Re: [PATCH 2/2] dax: move writeback calls into the filesystems

[Jeff Moyer]

Dan Williams <dan.j.williams@xxxxxxxxx> writes:

> I agree the mount option needs to die, and I fully grok the reasoning.
>   What I'm concerned with is that a system using fully-DAX-aware
> applications is forced to incur the overhead of maintaining *sync
> semantics, periodic sync(2) in particular,  even if it is not relying
> on those semantics.
>
> However, like I said in my other mail, we can solve that with
> alternate interfaces to persistent memory if that becomes an issue and
> not require that "disable *sync" capability to come through DAX.

What do you envision these alternate interfaces looking like?

-Jeff