Re: [PATCH v3 05/14] dm: add ->flush() dax operation support

[Kani, Toshimitsu]

On Fri, 2017-06-09 at 13:24 -0700, Dan Williams wrote:
> Allow device-mapper to route flush operations to the
> per-target implementation. In order for the device stacking to work
> we need a dax_dev and a pgoff relative to that device. This gives
> each layer of the stack the information it needs to look up the
> operation pointer for the next level.
> 
> This conceptually allows for an array of mixed device drivers with
> varying flush implementations.
> 
> Cc: Toshi Kani <toshi.kani@xxxxxxx>
> Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>
> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>

Looks good to me.

Reviewed-by: Toshi Kani <toshi.kani@xxxxxxx>

Thanks,
-Toshi