Re: add a not device managed memremap_pages v3

[Jason Gunthorpe]

On Sun, Aug 18, 2019 at 11:05:53AM +0200, Christoph Hellwig wrote:
> Hi Dan and Jason,
> 
> Bharata has been working on secure page management for kvmppc guests,
> and one I thing I noticed is that he had to fake up a struct device
> just so that it could be passed to the devm_memremap_pages
> instrastructure for device private memory.
> 
> This series adds non-device managed versions of the
> devm_request_free_mem_region and devm_memremap_pages functions for
> his use case.
> 
> Changes since v2:
>  - improved changelogs that the the v2 changes into account
> 
> Changes since v1:
>  - don't overload devm_request_free_mem_region
>  - export the memremap_pages and munmap_pages as kvmppc can be a module

Looks good, I fixed up the patch with Dan's note and reviewed them as
well.

Applied to hmm.git as requested

Thanks,
Jason