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Rename object_db to clean_db

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This commit is contained in:
Vitaliy Filippov
2019-11-10 22:41:40 +03:00
parent 69581e6d0c
commit ff57dd420e
5 changed files with 11 additions and 11 deletions
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blockstore_stable.cpp
+4 -4
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@@ -8,8 +8,8 @@ int blockstore::dequeue_stable(blockstore_operation *op)
});
if (dirty_it == dirty_db.end())
{
auto clean_it = object_db.find(op->oid);
if (clean_it == object_db.end() || clean_it->second.version < op->version)
auto clean_it = clean_db.find(op->oid);
if (clean_it == clean_db.end() || clean_it->second.version < op->version)
{
// No such object version
op->retval = EINVAL;
@@ -116,7 +116,7 @@ void blockstore::handle_stable_event(ring_data_t *data, blockstore_operation *op
dirty_it->second.state = ST_J_STABLE;
// Copy data from the journal to the data device
// -> increase version on the metadata device
// -> advance object_db entry's version and clear previous journal entries
// -> advance clean_db entry's version and clear previous journal entries
// This makes 1 4K small write look like:
// 512b+4K (journal) + sync + 512b (journal) + sync + 512b (metadata) + 4K (data) + sync.
// WA = 2.375. It's not the best, SSD FTL-like redirect-write with defragmentation
@@ -127,7 +127,7 @@ void blockstore::handle_stable_event(ring_data_t *data, blockstore_operation *op
{
dirty_it->second.state = ST_D_STABLE;
// Copy metadata from the journal to the metadata device
// -> move dirty_db entry to object_db and clear previous journal entries
// -> move dirty_db entry to clean_db and clear previous journal entries
// This makes 1 128K big write look like:
// 128K (data) + sync + 512b (journal) + sync + 512b (journal) + sync + 512b (metadata) + sync.
// WA = 1.012. Very good :)