On Fri, Oct 27, 2023 at 09:03:43AM +0300, Amir Goldstein wrote: > With all due respect, your NACK is uncalled for. It abosolute is not. We must not spread the broken btrfs behavior. > The "details" that fanotify reports and has reported since circa v5.1 > are the same details available to any unprivileged user via calls > to statfs(2) and name_to_handle_at(2). Yes, and that's very broken. btrfs sneaked this in and we need to fix it. Again: Extra-hard-Nacked-by: Christoph Hellwig <hch@xxxxxx> and I'm a little sad that you're even arguing for sneaking such broken thing in.