> I share this thought, and I guess, Laurent expressed this, too. This is
> a separate task to tackle, though. I still think your original patch
> here makes the situation better by making sure the cache gets
> invalidated and should be applied. Or am I missing something?

Okay, I got now that Sashiko's comment was related to cookie-completion
and not the callback. For me, its comment also makes sense because it is
basically the same argument which the commits I quoted to Frank used:
ensure cache completion. This is not only good before the callback but
also before cookie completion. Or am I missing something?

This is easy to fix. If we can agree on switching unmapping before
cookie completion, I can update this patch and then send a series to fix
other drivers, too.

Opinions?