str?str:"-unknown-");
+ }
+ if (array.level == 6) {
+ str = map_num(r6layout, array.layout);
+ printf(" Layout : %s\n", str?str:"-unknown-");
+ }
+ if (array.level == 10) {
+ printf(" Layout :");
+ print_r10_layout(array.layout);
+ printf("\n");
+ }
+ switch (array.level) {
+ case 0:
+ case 4:
+ case 5:
+ case 10:
+ case 6:
+ if (array.chunk_size)
+ printf(" Chunk Size : %dK\n\n",
+ array.chunk_size/1024);
+ break;
+ case -1:
+ printf(" Rounding : %dK\n\n", array.chunk_size/1024);
+ break;
+ default: break;
+ }
+
+ if (e && e->percent >= 0) {
+ static char *sync_action[] = {
+ "Rebuild", "Resync",
+ "Reshape", "Check"};
+ printf(" %7s Status : %d%% complete\n", sync_action[e->resync], e->percent);
+ is_rebuilding = 1;
+ }
+ free_mdstat(ms);
+
+ if ((st && st->sb) && (info && info->reshape_active)) {
+#if 0
+This is pretty boring
+ printf(" Reshape pos'n : %llu%s\n", (unsigned long long) info->reshape_progress<<9,
+ human_size((unsigned long long)info->reshape_progress<<9));
+#endif
+ if (info->delta_disks != 0)
+ printf(" Delta Devices : %d, (%d->%d)\n",
+ info->delta_disks,
+ array.raid_disks - info->delta_disks,
+ array.raid_disks);
+ if (info->new_level != array.level) {
+ str = map_num(pers, info->new_level);
+ printf(" New Level : %s\n", str?str:"-unknown-");
+ }
+ if (info->new_level != array.level ||
+ info->new_layout != array.layout) {
+ if (info->new_level == 5) {
+ str = map_num(r5layout, info->new_layout);
+ printf(" New Layout : %s\n",
+ str?str:"-unknown-");
+ }
+ if (info->new_level == 6) {
+ str = map_num(r6layout, info->new_layout);
+ printf(" New Layout : %s\n",
+ str?str:"-unknown-");
+ }
+ if (info->new_level == 10) {
+ printf(" New Layout : near=%d, %s=%d\n",
+ info->new_layout&255,
+ (info->new_layout&0x10000)?"offset":"far",
+ (info->new_layout>>8)&255);
+ }
+ }
+ if (info->new_chunk != array.chunk_size)
+ printf(" New Chunksize : %dK\n", info->new_chunk/1024);
+ printf("\n");
+ } else if (e && e->percent >= 0)
+ printf("\n");
+ if (st && st->sb)
+ st->ss->detail_super(st, c->homehost);
+
+ if (array.raid_disks == 0 && sra && sra->array.major_version == -1
+ && sra->array.minor_version == -2 && sra->text_version[0] != '/') {
+ /* This looks like a container. Find any active arrays
+ * That claim to be a member.
+ */
+ DIR *dir = opendir("/sys/block");
+ struct dirent *de;
+
+ printf(" Member Arrays :");
+
+ while (dir && (de = readdir(dir)) != NULL) {
+ char path[200];
+ char vbuf[1024];
+ int nlen = strlen(sra->sys_name);
+ int devid;
+ if (de->d_name[0] == '.')
+ continue;
+ sprintf(path, "/sys/block/%s/md/metadata_version",
+ de->d_name);
+ if (load_sys(path, vbuf) < 0)
+ continue;
+ if (strncmp(vbuf, "external:", 9) != 0 ||
+ !is_subarray(vbuf+9) ||
+ strncmp(vbuf+10, sra->sys_name, nlen) != 0 ||
+ vbuf[10+nlen] != '/')
+ continue;
+ devid = devnm2devid(de->d_name);
+ printf(" %s", map_dev_preferred(
+ major(devid),
+ minor(devid), 1, c->prefer));
+ }
+ if (dir)
+ closedir(dir);
+ printf("\n\n");
+ }
+
+ if (array.raid_disks)
+ printf(" Number Major Minor RaidDevice State\n");
+ else
+ printf(" Number Major Minor RaidDevice\n");
+ }
+ free(info);
+
+ for (d= 0; d < max_disks * 2; d++) {
+ char *dv;
+ mdu_disk_info_t disk = disks[d];
+
+ if (d >= array.raid_disks*2 &&
+ disk.major == 0 &&
+ disk.minor == 0)
+ continue;
+ if ((d & 1) &&
+ disk.major == 0 &&
+ disk.minor == 0)
+ continue;
+ if (!c->brief) {
+ if (d == array.raid_disks*2) printf("\n");
+ if (disk.number < 0 && disk.raid_disk < 0)
+ printf(" - %5d %5d - ",
+ disk.major, disk.minor);
+ else if (disk.raid_disk < 0 || disk.state & (1<<MD_DISK_JOURNAL))
+ printf(" %5d %5d %5d - ",
+ disk.number, disk.major, disk.minor);
+ else if (disk.number < 0)
+ printf(" - %5d %5d %5d ",
+ disk.major, disk.minor, disk.raid_disk);
+ else
+ printf(" %5d %5d %5d %5d ",
+ disk.number, disk.major, disk.minor, disk.raid_disk);
+ }
+ if (!c->brief && array.raid_disks) {
+
+ if (disk.state & (1<<MD_DISK_FAULTY)) {
+ printf(" faulty");
+ if (disk.raid_disk < array.raid_disks &&
+ disk.raid_disk >= 0)
+ failed++;
+ }
+ if (disk.state & (1<<MD_DISK_ACTIVE)) printf(" active");
+ if (disk.state & (1<<MD_DISK_SYNC)) {
+ printf(" sync");
+ if (array.level == 10 && (array.layout & ~0x1FFFF) == 0) {
+ int nc = array.layout & 0xff;
+ int fc = (array.layout >> 8) & 0xff;
+ int copies = nc*fc;
+ if (fc == 1 && array.raid_disks % copies == 0 && copies <= 26) {
+ /* We can divide the devices into 'sets' */
+ int set = disk.raid_disk % copies;
+ printf(" set-%c", set + 'A');
+ }
+ }
+ }
+ if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed");
+ if (disk.state & (1<<MD_DISK_WRITEMOSTLY)) printf(" writemostly");
+ if (disk.state & (1<<MD_DISK_JOURNAL)) printf(" journal");
+ if ((disk.state &
+ ((1<<MD_DISK_ACTIVE)|(1<<MD_DISK_SYNC)
+ |(1<<MD_DISK_REMOVED)|(1<<MD_DISK_FAULTY)|(1<<MD_DISK_JOURNAL)))
+ == 0) {
+ printf(" spare");
+ if (is_26) {
+ if (disk.raid_disk < array.raid_disks && disk.raid_disk >= 0)
+ printf(" rebuilding");
+ } else if (is_rebuilding && failed) {
+ /* Taking a bit of a risk here, we remove the
+ * device from the array, and then put it back.
+ * If this fails, we are rebuilding
+ */
+ int err = ioctl(fd, HOT_REMOVE_DISK, makedev(disk.major, disk.minor));
+ if (err == 0) ioctl(fd, HOT_ADD_DISK, makedev(disk.major, disk.minor));
+ if (err && errno == EBUSY)
+ printf(" rebuilding");
+ }
+ }
+ }
+ if (disk.state == 0) spares++;
+ dv=map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
+ if (dv != NULL) {
+ if (c->brief)
+ n_devices = add_device(dv, &devices,
+ &max_devices,
+ n_devices);
+ else
+ printf(" %s", dv);
+ }
+ if (!c->brief) printf("\n");
+ }
+ if (spares && c->brief && array.raid_disks) printf(" spares=%d", spares);
+ if (c->brief && st && st->sb)
+ st->ss->brief_detail_super(st);
+ if (st)
+ st->ss->free_super(st);
+
+ if (c->brief && c->verbose > 0 && devices) {
+ qsort(devices, n_devices, sizeof(*devices), cmpstringp);
+ printf("\n devices=%s", devices[0]);
+ for (d = 1; d < n_devices; d++)
+ printf(",%s", devices[d]);
+ }
+ if (c->brief)
+ printf("\n");
+ if (c->test &&
+ !enough(array.level, array.raid_disks, array.layout,
+ 1, avail))
+ rv = 2;
+
+ free(disks);
+out:
+ close(fd);
+ free(subarray);
+ free(avail);
+ for (d = 0; d < n_devices; d++)
+ free(devices[d]);
+ free(devices);
+ sysfs_free(sra);
+ return rv;
+}
+
+int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
+{
+ /* display platform capabilities for the given metadata format
+ * 'scan' in this context means iterate over all metadata types
+ */
+ int i;
+ int err = 1;
+
+ if (ss && export && ss->export_detail_platform)
+ err = ss->export_detail_platform(verbose, controller_path);
+ else if (ss && ss->detail_platform)
+ err = ss->detail_platform(verbose, 0, controller_path);
+ else if (ss) {
+ if (verbose > 0)
+ pr_err("%s metadata is platform independent\n",
+ ss->name ? : "[no name]");
+ } else if (!scan) {
+ if (verbose > 0)
+ pr_err("specify a metadata type or --scan\n");
+ }
+
+ if (!scan)
+ return err;
+
+ err = 0;
+ for (i = 0; superlist[i]; i++) {
+ struct superswitch *meta = superlist[i];
+
+ if (meta == ss)
+ continue;
+ if (verbose > 0)
+ pr_err("checking metadata %s\n",
+ meta->name ? : "[no name]");
+ if (!meta->detail_platform) {
+ if (verbose > 0)
+ pr_err("%s metadata is platform independent\n",
+ meta->name ? : "[no name]");
+ } else if (export && meta->export_detail_platform) {
+ err |= meta->export_detail_platform(verbose, controller_path);
+ } else
+ err |= meta->detail_platform(verbose, 0, controller_path);
+ }
+
+ return err;
+}