static int _raid_text_import_area_count(const struct dm_config_node *sn,
uint32_t *area_count)
{
uint32_t stripe_count = 0, device_count = 0;
int stripe_count_found, device_count_found;
device_count_found = dm_config_get_uint32(sn, "device_count", &device_count);
stripe_count_found = dm_config_get_uint32(sn, "stripe_count", &stripe_count);
if (!device_count_found && !stripe_count_found) {
log_error("Couldn't read 'device_count' or 'stripe_count' for "
"segment '%s'.", dm_config_parent_name(sn));
return 0;
}
if (device_count_found && stripe_count_found) {
log_error("Only one of 'device_count' and 'stripe_count' allowed for "
"segment '%s'.", dm_config_parent_name(sn));
return 0;
}
*area_count = stripe_count + device_count;
return 1;
}
static int _raid_text_import_area_count(const struct dm_config_node *sn,
uint32_t *area_count)
{
if (!dm_config_get_uint32(sn, "device_count", area_count)) {
log_error("Couldn't read 'device_count' for "
"segment '%s'.", dm_config_parent_name(sn));
return 0;
}
return 1;
}
static int _striped_text_import(struct lv_segment *seg, const struct dm_config_node *sn,
struct dm_hash_table *pv_hash)
{
const struct dm_config_value *cv;
if ((seg->area_count != 1) &&
!dm_config_get_uint32(sn, "stripe_size", &seg->stripe_size)) {
log_error("Couldn't read stripe_size for segment %s "
"of logical volume %s.", dm_config_parent_name(sn), seg->lv->name);
return 0;
}
if (!dm_config_get_list(sn, "stripes", &cv)) {
log_error("Couldn't find stripes array for segment %s "
"of logical volume %s.", dm_config_parent_name(sn), seg->lv->name);
return 0;
}
seg->area_len /= seg->area_count;
return text_import_areas(seg, sn, cv, pv_hash, 0);
}
static int _raid_text_import_areas(struct lv_segment *seg,
const struct dm_config_node *sn,
const struct dm_config_value *cv)
{
unsigned int s;
struct logical_volume *lv;
const char *seg_name = dm_config_parent_name(sn);
if (!seg->area_count) {
log_error("No areas found for segment %s", seg_name);
return 0;
}
for (s = 0; cv && s < seg->area_count; s++, cv = cv->next) {
if (cv->type != DM_CFG_STRING) {
log_error("Bad volume name in areas array for segment %s.", seg_name);
return 0;
}
/* Metadata device comes first. */
if (!(lv = find_lv(seg->lv->vg, cv->v.str))) {
log_error("Couldn't find volume '%s' for segment '%s'.",
cv->v.str ? : "NULL", seg_name);
return 0;
}
if (strstr(lv->name, "_rmeta_")) {
if (!set_lv_segment_area_lv(seg, s, lv, 0, RAID_META))
return_0;
cv = cv->next;
}
if (!cv) {
log_error("Missing data device in areas array for segment %s.", seg_name);
return 0;
}
/* Data device comes second */
if (!(lv = find_lv(seg->lv->vg, cv->v.str))) {
log_error("Couldn't find volume '%s' for segment '%s'.",
cv->v.str ? : "NULL", seg_name);
return 0;
}
