On Fri, Apr 14, 2023 at 09:29:02PM +0300, Amir Goldstein wrote: > inotify generates unsolicited IN_UNMOUNT events for every inode > mark before the filesystem containing the inode is shutdown. > > Unlike IN_UNMOUNT, FAN_UNMOUNT is an opt-in event that can only be > set on a mount mark and is generated when the mount is unmounted. > > FAN_UNMOUNT requires FAN_REPORT_FID and reports an fid info record > with fsid of the filesystem and an empty file handle. > > Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> > --- I think this is a useful addition to the fanotify api and more useful than IN_UMOUNT. Going back to your cover letter. Afaiu, IN_UMOUNT is generated when the superblock in which a watched object resides goes away. That's roughly what I had in mind with FAN_SB_SHUTDOWN (ignoring naming discusions for now).
