On Mon, Dec 02, 2019 at 10:26:00PM +0000, Eric Wheeler wrote:

> Hi Joe,
> I'm not sure if I will have the time but thought I would start the 
> research and ask a few questions. I looked at the v1/v2 .h files and some 
> of the functions just change suffix to _v2 and maybe calling 
> convention/structure field changes.
> However, there appear to be some design changes, too:

Yes, the interface is different, and it's really not trivial to switch dm-thin
over to use it (otherwise I'd have done it already).  dm-cache already uses
the new interface which could be used as a guide, especially if you look at the 
that made the switch.

I'm going to write up some notes over the next couple of days.  Which I'll post 
on this thread.

- Joe

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