Maybe. You can query on BFS to match meta data entries. But for me it's more important that file systems be transactional. So instead of doing a stupid write-to

Maybe. You can query on BFS to match meta data entries. But for me it's more important that file systems be transactional. So instead of doing a stupid write-to-tmp-file and then move-into-place-on-same-physical-volume-hoping-it's-atomic dance you could just say open('filename').then_write(buf).then_commit() or whatever and it would do the work as a transaction; or fail. But you wouldn't end up with corrupt files with half written chunks.