[PATCH] null_blk: use sector_div instead of do_div

[Arnd Bergmann]

On Friday 18 December 2015 17:13:40 Arnd Bergmann wrote:
> On Saturday 28 November 2015 09:05:56 Matias Bjørling wrote:
> > 
> > I had my head around the original code and kept references to the device 
> > layout I had in mind. 256 being number of pages in a block, and the 2^16 
> > being number of blocks in a lun and wanted to communicate that part.. 
> > which led to producing silly code in the mean time.
> > 
> > Similarly, the bs is always fixed to 4k for lightnvm, until other bs 
> > sizes are supported. We could optimize it out, I left it in for the same 
> > reasons.
> 
> I still see the build warning in linux-next, can you merge your patch?

The merge window is open now, the bug persists in linux-next. I'm
submitting Matias version now.

	Arnd