pnfs block layout updates

This patch set applies to the pnfs-block branch of your git repo. Together with the previous 34 patch set this adds the pnfs block layout client to pnfs. I am soliciting comments on this set. The final patch set will differ in three small ways:

1. Removal of some debug printks
2. Removal of the DEVONLY patch
3. Fix up some signed-offs

I believe this set addresses the comments since the previous patch set, including rewriting the I/O path to eliminate write_begin/end and defer layoutget to flush time.

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

Jim Rees (2):
get rid of deprecated xdr macros
reindent

Peng Tao (4):
SQUASHME: pnfs-block: Remove write_begin/end hooks
SQUASHME: pnfs-block: skip sectors already initialized
SQUASHME: pnfs: teach layoutcommit handle multiple segments
pnfs-block: mark IO error with NFS_LAYOUT_{RW|RO}_FAILED

 fs/nfs/blocklayout/blocklayout.c    |  716 ++++++++++++++++-------------------
 fs/nfs/blocklayout/blocklayout.h    |   51 +---
 fs/nfs/blocklayout/blocklayoutdev.c |   30 ++-
 fs/nfs/blocklayout/extents.c        |  115 +++---
 fs/nfs/file.c                       |   26 +--
 fs/nfs/nfs4filelayout.c             |    2 +-
 fs/nfs/nfs4proc.c                   |    8 +-
 fs/nfs/pnfs.c                       |  101 ++----
 fs/nfs/pnfs.h                       |  119 +------
 fs/nfs/write.c                      |   12 +-
 include/linux/nfs_fs.h              |    3 +-
 include/linux/nfs_xdr.h             |    2 +-
 12 files changed, 459 insertions(+), 726 deletions(-)

1.7.4.1