[PATCH 0/5] NLM fl_pid fixup

[Benjamin Coddington <bcodding@redhat.com>]

This series aims to correct the fl_pid value for locks held by the NLM
server, or lockd.  It applies onto the revert of the previous attempt to fix
this problem sent ealier this week: '[PATCH] Revert "lockd: Show pid of
lockd for remote locks"'.

The problem with the earlier attempt was that we discarded the svid, and so
we couldn't distinguish remote lockowners on each host.  It is necessary to
turn the svid and host into a distinct owner.

We can take a page from the NLM client and make an allocation to track the
svid and host together, which is what we do here.  The mechanisms to do so
aren't quite similar enough to generalize, but I did share the nlm_lockowner
structure.  There is one field unsed on the server: nlm_lockowner.owner.

It turns out that the LTP's testcases/network/nfsv4/locks/locktests.c was
useful for testing this, as it coordinates locking tests amongst NFS
clients.

Benjamin Coddington (5):
  lockd: prepare nlm_lockowner for use by the server
  lockd: Convert NLM service fl_owner to nlm_lockowner
  lockd: Remove lm_compare_owner and lm_owner_key
  lockd: Show pid of lockd for remote locks
  locks: Cleanup lm_compare_owner and lm_owner_key

 Documentation/filesystems/Locking |  14 ----
 fs/lockd/clntproc.c               |  21 +++---
 fs/lockd/svc4proc.c               |  14 +++-
 fs/lockd/svclock.c                | 118 +++++++++++++++++++++++++-----
 fs/lockd/svcproc.c                |  14 +++-
 fs/lockd/svcsubs.c                |   2 +-
 fs/lockd/xdr.c                    |   3 -
 fs/lockd/xdr4.c                   |   3 -
 fs/locks.c                        |   5 --
 include/linux/fs.h                |   2 -
 include/linux/lockd/lockd.h       |   2 +
 11 files changed, 138 insertions(+), 60 deletions(-)

-- 
2.20.1