--inode-file-handles=fallback is misleading
--inode-file-handles=fallback
sounds like inode file handles are used as fallback. However, as far as I know, it's the other way around: with this knob, inode file handles are prefered and O_PATH FDs are used as a fallback. Thus, I think --inode-file-handles=fallback
should be renamed to --inode-file-handles=prefer
or something like that.