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From:   Rick Macklem <rmacklem@uoguelph.ca>
To:     "J. Bruce Fields" <bfields@fieldses.org>,
        "Schumaker, Anna" <Anna.Schumaker@netapp.com>
CC:     "olga.kornievskaia@gmail.com" <olga.kornievskaia@gmail.com>,
        "trondmy@hammerspace.com" <trondmy@hammerspace.com>,
        "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>,
        "steved@redhat.com" <steved@redhat.com>
Subject: Re: [PATCH 1/1] NFSv4.0 allow nconnect for v4.0
Thread-Topic: [PATCH 1/1] NFSv4.0 allow nconnect for v4.0
Thread-Index: AQHWQCye07Z/EMkfKU+tN6sJacNgAKjUBAfe
Date:   Thu, 11 Jun 2020 22:46:56 +0000
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From: linux-nfs-owner@vger.kernel.org <linux-nfs-owner@vger.kernel.org> on =
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Sent: Thursday, June 11, 2020 4:09 PM
To: Schumaker, Anna
Cc: olga.kornievskaia@gmail.com; trondmy@hammerspace.com; linux-nfs@vger.ke=
rnel.org; steved@redhat.com
Subject: Re: [PATCH 1/1] NFSv4.0 allow nconnect for v4.0

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On Fri, Jan 17, 2020 at 09:16:54PM +0000, Schumaker, Anna wrote:
> On Fri, 2020-01-17 at 21:14 +0000, Trond Myklebust wrote:
> > On Fri, 2020-01-17 at 21:09 +0000, Schumaker, Anna wrote:
> > > Hi Olga,
> > >
> > > On Thu, 2020-01-16 at 14:08 -0500, Olga Kornievskaia wrote:
> > > > From: Olga Kornievskaia <kolga@netapp.com>
> > >
> > > Have you done any testing with nconnect and the v4.0 replay caches? I
> > > did some
> > > digging on the mailing list and found this in one of the cover
> > > letters from
> > > Trond: "The feature is only enabled for NFSv4.1 and NFSv4.2 for now;
> > > I don't
> > > feel comfortable subjecting NFSv3/v4 replay caches to this treatment
> > > yet."
> > >
> >
> > That comment should be considered obsolete. The current code works hard
> > to ensure that we replay using the same connection (or at least the
> > same source/dest IP+ports) so that NFSv3/v4.0 DRCs work as expected.
> > For that reason we've had NFSv3 support since the feature was merged.
> > The NFSv4.0 support was just forgotten.
>
> Thanks for the explanation! I'll add the patch.

What happened to this patch?  As far as I can tell, the conclusion of
this thread was that it should be applied.

--b.

>
> Anna
>
> >
> > > Thanks,
> > > Anna
> > >
> > > > Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
> > > > ---
> > > >  fs/nfs/nfs4client.c | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
> > > > index 460d625..4df3fb0 100644
> > > > --- a/fs/nfs/nfs4client.c
> > > > +++ b/fs/nfs/nfs4client.c
> > > > @@ -881,7 +881,7 @@ static int nfs4_set_client(struct nfs_server
> > > > *server,
> > > >
> > > >         if (minorversion =3D=3D 0)
> > > >                 __set_bit(NFS_CS_REUSEPORT, &cl_init.init_flags);
> > > > -       else if (proto =3D=3D XPRT_TRANSPORT_TCP)
> > > > +       if (proto =3D=3D XPRT_TRANSPORT_TCP)
> > > >                 cl_init.nconnect =3D nconnect;
> > > >
> > > >         if (server->flags & NFS_MOUNT_NORESVPORT)
> > --
> > Trond Myklebust
> > Linux NFS client maintainer, Hammerspace
> > trond.myklebust@hammerspace.com
> >
> >