From: Eric
> Sent: 03 December 2020 23:15
>
> On Fri, Dec 4, 2020 at 12:01 AM David Laight wrote:
> >
> > From: Stephen Hemminger
> > > Sent: 03 December 2020 00:15
> > >
> > > On Wed, 2 Dec 2020 14:09:38 -0800
> > > Arjun Roy wrote:
> > >
> > > > diff --git a/include/uapi/linux/tcp.h b/include
From: Arjun Roy
> Sent: 03 December 2020 23:25
...
> > > You also have to allow for old (working) applications being recompiled
> > > with the new headers.
> > > So you cannot rely on the fields being zero even if you are passed
> > > the size of the structure.
> > >
> >
> > I think this should alr
From: Stephen Hemminger
> Sent: 03 December 2020 00:15
>
> On Wed, 2 Dec 2020 14:09:38 -0800
> Arjun Roy wrote:
>
> > diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
> > index cfcb10b75483..62db78b9c1a0 100644
> > --- a/include/uapi/linux/tcp.h
> > +++ b/include/uapi/linux/tcp.
On Wed, 2 Dec 2020 14:09:38 -0800
Arjun Roy wrote:
> diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
> index cfcb10b75483..62db78b9c1a0 100644
> --- a/include/uapi/linux/tcp.h
> +++ b/include/uapi/linux/tcp.h
> @@ -349,5 +349,7 @@ struct tcp_zerocopy_receive {
> __u32 recv
From: Arjun Roy
When TCP receive zerocopy does not successfully map the entire
requested space, it outputs a 'hint' that the caller should recvmsg().
Augment zerocopy to accept a user buffer that it tries to copy this
hint into - if it is possible to copy the entire hint, it will do so.
This eli
