263   Writer* last_writer = write_group.last_writer;  in LinkGroup()  local
264   Writer* w = last_writer;  in LinkGroup()
278     if (newest_writer->compare_exchange_weak(newest, last_writer)) {  in LinkGroup()
312     write_group.last_writer = nullptr;  in CompleteLeader()
325   if (w == write_group.last_writer) {  in CompleteFollower()
327     write_group.last_writer = w->link_older;  in CompleteFollower()
434   write_group->last_writer = leader;  in EnterAsBatchGroupLeader()
493     write_group->last_writer = w;  in EnterAsBatchGroupLeader()
521   Writer* last_writer = leader;  in EnterAsMemTableWriter()  local
550       last_writer = w;  in EnterAsMemTableWriter()
555   write_group->last_writer = last_writer;  in EnterAsMemTableWriter()
557       last_writer->sequence + WriteBatchInternal::Count(last_writer->batch) - 1;  in EnterAsMemTableWriter()
563   Writer* last_writer = write_group.last_writer;  in ExitAsMemTableWriter()  local
565   Writer* newest_writer = last_writer;  in ExitAsMemTableWriter()
569     Writer* next_leader = last_writer->link_newer;  in ExitAsMemTableWriter()
583     if (w == last_writer) {  in ExitAsMemTableWriter()
638   Writer* last_writer = write_group.last_writer;  in ExitAsBatchGroupLeader()  local
654     for (Writer* w = last_writer; w != leader;) {  in ExitAsBatchGroupLeader()
672     Writer* expected = last_writer;  in ExitAsBatchGroupLeader()
677       next_leader = FindNextLeader(expected, last_writer);  in ExitAsBatchGroupLeader()
678       assert(next_leader != nullptr && next_leader != last_writer);  in ExitAsBatchGroupLeader()
716     if (head != last_writer ||  in ExitAsBatchGroupLeader()
725       assert(head != last_writer);  in ExitAsBatchGroupLeader()
735       assert(last_writer->link_newer->link_older == last_writer);  in ExitAsBatchGroupLeader()
736       last_writer->link_newer->link_older = nullptr;  in ExitAsBatchGroupLeader()
742       SetState(last_writer->link_newer, STATE_GROUP_LEADER);  in ExitAsBatchGroupLeader()
747     while (last_writer != leader) {  in ExitAsBatchGroupLeader()
748       assert(last_writer);  in ExitAsBatchGroupLeader()
749       last_writer->status = status;  in ExitAsBatchGroupLeader()
753       auto next = last_writer->link_older;  in ExitAsBatchGroupLeader()
754       SetState(last_writer, STATE_COMPLETED);  in ExitAsBatchGroupLeader()
756       last_writer = next;  in ExitAsBatchGroupLeader()