[PATCH V2 01/29] powerpc/mm: add _PAGE_HASHPTE similar to 4K hash

[Paul Mackerras]

On Mon, Feb 08, 2016 at 02:50:13PM +0530, Aneesh Kumar K.V wrote:
> Not really needed. But this brings it back to as it was before

If it's not really needed, what's the motivation for putting this
patch in?  You need to explain where you are heading with this patch.

> Check this
> 41743a4e34f0777f51c1cf0675b91508ba143050

The SHA1 is useful, but you need to be more explicit - something like

"This partially reverts commit 41743a4e34f0 ("powerpc: Free a PTE bit
on ppc64 with 64K pages", 2008-06-11)."

Paul.