fsync (and friends, like open(O_SYNC)). This has two side-effects: making software that writes data safely to disk a lot quicker and making this software no longer crash safe. DO NOT use libeatmydata on software where you care about what it stores. It's called libEAT-MY-DATA for a reason. PR: ports/142892 Submitted by: Attila Nagy <bra at fsn.hu>