[GIT PULL] Please pull NFS client updates for Linux 5.9

[Trond Myklebust <trondmy@hammerspace.com>]

Hi Linus,

The following changes since commit c1326210477ecc06c53221f0005c64419aba30d6:

  nfs,nfsd: NFSv4.2 extended attribute protocol definitions (2020-07-13 17:20:49 -0400)

are available in the Git repository at:

  git://git.linux-nfs.org/projects/trondmy/linux-nfs.git tags/nfs-for-5.9-1

for you to fetch changes up to 563c53e73b8b6ec842828736f77e633f7b0911e9:

  NFS: Fix flexfiles read failover (2020-08-12 11:20:29 -0400)

Cheers
  Trond

----------------------------------------------------------------
NFS client updates for Linux 5.9

Highlights include:

Stable fixes:
- pNFS: Don't return layout segments that are being used for I/O
- pNFS: Don't move layout segments off the active list when being used for I/O

Features:
- NFS: Add support for user xattrs through the NFSv4.2 protocol
- NFS: Allow applications to speed up readdir+statx() using AT_STATX_DONT_SYNC
- NFSv4.0 allow nconnect for v4.0

Bugfixes and cleanups:
- nfs: ensure correct writeback errors are returned on close()
- nfs: nfs_file_write() should check for writeback errors
- nfs: Fix getxattr kernel panic and memory overflow
- NFS: Fix the pNFS/flexfiles mirrored read failover code
- SUNRPC: dont update timeout value on connection reset
- freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS
- sunrpc: destroy rpc_inode_cachep after unregister_filesystem

----------------------------------------------------------------
Colin Ian King (1):
      NFS: remove redundant initialization of variable result

Dan Aloni (1):
      sunrpc: destroy rpc_inode_cachep after unregister_filesystem

Frank van der Linden (13):
      nfs: add client side only definitions for user xattrs
      NFSv4.2: define limits and sizes for user xattr handling
      NFSv4.2: query the server for extended attribute support
      NFSv4.2: add client side XDR handling for extended attributes
      nfs: define nfs_access_get_cached function
      NFSv4.2: query the extended attribute access bits
      nfs: modify update_changeattr to deal with regular files
      nfs: define and use the NFS_INO_INVALID_XATTR flag
      nfs: make the buf_to_pages_noslab function available to the nfs code
      NFSv4.2: add the extended attribute proc functions.
      NFSv4.2: hook in the user extended attribute handlers
      NFSv4.2: add client side xattr caching.
      NFSv4.2: xattr cache: get rid of cache discard work queue

He Zhe (1):
      freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS

Jeffrey Mitchell (1):
      nfs: Fix getxattr kernel panic and memory overflow

Olga Kornievskaia (2):
      NFSv4.0 allow nconnect for v4.0
      SUNRPC dont update timeout value on connection reset

Randy Dunlap (1):
      fs: nfs: delete repeated words in comments

Scott Mayhew (2):
      nfs: ensure correct writeback errors are returned on close()
      nfs: nfs_file_write() should check for writeback errors

Trond Myklebust (11):
      NFS: Allow applications to speed up readdir+statx() using AT_STATX_DONT_SYNC
      pNFS/flexfiles: Clean up redundant calls to pnfs_put_lseg()
      pNFS/flexfiles: The mirror count could depend on the layout segment range
      Merge commit 'c1326210477ecc06c53221f0005c64419aba30d6' from nfsd/linux-next
      Merge branch 'xattr-devel'
      NFS: Report the stateid + status in trace_nfs4_layoutreturn_on_close()
      NFS: Add tracepoints for layouterror and layoutstats.
      NFS: Add layout segment info to pnfs read/write/commit tracepoints
      NFS: Don't move layouts to plh_return_segs list while in use
      NFS: Don't return layout segments that are in use
      NFS: Fix flexfiles read failover

Xu Wang (1):
      rpc_pipefs: convert comma to semicolon

 fs/nfs/Makefile                        |    2 +-
 fs/nfs/blocklayout/rpc_pipefs.c        |    2 +-
 fs/nfs/client.c                        |   22 +-
 fs/nfs/dir.c                           |   24 +-
 fs/nfs/direct.c                        |    2 +-
 fs/nfs/file.c                          |   17 +-
 fs/nfs/flexfilelayout/flexfilelayout.c |   64 +-
 fs/nfs/fs_context.c                    |    2 +-
 fs/nfs/inode.c                         |   20 +-
 fs/nfs/nfs42.h                         |   24 +
 fs/nfs/nfs42proc.c                     |  258 +++++++-
 fs/nfs/nfs42xattr.c                    | 1056 ++++++++++++++++++++++++++++++++
 fs/nfs/nfs42xdr.c                      |  438 +++++++++++++
 fs/nfs/nfs4_fs.h                       |   35 ++
 fs/nfs/nfs4client.c                    |   33 +-
 fs/nfs/nfs4file.c                      |    5 +-
 fs/nfs/nfs4proc.c                      |  241 +++++++-
 fs/nfs/nfs4super.c                     |   10 +
 fs/nfs/nfs4trace.h                     |   46 +-
 fs/nfs/nfs4xdr.c                       |   39 +-
 fs/nfs/nfstrace.h                      |    3 +-
 fs/nfs/pnfs.c                          |   52 +-
 fs/nfs/pnfs.h                          |    2 +-
 include/linux/freezer.h                |   14 +
 include/linux/nfs4.h                   |    5 +
 include/linux/nfs_fs.h                 |   12 +
 include/linux/nfs_fs_sb.h              |    6 +
 include/linux/nfs_xdr.h                |   60 +-
 include/linux/sunrpc/xprt.h            |    1 +
 include/uapi/linux/nfs_fs.h            |    1 +
 net/sunrpc/rpc_pipe.c                  |    2 +-
 net/sunrpc/xprt.c                      |    9 +
 32 files changed, 2383 insertions(+), 124 deletions(-)
 create mode 100644 fs/nfs/nfs42xattr.c

-- 
Trond Myklebust
Linux NFS client maintainer, Hammerspace
trond.myklebust@hammerspace.com