[GIT PULL] nfsd bugfixes for 4.7

[GIT PULL] nfsd bugfixes for 4.7

[J. Bruce Fields]

Please pull nfsd bugfixes for 4.7 from:

  git://linux-nfs.org/~bfields/linux.git tags/nfsd-4.7-1

--b.

----------------------------------------------------------------
Oleg Drokin found and fixed races in the nfsd4 state code that go back
to the big nfs4_lock_state removal around 3.17 (but that were also
probably hard to reproduce before client changes in 3.20 allowed the
client to perform parallel opens).

Also fix a 4.1 backchannel crash due to rpc multipath changes in 4.6.
Trond acked the client-side rpc fixes going through my tree.

----------------------------------------------------------------
Geert Uytterhoeven (1):
      nfsd: Fix NFSD_MDS_PR_KEY on 32-bit by adding ULL postfix

J. Bruce Fields (3):
      SUNRPC: fix xprt leak on xps allocation failure
      nfsd4/rpc: move backchannel create logic into rpc code
      rpc: share one xps between all backchannels

Oleg Drokin (3):
      nfsd: Always lock state exclusively.
      nfsd: Extend the mutex holding region around in nfsd4_process_open2()
      nfsd: Make init_open_stateid() a bit more whole

 fs/nfsd/blocklayout.c           |  2 +-
 fs/nfsd/nfs4callback.c          | 18 +----------
 fs/nfsd/nfs4state.c             | 67 +++++++++++++++++++++++------------------
 fs/nfsd/state.h                 |  2 +-
 include/linux/sunrpc/clnt.h     |  2 --
 include/linux/sunrpc/svc_xprt.h |  1 +
 include/linux/sunrpc/xprt.h     |  1 +
 net/sunrpc/clnt.c               | 31 +++++++++++++++----
 net/sunrpc/svc_xprt.c           |  2 ++
 net/sunrpc/xprtsock.c           |  1 +
 10 files changed, 70 insertions(+), 57 deletions(-)