ZFS mounts are not monitored

[carlreinke]

fatrace doesn't work on ZFS mounts (except -c mode) because the mnt_fsname is not a device.

A few examples of mount output for ZFS filesystems:

bpool/BOOT/ubuntu_lkdzni on /boot type zfs (rw,nodev,relatime,xattr,posixacl)
rpool/ROOT/ubuntu_lkdzni on / type zfs (rw,relatime,xattr,posixacl)
rpool/USERDATA/root_lkdzni on /root type zfs (rw,relatime,xattr,posixacl)

Having an option to opt-in specified non-device-file-based filesystem types for monitoring would at least make fatrace usable with ZFS. (Just one possible solution.)

[papamoose]

I'd also like support for ZFS even if support is minimal. I currently use a really old version fanotify_watch with a couple lines commented out to monitor ZFS mounts for certain files.

/proc/self/mounts:

...
dozer/scripts /dozer/scripts zfs rw,noatime,xattr,posixacl 0 0
...

As of 2021-12-17: the zfs file system seems to get ignored on line 379 (ctrl+f "only consider").

I added a condition to not ignore ZFS: strcmp(mount->mnt_type, "zfs") != 0

However this leads to an error: fatrace: Received unexpected event info type 52. I did not go any further in my debugging.