AFAICS there's no way to get `i_version` from userspace? I'd swear this was one of the original goals of statx() and the notes in https://lwn.net/Articles/707602/ say "including generation and version numbers" but that apparently never happened? Is there a reason why not? I tried to search in the archives for this but the keywords I could think of around "stat" and "version" had too many other hits. (Motivated by hitting some timestamp granularity issues in a synthetic test case for file time changes; if we could compare i_version instead that race would go away)
