[PATCH v5 4/5] null_blk: LightNVM support

[Christoph Hellwig]

On Thu, Jul 23, 2015 at 12:48:00PM +0200, Matias Bj?rling wrote:
> Only reason was to not duplicate the I/O submission/completion flow.
> With the simple code at the moment, it is little to add. However, if
> someone decides to put backing store, simulation, etc. into it, then it
> should properly go into another module.
> 
> Do you want me to move it into a new driver for this patchset?

I'd prefer to have it separate unless there's a good reason to merge it
into null_blk.  From your above descriptions it sounds like it really
should be separate.