On Fri, 21 Jul 2023, Matthew Wilcox wrote: > > You've misunderstood. Google have decided to subject the entire kernel > (including obsolete unmaintained filesystems) to stress tests that it's > never had before. IOW these bugs have been there since the code was > merged. There's nothing to back out. There's no API change to blame. > It's always been buggy and it's never mattered before. > I'm not blaming the unstable API for the bugs, I'm blaming it for the workload. A stable API (like a userspace API) decreases the likelihood that overloaded maintainers have to orphan a filesystem implementation.