It needs 5.1 to be actually useful though: https://man7.org/linux/man-pages/man7...

It needs 5.1 to be actually useful though:

https://man7.org/linux/man-pages/man7/fanotify.7.html

       In the original fanotify API,
       only a limited set of events was supported.  In particular, there
       was no support for create, delete, and move events.  The support
       for those events was added in Linux 5.1.  (See inotify(7) for
       details of an API that did notify those events pre Linux 5.1.)

https://www.phoronix.com/scan.php?page=news_item&px=Linux-5....

And https://lore.kernel.org/git/87czs1d6uy.fsf@evledraar.gmail.c... to link to fanotify discussion on the git mailing list (as well as some flaming about the feature not being supported on linux).