Re: [PATCH resend mm,net-next 3/3] net-zerocopy: Use vm_insert_pages() for tcp rcv zerocopy.

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On Sun, Feb 23, 2020 at 7:37 PM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Fri, 21 Feb 2020 13:21:41 -0800 Arjun Roy <arjunroy@xxxxxxxxxx> wrote:
>
> > I remain a bit concerned regarding the merge process for this specific
> > patch (0003, the net/ipv4/tcp.c change) since I have other in-flight
> > changes for TCP receive zerocopy that I'd like to upstream for
> > net-next - and would like to avoid weird merge issues.
> >
> > So perhaps the following could work:
> >
> > 1. Andrew, perhaps we could remove this particular patch (0003, the
> > net/ipv4/tcp.c change) from mm-next; that way we merge
> > vm_insert_pages() but not the call-site within TCP, for now.
> > 2. net-next will eventually pick vm_insert_pages() up.
> > 3. I can modify the zerocopy code to use it at that point?
> >
> > Else I'm concerned a complicated merge situation may result.
> >
> > What do you all think?
>
> We could do that.
>
> For now, I'll stage the entire patch series after linux-next and shall
> wait and see whether things which appear in linux-next cause serious
> merge issues to occur.  Sound OK?

Sounds good for now; the conflict itself would be easy enough to fix
when it does crop up.

Thanks,
-Arjun




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