static void _add_lvs_to_lvname_hash(struct dm_list *lvs)
{
struct lvm_lv_list *lvl;
dm_list_iterate_items(lvl, lvs) {
/* Concatenate VG name with LV name */
dm_hash_insert(_lvname_hash, lvm_lv_get_name(lvl->lv), lvl->lv);
}
static int vg_read(vg_t vg, char const *vg_name)
{
struct dm_list *lvs;
struct lvm_lv_list *lvl;
lvm_submit (vg_name, "free", lvm_vg_get_free_size(vg));
lvs = lvm_vg_list_lvs(vg);
dm_list_iterate_items(lvl, lvs) {
lvm_submit(vg_name, lvm_lv_get_name(lvl->lv), lvm_lv_get_size(lvl->lv));
}
static void vg_read(vg_t vg, char const *vg_name)
{
struct dm_list *lvs;
struct lvm_lv_list *lvl;
char const *name;
char const *attrs;
uint64_t size;
lvm_submit (vg_name, "free", lvm_vg_get_free_size(vg));
lvs = lvm_vg_list_lvs(vg);
if (!lvs) {
/* no VGs are defined, which is not an error per se */
return;
}
dm_list_iterate_items(lvl, lvs) {
name = lvm_lv_get_name(lvl->lv);
attrs = get_lv_property_string(lvl->lv, "lv_attr");
size = lvm_lv_get_size(lvl->lv);
if (name == NULL || attrs == NULL || size == NO_VALUE)
continue;
/* Condition on volume type. We want the reported sizes in the
volume group to sum to the size of the volume group, so we ignore
virtual volumes. */
switch (attrs[0]) {
case 's':
case 'S':
/* Snapshot. Also report used/free space. */
report_lv_utilization(lvl->lv, vg_name, name, size,
"data_percent");
break;
case 't':
/* Thin pool virtual volume. We report the underlying data
and metadata volumes, not this one. Report used/free
space, then ignore. */
report_thin_pool_utilization(lvl->lv, vg_name, size);
continue;
case 'v':
/* Virtual volume. Ignore. */
continue;
case 'V':
/* Thin volume or thin snapshot. Ignore. */
continue;
}
lvm_submit(vg_name, name, size);
}