[PATCH v4 00/18] nfs/nfsd: add support for localio

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Hi,

This v4 fixes a few bugs in v3, reorders patches and improves patch
headers and code documentation. Please pay particular attention to
patches 17 and 18.

If all looks good to others, for v5 I can rebase to the -next trees
for nfs and nfsd.

My git tree is here:
https://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git/

This v4 is both branch nfs-localio-for-6.11 (always tracks latest)
and nfs-localio-for-6.11.v4

nfs-localio-for-6.11.v3, nfs-localio-for-6.11.v2 and
nfs-localio-for-6.11.v1 are also there.

To see the changes from v3 to v4 please do:
git remote add snitzer git://git.kernel.org/pub/scm/linux/kernel/git/snitzer/linux.git
git remote update snitzer
git diff snitzer/nfs-localio-for-6.11.v3 snitzer/nfs-localio-for-6.11.v4

These changes have proven stable against various test scenarios:
1) client and server both on localhost (for both v3 and v4.2)
2) various permutations of client and server support enablement for
   both local and remote client and server.
3) client on host, server within a container (for both v3 and v4.2)
   My container testing was in terms of podman managed containers.
4) container stop/restart scenario documented in the last patch

All review and comments are welcome!

Thanks,
Mike

Mike Snitzer (10):
  nfs_common: add NFS LOCALIO protocol extension enablement
  nfs: implement v3 and v4 client support for NFS_LOCALIO_PROGRAM
  nfsd: implement v3 and v4 server support for NFS_LOCALIO_PROGRAM
  nfs/nfsd: consolidate {encode,decode}_opaque_fixed in nfs_xdr.h
  nfs/localio: move managing nfsd_open_local_fh symbol to nfs_common
  nfs/nfsd: ensure localio server always uses its network namespace
  nfsd/localio: manage netns reference in nfsd_open_local_fh
  nfsd: prepare to use SRCU to dereference nn->nfsd_serv
  nfsd: use SRCU to dereference nn->nfsd_serv
  nfsd/localio: use SRCU to dereference nn->nfsd_serv in nfsd_open_local_fh

Trond Myklebust (3):
  NFS: Enable localio for non-pNFS I/O
  pnfs/flexfiles: Enable localio for flexfiles I/O
  nfs/localio: use dedicated workqueues for filesystem read and write

Weston Andros Adamson (5):
  nfs: pass nfs_client to nfs_initiate_pgio
  nfs: pass descriptor thru nfs_initiate_pgio path
  nfs: pass struct file to nfs_init_pgio and nfs_init_commit
  sunrpc: add rpcauth_map_to_svc_cred_local
  nfs/nfsd: add "localio" support

 fs/Kconfig                                |   3 +
 fs/nfs/Kconfig                            |  30 +
 fs/nfs/Makefile                           |   1 +
 fs/nfs/blocklayout/blocklayout.c          |   6 +-
 fs/nfs/client.c                           |  15 +-
 fs/nfs/filelayout/filelayout.c            |  16 +-
 fs/nfs/flexfilelayout/flexfilelayout.c    | 131 +++-
 fs/nfs/flexfilelayout/flexfilelayout.h    |   2 +
 fs/nfs/flexfilelayout/flexfilelayoutdev.c |   6 +
 fs/nfs/inode.c                            |  61 +-
 fs/nfs/internal.h                         |  88 ++-
 fs/nfs/localio.c                          | 850 ++++++++++++++++++++++
 fs/nfs/nfs3_fs.h                          |   1 +
 fs/nfs/nfs3client.c                       |  25 +
 fs/nfs/nfs3proc.c                         |   3 +
 fs/nfs/nfs3xdr.c                          |  58 ++
 fs/nfs/nfs4_fs.h                          |   2 +
 fs/nfs/nfs4client.c                       |  23 +
 fs/nfs/nfs4proc.c                         |   3 +
 fs/nfs/nfs4xdr.c                          |  65 +-
 fs/nfs/nfstrace.h                         |  61 ++
 fs/nfs/pagelist.c                         |  32 +-
 fs/nfs/pnfs.c                             |  24 +-
 fs/nfs/pnfs.h                             |   6 +-
 fs/nfs/pnfs_nfs.c                         |   2 +-
 fs/nfs/write.c                            |  13 +-
 fs/nfs_common/Makefile                    |   3 +
 fs/nfs_common/nfslocalio.c                |  71 ++
 fs/nfsd/Kconfig                           |  30 +
 fs/nfsd/Makefile                          |   1 +
 fs/nfsd/filecache.c                       |  15 +-
 fs/nfsd/localio.c                         | 398 ++++++++++
 fs/nfsd/netns.h                           |  16 +-
 fs/nfsd/nfs4state.c                       |  25 +-
 fs/nfsd/nfsctl.c                          |  28 +-
 fs/nfsd/nfsd.h                            |  11 +
 fs/nfsd/nfssvc.c                          | 176 ++++-
 fs/nfsd/trace.h                           |   3 +-
 fs/nfsd/vfs.h                             |   9 +
 fs/nfsd/xdr.h                             |   6 +
 include/linux/nfs.h                       |   2 +
 include/linux/nfs_fs.h                    |   2 +
 include/linux/nfs_fs_sb.h                 |   9 +
 include/linux/nfs_xdr.h                   |  31 +-
 include/linux/nfslocalio.h                |  61 ++
 include/linux/sunrpc/auth.h               |   4 +
 include/uapi/linux/nfs.h                  |   4 +
 net/sunrpc/auth.c                         |  15 +
 48 files changed, 2305 insertions(+), 142 deletions(-)
 create mode 100644 fs/nfs/localio.c
 create mode 100644 fs/nfs_common/nfslocalio.c
 create mode 100644 fs/nfsd/localio.c
 create mode 100644 include/linux/nfslocalio.h

-- 
2.44.0





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