- u -

• u_ : mongo::V8ScriptEngine::V8UnlockForClient
• unlock_sem : boost::modified_shared_mutex
• unused : mongo::DataFileHeader
• unusedLength : mongo::DataFileHeader
• update : mongo::Top::CollectionData
• updatedExisting : mongo::LastError
• upgrade : boost::modified_shared_mutex::state_data
• upgrade_sem : boost::modified_shared_mutex
• upserted : mongo::UpdateResult
• upsertedId : mongo::LastError
• upSince : mongo::HeartbeatInfo
• us : mongo::MutexDebugger
• user : mongo::AssertionCount , mongo::AuthInfo
• username : mongo::DBClientReplicaSet::AuthInfo