emo/thin-provisioning-tools
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[thin] Stop metadata counting on the first error

Browse Source
This commit is contained in:
Ming-Hung Tsai
2020-08-11 22:42:32 +08:00
parent 12725983db
commit b16ff123b7
3 changed files with 26 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
thin-provisioning/metadata_counter.cc
View File

@@ -8,7 +8,7 @@ using namespace thin_provisioning;
//----------------------------------------------------------------
namespace {
void count_trees(transaction_manager::ptr tm,
bool count_trees(transaction_manager::ptr tm,
superblock_detail::superblock const &sb,
block_counter &bc) {
@@ -27,11 +27,15 @@ namespace {
mapping_tree_detail::block_traits::ref_counter(space_map::ptr()));
count_btree_blocks(mtree, bc, vc);
}
return true;
}
void count_space_maps(transaction_manager::ptr tm,
bool count_space_maps(transaction_manager::ptr tm,
superblock_detail::superblock const &sb,
block_counter &bc) {
bool ret = true;
// Count the metadata space map (no-throw)
try {
persistent_space_map::ptr metadata_sm =
@@ -39,36 +43,46 @@ namespace {
metadata_sm->count_metadata(bc);
} catch (std::exception &e) {
cerr << e.what() << endl;
ret = false;
}
// Count the data space map (no-throw)
{
try {
persistent_space_map::ptr data_sm =
open_disk_sm(*tm, static_cast<void const *>(&sb.data_space_map_root_));
data_sm->count_metadata(bc);
} catch (std::exception &e) {
cerr << e.what() << endl;
ret = false;
}
return ret;
}
}
//----------------------------------------------------------------
void thin_provisioning::count_metadata(transaction_manager::ptr tm,
bool thin_provisioning::count_metadata(transaction_manager::ptr tm,
superblock_detail::superblock const &sb,
block_counter &bc,
bool skip_metadata_snap) {
bool ret = true;
// Count the superblock
bc.inc(superblock_detail::SUPERBLOCK_LOCATION);
count_trees(tm, sb, bc);
ret &= count_trees(tm, sb, bc);
// Count the metadata snap, if present
if (!skip_metadata_snap && sb.metadata_snap_ != superblock_detail::SUPERBLOCK_LOCATION) {
bc.inc(sb.metadata_snap_);
superblock_detail::superblock snap = read_superblock(tm->get_bm(), sb.metadata_snap_);
count_trees(tm, snap, bc);
ret &= count_trees(tm, snap, bc);
}
count_space_maps(tm, sb, bc);
ret &= count_space_maps(tm, sb, bc);
return ret;
}
//----------------------------------------------------------------