return join_u32(map->num_data_stripes_lo, map->num_data_stripes_hi);
}
+static unsigned long long imsm_dev_size(struct imsm_dev *dev)
+{
+ if (dev == NULL)
+ return 0;
+ return join_u32(dev->size_low, dev->size_high);
+}
+
static void set_total_blocks(struct imsm_disk *disk, unsigned long long n)
{
split_ull(n, &disk->total_blocks_lo, &disk->total_blocks_hi);
split_ull(n, &map->num_data_stripes_lo, &map->num_data_stripes_hi);
}
+static void set_imsm_dev_size(struct imsm_dev *dev, unsigned long long n)
+{
+ split_ull(n, &dev->size_low, &dev->size_high);
+}
+
+static unsigned long long per_dev_array_size(struct imsm_map *map)
+{
+ unsigned long long array_size = 0;
+
+ if (map == NULL)
+ return array_size;
+
+ array_size = num_data_stripes(map) * map->blocks_per_strip;
+ if (get_imsm_raid_level(map) == 1 || get_imsm_raid_level(map) == 10)
+ array_size *= 2;
+
+ return array_size;
+}
+
static struct extent *get_extents(struct intel_super *super, struct dl *dl)
{
/* find a list of used extents on the given physical device */
if (get_imsm_disk_slot(map, dl->index) >= 0) {
e->start = pba_of_lba0(map);
- e->size = blocks_per_member(map);
+ e->size = per_dev_array_size(map);
e++;
}
}
} else
printf(" This Slot : ?\n");
printf(" Sector Size : %u\n", super->sector_size);
- sz = __le32_to_cpu(dev->size_high);
- sz <<= 32;
- sz += __le32_to_cpu(dev->size_low);
+ sz = imsm_dev_size(dev);
printf(" Array Size : %llu%s\n",
(unsigned long long)sz * 512 / super->sector_size,
human_size(sz * 512));
struct imsm_dev *dev = __get_imsm_dev(mpb, i);
struct imsm_map *map = get_imsm_map(dev, MAP_0);
/* dev */
- split_ull((join_u32(dev->size_low, dev->size_high)/IMSM_4K_DIV),
- &dev->size_low, &dev->size_high);
+ set_imsm_dev_size(dev, imsm_dev_size(dev)/IMSM_4K_DIV);
dev->vol.curr_migr_unit /= IMSM_4K_DIV;
/* map0 */
struct imsm_dev *dev = __get_imsm_dev(mpb, i);
struct imsm_map *map = get_imsm_map(dev, MAP_0);
/* dev */
- split_ull((join_u32(dev->size_low, dev->size_high)*IMSM_4K_DIV),
- &dev->size_low, &dev->size_high);
+ set_imsm_dev_size(dev, imsm_dev_size(dev)*IMSM_4K_DIV);
dev->vol.curr_migr_unit *= IMSM_4K_DIV;
/* map0 */
strncpy(str, (char *)mpb->sig, MPB_SIG_LEN);
str[MPB_SIG_LEN-1] = '\0';
printf(" Magic : %s\n", str);
- snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb));
printf(" Version : %s\n", get_imsm_version(mpb));
printf(" Orig Family : %08x\n", __le32_to_cpu(mpb->orig_family_num));
printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num));
return num_stripes_per_unit_resync(dev);
}
-static __u8 imsm_num_data_members(struct imsm_dev *dev, int second_map)
+static __u8 imsm_num_data_members(struct imsm_map *map)
{
/* named 'imsm_' because raid0, raid1 and raid10
* counter-intuitively have the same number of data disks
*/
- struct imsm_map *map = get_imsm_map(dev, second_map);
-
switch (get_imsm_raid_level(map)) {
case 0:
return map->num_members;
}
}
+static unsigned long long calc_component_size(struct imsm_map *map,
+ struct imsm_dev *dev)
+{
+ unsigned long long component_size;
+ unsigned long long dev_size = imsm_dev_size(dev);
+ unsigned long long calc_dev_size = 0;
+ unsigned int member_disks = imsm_num_data_members(map);
+
+ if (member_disks == 0)
+ return 0;
+
+ component_size = per_dev_array_size(map);
+ calc_dev_size = component_size * member_disks;
+
+ /* Component size is rounded to 1MB so difference between size from
+ * metadata and size calculated from num_data_stripes equals up to
+ * 2048 blocks per each device. If the difference is higher it means
+ * that array size was expanded and num_data_stripes was not updated.
+ */
+ if ((unsigned int)abs(calc_dev_size - dev_size) >
+ (1 << SECT_PER_MB_SHIFT) * member_disks) {
+ component_size = dev_size / member_disks;
+ dprintf("Invalid num_data_stripes in metadata; expected=%llu, found=%llu\n",
+ component_size / map->blocks_per_strip,
+ num_data_stripes(map));
+ }
+
+ return component_size;
+}
+
static __u32 parity_segment_depth(struct imsm_dev *dev)
{
struct imsm_map *map = get_imsm_map(dev, MAP_0);
*/
stripes_per_unit = num_stripes_per_unit_resync(dev);
migr_chunk = migr_strip_blocks_resync(dev);
- disks = imsm_num_data_members(dev, MAP_0);
+ disks = imsm_num_data_members(map);
blocks_per_unit = stripes_per_unit * migr_chunk * disks;
stripe = __le16_to_cpu(map->blocks_per_strip) * disks;
segment = blocks_per_unit / stripe;
}
return rv;
}
-static unsigned long long imsm_component_size_aligment_check(int level,
+static unsigned long long imsm_component_size_alignment_check(int level,
int chunk_size,
unsigned int sector_size,
unsigned long long component_size)
{
- unsigned int component_size_alligment;
+ unsigned int component_size_alignment;
- /* check component size aligment
+ /* check component size alignment
*/
- component_size_alligment = component_size % (chunk_size/sector_size);
+ component_size_alignment = component_size % (chunk_size/sector_size);
- dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alligment = %u\n",
+ dprintf("(Level: %i, chunk_size = %i, component_size = %llu), component_size_alignment = %u\n",
level, chunk_size, component_size,
- component_size_alligment);
+ component_size_alignment);
- if (component_size_alligment && (level != 1) && (level != UnSet)) {
- dprintf("imsm: reported component size alligned from %llu ",
+ if (component_size_alignment && (level != 1) && (level != UnSet)) {
+ dprintf("imsm: reported component size aligned from %llu ",
component_size);
- component_size -= component_size_alligment;
+ component_size -= component_size_alignment;
dprintf_cont("to %llu (%i).\n",
- component_size, component_size_alligment);
+ component_size, component_size_alignment);
}
return component_size;
info->array.chunk_size =
__le16_to_cpu(map_to_analyse->blocks_per_strip) << 9;
info->array.state = !(dev->vol.dirty & RAIDVOL_DIRTY);
- info->custom_array_size = __le32_to_cpu(dev->size_high);
- info->custom_array_size <<= 32;
- info->custom_array_size |= __le32_to_cpu(dev->size_low);
+ info->custom_array_size = imsm_dev_size(dev);
info->recovery_blocked = imsm_reshape_blocks_arrays_changes(st->sb);
if (is_gen_migration(dev)) {
}
info->data_offset = pba_of_lba0(map_to_analyse);
-
- if (info->array.level == 5) {
- info->component_size = num_data_stripes(map_to_analyse) *
- map_to_analyse->blocks_per_strip;
- } else {
- info->component_size = blocks_per_member(map_to_analyse);
- }
-
- info->component_size = imsm_component_size_aligment_check(
+ info->component_size = calc_component_size(map, dev);
+ info->component_size = imsm_component_size_alignment_check(
info->array.level,
info->array.chunk_size,
super->sector_size,
(unsigned long long)blocks_per_unit,
info->reshape_progress);
- used_disks = imsm_num_data_members(dev, MAP_1);
+ used_disks = imsm_num_data_members(prev_map);
if (used_disks > 0) {
- array_blocks = blocks_per_member(map) *
+ array_blocks = per_dev_array_size(map) *
used_disks;
info->custom_array_size =
round_size_to_mb(array_blocks,
struct imsm_map *map;
int idx = mpb->num_raid_devs;
int i;
+ int namelen;
unsigned long long array_blocks;
size_t size_old, size_new;
unsigned long long num_data_stripes;
return 0;
dv = xmalloc(sizeof(*dv));
dev = xcalloc(1, sizeof(*dev) + sizeof(__u32) * (info->raid_disks - 1));
- strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN);
+ /*
+ * Explicitly allow truncating to not confuse gcc's
+ * -Werror=stringop-truncation
+ */
+ namelen = min((int) strlen(name), MAX_RAID_SERIAL_LEN);
+ memcpy(dev->volume, name, namelen);
array_blocks = calc_array_size(info->level, info->raid_disks,
info->layout, info->chunk_size,
s->size * BLOCKS_PER_KB);
array_blocks = round_size_to_mb(array_blocks, data_disks);
size_per_member = array_blocks / data_disks;
- dev->size_low = __cpu_to_le32((__u32) array_blocks);
- dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32));
+ set_imsm_dev_size(dev, array_blocks);
dev->status = (DEV_READ_COALESCING | DEV_WRITE_COALESCING);
vol = &dev->vol;
vol->migr_state = 0;
vol->curr_migr_unit = 0;
map = get_imsm_map(dev, MAP_0);
set_pba_of_lba0(map, super->create_offset);
- set_blocks_per_member(map, info_to_blocks_per_member(info,
- size_per_member /
- BLOCKS_PER_KB));
map->blocks_per_strip = __cpu_to_le16(info_to_blocks_per_strip(info));
map->failed_disk_num = ~0;
if (info->level > 0)
num_data_stripes /= map->num_domains;
set_num_data_stripes(map, num_data_stripes);
+ size_per_member += NUM_BLOCKS_DIRTY_STRIPE_REGION;
+ set_blocks_per_member(map, info_to_blocks_per_member(info,
+ size_per_member /
+ BLOCKS_PER_KB));
+
map->num_members = info->raid_disks;
for (i = 0; i < map->num_members; i++) {
/* initialized in add_to_super */
return 1;
}
+ if (mpb->num_disks == 0)
+ if (!get_dev_sector_size(dl->fd, dl->devname,
+ &super->sector_size))
+ return 1;
+
if (!drive_validate_sector_size(super, dl)) {
pr_err("Combining drives of different sector size in one volume is not allowed\n");
return 1;
mpb = super->anchor;
if (!validate_geometry_imsm_orom(super, level, layout, raiddisks, chunk, size, verbose)) {
- pr_err("RAID gemetry validation failed. Cannot proceed with the action(s).\n");
+ pr_err("RAID geometry validation failed. Cannot proceed with the action(s).\n");
return 0;
}
if (!dev) {
verbose);
}
+ if (size && ((size < 1024) || (*chunk != UnSet &&
+ size < (unsigned long long) *chunk))) {
+ pr_err("Given size must be greater than 1M and chunk size.\n");
+ /* Depends on algorithm in Create.c :
+ * if container was given (dev == NULL) return -1,
+ * if block device was given ( dev != NULL) return 0.
+ */
+ return dev ? -1 : 0;
+ }
+
if (!dev) {
if (st->sb) {
struct intel_super *super = st->sb;
append_metadata_update(st, u, sizeof(*u));
} else {
struct imsm_dev *dev;
- int i;
+ int i, namelen;
dev = get_imsm_dev(super, vol);
- strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN);
- dev->volume[MAX_RAID_SERIAL_LEN-1] = '\0';
+ memset(dev->volume, '\0', MAX_RAID_SERIAL_LEN);
+ namelen = min((int)strlen(name), MAX_RAID_SERIAL_LEN);
+ memcpy(dev->volume, name, namelen);
for (i = 0; i < mpb->num_raid_devs; i++) {
dev = get_imsm_dev(super, i);
handle_missing(super, dev);
level, /* RAID level */
imsm_level_to_layout(level),
map->num_members, /* raid disks */
- &chunk, join_u32(dev->size_low, dev->size_high),
+ &chunk, imsm_dev_size(dev),
1 /* verbose */)) {
pr_err("IMSM RAID geometry validation failed. Array %s activation is blocked.\n",
dev->volume);
info_d->events = __le32_to_cpu(mpb->generation_num);
info_d->data_offset = pba_of_lba0(map);
+ info_d->component_size = calc_component_size(map, dev);
if (map->raid_level == 5) {
- info_d->component_size =
- num_data_stripes(map) *
- map->blocks_per_strip;
info_d->ppl_sector = this->ppl_sector;
info_d->ppl_size = this->ppl_size;
if (this->consistency_policy == CONSISTENCY_POLICY_PPL &&
recovery_start == 0)
this->resync_start = 0;
- } else {
- info_d->component_size = blocks_per_member(map);
}
info_d->bb.supported = 1;
strcat(buf, ":0");
if ((len = strlen(buf)) >= MAX_RAID_SERIAL_LEN)
shift = len - MAX_RAID_SERIAL_LEN + 1;
- strncpy((char *)disk->serial, &buf[shift], MAX_RAID_SERIAL_LEN);
+ memcpy(disk->serial, &buf[shift], len + 1 - shift);
disk->status |= FAILED_DISK;
set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD);
static unsigned long long imsm_set_array_size(struct imsm_dev *dev,
long long new_size)
{
- int used_disks = imsm_num_data_members(dev, MAP_0);
unsigned long long array_blocks;
- struct imsm_map *map;
+ struct imsm_map *map = get_imsm_map(dev, MAP_0);
+ int used_disks = imsm_num_data_members(map);
if (used_disks == 0) {
/* when problems occures
* return current array_blocks value
*/
- array_blocks = __le32_to_cpu(dev->size_high);
- array_blocks = array_blocks << 32;
- array_blocks += __le32_to_cpu(dev->size_low);
+ array_blocks = imsm_dev_size(dev);
return array_blocks;
}
/* set array size in metadata
*/
- if (new_size <= 0) {
+ if (new_size <= 0)
/* OLCE size change is caused by added disks
*/
- map = get_imsm_map(dev, MAP_0);
- array_blocks = blocks_per_member(map) * used_disks;
- } else {
+ array_blocks = per_dev_array_size(map) * used_disks;
+ else
/* Online Volume Size Change
* Using available free space
*/
array_blocks = new_size;
- }
array_blocks = round_size_to_mb(array_blocks, used_disks);
- dev->size_low = __cpu_to_le32((__u32)array_blocks);
- dev->size_high = __cpu_to_le32((__u32)(array_blocks >> 32));
+ set_imsm_dev_size(dev, array_blocks);
return array_blocks;
}
int used_disks;
struct mdinfo *mdi;
- used_disks = imsm_num_data_members(dev, MAP_0);
+ used_disks = imsm_num_data_members(map);
if (used_disks > 0) {
array_blocks =
- blocks_per_member(map) *
+ per_dev_array_size(map) *
used_disks;
array_blocks =
round_size_to_mb(array_blocks,
pos = 0;
array_start = pba_of_lba0(map);
array_end = array_start +
- blocks_per_member(map) - 1;
+ per_dev_array_size(map) - 1;
do {
/* check that we can start at pba_of_lba0 with
- * blocks_per_member of space
+ * num_data_stripes*blocks_per_stripe of space
*/
if (array_start >= pos && array_end < ex[j].start) {
found = 1;
*/
if (u->new_chunksize > 0) {
unsigned long long num_data_stripes;
+ struct imsm_map *dest_map =
+ get_imsm_map(dev, MAP_0);
int used_disks =
- imsm_num_data_members(dev, MAP_0);
+ imsm_num_data_members(dest_map);
if (used_disks == 0)
return ret_val;
map->blocks_per_strip =
__cpu_to_le16(u->new_chunksize * 2);
num_data_stripes =
- (join_u32(dev->size_low, dev->size_high)
- / used_disks);
+ imsm_dev_size(dev) / used_disks;
num_data_stripes /= map->blocks_per_strip;
num_data_stripes /= map->num_domains;
set_num_data_stripes(map, num_data_stripes);
}
+ /* ensure blocks_per_member has valid value
+ */
+ set_blocks_per_member(map,
+ per_dev_array_size(map) +
+ NUM_BLOCKS_DIRTY_STRIPE_REGION);
+
/* add disk
*/
if (u->new_level != 5 || migr_map->raid_level != 0 ||
if (id->index == (unsigned)u->subdev) {
struct imsm_dev *dev = get_imsm_dev(super, u->subdev);
struct imsm_map *map = get_imsm_map(dev, MAP_0);
- int used_disks = imsm_num_data_members(dev, MAP_0);
+ int used_disks = imsm_num_data_members(map);
unsigned long long blocks_per_member;
unsigned long long num_data_stripes;
+ unsigned long long new_size_per_disk;
+
+ if (used_disks == 0)
+ return 0;
/* calculate new size
*/
- blocks_per_member = u->new_size / used_disks;
- num_data_stripes = blocks_per_member /
+ new_size_per_disk = u->new_size / used_disks;
+ blocks_per_member = new_size_per_disk +
+ NUM_BLOCKS_DIRTY_STRIPE_REGION;
+ num_data_stripes = new_size_per_disk /
map->blocks_per_strip;
num_data_stripes /= map->num_domains;
dprintf("(size: %llu, blocks per member: %llu, num_data_stipes: %llu)\n",
- u->new_size, blocks_per_member,
+ u->new_size, new_size_per_disk,
num_data_stripes);
set_blocks_per_member(map, blocks_per_member);
set_num_data_stripes(map, num_data_stripes);
unsigned long long num_data_stripes;
map->num_domains = 1;
- num_data_stripes = blocks_per_member(map);
+ num_data_stripes = imsm_dev_size(dev) / 2;
num_data_stripes /= map->blocks_per_strip;
num_data_stripes /= map->num_domains;
set_num_data_stripes(map, num_data_stripes);
new_map = get_imsm_map(&u->dev, MAP_0);
new_start = pba_of_lba0(new_map);
- new_end = new_start + blocks_per_member(new_map);
+ new_end = new_start + per_dev_array_size(new_map);
inf = get_disk_info(u);
/* handle activate_spare versus create race:
dev = get_imsm_dev(super, i);
map = get_imsm_map(dev, MAP_0);
start = pba_of_lba0(map);
- end = start + blocks_per_member(map);
+ end = start + per_dev_array_size(map);
if ((new_start >= start && new_start <= end) ||
(start >= new_start && start <= new_end))
/* overlap */;
/* sanity check that we are not affecting the uuid of
* an active array
*/
+ memset(name, 0, sizeof(name));
snprintf(name, MAX_RAID_SERIAL_LEN, "%s", (char *) u->name);
name[MAX_RAID_SERIAL_LEN] = '\0';
for (a = st->arrays; a; a = a->next)
break;
}
- snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name);
+ memcpy(dev->volume, name, MAX_RAID_SERIAL_LEN);
super->updates_pending++;
break;
}
return NULL;
get_volume_badblocks(super->bbm_log, ord_to_idx(ord), pba_of_lba0(map),
- blocks_per_member(map), &super->bb);
+ per_dev_array_size(map), &super->bb);
return &super->bb;
}
max(map_dest->blocks_per_strip, map_src->blocks_per_strip);
migr_rec->dest_depth_per_unit *=
max(map_dest->blocks_per_strip, map_src->blocks_per_strip);
- new_data_disks = imsm_num_data_members(dev, MAP_0);
+ new_data_disks = imsm_num_data_members(map_dest);
migr_rec->blocks_per_unit =
__cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks);
migr_rec->dest_depth_per_unit =
int dest_layout = 0;
int dest_chunk;
unsigned long long start;
- int data_disks = imsm_num_data_members(dev, MAP_0);
+ int data_disks = imsm_num_data_members(map_dest);
targets = xmalloc(new_disks * sizeof(int));
int imsm_layout = -1;
int data_disks;
struct imsm_dev *dev;
+ struct imsm_map *map;
struct intel_super *super;
unsigned long long current_size;
unsigned long long free_size;
super = st->sb;
dev = get_imsm_dev(super, super->current_vol);
- data_disks = imsm_num_data_members(dev , MAP_0);
+ map = get_imsm_map(dev, MAP_0);
+ data_disks = imsm_num_data_members(map);
/* compute current size per disk member
*/
current_size = info.custom_array_size / data_disks;
if (geo->size > 0 && geo->size != MAX_SIZE) {
/* align component size
*/
- geo->size = imsm_component_size_aligment_check(
+ geo->size = imsm_component_size_alignment_check(
get_imsm_raid_level(dev->vol.map),
chunk * 1024, super->sector_size,
geo->size * 2);
max_size = free_size + current_size;
/* align component size
*/
- max_size = imsm_component_size_aligment_check(
+ max_size = imsm_component_size_alignment_check(
get_imsm_raid_level(dev->vol.map),
chunk * 1024, super->sector_size,
max_size);
dprintf("for level : %i\n", geo.level);
dprintf("for raid_disks : %i\n", geo.raid_disks);
- if (experimental() == 0)
- return ret_val;
-
if (strcmp(st->container_devnm, st->devnm) == 0) {
/* On container level we can only increase number of devices. */
dprintf("imsm: info: Container operation\n");
struct intel_dev *dv;
unsigned int sector_size = super->sector_size;
struct imsm_dev *dev = NULL;
- struct imsm_map *map_src;
+ struct imsm_map *map_src, *map_dest;
int migr_vol_qan = 0;
int ndata, odata; /* [bytes] */
int chunk; /* [bytes] */
goto abort;
}
+ map_dest = get_imsm_map(dev, MAP_0);
map_src = get_imsm_map(dev, MAP_1);
if (map_src == NULL)
goto abort;
- ndata = imsm_num_data_members(dev, MAP_0);
- odata = imsm_num_data_members(dev, MAP_1);
+ ndata = imsm_num_data_members(map_dest);
+ odata = imsm_num_data_members(map_src);
chunk = __le16_to_cpu(map_src->blocks_per_strip) * 512;
old_data_stripe_length = odata * chunk;
buf_size = __le32_to_cpu(migr_rec->blocks_per_unit) * 512;
/* extend buffer size for parity disk */
buf_size += __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512;
- /* add space for stripe aligment */
+ /* add space for stripe alignment */
buf_size += old_data_stripe_length;
if (posix_memalign((void **)&buf, MAX_SECTOR_SIZE, buf_size)) {
dprintf("imsm: Cannot allocate checkpoint buffer\n");
projects / thirdparty / mdadm.git / blobdiff