[GIT PULL] ocfs2 changes for 2.6.32 (take 2, no syscall)

[Joel Becker <Joel.Becker@oracle.com>]

On Mon, Sep 14, 2009 at 02:32:36PM -0700, Linus Torvalds wrote:
> So I'm not pulling this. Not until I get the feeling that there is 
> consensus.

Linus,
	Here are all of the ocfs2 changes without the reflink(2)
system call.  The snapshot functionality is still available via the
ocfs2 ioctl(2).  I'm going to formulate up a new system call based on
the discussion we've had, but clearly that's not something for 2.6.32
anymore.
	Please pull.

The following changes since commit 8379e7c46cc48f51197dd663fc6676f47f2a1e71:
  Sunil Mushran (1):
        ocfs2: ocfs2_write_begin_nolock() should handle len=0

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2.git upstream-linus

Coly Li (1):
      dlmglue.c: add missed mlog lines

Joel Becker (40):
      ocfs2: Make the ocfs2_caching_info structure self-contained.
      ocfs2: Change metadata caching locks to an operations structure.
      ocfs2: Take the inode out of the metadata read/write paths.
      ocfs2: move ip_last_trans to struct ocfs2_caching_info
      ocfs2: move ip_created_trans to struct ocfs2_caching_info
      ocfs2: Pass struct ocfs2_caching_info to the journal functions.
      ocfs2: Store the ocfs2_caching_info on ocfs2_extent_tree.
      ocfs2: Pass ocfs2_caching_info to ocfs2_read_extent_block().
      ocfs2: ocfs2_find_path() only needs the caching info
      ocfs2: ocfs2_create_new_meta_bhs() doesn't need struct inode.
      ocfs2: Pass ocfs2_extent_tree to ocfs2_unlink_path()
      ocfs2: ocfs2_complete_edge_insert() doesn't need struct inode at all.
      ocfs2: Get inode out of ocfs2_rotate_subtree_root_right().
      ocfs2: Pass ocfs2_extent_tree to ocfs2_get_subtree_root()
      ocfs2: Drop struct inode from ocfs2_extent_tree_operations.
      ocfs2: ocfs2_rotate_tree_right() doesn't need struct inode.
      ocfs2: ocfs2_update_edge_lengths() doesn't need struct inode.
      ocfs2: ocfs2_rotate_subtree_left() doesn't need struct inode.
      ocfs2: __ocfs2_rotate_tree_left() doesn't need struct inode.
      ocfs2: ocfs2_rotate_tree_left() no longer needs struct inode.
      ocfs2: ocfs2_merge_rec_left/right() no longer need struct inode.
      ocfs2: ocfs2_try_to_merge_extent() doesn't need struct inode.
      ocfs2: ocfs2_grow_branch() and ocfs2_append_rec_to_path() lose struct inode.
      ocfs2: ocfs2_truncate_rec() doesn't need struct inode.
      ocfs2: Make truncating the extent map an extent_tree_operation.
      ocfs2: ocfs2_insert_at_leaf() doesn't need struct inode.
      ocfs2: Give ocfs2_split_record() an extent_tree instead of an inode.
      ocfs2: ocfs2_do_insert_extent() and ocfs2_insert_path() no longer need an inode.
      ocfs2: ocfs2_extent_contig() only requires the superblock.
      ocfs2: Swap inode for extent_tree in ocfs2_figure_merge_contig_type().
      ocfs2: Remove inode from ocfs2_figure_extent_contig().
      ocfs2: ocfs2_figure_insert_type() no longer needs struct inode.
      ocfs2: Make extent map insertion an extent_tree_operation.
      ocfs2: ocfs2_insert_extent() no longer needs struct inode.
      ocfs2: ocfs2_add_clusters_in_btree() no longer needs struct inode.
      ocfs2: ocfs2_remove_extent() no longer needs struct inode.
      ocfs2: ocfs2_split_and_insert() no longer needs struct inode.
      ocfs2: Teach ocfs2_replace_extent_rec() to use an extent_tree.
      ocfs2: __ocfs2_mark_extent_written() doesn't need struct inode.
      ocfs2: Pass ocfs2_caching_info into ocfs_init_*_extent_tree().

Sunil Mushran (1):
      ocfs2: __ocfs2_abort() should not enable panic for local mounts

Tao Ma (42):
      ocfs2: Define refcount tree structure.
      ocfs2: Add metaecc for ocfs2_refcount_block.
      ocfs2: Add ocfs2_read_refcount_block.
      ocfs2: Abstract caching info checkpoint.
      ocfs2: Add new refcount tree lock resource in dlmglue.
      ocfs2: Add caching info for refcount tree.
      ocfs2: Add refcount tree lock mechanism.
      ocfs2: Basic tree root operation.
      ocfs2: Wrap ocfs2_extent_contig in ocfs2_extent_tree.
      ocfs2: Abstract extent split process.
      ocfs2: Add refcount b-tree as a new extent tree.
      ocfs2: move tree path functions to alloc.h.
      ocfs2: Add support for incrementing refcount in the tree.
      ocfs2: Add support of decrementing refcount for delete.
      ocfs2: Add functions for extents refcounted.
      ocfs2: Decrement refcount when truncating refcounted extents.
      ocfs2: Add CoW support.
      ocfs2: CoW refcount tree improvement.
      ocfs2: Integrate CoW in file write.
      ocfs2: CoW a reflinked cluster when it is truncated.
      ocfs2: Add normal functions for reflink a normal file's extents.
      ocfs2: handle file attributes issue for reflink.
      ocfs2: Return extent flags for xattr value tree.
      ocfs2: Abstract duplicate clusters process in CoW.
      ocfs2: Add CoW support for xattr.
      ocfs2: Remove inode from ocfs2_xattr_bucket_get_name_value.
      ocfs2: Abstract the creation of xattr block.
      ocfs2: Abstract ocfs2 xattr tree extend rec iteration process.
      ocfs2: Attach xattr clusters to refcount tree.
      ocfs2: Call refcount tree remove process properly.
      ocfs2: Create an xattr indexed block if needed.
      ocfs2: Add reflink support for xattr.
      ocfs2: Modify removing xattr process for refcount.
      ocfs2: Don't merge in 1st refcount ops of reflink.
      ocfs2: Make transaction extend more efficient.
      ocfs2: Use proper parameter for some inode operation.
      ocfs2: Create reflinked file in orphan dir.
      ocfs2: Add preserve to reflink.
      ocfs2: Implement ocfs2_reflink.
      ocfs2: Enable refcount tree support.
      ocfs2: Add ioctl for reflink.
      ocfs2: Use buffer IO if we are appending a file.

Wengang Wang (1):
      ocfs2: add spinlock protection when dealing with lockres->purge.

 fs/ocfs2/Makefile          |    1 +
 fs/ocfs2/alloc.c           | 1342 ++++++++------
 fs/ocfs2/alloc.h           |  101 +-
 fs/ocfs2/aops.c            |   37 +-
 fs/ocfs2/aops.h            |    2 +
 fs/ocfs2/buffer_head_io.c  |   47 +-
 fs/ocfs2/buffer_head_io.h  |    8 +-
 fs/ocfs2/cluster/masklog.c |    1 +
 fs/ocfs2/cluster/masklog.h |    1 +
 fs/ocfs2/dir.c             |  107 +-
 fs/ocfs2/dlm/dlmthread.c   |    6 +-
 fs/ocfs2/dlmglue.c         |  105 +-
 fs/ocfs2/dlmglue.h         |    6 +
 fs/ocfs2/extent_map.c      |   33 +-
 fs/ocfs2/extent_map.h      |    8 +-
 fs/ocfs2/file.c            |  151 ++-
 fs/ocfs2/file.h            |    2 +
 fs/ocfs2/inode.c           |   86 +-
 fs/ocfs2/inode.h           |   20 +-
 fs/ocfs2/ioctl.c           |   14 +
 fs/ocfs2/journal.c         |   82 +-
 fs/ocfs2/journal.h         |   94 +-
 fs/ocfs2/localalloc.c      |   12 +-
 fs/ocfs2/namei.c           |  341 ++++-
 fs/ocfs2/namei.h           |    6 +
 fs/ocfs2/ocfs2.h           |   52 +-
 fs/ocfs2/ocfs2_fs.h        |  107 ++-
 fs/ocfs2/ocfs2_lockid.h    |    5 +
 fs/ocfs2/quota_global.c    |    5 +-
 fs/ocfs2/quota_local.c     |   26 +-
 fs/ocfs2/refcounttree.c    | 4313 ++++++++++++++++++++++++++++++++++++++++++++
 fs/ocfs2/refcounttree.h    |  106 ++
 fs/ocfs2/resize.c          |   16 +-
 fs/ocfs2/slot_map.c        |   10 +-
 fs/ocfs2/suballoc.c        |   35 +-
 fs/ocfs2/super.c           |   13 +-
 fs/ocfs2/uptodate.c        |  265 ++--
 fs/ocfs2/uptodate.h        |   51 +-
 fs/ocfs2/xattr.c           | 2056 +++++++++++++++++++--
 fs/ocfs2/xattr.h           |   15 +-
 40 files changed, 8512 insertions(+), 1176 deletions(-)
 create mode 100644 fs/ocfs2/refcounttree.c
 create mode 100644 fs/ocfs2/refcounttree.h
-- 

"But then she looks me in the eye
 And says, 'We're going to last forever,'
 And man you know I can't begin to doubt it.
 Cause it just feels so good and so free and so right,
 I know we ain't never going to change our minds about it, Hey!
 Here comes my girl."

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127