On Thu, Nov 28, 2019 at 04:59:40PM +0100, Miklos Szeredi wrote: > While this is a standard option as documented in mount(8), it is ignored by > most filesystems. So reject, unless filesystem explicitly wants to handle > it. > > The exception is unconverted filesystems, where it is unknown if the > filesystem handles this or not. > > Any implementation, such as mount(8), that needs to parse this option > without failing can simply ignore the return value from fsconfig(). Unless I'm missing something, that will mean that having it in /etc/fstab for a converted filesystem (xfs, for example) will fail when booting new kernel with existing /sbin/mount. Doesn't sound like a good idea...
