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Store transaction_id with created thin lv

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So we know the creation history and this should be useful with vgcfgrestore.
This commit is contained in:
Zdenek Kabelac 2011-10-21 11:38:35 +00:00
parent 4d925f5785
commit f0c9160df4
3 changed files with 10 additions and 3 deletions
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7
lib/metadata/lv_manip.c
View File

@ -253,8 +253,11 @@ struct lv_segment *alloc_lv_segment(struct dm_pool *mem,
dm_list_init(&seg->tags);
dm_list_init(&seg->thin_messages);
if (thin_pool_lv && !attach_pool_lv(seg, thin_pool_lv))
return_NULL;
if (thin_pool_lv) {
seg->transaction_id = first_seg(thin_pool_lv)->transaction_id;
if (!attach_pool_lv(seg, thin_pool_lv))
return_NULL;
}
if (log_lv && !attach_mirror_log(seg, log_lv))
return_NULL;

2
lib/metadata/metadata-exported.h
View File

@ -343,7 +343,7 @@ struct lv_segment {
struct lv_segment_area *areas;
struct lv_segment_area *meta_areas; /* For RAID */
struct logical_volume *pool_metadata_lv;/* For thin_pool */
uint64_t transaction_id; /* For thin_pool */
uint64_t transaction_id; /* For thin_pool, thin */
uint64_t low_water_mark; /* For thin_pool */
uint32_t data_block_size; /* For thin_pool, 128..2097152 */
unsigned zero_new_blocks; /* For thin_pool */

4
lib/thin/thin.c
View File

@ -310,6 +310,9 @@ static int _thin_text_import(struct lv_segment *seg,
if (!attach_pool_lv(seg, pool_lv))
return_0;
if (!dm_config_get_uint64(sn, "transaction_id", &seg->transaction_id))
return SEG_LOG_ERROR("Could not read transaction_id for");
if (dm_config_has_node(sn, "origin")) {
if (!dm_config_get_str(sn, "origin", &lv_name))
return SEG_LOG_ERROR("Origin must be a string in");
@ -331,6 +334,7 @@ static int _thin_text_import(struct lv_segment *seg,
static int _thin_text_export(const struct lv_segment *seg, struct formatter *f)
{
outf(f, "thin_pool = \"%s\"", seg->pool_lv->name);
outf(f, "transaction_id = %" PRIu64, seg->transaction_id);
outf(f, "device_id = %d", seg->device_id);
if (seg->origin)