Subject: [PATCH 00/20 v3] SUNRPC: clean up server thread management
From:   NeilBrown <neilb@suse.de>
To:     "J. Bruce Fields" <bfields@fieldses.org>,
        Chuck Lever <chuck.lever@oracle.com>
Cc:     linux-nfs@vger.kernel.org
Date:   Mon, 29 Nov 2021 15:51:25 +1100
Message-ID: <163816133466.32298.13831616524908720974.stgit@noble.brown>
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This is v3 of mt server thread management cleanup series.
changes include:
 - splitting out a couple of patches, and moving simple bugfix to the
   front.
 - Fixed a bug in previous series where lockd module count was being
   incremented when the lockd thread started, but not decremented when
   it exited.
 - minor improvement to patch descriptions.

Thanks for the review and testing!

NeilBrown

---

NeilBrown (20):
      NFSD: handle errors better in write_ports_addfd()
      SUNRPC: change svc_get() to return the svc.
      SUNRPC/NFSD: clean up get/put functions.
      SUNRPC: stop using ->sv_nrthreads as a refcount
      nfsd: make nfsd_stats.th_cnt atomic_t
      SUNRPC: use sv_lock to protect updates to sv_nrthreads.
      NFSD: narrow nfsd_mutex protection in nfsd thread
      NFSD: Make it possible to use svc_set_num_threads_sync
      SUNRPC: discard svo_setup and rename svc_set_num_threads_sync()
      NFSD: simplify locking for network notifier.
      lockd: introduce nlmsvc_serv
      lockd: simplify management of network status notifiers
      lockd: move lockd_start_svc() call into lockd_create_svc()
      lockd: move svc_exit_thread() into the thread
      lockd: introduce lockd_put()
      lockd: rename lockd_create_svc() to lockd_get()
      SUNRPC: move the pool_map definitions (back) into svc.c
      SUNRPC: always treat sv_nrpools==1 as "not pooled"
      lockd: use svc_set_num_threads() for thread start and stop
      NFS: switch the callback service back to non-pooled.


 fs/lockd/svc.c             | 200 +++++++++++--------------------------
 fs/nfs/callback.c          |  32 ++----
 fs/nfsd/netns.h            |  13 +--
 fs/nfsd/nfsctl.c           |  24 ++---
 fs/nfsd/nfsd.h             |   2 +-
 fs/nfsd/nfssvc.c           | 159 +++++++++++++++--------------
 fs/nfsd/stats.c            |   2 +-
 fs/nfsd/stats.h            |   4 +-
 include/linux/sunrpc/svc.h |  79 ++++++++-------
 net/sunrpc/svc.c           | 175 ++++++++++++++------------------
 10 files changed, 286 insertions(+), 404 deletions(-)

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