static unsigned int sector_count(__u32 bytes)
{
- return ((bytes + (512-1)) & (~(512-1))) / 512;
+ return ROUND_UP(bytes, 512) / 512;
}
static unsigned int mpb_sectors(struct imsm_super *mpb)
void *migr_rec_buf; /* buffer for I/O operations */
struct migr_record *migr_rec; /* migration record */
};
+ int clean_migration_record_by_mdmon; /* when reshape is switched to next
+ array, it indicates that mdmon is allowed to clean migration
+ record */
size_t len; /* size of the 'buf' allocation */
void *next_buf; /* for realloc'ing buf from the manager */
size_t next_len;
enough = 0;
else /* we're normal, or already degraded */
enough = 1;
-
+ if (is_gen_migration(dev) && missing) {
+ /* during general migration we need all disks
+ * that process is running on.
+ * No new missing disk is allowed.
+ */
+ max_enough = -1;
+ enough = -1;
+ /* no more checks necessary
+ */
+ break;
+ }
/* in the missing/failed disk case check to see
* if at least one array is runnable
*/
len_migr = sizeof_imsm_dev(dev_iter, 1);
if (len_migr > len)
space_needed += len_migr - len;
-
+
dv = malloc(sizeof(*dv));
if (!dv)
return 1;
super->buf = buf;
super->len = len;
}
-
+
return 0;
}
free(super->buf);
return 2;
}
+ super->clean_migration_record_by_mdmon = 0;
if (!sectors) {
check_sum = __gen_imsm_checksum(super->anchor);
struct md_list *tmpdev;
int err = 0;
int i = 0;
- int lmax = 0;
for (i = 0, tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) {
if (tmpdev->used != 1)
continue;
if (tmpdev->container == 1) {
+ int lmax = 0;
int fd = dev_open(tmpdev->devname, O_RDONLY|O_EXCL);
if (fd < 0) {
fprintf(stderr, Name ": cannot open device %s: %s\n",
sum = __gen_imsm_checksum(mpb);
mpb->check_sum = __cpu_to_le32(sum);
+ if (super->clean_migration_record_by_mdmon) {
+ clear_migration_record = 1;
+ super->clean_migration_record_by_mdmon = 0;
+ }
if (clear_migration_record)
memset(super->migr_rec_buf, 0, MIGR_REC_BUF_SIZE);
for (d = super->disks; d ; d = d->next) {
if (d->index < 0 || is_failed(&d->disk))
continue;
- if (store_imsm_mpb(d->fd, mpb))
- fprintf(stderr, "%s: failed for device %d:%d %s\n",
- __func__, d->major, d->minor, strerror(errno));
+
if (clear_migration_record) {
unsigned long long dsize;
perror("Write migr_rec failed");
}
}
+
+ if (store_imsm_mpb(d->fd, mpb))
+ fprintf(stderr,
+ "%s: failed for device %d:%d (fd: %d)%s\n",
+ __func__, d->major, d->minor,
+ d->fd, strerror(errno));
+
if (doclose) {
close(d->fd);
d->fd = -1;
return 0;
}
+
+static int
+active_arrays_by_format(char *name, char* hba, struct md_list **devlist,
+ int dpa, int verbose)
+{
+ struct mdstat_ent *mdstat = mdstat_read(0, 0);
+ struct mdstat_ent *memb = NULL;
+ int count = 0;
+ int num = 0;
+ struct md_list *dv = NULL;
+ int found;
+
+ for (memb = mdstat ; memb ; memb = memb->next) {
+ if (memb->metadata_version &&
+ (strncmp(memb->metadata_version, "external:", 9) == 0) &&
+ (strcmp(&memb->metadata_version[9], name) == 0) &&
+ !is_subarray(memb->metadata_version+9) &&
+ memb->members) {
+ struct dev_member *dev = memb->members;
+ int fd = -1;
+ while(dev && (fd < 0)) {
+ char *path = malloc(strlen(dev->name) + strlen("/dev/") + 1);
+ if (path) {
+ num = sprintf(path, "%s%s", "/dev/", dev->name);
+ if (num > 0)
+ fd = open(path, O_RDONLY, 0);
+ if ((num <= 0) || (fd < 0)) {
+ pr_vrb(": Cannot open %s: %s\n",
+ dev->name, strerror(errno));
+ }
+ free(path);
+ }
+ dev = dev->next;
+ }
+ found = 0;
+ if ((fd >= 0) && disk_attached_to_hba(fd, hba)) {
+ struct mdstat_ent *vol;
+ for (vol = mdstat ; vol ; vol = vol->next) {
+ if ((vol->active > 0) &&
+ vol->metadata_version &&
+ is_container_member(vol, memb->dev)) {
+ found++;
+ count++;
+ }
+ }
+ if (*devlist && (found < dpa)) {
+ dv = calloc(1, sizeof(*dv));
+ if (dv == NULL)
+ fprintf(stderr, Name ": calloc failed\n");
+ else {
+ dv->devname = malloc(strlen(memb->dev) + strlen("/dev/") + 1);
+ if (dv->devname != NULL) {
+ sprintf(dv->devname, "%s%s", "/dev/", memb->dev);
+ dv->found = found;
+ dv->used = 0;
+ dv->next = *devlist;
+ *devlist = dv;
+ } else
+ free(dv);
+ }
+ }
+ }
+ if (fd >= 0)
+ close(fd);
+ }
+ }
+ free_mdstat(mdstat);
+ return count;
+}
+
+#ifdef DEBUG_LOOP
+static struct md_list*
+get_loop_devices(void)
+{
+ int i;
+ struct md_list *devlist = NULL;
+ struct md_list *dv = NULL;
+
+ for(i = 0; i < 12; i++) {
+ dv = calloc(1, sizeof(*dv));
+ if (dv == NULL) {
+ fprintf(stderr, Name ": calloc failed\n");
+ break;
+ }
+ dv->devname = malloc(40);
+ if (dv->devname == NULL) {
+ fprintf(stderr, Name ": malloc failed\n");
+ free(dv);
+ break;
+ }
+ sprintf(dv->devname, "/dev/loop%d", i);
+ dv->next = devlist;
+ devlist = dv;
+ }
+ return devlist;
+}
+#endif
+
+static struct md_list*
+get_devices(const char *hba_path)
+{
+ struct md_list *devlist = NULL;
+ struct md_list *dv = NULL;
+ struct dirent *ent;
+ DIR *dir;
+ int err = 0;
+
+#if DEBUG_LOOP
+ devlist = get_loop_devices();
+ return devlist;
+#endif
+ /* scroll through /sys/dev/block looking for devices attached to
+ * this hba
+ */
+ dir = opendir("/sys/dev/block");
+ for (ent = dir ? readdir(dir) : NULL; ent; ent = readdir(dir)) {
+ int fd;
+ char buf[1024];
+ int major, minor;
+ char *path = NULL;
+ if (sscanf(ent->d_name, "%d:%d", &major, &minor) != 2)
+ continue;
+ path = devt_to_devpath(makedev(major, minor));
+ if (!path)
+ continue;
+ if (!path_attached_to_hba(path, hba_path)) {
+ free(path);
+ path = NULL;
+ continue;
+ }
+ free(path);
+ path = NULL;
+ fd = dev_open(ent->d_name, O_RDONLY);
+ if (fd >= 0) {
+ fd2devname(fd, buf);
+ close(fd);
+ } else {
+ fprintf(stderr, Name ": cannot open device: %s\n",
+ ent->d_name);
+ continue;
+ }
+
+
+ dv = calloc(1, sizeof(*dv));
+ if (dv == NULL) {
+ fprintf(stderr, Name ": malloc failed\n");
+ err = 1;
+ break;
+ }
+ dv->devname = strdup(buf);
+ if (dv->devname == NULL) {
+ fprintf(stderr, Name ": malloc failed\n");
+ err = 1;
+ free(dv);
+ break;
+ }
+ dv->next = devlist;
+ devlist = dv;
+ }
+ if (err) {
+ while(devlist) {
+ dv = devlist;
+ devlist = devlist->next;
+ free(dv->devname);
+ free(dv);
+ }
+ }
+ return devlist;
+}
+
+static int
+count_volumes_list(struct md_list *devlist, char *homehost,
+ int verbose, int *found)
+{
+ struct md_list *tmpdev;
+ int count = 0;
+ struct supertype *st = NULL;
+
+ /* first walk the list of devices to find a consistent set
+ * that match the criterea, if that is possible.
+ * We flag the ones we like with 'used'.
+ */
+ *found = 0;
+ st = match_metadata_desc_imsm("imsm");
+ if (st == NULL) {
+ pr_vrb(": cannot allocate memory for imsm supertype\n");
+ return 0;
+ }
+
+ for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) {
+ char *devname = tmpdev->devname;
+ struct stat stb;
+ struct supertype *tst;
+ int dfd;
+ if (tmpdev->used > 1)
+ continue;
+ tst = dup_super(st);
+ if (tst == NULL) {
+ pr_vrb(": cannot allocate memory for imsm supertype\n");
+ goto err_1;
+ }
+ tmpdev->container = 0;
+ dfd = dev_open(devname, O_RDONLY|O_EXCL);
+ if (dfd < 0) {
+ dprintf(": cannot open device %s: %s\n",
+ devname, strerror(errno));
+ tmpdev->used = 2;
+ } else if (fstat(dfd, &stb)< 0) {
+ /* Impossible! */
+ dprintf(": fstat failed for %s: %s\n",
+ devname, strerror(errno));
+ tmpdev->used = 2;
+ } else if ((stb.st_mode & S_IFMT) != S_IFBLK) {
+ dprintf(": %s is not a block device.\n",
+ devname);
+ tmpdev->used = 2;
+ } else if (must_be_container(dfd)) {
+ struct supertype *cst;
+ cst = super_by_fd(dfd, NULL);
+ if (cst == NULL) {
+ dprintf(": cannot recognize container type %s\n",
+ devname);
+ tmpdev->used = 2;
+ } else if (tst->ss != st->ss) {
+ dprintf(": non-imsm container - ignore it: %s\n",
+ devname);
+ tmpdev->used = 2;
+ } else if (!tst->ss->load_container ||
+ tst->ss->load_container(tst, dfd, NULL))
+ tmpdev->used = 2;
+ else {
+ tmpdev->container = 1;
+ }
+ if (cst)
+ cst->ss->free_super(cst);
+ } else {
+ tmpdev->st_rdev = stb.st_rdev;
+ if (tst->ss->load_super(tst,dfd, NULL)) {
+ dprintf(": no RAID superblock on %s\n",
+ devname);
+ tmpdev->used = 2;
+ } else if (tst->ss->compare_super == NULL) {
+ dprintf(": Cannot assemble %s metadata on %s\n",
+ tst->ss->name, devname);
+ tmpdev->used = 2;
+ }
+ }
+ if (dfd >= 0)
+ close(dfd);
+ if (tmpdev->used == 2 || tmpdev->used == 4) {
+ /* Ignore unrecognised devices during auto-assembly */
+ goto loop;
+ }
+ else {
+ struct mdinfo info;
+ tst->ss->getinfo_super(tst, &info, NULL);
+
+ if (st->minor_version == -1)
+ st->minor_version = tst->minor_version;
+
+ if (memcmp(info.uuid, uuid_zero,
+ sizeof(int[4])) == 0) {
+ /* this is a floating spare. It cannot define
+ * an array unless there are no more arrays of
+ * this type to be found. It can be included
+ * in an array of this type though.
+ */
+ tmpdev->used = 3;
+ goto loop;
+ }
+
+ if (st->ss != tst->ss ||
+ st->minor_version != tst->minor_version ||
+ st->ss->compare_super(st, tst) != 0) {
+ /* Some mismatch. If exactly one array matches this host,
+ * we can resolve on that one.
+ * Or, if we are auto assembling, we just ignore the second
+ * for now.
+ */
+ dprintf(": superblock on %s doesn't match others - assembly aborted\n",
+ devname);
+ goto loop;
+ }
+ tmpdev->used = 1;
+ *found = 1;
+ dprintf("found: devname: %s\n", devname);
+ }
+ loop:
+ if (tst)
+ tst->ss->free_super(tst);
+ }
+ if (*found != 0) {
+ int err;
+ if ((err = load_super_imsm_all(st, -1, &st->sb, NULL, devlist, 0)) == 0) {
+ struct mdinfo *iter, *head = st->ss->container_content(st, NULL);
+ for (iter = head; iter; iter = iter->next) {
+ dprintf("content->text_version: %s vol\n",
+ iter->text_version);
+ if (iter->array.state & (1<<MD_SB_BLOCK_VOLUME)) {
+ /* do not assemble arrays with unsupported
+ configurations */
+ dprintf(": Cannot activate member %s.\n",
+ iter->text_version);
+ } else
+ count++;
+ }
+ sysfs_free(head);
+
+ } else {
+ dprintf(" no valid super block on device list: err: %d %p\n",
+ err, st->sb);
+ }
+ } else {
+ dprintf(" no more devices to examin\n");
+ }
+
+ for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) {
+ if ((tmpdev->used == 1) && (tmpdev->found)) {
+ if (count) {
+ if (count < tmpdev->found)
+ count = 0;
+ else
+ count -= tmpdev->found;
+ }
+ }
+ if (tmpdev->used == 1)
+ tmpdev->used = 4;
+ }
+ err_1:
+ if (st)
+ st->ss->free_super(st);
+ return count;
+}
+
+
+static int
+count_volumes(char *hba, int dpa, int verbose)
+{
+ struct md_list *devlist = NULL;
+ int count = 0;
+ int found = 0;;
+
+ devlist = get_devices(hba);
+ /* if no intel devices return zero volumes */
+ if (devlist == NULL)
+ return 0;
+
+ count = active_arrays_by_format("imsm", hba, &devlist, dpa, verbose);
+ dprintf(" path: %s active arrays: %d\n", hba, count);
+ if (devlist == NULL)
+ return 0;
+ do {
+ found = 0;
+ count += count_volumes_list(devlist,
+ NULL,
+ verbose,
+ &found);
+ dprintf("found %d count: %d\n", found, count);
+ } while (found);
+
+ dprintf("path: %s total number of volumes: %d\n", hba, count);
+
+ while(devlist) {
+ struct md_list *dv = devlist;
+ devlist = devlist->next;
+ free(dv->devname);
+ free(dv);
+ }
+ return count;
+}
+
static int imsm_default_chunk(const struct imsm_orom *orom)
{
/* up to 512 if the plaform supports it, otherwise the platform max.
*freesize = maxsize;
+ if (super->orom) {
+ int count = count_volumes(super->hba->path,
+ super->orom->dpa, verbose);
+ if (super->orom->vphba <= count) {
+ pr_vrb(": platform does not support more then %d raid volumes.\n",
+ super->orom->vphba);
+ return 0;
+ }
+ }
return 1;
}
size /= 2 * chunk;
size *= 2 * chunk;
}
+ maxsize = size;
+ }
+ if (!check_env("IMSM_NO_PLATFORM") &&
+ mpb->num_raid_devs > 0 && size && size != maxsize) {
+ fprintf(stderr, Name ": attempting to create a second "
+ "volume with size less then remaining space. "
+ "Aborting...\n");
+ return 0;
}
-
cnt = 0;
for (dl = super->disks; dl; dl = dl->next)
if (dl->e)
if (!dev) {
if (st->sb) {
+ struct intel_super *super = st->sb;
if (!validate_geometry_imsm_orom(st->sb, level, layout,
raiddisks, chunk,
verbose))
* created. add_to_super and getinfo_super
* detect when autolayout is in progress.
*/
+ /* assuming that freesize is always given when array is
+ created */
+ if (super->orom && freesize) {
+ int count;
+ count = count_volumes(super->hba->path,
+ super->orom->dpa, verbose);
+ if (super->orom->vphba <= count) {
+ pr_vrb(": platform does not support more"
+ "then %d raid volumes.\n",
+ super->orom->vphba);
+ return 0;
+ }
+ }
if (freesize)
return reserve_space(st, raiddisks, size,
chunk?*chunk:0, freesize);
map2->num_members = prev_num_members;
imsm_set_array_size(dev);
+ super->clean_migration_record_by_mdmon = 1;
super->updates_pending++;
}
}
}
return NULL;
}
-
+
mu->space = NULL;
mu->space_list = NULL;
mu->len = sizeof(struct imsm_update_activate_spare) * num_spares;
}
static int apply_update_activate_spare(struct imsm_update_activate_spare *u,
- struct intel_super *super,
+ struct intel_super *super,
struct active_array *active_array)
{
struct imsm_super *mpb = super->anchor;
struct imsm_dev *dev)
{
switch (level) {
+ case 1:
case 10:{
int ret_val = 0;
struct imsm_map *map;
migr_rec->dest_depth_per_unit = GEN_MIGR_AREA_SIZE /
max(map_dest->blocks_per_strip, map_src->blocks_per_strip);
- migr_rec->dest_depth_per_unit *= map_dest->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);
migr_rec->blocks_per_unit =
__cpu_to_le32(migr_rec->dest_depth_per_unit * new_data_disks);
"are present in copy area.\n");
goto abort;
}
+ /* Save checkpoint to update migration record for current
+ * reshape position (in md). It can be farther than current
+ * reshape position in metadata.
+ */
+ if (save_checkpoint_imsm(st, sra, UNIT_SRC_NORMAL) == 1) {
+ /* ignore error == 2, this can mean end of reshape here
+ */
+ dprintf("imsm: Cannot write checkpoint to "
+ "migration record (UNIT_SRC_NORMAL, "
+ "initial save)\n");
+ goto abort;
+ }
}
/* size for data */
projects / thirdparty / mdadm.git / blobdiff