[PATCH 6.6.y 00/12] Backport "make svc_stat per-net instead of global"

[cel@kernel.org]

From: Chuck Lever <chuck.lever@oracle.com>

Following up on:

https://lore.kernel.org/linux-nfs/d4b235df-4ee5-4824-9d48-e3b3c1f1f4d1@oracle.com/

Here is a backport series targeting origin/linux-6.6.y that closes
the information leak described in the above thread. It passes basic
NFSD regression testing.

Review comments welcome.   

Chuck Lever (2):
  NFSD: Rewrite synopsis of nfsd_percpu_counters_init()
  NFSD: Fix frame size warning in svc_export_parse()

Josef Bacik (10):
  sunrpc: don't change ->sv_stats if it doesn't exist
  nfsd: stop setting ->pg_stats for unused stats
  sunrpc: pass in the sv_stats struct through svc_create_pooled
  sunrpc: remove ->pg_stats from svc_program
  sunrpc: use the struct net as the svc proc private
  nfsd: rename NFSD_NET_* to NFSD_STATS_*
  nfsd: expose /proc/net/sunrpc/nfsd in net namespaces
  nfsd: make all of the nfsd stats per-network namespace
  nfsd: remove nfsd_stats, make th_cnt a global counter
  nfsd: make svc_stat per-network namespace instead of global

 fs/lockd/svc.c             |  3 --
 fs/nfs/callback.c          |  3 --
 fs/nfsd/cache.h            |  2 -
 fs/nfsd/export.c           | 32 ++++++++++----
 fs/nfsd/export.h           |  4 +-
 fs/nfsd/netns.h            | 25 +++++++++--
 fs/nfsd/nfs4proc.c         |  6 +--
 fs/nfsd/nfs4state.c        |  3 +-
 fs/nfsd/nfscache.c         | 40 ++++-------------
 fs/nfsd/nfsctl.c           | 16 +++----
 fs/nfsd/nfsd.h             |  1 +
 fs/nfsd/nfsfh.c            |  3 +-
 fs/nfsd/nfssvc.c           | 14 +++---
 fs/nfsd/stats.c            | 54 ++++++++++-------------
 fs/nfsd/stats.h            | 88 ++++++++++++++------------------------
 fs/nfsd/vfs.c              |  6 ++-
 include/linux/sunrpc/svc.h |  5 ++-
 net/sunrpc/stats.c         |  2 +-
 net/sunrpc/svc.c           | 39 +++++++++++------
 19 files changed, 163 insertions(+), 183 deletions(-)

-- 
2.45.1