Re: [PATCH 1/2] xfs: show the dax option in mount options.

[Christoph Hellwig]

On Mon, Nov 09, 2020 at 08:10:08PM +0100, Michal Suchanek wrote:
> xfs accepts both dax and dax_enum but shows only dax_enum. Show both
> options.

Which is very much intentional.  The -o dax was an experimental hack
that fortunately is gone now.