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Date:   Fri, 13 Dec 2019 12:15:56 -0800 (PST)
From:   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To:     David Hildenbrand <david@redhat.com>
Cc:     linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        virtio-dev@lists.oasis-open.org,
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        Juergen Gross <jgross@suse.com>, Len Brown <lenb@kernel.org>,
        Mel Gorman <mgorman@techsingularity.net>,
        Michal Hocko <mhocko@suse.com>,
        Mike Rapoport <rppt@linux.ibm.com>,
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        Pavel Tatashin <pasha.tatashin@soleen.com>,
        Pavel Tatashin <pavel.tatashin@microsoft.com>,
        Pingfan Liu <kernelfans@gmail.com>, Qian Cai <cai@lca.pw>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Stefan Hajnoczi <stefanha@redhat.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Wei Yang <richard.weiyang@gmail.com>
Subject: Re: [PATCH RFC v4 00/13] virtio-mem: paravirtualized memory
References: <20191212171137.13872-1-david@redhat.com>
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On Thu, Dec 12, 2019 at 06:11:24PM +0100, David Hildenbrand wrote:
> This series is based on latest linux-next. The patches are located at:
>     https://github.com/davidhildenbrand/linux.git virtio-mem-rfc-v4
Heya!

Would there be by any chance a virtio-spec git tree somewhere?

..snip..
> --------------------------------------------------------------------------
> 5. Future work
> --------------------------------------------------------------------------
> 
> The separate patches contain a lot of future work items. One of the next
> steps is to make memory unplug more likely to succeed - currently, there
> are no guarantees on how much memory can get unplugged again. I have


Or perhaps tell the caller why we can't and let them sort it out?
For example: "Application XYZ is mlocked. Can't offload'.