[2/3] powerpc/mm: Add comments to the vmemmap layout

[Michael Ellerman]

On Thu, 2017-04-06 at 14:14:49 UTC, Anshuman Khandual wrote:
> Add some explaination to the layout of vmemmap virtual address
> space and how physical page mapping is only used for valid PFNs
> present at any point on the system.
> 
> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
> Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/b0f36c10de8d9bd271ae261604d4e4

cheers