Re: [RFC 0/8] Copy Offload with Peer-to-Peer PCI Memory

From: Dan Williams
Date: Thu Apr 20 2017 - 16:47:33 EST


On Thu, Apr 20, 2017 at 1:43 PM, Stephen Bates <sbates@xxxxxxxxxxxx> wrote:
>
>> Yes, this makes sense I think we really just want to distinguish host
>> memory or not in terms of the dev_pagemap type.
>
> I would like to see mutually exclusive flags for host memory (or not) and persistence (or not).
>

Why persistence? It has zero meaning to the mm.