[$] Messiness in removing directories

Post Syndicated from jake original https://lwn.net/Articles/757122/rss

In the filesystem track at the 2018 Linux Storage, Filesystem, and
Memory-Management Summit (LSFMM), Al Viro discussed some problems he has
recently spotted in the implementation of rmdir().
He covered some of the history of that implementation and how things got to
where they are now. He also described areas that needed to be checked
because the problem may be present in different places in multiple filesystems.