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Allow writes with low version numbers after a delete

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This commit is contained in:
Vitaliy Filippov
2020-12-04 11:54:41 +03:00
parent 089f138e0c
commit 44656fbf67
4 changed files with 117 additions and 32 deletions
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blockstore_rollback.cpp
+32 -2
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@@ -234,10 +234,35 @@ void blockstore_impl_t::handle_rollback_event(ring_data_t *data, blockstore_op_t
void blockstore_impl_t::erase_dirty(blockstore_dirty_db_t::iterator dirty_start, blockstore_dirty_db_t::iterator dirty_end, uint64_t clean_loc)
{
auto dirty_it = dirty_end;
while (dirty_it != dirty_start)
if (dirty_end == dirty_start)
{
return;
}
auto dirty_it = dirty_end;
dirty_it--;
if (IS_DELETE(dirty_it->second.state))
{
object_id oid = dirty_it->first.oid;
dirty_it = dirty_end;
// Unblock operations blocked by delete flushing
uint32_t next_state = BS_ST_IN_FLIGHT;
while (dirty_it != dirty_db.end() && dirty_it->first.oid == oid)
{
if ((dirty_it->second.state & BS_ST_WORKFLOW_MASK) == BS_ST_WAIT_DEL)
{
dirty_it->second.state = (dirty_it->second.state & ~BS_ST_WORKFLOW_MASK) | next_state;
if (IS_BIG_WRITE(dirty_it->second.state))
{
next_state = BS_ST_WAIT_BIG;
}
}
dirty_it++;
}
dirty_it = dirty_end;
dirty_it--;
}
while (1)
{
if (IS_BIG_WRITE(dirty_it->second.state) && dirty_it->second.location != clean_loc)
{
#ifdef BLOCKSTORE_DEBUG
@@ -256,6 +281,11 @@ void blockstore_impl_t::erase_dirty(blockstore_dirty_db_t::iterator dirty_start,
{
journal.used_sectors.erase(dirty_it->second.journal_sector);
}
if (dirty_it == dirty_start)
{
break;
}
dirty_it--;
}
dirty_db.erase(dirty_start, dirty_end);
}