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lv_manip: layout and role support for vdo segment

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This commit is contained in:
Zdenek Kabelac 2018-06-29 11:18:44 +02:00
parent 00990ed53e
commit 493ffe7a0f
1 changed files with 45 additions and 0 deletions
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45
lib/metadata/lv_manip.c
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@ -113,6 +113,7 @@ enum {
LV_TYPE_POOL,
LV_TYPE_DATA,
LV_TYPE_SPARE,
LV_TYPE_VDO,
LV_TYPE_VIRTUAL,
LV_TYPE_RAID0,
LV_TYPE_RAID0_META,
@ -164,6 +165,7 @@ static const char *_lv_type_names[] = {
[LV_TYPE_POOL] = "pool",
[LV_TYPE_DATA] = "data",
[LV_TYPE_SPARE] = "spare",
[LV_TYPE_VDO] = "vdo",
[LV_TYPE_VIRTUAL] = "virtual",
[LV_TYPE_RAID0] = SEG_TYPE_NAME_RAID0,
[LV_TYPE_RAID0_META] = SEG_TYPE_NAME_RAID0_META,
@ -466,6 +468,44 @@ bad:
return 0;
}
static int _lv_layout_and_role_vdo(struct dm_pool *mem,
const struct logical_volume *lv,
struct dm_list *layout,
struct dm_list *role,
int *public_lv)
{
int top_level = 0;
/* non-top-level LVs */
if (lv_is_vdo_pool(lv)) {
if (!str_list_add_no_dup_check(mem, layout, _lv_type_names[LV_TYPE_VDO]) ||
!str_list_add_no_dup_check(mem, layout, _lv_type_names[LV_TYPE_POOL]))
goto_bad;
} else if (lv_is_vdo_pool_data(lv)) {
if (!str_list_add_no_dup_check(mem, role, _lv_type_names[LV_TYPE_VDO]) ||
!str_list_add_no_dup_check(mem, role, _lv_type_names[LV_TYPE_POOL]) ||
!str_list_add_no_dup_check(mem, role, _lv_type_names[LV_TYPE_DATA]))
goto_bad;
} else
top_level = 1;
if (!top_level) {
*public_lv = 0;
return 1;
}
/* top-level LVs */
if (lv_is_vdo(lv)) {
if (!str_list_add_no_dup_check(mem, layout, _lv_type_names[LV_TYPE_VDO]) ||
!str_list_add_no_dup_check(mem, layout, _lv_type_names[LV_TYPE_SPARSE]))
goto_bad;
}
return 1;
bad:
return 0;
}
int lv_layout_and_role(struct dm_pool *mem, const struct logical_volume *lv,
struct dm_list **layout, struct dm_list **role) {
int linear, striped;
@ -510,6 +550,11 @@ int lv_layout_and_role(struct dm_pool *mem, const struct logical_volume *lv,
!_lv_layout_and_role_cache(mem, lv, *layout, *role, &public_lv))
goto_bad;
/* VDO and related */
if (lv_is_vdo_type(lv) &&
!_lv_layout_and_role_vdo(mem, lv, *layout, *role, &public_lv))
goto_bad;
/* Pool-specific */
if (lv_is_pool_metadata_spare(lv)) {
if (!str_list_add_no_dup_check(mem, *role, _lv_type_names[LV_TYPE_POOL]) ||