[ovs-dev] [PATCH net-next 2/2] openvswitch: Use zerocopy if applicable when performing the upcall

[Jesse Gross]

On Mon, Jun 10, 2013 at 1:43 PM, David Miller <davem at davemloft.net> wrote:
> From: Jesse Gross <jesse at nicira.com>
> Date: Mon, 10 Jun 2013 13:34:23 -0700
>
>> Well, this is the slow path. I don't want to force userspace to deal
>> with this because it's an internal kernel optimization that is
>> platform-specific and requires carrying additional metadata around.
>
> I think the grounds for this rejection is over the top and
> unreasonable.

I didn't reject it and in fact, I expect it to go in. I asked for
numbers as to how this affects the common case.