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[thin_delta] set nr_data_blocks to zero if there are no space maps.

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ie. a metadata_snap is being used.
This commit is contained in:
Joe Thornber 2016-02-17 10:42:42 +00:00
parent 767c39cf71
commit 0d510924d5
1 changed files with 5 additions and 2 deletions
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7
thin-provisioning/thin_delta.cc
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@ -527,7 +527,7 @@ namespace local {
mapping_recorder mr2; mapping_recorder mr2;
damage_visitor damage_v; damage_visitor damage_v;
superblock_detail::superblock sb; superblock_detail::superblock sb;
checked_space_map::ptr data_sm; block_address nr_data_blocks = 0ull;
{ {
block_manager<>::ptr bm = open_bm(*fs.dev, block_manager<>::READ_ONLY, !fs.use_metadata_snap); block_manager<>::ptr bm = open_bm(*fs.dev, block_manager<>::READ_ONLY, !fs.use_metadata_snap);
@ -562,13 +562,16 @@ namespace local {
btree_visit_values(snap2, mr2, damage_v); btree_visit_values(snap2, mr2, damage_v);
mr2.complete(); mr2.complete();
if (md->data_sm_)
nr_data_blocks = md->data_sm_->get_nr_blocks();
} }
indented_stream is(cout); indented_stream is(cout);
begin_superblock(is, "", sb.time_, begin_superblock(is, "", sb.time_,
sb.trans_id_, sb.trans_id_,
sb.data_block_size_, sb.data_block_size_,
data_sm->get_nr_blocks(), nr_data_blocks,
sb.metadata_snap_ ? sb.metadata_snap_ ?
boost::optional<block_address>(sb.metadata_snap_) : boost::optional<block_address>(sb.metadata_snap_) :
boost::optional<block_address>()); boost::optional<block_address>());