return sector_count(__le32_to_cpu(mpb->mpb_size));
}
-static struct superswitch super_imsm_volume;
-
/* internal representation of IMSM metadata */
struct intel_super {
union {
};
int updates_pending; /* count of pending updates for mdmon */
int creating_imsm; /* flag to indicate container creation */
- int creating_dev; /* index of raid device undergoing creation */
+ int current_vol; /* index of raid device undergoing creation */
struct dl {
struct dl *next;
int index;
return st;
}
-static struct supertype *match_metadata_desc_imsm_volume(char *arg)
-{
- struct supertype *st;
-
- if (strcmp(arg, "imsm/volume") != 0 &&
- strcmp(arg, "raid") != 0 &&
- strcmp(arg, "default") != 0
- )
- return NULL;
-
- st = malloc(sizeof(*st));
- memset(st, 0, sizeof(*st));
- st->ss = &super_imsm_volume;
- st->max_devs = IMSM_MAX_DEVICES;
- st->minor_version = 0;
- st->sb = NULL;
- return st;
-}
-
static __u8 *get_imsm_version(struct imsm_super *mpb)
{
return &mpb->sig[MPB_SIG_LEN];
return -1;
}
+static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info)
+{
+ struct intel_super *super = st->sb;
+ struct imsm_super *mpb = super->mpb;
+ struct imsm_dev *dev = get_imsm_dev(mpb, super->current_vol);
+ struct imsm_map *map = &dev->vol.map[0];
+
+ info->container_member = super->current_vol;
+ info->array.raid_disks = map->num_members;
+ info->array.level = get_imsm_raid_level(map);
+ info->array.layout = imsm_level_to_layout(info->array.level);
+ info->array.md_minor = -1;
+ info->array.ctime = 0;
+ info->array.utime = 0;
+ info->array.chunk_size = __le16_to_cpu(map->blocks_per_strip * 512);
+
+ info->data_offset = __le32_to_cpu(map->pba_of_lba0);
+ info->component_size = __le32_to_cpu(map->blocks_per_member);
+
+ info->disk.major = 0;
+ info->disk.minor = 0;
+
+ sprintf(info->text_version, "/%s/%d",
+ devnum2devname(st->container_dev),
+ info->container_member);
+}
+
+
static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info)
{
struct intel_super *super = st->sb;
struct imsm_super *mpb = super->mpb;
struct imsm_disk *disk;
- int sect = mpb_sectors(mpb);
__u32 s;
+ if (super->current_vol >= 0) {
+ getinfo_super_imsm_volume(st, info);
+ return;
+ }
info->array.raid_disks = mpb->num_disks;
info->array.level = LEVEL_CONTAINER;
info->array.layout = 0;
info->disk.number = -1;
info->disk.state = 0;
- info->data_offset = __le32_to_cpu(get_imsm_disk(super->mpb,
- super->disks->index)
- ->total_blocks) - (2 + sect - 1);
- info->component_size = sect;
-
if (super->disks) {
+ disk = get_imsm_disk(mpb, super->disks->index);
info->disk.number = super->disks->index;
info->disk.raid_disk = super->disks->index;
- disk = get_imsm_disk(mpb, super->disks->index);
+ info->data_offset = __le32_to_cpu(disk->total_blocks) -
+ (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS);
+ info->component_size = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS;
s = __le32_to_cpu(disk->status);
info->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0;
info->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0;
}
}
-static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info)
-{
- struct intel_super *super = st->sb;
- struct imsm_super *mpb = super->mpb;
- struct imsm_dev *dev = get_imsm_dev(mpb, info->container_member);
- struct imsm_map *map = &dev->vol.map[0];
-
- info->array.raid_disks = map->num_members;
- info->array.level = get_imsm_raid_level(map);
- info->array.layout = imsm_level_to_layout(info->array.level);
- info->array.md_minor = -1;
- info->array.ctime = 0;
- info->array.utime = 0;
- info->array.chunk_size = __le16_to_cpu(map->blocks_per_strip * 512);
-
- info->data_offset = __le32_to_cpu(map->pba_of_lba0);
- info->component_size = __le32_to_cpu(map->blocks_per_member);
-
- info->disk.major = 0;
- info->disk.minor = 0;
-
- sprintf(info->text_version, "/%s/%d",
- devnum2devname(st->container_dev),
- info->container_member);
-}
-
static int update_super_imsm(struct supertype *st, struct mdinfo *info,
char *update, char *devname, int verbose,
int uuid_set, char *homehost)
struct imsm_super *anchor;
__u32 check_sum;
- memset(super, 0, sizeof(*super));
get_dev_size(fd, NULL, &dsize);
if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) {
return load_imsm_disk(fd, super, devname, 0);
}
-struct superswitch super_imsm_container;
-
static void free_imsm_disks(struct intel_super *super)
{
while (super->disks) {
if (super) {
memset(super, 0, sizeof(*super));
super->creating_imsm = creating_imsm;
- super->creating_dev = -1;
+ super->current_vol = -1;
}
return super;
}
if (st->subarray[0]) {
- /* FIXME */
+ if (atoi(st->subarray) <= super->mpb->num_raid_devs)
+ super->current_vol = atoi(st->subarray);
+ else
+ return 1;
}
*sbp = super;
if (st->ss == NULL) {
- st->ss = &super_imsm_container;
+ st->ss = &super_imsm;
st->minor_version = 0;
st->max_devs = IMSM_MAX_DEVICES;
st->container_dev = fd2devnum(fd);
return 0;
}
-static int init_zero_imsm(struct supertype *st, mdu_array_info_t *info,
- unsigned long long size, char *name,
- char *homehost, int *uuid)
-{
- st->sb = NULL;
- return 0;
-}
-
-static int init_super_imsm(struct supertype *st, mdu_array_info_t *info,
- unsigned long long size, char *name,
- char *homehost, int *uuid)
-{
- /* This is primarily called by Create when creating a new array.
- * We will then get add_to_super called for each component, and then
- * write_init_super called to write it out to each device.
- * For IMSM, Create can create on fresh devices or on a pre-existing
- * array.
- * To create on a pre-existing array a different method will be called.
- * This one is just for fresh drives.
- */
- struct intel_super *super;
- struct imsm_super *mpb;
- size_t mpb_size;
-
- super = alloc_super(1);
- if (!super)
- return 0;
- mpb_size = disks_to_mpb_size(info->nr_disks);
- posix_memalign((void**)&mpb, 512, mpb_size);
- if (!mpb) {
- free(super);
- return 0;
- }
- memset(mpb, 0, mpb_size);
-
- memcpy(mpb->sig, MPB_SIGNATURE, strlen(MPB_SIGNATURE));
- memcpy(mpb->sig + strlen(MPB_SIGNATURE), MPB_VERSION_RAID5,
- strlen(MPB_VERSION_RAID5));
- mpb->mpb_size = mpb_size;
-
- super->mpb = mpb;
- st->sb = super;
- return 1;
-}
-
static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info,
unsigned long long size, char *name,
char *homehost, int *uuid)
return 0;
}
- super->creating_dev = idx;
+ super->current_vol = idx;
+ sprintf(st->subarray, "%d", idx);
mpb->num_raid_devs++;
dev = get_imsm_dev(mpb, idx);
strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN);
return 1;
}
+static int init_super_imsm(struct supertype *st, mdu_array_info_t *info,
+ unsigned long long size, char *name,
+ char *homehost, int *uuid)
+{
+ /* This is primarily called by Create when creating a new array.
+ * We will then get add_to_super called for each component, and then
+ * write_init_super called to write it out to each device.
+ * For IMSM, Create can create on fresh devices or on a pre-existing
+ * array.
+ * To create on a pre-existing array a different method will be called.
+ * This one is just for fresh drives.
+ */
+ struct intel_super *super;
+ struct imsm_super *mpb;
+ size_t mpb_size;
+
+ if (!info) {
+ st->sb = NULL;
+ return 0;
+ }
+ if (st->sb)
+ return init_super_imsm_volume(st, info, size, name, homehost,
+ uuid);
+
+ super = alloc_super(1);
+ if (!super)
+ return 0;
+ mpb_size = disks_to_mpb_size(info->nr_disks);
+ if (posix_memalign((void**)&mpb, 512, mpb_size) != 0) {
+ free(super);
+ return 0;
+ }
+ memset(mpb, 0, mpb_size);
+
+ memcpy(mpb->sig, MPB_SIGNATURE, strlen(MPB_SIGNATURE));
+ memcpy(mpb->sig + strlen(MPB_SIGNATURE), MPB_VERSION_RAID5,
+ strlen(MPB_VERSION_RAID5));
+ mpb->mpb_size = mpb_size;
+
+ super->mpb = mpb;
+ st->sb = super;
+ return 1;
+}
+
+static void add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk,
+ int fd, char *devname)
+{
+ struct intel_super *super = st->sb;
+ struct imsm_super *mpb = super->mpb;
+ struct dl *dl;
+ struct imsm_dev *dev;
+ struct imsm_map *map;
+ struct imsm_disk *disk;
+ __u32 status;
+
+ dev = get_imsm_dev(mpb, super->current_vol);
+ map = &dev->vol.map[0];
+
+ for (dl = super->disks; dl ; dl = dl->next)
+ if (dl->major == dk->major &&
+ dl->minor == dk->minor)
+ break;
+ if (!dl || ! (dk->state & (1<<MD_DISK_SYNC)))
+ return;
+
+ map->disk_ord_tbl[dk->number] = __cpu_to_le32(dl->index);
+
+ disk = get_imsm_disk(mpb, dl->index);
+ status = CONFIGURED_DISK | USABLE_DISK;
+ disk->status = __cpu_to_le32(status);
+}
+
static void add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk,
int fd, char *devname)
{
int rv;
struct stat stb;
+ if (super->current_vol >= 0) {
+ add_to_super_imsm_volume(st, dk, fd, devname);
+ return;
+ }
+
fstat(fd, &stb);
dd = malloc(sizeof(*dd));
if (!dd) {
super->disks = dd;
}
-static void add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk,
- int fd, char *devname)
-{
- struct intel_super *super = st->sb;
- struct imsm_super *mpb = super->mpb;
- struct dl *dl;
- struct imsm_dev *dev;
- struct imsm_map *map;
- struct imsm_disk *disk;
- __u32 status;
-
- if (super->creating_dev == -1) {
- fprintf(stderr, Name ": no active raid device\n");
- abort();
- }
-
- dev = get_imsm_dev(mpb, super->creating_dev);
- map = &dev->vol.map[0];
-
- for (dl = super->disks; dl ; dl = dl->next)
- if (dl->major == dk->major &&
- dl->minor == dk->minor)
- break;
- if (!dl || ! (dk->state & (1<<MD_DISK_SYNC)))
- return;
-
- map->disk_ord_tbl[dk->number] = __cpu_to_le32(dl->index);
-
- disk = get_imsm_disk(mpb, dl->index);
- status = CONFIGURED_DISK | USABLE_DISK;
- disk->status = __cpu_to_le32(status);
-}
-
static int store_imsm_mpb(int fd, struct intel_super *super);
static int write_super_imsm(struct intel_super *super, int doclose)
return 0;
}
-static int validate_geometry_imsm(struct supertype *st, int level, int layout,
- int raiddisks, int chunk, unsigned long long size,
- char *dev, unsigned long long *freesize,
- int verbose)
-{
- int fd, cfd;
- struct mdinfo *sra;
-
- /* if given unused devices create a container
- * if given given devices in a container create a member volume
- */
- if (level == LEVEL_CONTAINER) {
- st->ss = &super_imsm_container;
- if (dev) {
- /* validate the container, dev == NULL */
- int rv = st->ss->validate_geometry(st, level, layout,
- raiddisks, chunk,
- size,
- NULL, freesize,
- verbose);
- if (rv)
- return rv;
- }
- return st->ss->validate_geometry(st, level, layout, raiddisks,
- chunk, size, dev, freesize,
- verbose);
- }
-
- if (st->sb) {
- /* creating in a given container */
- st->ss = &super_imsm_volume;
- if (dev) {
- int rv = st->ss->validate_geometry(st, level, layout,
- raiddisks, chunk,
- size,
- NULL, freesize,
- verbose);
- if (rv)
- return rv;
- }
- return st->ss->validate_geometry(st, level, layout, raiddisks,
- chunk, size, dev, freesize,
- verbose);
- }
-
- /* limit creation to the following levels */
- if (!dev)
- switch (level) {
- case 0:
- case 1:
- case 10:
- case 5:
- break;
- default:
- return 1;
- }
-
- /* This device needs to be a device in an 'imsm' container */
- fd = open(dev, O_RDONLY|O_EXCL, 0);
- if (fd >= 0) {
- if (verbose)
- fprintf(stderr,
- Name ": imsm: Cannot create this array on "
- "device %s\n", dev);
- close(fd);
- return 0;
- }
- if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) {
- if (verbose)
- fprintf(stderr, Name ": imsm: Cannot open %s: %s\n",
- dev, strerror(errno));
- return 0;
- }
- /* Well, it is in use by someone, maybe an 'imsm' container. */
- cfd = open_container(fd);
- if (cfd < 0) {
- close(fd);
- if (verbose)
- fprintf(stderr, Name ": imsm: Cannot use %s: %s\n",
- dev, strerror(EBUSY));
- return 0;
- }
- sra = sysfs_read(cfd, 0, GET_VERSION);
- close(fd);
- if (sra && sra->array.major_version == -1 &&
- strcmp(sra->text_version, "imsm") == 0) {
- /* This is a member of a imsm container. Load the container
- * and try to create a volume
- */
- struct intel_super *super;
- st->ss = &super_imsm_volume;
- if (load_super_imsm_all(st, cfd, (void **) &super, NULL, 1) == 0) {
- st->sb = super;
- st->container_dev = fd2devnum(cfd);
- close(cfd);
- return st->ss->validate_geometry(st, level, layout,
- raiddisks, chunk, size,
- dev, freesize,
- verbose);
- }
- close(cfd);
- } else /* may belong to another container */
- return 0;
-
- return 1;
-}
-
static int validate_geometry_imsm_container(struct supertype *st, int level,
int layout, int raiddisks, int chunk,
unsigned long long size, char *dev,
for (dl = super->disks; dl ; dl = dl->next) {
int found = 0;
+ pos = 0;
i = 0;
e = get_extents(super, dl);
if (!e) continue;
return 1;
}
+static int validate_geometry_imsm(struct supertype *st, int level, int layout,
+ int raiddisks, int chunk, unsigned long long size,
+ char *dev, unsigned long long *freesize,
+ int verbose)
+{
+ int fd, cfd;
+ struct mdinfo *sra;
+
+ /* if given unused devices create a container
+ * if given given devices in a container create a member volume
+ */
+ if (level == LEVEL_CONTAINER) {
+ /* Must be a fresh device to add to a container */
+ return validate_geometry_imsm_container(st, level, layout,
+ raiddisks, chunk, size,
+ dev, freesize,
+ verbose);
+ }
+
+ if (st->sb) {
+ /* creating in a given container */
+ return validate_geometry_imsm_volume(st, level, layout,
+ raiddisks, chunk, size,
+ dev, freesize, verbose);
+ }
+
+ /* limit creation to the following levels */
+ if (!dev)
+ switch (level) {
+ case 0:
+ case 1:
+ case 10:
+ case 5:
+ break;
+ default:
+ return 1;
+ }
+
+ /* This device needs to be a device in an 'imsm' container */
+ fd = open(dev, O_RDONLY|O_EXCL, 0);
+ if (fd >= 0) {
+ if (verbose)
+ fprintf(stderr,
+ Name ": Cannot create this array on device %s\n",
+ dev);
+ close(fd);
+ return 0;
+ }
+ if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) {
+ if (verbose)
+ fprintf(stderr, Name ": Cannot open %s: %s\n",
+ dev, strerror(errno));
+ return 0;
+ }
+ /* Well, it is in use by someone, maybe an 'imsm' container. */
+ cfd = open_container(fd);
+ if (cfd < 0) {
+ close(fd);
+ if (verbose)
+ fprintf(stderr, Name ": Cannot use %s: It is busy\n",
+ dev);
+ return 0;
+ }
+ sra = sysfs_read(cfd, 0, GET_VERSION);
+ close(fd);
+ if (sra && sra->array.major_version == -1 &&
+ strcmp(sra->text_version, "imsm") == 0) {
+ /* This is a member of a imsm container. Load the container
+ * and try to create a volume
+ */
+ struct intel_super *super;
+
+ if (load_super_imsm_all(st, cfd, (void **) &super, NULL, 1) == 0) {
+ st->sb = super;
+ st->container_dev = fd2devnum(cfd);
+ close(cfd);
+ return validate_geometry_imsm_volume(st, level, layout,
+ raiddisks, chunk,
+ size, dev,
+ freesize, verbose);
+ }
+ close(cfd);
+ } else /* may belong to another container */
+ return 0;
+
+ return 1;
+}
+
static struct mdinfo *container_content_imsm(struct supertype *st)
{
/* Given a container loaded by load_super_imsm_all,
.brief_examine_super = brief_examine_super_imsm,
.detail_super = detail_super_imsm,
.brief_detail_super = brief_detail_super_imsm,
+ .write_init_super = write_init_super_imsm,
#endif
.match_home = match_home_imsm,
.uuid_from_super= uuid_from_super_imsm,
.compare_super = compare_super_imsm,
.load_super = load_super_imsm,
- .init_super = init_zero_imsm,
+ .init_super = init_super_imsm,
+ .add_to_super = add_to_super_imsm,
.store_super = store_zero_imsm,
.free_super = free_super_imsm,
.match_metadata_desc = match_metadata_desc_imsm,
+ .container_content = container_content_imsm,
.validate_geometry = validate_geometry_imsm,
.external = 1,
.set_disk = imsm_set_disk,
.sync_metadata = imsm_sync_metadata,
};
-
-/* super_imsm_container is set by validate_geometry_imsm when given a
- * device that is not part of any array
- */
-struct superswitch super_imsm_container = {
-
- .validate_geometry = validate_geometry_imsm_container,
- .init_super = init_super_imsm,
- .add_to_super = add_to_super_imsm,
- .write_init_super = write_init_super_imsm,
- .getinfo_super = getinfo_super_imsm,
- .load_super = load_super_imsm,
-
-#ifndef MDASSEMBLE
- .examine_super = examine_super_imsm,
- .brief_examine_super = brief_examine_super_imsm,
- .detail_super = detail_super_imsm,
- .brief_detail_super = brief_detail_super_imsm,
-#endif
-
- .free_super = free_super_imsm,
-
- .container_content = container_content_imsm,
-
- .external = 1,
-};
-
-static struct superswitch super_imsm_volume = {
- .update_super = update_super_imsm,
- .init_super = init_super_imsm_volume,
- .add_to_super = add_to_super_imsm_volume,
- .getinfo_super = getinfo_super_imsm_volume,
- .write_init_super = write_init_super_imsm,
-
- .load_super = load_super_imsm,
- .free_super = free_super_imsm,
- .match_metadata_desc = match_metadata_desc_imsm_volume,
-
-
- .validate_geometry = validate_geometry_imsm_volume,
- .external = 2,
-};
projects / thirdparty / mdadm.git / commitdiff
