configure block readahead and vm writeback settings
@guido.gunther once mentioned something like we'd want to "while playing an audio file, we want the block layer to briefely turn on the cardreader to buffer a file and make the cardreader suspend again, while listening". I think this is true and we should now be able to configure that, see https://www.kernel.org/doc/html/latest/admin-guide/laptops/laptop-mode.html