On Wed, Sep 15, 2021 at 10:23 AM Eric Sandeen [off-list ref] wrote:

As there seems to be no significant outstanding concern about
dax on xfs at this point, remove the scary EXPERIMENTAL
warning when in use.

(dax+reflink is still unimplemented, but that can be considered
a future feature, and doesn't require a warning for the
non-reflink usecase.)

The original concern was that dax-reflink could not be implemented
without ABI regressions. As far as I can see that concern has been put
to rest by the proposed patches. Am I wrong? So, if we're committed to
not breaking past promises I think this change can be made
out-of-order from when the reflink support patches land.

Acked-by: Dan Williams <redacted>

...but I'm also fine with waiting for the final reflink merge.