* .. other stuff
*/
-
static unsigned long calc_sb0_csum(mdp_super_t *super)
{
unsigned long csum = super->sb_csum;
return newcsum;
}
-
static void super0_swap_endian(struct mdp_superblock_s *sb)
{
/* as super0 superblocks are host-endian, it is sometimes
}
-#ifndef MDASSEMBLE
-
static void examine_super0(struct supertype *st, char *homehost)
{
mdp_super_t *sb = st->sb;
char *c;
printf(" Magic : %08x\n", sb->md_magic);
- printf(" Version : %d.%02d.%02d\n", sb->major_version, sb->minor_version,
- sb->patch_version);
+ printf(" Version : %d.%02d.%02d\n",
+ sb->major_version, sb->minor_version, sb->patch_version);
if (sb->minor_version >= 90) {
- printf(" UUID : %08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
- sb->set_uuid2, sb->set_uuid3);
+ printf(" UUID : %08x:%08x:%08x:%08x", sb->set_uuid0,
+ sb->set_uuid1, sb->set_uuid2, sb->set_uuid3);
if (homehost) {
char buf[20];
- void *hash = sha1_buffer(homehost,
- strlen(homehost),
- buf);
- if (memcmp(&sb->set_uuid2, hash, 8)==0)
+ void *hash;
+
+ hash = sha1_buffer(homehost, strlen(homehost), buf);
+ if (memcmp(&sb->set_uuid2, hash, 8) == 0)
printf(" (local to host %s)", homehost);
}
printf("\n");
atime = sb->ctime;
printf(" Creation Time : %.24s\n", ctime(&atime));
- c=map_num(pers, sb->level);
+ c = map_num(pers, sb->level);
printf(" Raid Level : %s\n", c?c:"-unknown-");
if ((int)sb->level > 0) {
int ddsks = 0, ddsks_denom = 1;
printf(" Used Dev Size : %d%s\n", sb->size,
human_size((long long)sb->size<<10));
switch(sb->level) {
- case 1: ddsks=1;break;
+ case 1:
+ ddsks=1;
+ break;
case 4:
- case 5: ddsks = sb->raid_disks-1; break;
- case 6: ddsks = sb->raid_disks-2; break;
- case 10: ddsks = sb->raid_disks;
- ddsks_denom = (sb->layout&255) * ((sb->layout>>8)&255);
+ case 5:
+ ddsks = sb->raid_disks - 1;
+ break;
+ case 6:
+ ddsks = sb->raid_disks - 2;
+ break;
+ case 10:
+ ddsks = sb->raid_disks;
+ ddsks_denom =
+ (sb->layout & 255) * ((sb->layout >> 8) & 255);
}
if (ddsks) {
long long asize = sb->size;
printf(" Total Devices : %d\n", sb->nr_disks);
printf("Preferred Minor : %d\n", sb->md_minor);
printf("\n");
- if (sb->minor_version > 90 && (sb->reshape_position+1) != 0) {
- printf(" Reshape pos'n : %llu%s\n", (unsigned long long)sb->reshape_position/2, human_size((long long)sb->reshape_position<<9));
+ if (sb->minor_version > 90 && (sb->reshape_position + 1) != 0) {
+ printf(" Reshape pos'n : %llu%s\n",
+ (unsigned long long)sb->reshape_position / 2,
+ human_size((long long)sb->reshape_position << 9));
if (sb->delta_disks) {
printf(" Delta Devices : %d", sb->delta_disks);
- printf(" (%d->%d)\n", sb->raid_disks-sb->delta_disks, sb->raid_disks);
+ printf(" (%d->%d)\n", sb->raid_disks-sb->delta_disks,
+ sb->raid_disks);
if (((int)sb->delta_disks) < 0)
delta_extra = - sb->delta_disks;
}
if (sb->new_layout != sb->layout) {
if (sb->level == 5) {
c = map_num(r5layout, sb->new_layout);
- printf(" New Layout : %s\n", c?c:"-unknown-");
+ printf(" New Layout : %s\n",
+ c?c:"-unknown-");
}
if (sb->level == 6) {
c = map_num(r6layout, sb->new_layout);
- printf(" New Layout : %s\n", c?c:"-unknown-");
+ printf(" New Layout : %s\n",
+ c?c:"-unknown-");
}
if (sb->level == 10) {
printf(" New Layout : near=%d, %s=%d\n",
atime = sb->utime;
printf(" Update Time : %.24s\n", ctime(&atime));
printf(" State : %s\n",
- (sb->state&(1<<MD_SB_CLEAN))?"clean":"active");
- if (sb->state & (1<<MD_SB_BITMAP_PRESENT))
+ (sb->state&(1 << MD_SB_CLEAN)) ? "clean":"active");
+ if (sb->state & (1 << MD_SB_BITMAP_PRESENT))
printf("Internal Bitmap : present\n");
printf(" Active Devices : %d\n", sb->active_disks);
printf("Working Devices : %d\n", sb->working_disks);
if (calc_sb0_csum(sb) == sb->sb_csum)
printf(" Checksum : %x - correct\n", sb->sb_csum);
else
- printf(" Checksum : %x - expected %lx\n", sb->sb_csum, calc_sb0_csum(sb));
+ printf(" Checksum : %x - expected %lx\n",
+ sb->sb_csum, calc_sb0_csum(sb));
printf(" Events : %llu\n",
- ((unsigned long long)sb->events_hi << 32)
- + sb->events_lo);
+ ((unsigned long long)sb->events_hi << 32) + sb->events_lo);
printf("\n");
if (sb->level == 5) {
c = map_num(r5layout, sb->layout);
case 5:
case 6:
case 10:
- printf(" Chunk Size : %dK\n", sb->chunk_size/1024);
+ printf(" Chunk Size : %dK\n", sb->chunk_size / 1024);
break;
case -1:
- printf(" Rounding : %dK\n", sb->chunk_size/1024);
+ printf(" Rounding : %dK\n", sb->chunk_size / 1024);
+ break;
+ default:
break;
- default: break;
}
printf("\n");
printf(" Number Major Minor RaidDevice State\n");
- for (d= -1; d<(signed int)(sb->raid_disks+delta_extra + sb->spare_disks); d++) {
+ for (d = -1;
+ d < (signed int)(sb->raid_disks + delta_extra + sb->spare_disks);
+ d++) {
mdp_disk_t *dp;
char *dv;
- char nb[5];
- int wonly;
+ char nb[11];
+ int wonly, failfast;
if (d>=0) dp = &sb->disks[d];
else dp = &sb->this_disk;
snprintf(nb, sizeof(nb), "%4d", d);
- printf("%4s %5d %5d %5d %5d ", d < 0 ? "this" : nb,
+ printf("%4s %5d %5d %5d %5d ", d < 0 ? "this" : nb,
dp->number, dp->major, dp->minor, dp->raid_disk);
- wonly = dp->state & (1<<MD_DISK_WRITEMOSTLY);
- dp->state &= ~(1<<MD_DISK_WRITEMOSTLY);
- if (dp->state & (1<<MD_DISK_FAULTY)) printf(" faulty");
- if (dp->state & (1<<MD_DISK_ACTIVE)) printf(" active");
- if (dp->state & (1<<MD_DISK_SYNC)) printf(" sync");
- if (dp->state & (1<<MD_DISK_REMOVED)) printf(" removed");
- if (wonly) printf(" write-mostly");
- if (dp->state == 0) printf(" spare");
- if ((dv=map_dev(dp->major, dp->minor, 0)))
+ wonly = dp->state & (1 << MD_DISK_WRITEMOSTLY);
+ failfast = dp->state & (1<<MD_DISK_FAILFAST);
+ dp->state &= ~(wonly | failfast);
+ if (dp->state & (1 << MD_DISK_FAULTY))
+ printf(" faulty");
+ if (dp->state & (1 << MD_DISK_ACTIVE))
+ printf(" active");
+ if (dp->state & (1 << MD_DISK_SYNC))
+ printf(" sync");
+ if (dp->state & (1 << MD_DISK_REMOVED))
+ printf(" removed");
+ if (wonly)
+ printf(" write-mostly");
+ if (failfast)
+ printf(" failfast");
+ if (dp->state == 0)
+ printf(" spare");
+ if ((dv = map_dev(dp->major, dp->minor, 0)))
printf(" %s", dv);
printf("\n");
- if (d == -1) printf("\n");
+ if (d == -1)
+ printf("\n");
}
}
+ sb->events_lo);
}
+static int copy_metadata0(struct supertype *st, int from, int to)
+{
+ /* Read 64K from the appropriate offset of 'from'
+ * and if it looks a little like a 0.90 superblock,
+ * write it to the same offset of 'to'
+ */
+ void *buf;
+ unsigned long long dsize, offset;
+ const int bufsize = 64*1024;
+ mdp_super_t *super;
+
+ if (posix_memalign(&buf, 4096, bufsize) != 0)
+ return 1;
+
+ if (!get_dev_size(from, NULL, &dsize))
+ goto err;
+
+ if (dsize < MD_RESERVED_SECTORS*512)
+ goto err;
+
+ offset = MD_NEW_SIZE_SECTORS(dsize>>9);
+
+ offset *= 512;
+
+ if (lseek64(from, offset, 0) < 0LL)
+ goto err;
+ if (read(from, buf, bufsize) != bufsize)
+ goto err;
+
+ if (lseek64(to, offset, 0) < 0LL)
+ goto err;
+ super = buf;
+ if (super->md_magic != MD_SB_MAGIC ||
+ super->major_version != 0 ||
+ calc_sb0_csum(super) != super->sb_csum)
+ goto err;
+ if (write(to, buf, bufsize) != bufsize)
+ goto err;
+ free(buf);
+ return 0;
+err:
+ free(buf);
+ return 1;
+}
+
static void detail_super0(struct supertype *st, char *homehost)
{
mdp_super_t *sb = st->sb;
- printf(" UUID : ");
+ printf(" UUID : ");
if (sb->minor_version >= 90)
printf("%08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
sb->set_uuid2, sb->set_uuid3);
if (memcmp(&sb->set_uuid2, hash, 8)==0)
printf(" (local to host %s)", homehost);
}
- printf("\n Events : %d.%d\n\n", sb->events_hi, sb->events_lo);
+ printf("\n Events : %d.%d\n\n", sb->events_hi, sb->events_lo);
}
static void brief_detail_super0(struct supertype *st)
else
printf("%08x", sb->set_uuid0);
}
-#endif
static int match_home0(struct supertype *st, char *homehost)
{
info->array.utime = sb->utime;
info->array.chunk_size = sb->chunk_size;
info->array.state = sb->state;
- info->component_size = sb->size*2;
+ info->component_size = sb->size;
+ info->component_size *= 2;
if (sb->state & (1<<MD_SB_BITMAP_PRESENT))
info->bitmap_offset = 8;
} else if (strcmp(update, "assemble")==0) {
int d = info->disk.number;
int wonly = sb->disks[d].state & (1<<MD_DISK_WRITEMOSTLY);
- int mask = (1<<MD_DISK_WRITEMOSTLY);
+ int failfast = sb->disks[d].state & (1<<MD_DISK_FAILFAST);
+ int mask = (1<<MD_DISK_WRITEMOSTLY)|(1<<MD_DISK_FAILFAST);
int add = 0;
if (sb->minor_version >= 91)
/* During reshape we don't insist on everything
* being marked 'sync'
*/
add = (1<<MD_DISK_SYNC);
- if (((sb->disks[d].state & ~mask) | add)
- != (unsigned)info->disk.state) {
- sb->disks[d].state = info->disk.state | wonly;
+ if (((sb->disks[d].state & ~mask) | add) !=
+ (unsigned)info->disk.state) {
+ sb->disks[d].state = info->disk.state | wonly |failfast;
rv = 1;
}
if (info->reshape_active &&
uuid_from_super0(st, uuid);
memcpy(bm->uuid, uuid, 16);
}
+ } else if (strcmp(update, "metadata") == 0) {
+ /* Create some v1.0 metadata to match ours but make the
+ * ctime bigger. Also update info->array.*_version.
+ * We need to arrange that store_super writes out
+ * the v1.0 metadata.
+ * Not permitted for unclean array, or array with
+ * bitmap.
+ */
+ if (info->bitmap_offset) {
+ pr_err("Cannot update metadata when bitmap is present\n");
+ rv = -2;
+ } else if (info->array.state != 1) {
+ pr_err("Cannot update metadata on unclean array\n");
+ rv = -2;
+ } else {
+ info->array.major_version = 1;
+ info->array.minor_version = 0;
+ uuid_from_super0(st, info->uuid);
+ st->other = super1_make_v0(st, info, st->sb);
+ }
+ } else if (strcmp(update, "revert-reshape") == 0) {
+ rv = -2;
+ if (sb->minor_version <= 90)
+ pr_err("No active reshape to revert on %s\n",
+ devname);
+ else if (sb->delta_disks == 0)
+ pr_err("%s: Can only revert reshape which changes number of devices\n",
+ devname);
+ else {
+ int tmp;
+ int parity = sb->level == 6 ? 2 : 1;
+ rv = 0;
+
+ if (sb->level >= 4 && sb->level <= 6 &&
+ sb->reshape_position % (
+ sb->new_chunk/512 *
+ (sb->raid_disks - sb->delta_disks - parity))) {
+ pr_err("Reshape position is not suitably aligned.\n");
+ pr_err("Try normal assembly and stop again\n");
+ return -2;
+ }
+ sb->raid_disks -= sb->delta_disks;
+ sb->delta_disks = -sb->delta_disks;
+
+ tmp = sb->new_layout;
+ sb->new_layout = sb->layout;
+ sb->layout = tmp;
+
+ tmp = sb->new_chunk;
+ sb->new_chunk = sb->chunk_size;
+ sb->chunk_size = tmp;
+ }
} else if (strcmp(update, "no-bitmap") == 0) {
sb->state &= ~(1<<MD_SB_BITMAP_PRESENT);
} else if (strcmp(update, "_reshape_progress")==0)
}
/*
- * For verion-0 superblock, the homehost is 'stored' in the
- * uuid. 8 bytes for a hash of the host leaving 8 bytes
- * of random material.
- * We use the first 8 bytes (64bits) of the sha1 of the
- * host name
+ * For version-0 superblock, the homehost is 'stored' in the uuid.
+ * 8 bytes for a hash of the host leaving 8 bytes of random material.
+ * We use the first 8 bytes (64bits) of the sha1 of the host name
*/
-
-
static int init_super0(struct supertype *st, mdu_array_info_t *info,
- unsigned long long size, char *ignored_name, char *homehost,
- int *uuid, unsigned long long data_offset)
+ struct shape *s, char *ignored_name,
+ char *homehost, int *uuid,
+ unsigned long long data_offset)
{
mdp_super_t *sb;
int spares;
if (data_offset != INVALID_SECTORS) {
- fprintf(stderr, Name ": data-offset not support for 0.90\n");
+ pr_err("data-offset not support for 0.90\n");
return 0;
}
if (posix_memalign((void**)&sb, 4096,
MD_SB_BYTES + ROUND_UP(sizeof(bitmap_super_t), 4096)) != 0) {
- pr_err("%s could not allocate superblock\n", __func__);
+ pr_err("could not allocate superblock\n");
return 0;
}
memset(sb, 0, MD_SB_BYTES + sizeof(bitmap_super_t));
sb->gvalid_words = 0; /* ignored */
sb->ctime = time(0);
sb->level = info->level;
- sb->size = size;
- if (size != (unsigned long long)sb->size)
+ sb->size = s->size;
+ if (s->size != (unsigned long long)sb->size)
return 0;
sb->nr_disks = info->nr_disks;
sb->raid_disks = info->raid_disks;
sb->set_uuid2 = uuid[2];
sb->set_uuid3 = uuid[3];
} else {
- int rfd = open("/dev/urandom", O_RDONLY);
- if (rfd < 0 || read(rfd, &sb->set_uuid0, 4) != 4)
- sb->set_uuid0 = random();
- if (rfd < 0 || read(rfd, &sb->set_uuid1, 12) != 12) {
- sb->set_uuid1 = random();
- sb->set_uuid2 = random();
- sb->set_uuid3 = random();
- }
- if (rfd >= 0)
- close(rfd);
+ __u32 r[4];
+ random_uuid((__u8 *)r);
+ sb->set_uuid0 = r[0];
+ sb->set_uuid1 = r[1];
+ sb->set_uuid2 = r[2];
+ sb->set_uuid3 = r[3];
}
if (homehost && !uuid) {
char buf[20];
struct devinfo *next;
};
-#ifndef MDASSEMBLE
/* Add a device to the superblock being created */
static int add_to_super0(struct supertype *st, mdu_disk_info_t *dinfo,
int fd, char *devname, unsigned long long data_offset)
dk->major = dinfo->major;
dk->minor = dinfo->minor;
dk->raid_disk = dinfo->raid_disk;
- dk->state = dinfo->state;
- /* In case our source disk was writemostly, don't copy that bit */
- dk->state &= ~(1<<MD_DISK_WRITEMOSTLY);
+ dk->state = dinfo->state & ((1<<MD_DISK_ACTIVE) |
+ (1<<MD_DISK_SYNC));
sb->this_disk = sb->disks[dinfo->number];
sb->sb_csum = calc_sb0_csum(sb);
return 0;
}
-#endif
static int store_super0(struct supertype *st, int fd)
{
if (dsize < MD_RESERVED_SECTORS*512)
return 2;
+ if (st->other) {
+ /* Writing out v1.0 metadata for --update=metadata */
+ int ret = 0;
+
+ offset = dsize/512 - 8*2;
+ offset &= ~(4*2-1);
+ offset *= 512;
+ if (lseek64(fd, offset, 0)< 0LL)
+ ret = 3;
+ else if (write(fd, st->other, 1024) != 1024)
+ ret = 4;
+ else
+ fsync(fd);
+ free(st->other);
+ st->other = NULL;
+ return ret;
+ }
+
offset = MD_NEW_SIZE_SECTORS(dsize>>9);
offset *= 512;
if (super->state & (1<<MD_SB_BITMAP_PRESENT)) {
struct bitmap_super_s * bm = (struct bitmap_super_s*)(super+1);
if (__le32_to_cpu(bm->magic) == BITMAP_MAGIC)
- if (write(fd, bm, ROUND_UP(sizeof(*bm),4096)) !=
+ if (write(fd, bm, ROUND_UP(sizeof(*bm),4096)) !=
ROUND_UP(sizeof(*bm),4096))
return 5;
}
return 0;
}
-#ifndef MDASSEMBLE
static int write_init_super0(struct supertype *st)
{
mdp_super_t *sb = st->sb;
for (di = st->info ; di && ! rv ; di = di->next) {
- if (di->disk.state == 1)
+ if (di->disk.state & (1 << MD_DISK_FAULTY))
continue;
if (di->fd == -1)
continue;
rv = store_super0(st, di->fd);
if (rv == 0 && (sb->state & (1<<MD_SB_BITMAP_PRESENT)))
- rv = st->ss->write_bitmap(st, di->fd);
+ rv = st->ss->write_bitmap(st, di->fd, NoUpdate);
if (rv)
pr_err("failed to write superblock to %s\n",
}
return rv;
}
-#endif
static int compare_super0(struct supertype *st, struct supertype *tst)
{
return 1;
if (!first) {
if (posix_memalign((void**)&first, 4096,
- MD_SB_BYTES +
+ MD_SB_BYTES +
ROUND_UP(sizeof(struct bitmap_super_s), 4096)) != 0) {
- pr_err("%s could not allocate superblock\n", __func__);
+ pr_err("could not allocate superblock\n");
return 1;
}
memcpy(first, second, MD_SB_BYTES + sizeof(struct bitmap_super_s));
return 0;
}
-
static void free_super0(struct supertype *st);
static int load_super0(struct supertype *st, int fd, char *devname)
devname, dsize);
return 1;
}
+ st->devsize = dsize;
offset = MD_NEW_SIZE_SECTORS(dsize>>9);
if (posix_memalign((void**)&super, 4096,
MD_SB_BYTES +
ROUND_UP(sizeof(bitmap_super_t), 4096)) != 0) {
- pr_err("%s could not allocate superblock\n", __func__);
+ pr_err("could not allocate superblock\n");
return 1;
}
* valid. If it doesn't clear the bit. An --assemble --force
* should get that written out.
*/
- if (read(fd, super+1, ROUND_UP(sizeof(struct bitmap_super_s),4096))
- != ROUND_UP(sizeof(struct bitmap_super_s),4096))
+ if (read(fd, super+1, ROUND_UP(sizeof(struct bitmap_super_s),4096)) !=
+ ROUND_UP(sizeof(struct bitmap_super_s), 4096))
goto no_bitmap;
uuid_from_super0(st, uuid);
bitmap_super_t *bms = (bitmap_super_t*)(((char*)sb) + MD_SB_BYTES);
int uuid[4];
-
min_chunk = 4096; /* sub-page chunks don't work yet.. */
bits = (size * 512) / min_chunk + 1;
while (bits > max_bits) {
if (chunk < 64*1024*1024)
chunk = 64*1024*1024;
} else if ((unsigned long long)chunk < min_chunk)
- return 0; /* chunk size too small */
+ return -EINVAL; /* chunk size too small */
sb->state |= (1<<MD_SB_BITMAP_PRESENT);
bms->sync_size = __cpu_to_le64(size);
bms->write_behind = __cpu_to_le32(write_behind);
*chunkp = chunk;
- return 1;
+ return 0;
}
-
-static void locate_bitmap0(struct supertype *st, int fd)
+static int locate_bitmap0(struct supertype *st, int fd, int node_num)
{
unsigned long long dsize;
unsigned long long offset;
if (!get_dev_size(fd, NULL, &dsize))
- return;
+ return -1;
if (dsize < MD_RESERVED_SECTORS*512)
- return;
+ return -1;
offset = MD_NEW_SIZE_SECTORS(dsize>>9);
offset += MD_SB_BYTES;
lseek64(fd, offset, 0);
+ return 0;
}
-static int write_bitmap0(struct supertype *st, int fd)
+static int write_bitmap0(struct supertype *st, int fd, enum bitmap_update update)
{
unsigned long long dsize;
unsigned long long offset;
st->sb = NULL;
}
-#ifndef MDASSEMBLE
static int validate_geometry0(struct supertype *st, int level,
int layout, int raiddisks,
int *chunk, unsigned long long size,
unsigned long long data_offset,
char *subdev, unsigned long long *freesize,
- int verbose)
+ int consistency_policy, int verbose)
{
unsigned long long ldsize;
int fd;
}
if (size >= tbmax * 2ULL*1024*1024*1024) {
if (verbose)
- pr_err("0.90 metadata supports at most "
- "%d terabytes per device\n", tbmax);
+ pr_err("0.90 metadata supports at most %d terabytes per device\n", tbmax);
return 0;
}
- if (chunk && *chunk == UnSet)
+ if (*chunk == UnSet)
*chunk = DEFAULT_CHUNK;
if (!subdev)
*freesize = MD_NEW_SIZE_SECTORS(ldsize >> 9);
return 1;
}
-#endif /* MDASSEMBLE */
struct superswitch super0 = {
-#ifndef MDASSEMBLE
.examine_super = examine_super0,
.brief_examine_super = brief_examine_super0,
.export_examine_super = export_examine_super0,
.write_init_super = write_init_super0,
.validate_geometry = validate_geometry0,
.add_to_super = add_to_super0,
-#endif
+ .copy_metadata = copy_metadata0,
.match_home = match_home0,
.uuid_from_super = uuid_from_super0,
.getinfo_super = getinfo_super0,
projects / thirdparty / mdadm.git / blobdiff