linux-kernel - [PATCH 0/3] nfsd/sunrpc: allow starting/stopping pooled NFS server via netlink

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Message-Id: <20240604-nfsd-next-v1-0-8df686ae61de@kernel.org>
Date: Tue, 04 Jun 2024 17:07:53 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Chuck Lever <chuck.lever@...cle.com>, Neil Brown <neilb@...e.de>, 
 Olga Kornievskaia <kolga@...app.com>, Dai Ngo <Dai.Ngo@...cle.com>, 
 Tom Talpey <tom@...pey.com>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>
Cc: Trond Myklebust <trond.myklebust@...merspace.com>, 
 Anna Schumaker <anna@...nel.org>, linux-nfs@...r.kernel.org, 
 linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
 Jeff Layton <jlayton@...nel.org>
Subject: [PATCH 0/3] nfsd/sunrpc: allow starting/stopping pooled NFS server
 via netlink

This patchset first attempts to detangle the pooled/non-pooled service
handling in the sunrpc layer, unifies the codepaths that start the
pooled vs. non-pooled nfsd, and then wires up the new netlink threads
interface to allow you to start a pooled server by specifying an
array of thread counts.

FWIW, eventually I'd like to wire up the pool_mode setting to netlink as
well. I took a stab at adding a pool_mode parameter to the set_threads
interface, but I think that's the wrong approach. By the time we call
set_threads, we've usually already allocated the serv. I think pool_mode
setting has to be done with new netlink call. I'll probably tackle that
in a later patchset.

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
Jeff Layton (3):
      sunrpc: fix up the special handling of sv_nrpools == 1
      nfsd: make nfsd_svc call nfsd_set_nrthreads
      nfsd: allow passing in array of thread counts via netlink

 fs/nfsd/nfsctl.c           | 45 ++++++++++++++++++++++++++++++++-------------
 fs/nfsd/nfsd.h             |  3 ++-
 fs/nfsd/nfssvc.c           | 30 +++++++++++++-----------------
 include/linux/sunrpc/svc.h |  1 +
 net/sunrpc/svc.c           | 26 +++++++-------------------
 5 files changed, 55 insertions(+), 50 deletions(-)
---
base-commit: fec4124bac55ad92c47585fe537e646fe108b8fa
change-id: 20240604-nfsd-next-b04c0d2d89a9

Best regards,
-- 
Jeff Layton <jlayton@...nel.org>