[PATCH v3 00/25] add block layout driver to pnfs client

[Jim Rees <rees@umich.edu>]

This patch set adds a block layout driver to the pNFS client.  It passes
Connectathon tests and is bisectable.  It requires an updated version of
nfs-utils, and patches for that have been sent separately to the nfs-utils
maintainer.

This patch set is also available on the for-trond branch of the git repo at
git://citi.umich.edu/projects/linux-pnfs-blk.git

This is version 3 of this patch set.  Changes since version 2:

- Rebase to trond/nfs-for-next (commit ed1e6211a0).
- Fix Fred's and Benny's email addresses.
- Use FIXME to flag code that needs more work.
- Remove obsolete comments.
- Minor patch re-orgs per reviewer comments.

Changes since version 1:

NFS41: Drop lseg ref before fallthru to MDS
SQUASHME: pnfsblock: get rid of vmap and deviceid->area structure
SQUASHME: pnfsblock: define module alias
SQUASHME: pnfsblock: bl_find_get_extent optimization: mv break clause to end of loop
SQUASHME: pnfsblock: test debug bit once for multiple dprintks
SQUASHME: pnfsblock: typo
SQUASHME: pnfsblock: get rid of unused leftovers from device mapping removal

Andy Adamson (2):
  pnfs: GETDEVICELIST
  pnfs: cleanup_layoutcommit

Benny Halevy (2):
  pnfs: add set-clear layoutdriver interface
  pnfsblock: use pageio_ops api

Fred Isaman (15):
  pnfs: ask for layout_blksize and save it in nfs_server
  pnfsblock: add blocklayout Kconfig option, Makefile, and stubs
  pnfsblock: basic extent code
  pnfsblock: lseg alloc and free
  pnfsblock: merge extents
  pnfsblock: call and parse getdevicelist
  pnfsblock: xdr decode pnfs_block_layout4
  pnfsblock: bl_find_get_extent
  pnfsblock: add extent manipulation functions
  pnfsblock: merge rw extents
  pnfsblock: encode_layoutcommit
  pnfsblock: cleanup_layoutcommit
  pnfsblock: bl_read_pagelist
  pnfsblock: bl_write_pagelist
  pnfsblock: note written INVAL areas for layoutcommit

Jim Rees (2):
  pnfsblock: add device operations
  pnfsblock: remove device operations

Peng Tao (4):
  NFS41: Let layoutcommit handle multiple segments
  NFS41: save layoutcommit cred after first successful layoutget
  pnfsblock: write_pagelist handle zero invalid extents
  NFS41: Drop lseg ref before fallthru to MDS

 fs/nfs/Kconfig                      |    8 +-
 fs/nfs/Makefile                     |    1 +
 fs/nfs/blocklayout/Makefile         |    5 +
 fs/nfs/blocklayout/blocklayout.c    | 1043 +++++++++++++++++++++++++++++++++++
 fs/nfs/blocklayout/blocklayout.h    |  208 +++++++
 fs/nfs/blocklayout/blocklayoutdev.c |  410 ++++++++++++++
 fs/nfs/blocklayout/blocklayoutdm.c  |  111 ++++
 fs/nfs/blocklayout/extents.c        |  943 +++++++++++++++++++++++++++++++
 fs/nfs/client.c                     |   11 +-
 fs/nfs/nfs4_fs.h                    |    2 +-
 fs/nfs/nfs4filelayout.c             |    2 +-
 fs/nfs/nfs4proc.c                   |   62 ++-
 fs/nfs/nfs4xdr.c                    |  230 +++++++-
 fs/nfs/pnfs.c                       |   86 ++-
 fs/nfs/pnfs.h                       |   30 +-
 include/linux/nfs.h                 |    2 +
 include/linux/nfs4.h                |    1 +
 include/linux/nfs_fs_sb.h           |    4 +-
 include/linux/nfs_xdr.h             |   17 +-
 19 files changed, 3113 insertions(+), 63 deletions(-)
 create mode 100644 fs/nfs/blocklayout/Makefile
 create mode 100644 fs/nfs/blocklayout/blocklayout.c
 create mode 100644 fs/nfs/blocklayout/blocklayout.h
 create mode 100644 fs/nfs/blocklayout/blocklayoutdev.c
 create mode 100644 fs/nfs/blocklayout/blocklayoutdm.c
 create mode 100644 fs/nfs/blocklayout/extents.c

-- 
1.7.4.1