/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*/
#include "mdadm.h"
int is_26 = get_linux_version() >= 2006000;
int is_rebuilding = 0;
int failed = 0;
- struct supertype *st = NULL;
+ struct supertype *st;
+ char *subarray = NULL;
int max_disks = MD_SB_DISKS; /* just a default */
- struct mdinfo info;
+ struct mdinfo *info = NULL;
struct mdinfo *sra;
char *member = NULL;
char *container = NULL;
return rv;
}
sra = sysfs_read(fd, 0, GET_VERSION);
- st = super_by_fd(fd);
+ st = super_by_fd(fd, &subarray);
if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
stb.st_rdev = 0;
if (st)
max_disks = st->max_devs;
- if (sra && is_subarray(sra->text_version) &&
- strchr(sra->text_version+1, '/')) {
+ if (subarray) {
/* This is a subarray of some container.
* We want the name of the container, and the member
*/
- char *s = strchr(sra->text_version+1, '/');
- int dn;
- *s++ = '\0';
- member = s;
- dn = devname2devnum(sra->text_version+1);
+ int dn = st->container_dev;
+
+ member = subarray;
container = map_dev(dev2major(dn), dev2minor(dn), 1);
}
/* try to load a superblock */
- for (d= 0; d<max_disks; d++) {
+ if (st) for (d = 0; d < max_disks; d++) {
mdu_disk_info_t disk;
char *dv;
+ int fd2;
+ int err;
disk.number = d;
if (ioctl(fd, GET_DISK_INFO, &disk) < 0)
continue;
disk.major == 0 &&
disk.minor == 0)
continue;
- if ((dv=map_dev(disk.major, disk.minor, 1))) {
- if ((!st || !st->sb) &&
- (array.raid_disks == 0 ||
- (disk.state & (1<<MD_DISK_ACTIVE)))) {
- /* try to read the superblock from this device
- * to get more info
- */
- int fd2 = dev_open(dv, O_RDONLY);
- if (fd2 >=0 && st &&
- st->ss->load_super(st, fd2, NULL) == 0) {
- st->ss->getinfo_super(st, &info);
- if (array.raid_disks != 0 && /* container */
- (info.array.ctime != array.ctime ||
- info.array.level != array.level))
- st->ss->free_super(st);
- }
- if (fd2 >= 0) close(fd2);
- }
+
+ 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 = malloc(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... */
if (sra && sra->array.major_version < 0)
printf("MD_METADATA=%s\n", sra->text_version);
else
- printf("MD_METADATA=%d.%02d\n",
+ printf("MD_METADATA=%d.%d\n",
array.major_version, array.minor_version);
}
- if (st && st->sb) {
- struct mdinfo info;
+ if (st && st->sb && info) {
char nbuf[64];
struct map_ent *mp, *map = NULL;
- st->ss->getinfo_super(st, &info);
- fname_from_uuid(st, &info, nbuf, ':');
+
+ fname_from_uuid(st, info, nbuf, ':');
printf("MD_UUID=%s\n", nbuf+5);
- mp = map_by_uuid(&map, info.uuid);
+ mp = map_by_uuid(&map, info->uuid);
if (mp && mp->path &&
strncmp(mp->path, "/dev/md/", 8) == 0)
printf("MD_DEVNAME=%s\n", mp->path+8);
st->ss->export_detail_super(st);
} else {
struct map_ent *mp, *map = NULL;
+ char nbuf[64];
mp = map_by_devnum(&map, fd2devnum(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=%s\n", mp->path+8);
goto out;
}
+ disks = malloc(max_disks * sizeof(mdu_disk_info_t));
+ for (d=0; d<max_disks; d++) {
+ disks[d].state = (1<<MD_DISK_REMOVED);
+ disks[d].major = disks[d].minor = 0;
+ disks[d].number = disks[d].raid_disk = d;
+ }
+
+ next = array.raid_disks;
+ 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)
+ fprintf(stderr, Name ": 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] = disk;
+ else if (next < max_disks)
+ disks[next++] = disk;
+ }
+
+ avail = calloc(array.raid_disks, 1);
+
+ for (d= 0; d < array.raid_disks; d++) {
+ mdu_disk_info_t disk = disks[d];
+
+ if ((disk.state & (1<<MD_DISK_SYNC))) {
+ avail_disks ++;
+ avail[d] = 1;
+ }
+ }
+
if (brief) {
mdu_bitmap_file_t bmf;
printf("ARRAY %s", dev);
if (brief > 1) {
if (array.raid_disks)
- printf("level=%s num-devices=%d",
+ printf(" level=%s num-devices=%d",
c?c:"-unknown-",
array.raid_disks );
else
- printf("level=container num-devices=%d",
+ printf(" level=container num-devices=%d",
array.nr_disks);
}
if (container) {
if (sra && sra->array.major_version < 0)
printf(" metadata=%s", sra->text_version);
else
- printf(" metadata=%d.%02d",
+ printf(" metadata=%d.%d",
array.major_version, array.minor_version);
}
struct mdstat_ent *ms = mdstat_read(0, 0);
struct mdstat_ent *e;
int devnum = array.md_minor;
- if (major(stb.st_rdev) == get_mdp_major())
+ if (major(stb.st_rdev) == (unsigned)get_mdp_major())
devnum = -1 - devnum;
for (e=ms; e; e=e->next)
if (sra && sra->array.major_version < 0)
printf(" Version : %s\n", sra->text_version);
else
- printf(" Version : %d.%02d\n",
+ printf(" Version : %d.%d\n",
array.major_version, array.minor_version);
}
atime = array.utime;
if (atime)
printf(" Update Time : %.24s\n", ctime(&atime));
- if (array.raid_disks)
+ 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, avail_disks))
+ st = ", FAILED";
+ else
+ st = ", degraded";
+
printf(" State : %s%s%s%s\n",
(array.state&(1<<MD_SB_CLEAN))?"clean":"active",
- array.active_disks < array.raid_disks? ", degraded":"",
- (!e || e->percent < 0) ? "" :
- (e->resync) ? ", resyncing": ", recovering",
+ st,
+ (!e || e->percent < 0) ? "" : sync_action[e->resync],
larray_size ? "": ", Not Started");
+ }
if (array.raid_disks)
printf(" Active Devices : %d\n", array.active_disks);
printf("Working Devices : %d\n", array.working_disks);
if (e && e->percent >= 0) {
printf(" Re%s Status : %d%% complete\n",
- (st && st->sb && info.reshape_active)?
+ (st && st->sb && info->reshape_active)?
"shape":"build",
e->percent);
is_rebuilding = 1;
}
free_mdstat(ms);
- if (st->sb && info.reshape_active) {
+ if (st->sb && 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(info.reshape_progress<<9));
+ 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)
+ 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.delta_disks < 0)
+ info->delta_disks, array.raid_disks - info->delta_disks, array.raid_disks);
+ if (info->delta_disks < 0)
printf(" Delta Devices : %d, (%d->%d)\n",
- info.delta_disks, array.raid_disks, array.raid_disks + info.delta_disks);
- if (info.new_level != array.level) {
- char *c = map_num(pers, info.new_level);
+ info->delta_disks, array.raid_disks, array.raid_disks + info->delta_disks);
+ if (info->new_level != array.level) {
+ char *c = map_num(pers, info->new_level);
printf(" New Level : %s\n", c?c:"-unknown-");
}
- if (info.new_level != array.level ||
- info.new_layout != array.layout) {
- if (info.new_level == 5) {
- char *c = map_num(r5layout, info.new_layout);
+ if (info->new_level != array.level ||
+ info->new_layout != array.layout) {
+ if (info->new_level == 5) {
+ char *c = map_num(r5layout, info->new_layout);
+ printf(" New Layout : %s\n",
+ c?c:"-unknown-");
+ }
+ if (info->new_level == 6) {
+ char *c = map_num(r6layout, info->new_layout);
printf(" New Layout : %s\n",
c?c:"-unknown-");
}
- if (info.new_level == 10) {
+ 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);
+ 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);
+ 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");
else
printf(" Number Major Minor RaidDevice\n");
}
- disks = malloc(max_disks * sizeof(mdu_disk_info_t));
- for (d=0; d<max_disks; d++) {
- disks[d].state = (1<<MD_DISK_REMOVED);
- disks[d].major = disks[d].minor = 0;
- disks[d].number = disks[d].raid_disk = d;
- }
+ free(info);
- next = array.raid_disks;
- 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)
- fprintf(stderr, Name ": 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] = disk;
- else if (next < max_disks)
- disks[next++] = disk;
- }
-
- avail = calloc(array.raid_disks, 1);
for (d= 0; d < max_disks; d++) {
char *dv;
mdu_disk_info_t disk = disks[d];
if (test && d < array.raid_disks
&& !(disk.state & (1<<MD_DISK_SYNC)))
rv |= 1;
- if (d < array.raid_disks
- && (disk.state & (1<<MD_DISK_SYNC))) {
- avail_disks ++;
- avail[d] = 1;
- }
if ((dv=map_dev(disk.major, disk.minor, 0))) {
if (brief) {
if (devices) {
1, avail, avail_disks))
rv = 2;
+ free(disks);
out:
close(fd);
+ free(subarray);
return rv;
}
projects / thirdparty / mdadm.git / blobdiff