From:   Trond Myklebust <trondmy@gmail.com>
To:     "J. Bruce Fields" <bfields@redhat.com>
Cc:     linux-nfs@vger.kernel.org
Subject: [PATCH 0/6] Allow containerised knfsd to set supported NFS versions
Date:   Tue,  2 Apr 2019 16:14:42 -0700
Message-Id: <20190402231448.27743-1-trond.myklebust@hammerspace.com>
MIME-Version: 1.0
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Sender: linux-nfs-owner@vger.kernel.org
Precedence: bulk

The current knfsd implementation is unable to support containers that
want to run different combinations of NFS versions. This is because of
the way we define which versions are supported: by directly editing the
global version table in 'nfsd_program'.
The following patch set modifies the method used to define version
information by moving some of the server RPC request initialisation
down into knfsd itself, allowing it to manage the version-specific
initialisation.

Note that we might want to consider a few follow ups to this patchset
to get rid of some of the version-specific flags (e.g. vs_hidden) that
currently need to be managed in the generic SUNRPC server code on behalf
of just one or two RPC programs. These flags can easily by replaced by
custom RPC request initialisers.

Trond Myklebust (6):
  SUNRPC/nfs: Fix return value for nfs4_callback_compound()
  SUNRPC: Add a callback to initialise server requests
  SUNRPC: Clean up generic dispatcher code
  SUNRPC: Allow further customisation of RPC program registration
  nfsd: Add custom rpcbind callbacks for knfsd
  nfsd: Allow containers to set supported nfs versions

 fs/lockd/svc.c             |   4 +-
 fs/nfs/callback.c          |   2 +
 fs/nfs/callback_xdr.c      |   2 +-
 fs/nfsd/netns.h            |   8 +
 fs/nfsd/nfs4proc.c         |   3 +-
 fs/nfsd/nfsctl.c           |  25 +--
 fs/nfsd/nfsd.h             |   8 +-
 fs/nfsd/nfssvc.c           | 251 +++++++++++++++++++++++++-----
 include/linux/sunrpc/svc.h |  33 ++++
 net/sunrpc/svc.c           | 310 ++++++++++++++++++++++++-------------
 10 files changed, 480 insertions(+), 166 deletions(-)

-- 
2.20.1