convert dc to using krefs for object reference counts

[Harry Wentland]

On 2017-10-02 10:38 PM, Dave Airlie wrote:
> This series might be a bit of a too big step :-)
> 

Should be okay since ref counts are pretty self-contained.

> So in the kernel we use krefs for reference counts for lots of good
> reasons, the main one, is no bugs with roll your own atomic reference
> counting for structs, which lots of this code is.
> 
> I've ported all the structs I could find using hand rolled atomic
> reference counters to use krefs.
> 

I'd still echo Christian's nitpick but knowing the state of DC code
style this series is
Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> Dave.
> 
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