[GIT PULL] Please pull NFS client bugfixes for 5.6-rc2

[Schumaker, Anna]

Hi Linus,

The following changes since commit bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9:

  Linux 5.6-rc1 (2020-02-09 16:08:48 -0800)

are available in the Git repository at:

  git://git.linux-nfs.org/projects/anna/linux-nfs.git tags/nfs-for-5.6-2

for you to fetch changes up to 5d63944f8206a80636ae8cb4b9107d3b49f43d37:

  NFSv4: Ensure the delegation cred is pinned when we call delegreturn (2020-02-
13 16:23:02 -0500)

----------------------------------------------------------------
The only stable fix this time is the DMA scatter-gather list bug fixed by Chuck.
The rest fix up races and refcounting issues that have been found during
testing.

Thanks,
Anna

----------------------------------------------------------------
Chuck Lever (1):
      xprtrdma: Fix DMA scatter-gather list mapping imbalance

Olga Kornievskaia (1):
      NFSv4.1 make cachethis=no for writes

Trond Myklebust (5):
      NFS: Fix up directory verifier races
      NFSv4: Fix races between open and dentry revalidation
      NFSv4: Fix revalidation of dentries with delegations
      NFSv4: Ensure the delegation is pinned in nfs_do_return_delegation()
      NFSv4: Ensure the delegation cred is pinned when we call delegreturn

 fs/nfs/delegation.c            |  50 ++++++++++++++++++++++++++++++++++++++++
----------
 fs/nfs/delegation.h            |   1 +
 fs/nfs/dir.c                   | 126
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++----------
 fs/nfs/inode.c                 |   1 +
 fs/nfs/nfs4file.c              |   1 -
 fs/nfs/nfs4proc.c              |  20 +++++++++++++++++---
 include/linux/nfs_fs.h         |  26 ++++++--------------------
 net/sunrpc/xprtrdma/frwr_ops.c |  13 +++++++------
 8 files changed, 188 insertions(+), 50 deletions(-)