current patch queue for 3.12

Hi folks,

The following mass of patches is my current patch queue I have pending for the 3.12 cycle. There are 4 main pieces in this:

1. kernel/user libxfs rework
This is the first 34 patches of the series, and they have the single aim of removing all the differences between the shared userspace and kernel code. There are several new header files created for shared user/kernel definitions to remove all the __KERNEL__ sections from our header files. The result is about 1500 lines of code in headers files are no longer needlessly shared with userspace.

Similarly, the C code itself is split up in such a ways that kernel only functionality is separated from the shared code. For example, all the readdir code is moved to xfs_dir2_readdir.c, and all the attribute listing code is moved to xfs_attr_list.c This means that the files shared with userpace are now mostly identical (except for #includes) and don't have big diffs when kernel-only code was cut out of the userspace versions. The only remaining significant differences are in xfs_rtalloc.c (needs splitting into kernel only/shared versions) and the generic btree code (different tracing in userspace).

2. Log space reservation rework from Jeff Liu
Rebasing on the above work, and now takes into account the log stripe unit when determining the maximum transaction reservation size. This will warning if a filesystem config is mounted where the log may actually be physically too small because old mkfs programs didn't take into account the log stripe unit when calculating the minimum size.

3. CIL commit optimisation patchset
This is a split up version of the RFC patch that has had a lot more testing and now doesn't randomly assert fail.

4. Directory entry file type support
This adds a single byte field into the directory entries that indicate the type of inode that the dirent points to. This brings XFS up to the same functionality as ext4 and btrfs, and enables us to support whiteout dirents for union mounts. It also greatly speeds use directory traversals as we no longer need to stat every inode to find out which ones are subdirectories that need to be walked.

I have one remaining bit of functionality to complete for 3.12, and that is a new extent swap implementation for CRC enabled filesystems. I hope to have that complete and ready for review within a week.

This series will be followed by an xfsprogs patchset that complements this series to be applied to the crc-dev branch. It makes all the same changes and gives us the most similar code base between kernel and userspace that we've had in many, many years....

Comments, flames, testing and crazy emails all welcome.

Cheers,

Dave.

$ git diff --stat -C -M --summary --minimal 47188d3..3899f80
 fs/xfs/Makefile             |   20 +-
 fs/xfs/xfs_acl.c            |    4 +-
 fs/xfs/xfs_ag.h             |   53 -
 fs/xfs/xfs_alloc.c          |    6 +-
 fs/xfs/xfs_aops.c           |    4 +-
 fs/xfs/xfs_attr.c           |  426 +-----
 fs/xfs/xfs_attr.h           |    9 +
 fs/xfs/xfs_attr_inactive.c  |  453 ++++++
 fs/xfs/xfs_attr_leaf.c      |  655 +-------
 fs/xfs/xfs_attr_leaf.h      |    2 +
 fs/xfs/xfs_attr_list.c      |  655 ++++++++
 fs/xfs/xfs_attr_remote.c    |   18 +-
 fs/xfs/xfs_bmap.c           |  817 +---------
 fs/xfs/xfs_bmap.h           |   56 +-
 fs/xfs/xfs_bmap_btree.c     |    6 +-
 fs/xfs/xfs_bmap_util.c      | 2026 ++++++++++++++++++++++++
 fs/xfs/xfs_bmap_util.h      |  110 ++
 fs/xfs/xfs_btree.h          |    2 -
 fs/xfs/xfs_buf.c            |    1 +
 fs/xfs/xfs_buf_item.c       |   52 +-
 fs/xfs/xfs_buf_item.h       |  100 +-
 fs/xfs/xfs_da_btree.c       |    8 +-
 fs/xfs/xfs_da_btree.h       |    1 +
 fs/xfs/xfs_dfrag.c          |  459 ------
 fs/xfs/xfs_dfrag.h          |   53 -
 fs/xfs/xfs_dir2.c           |   42 +-
 fs/xfs/xfs_dir2.h           |   45 +
 fs/xfs/xfs_dir2_block.c     |  122 +-
 fs/xfs/xfs_dir2_data.c      |   25 +-
 fs/xfs/xfs_dir2_format.h    |  186 ++-
 fs/xfs/xfs_dir2_leaf.c      |  404 +----
 fs/xfs/xfs_dir2_node.c      |   14 +-
 fs/xfs/xfs_dir2_priv.h      |   49 +-
 fs/xfs/xfs_dir2_readdir.c   |  696 +++++++++
 fs/xfs/xfs_dir2_sf.c        |  240 ++-
 fs/xfs/xfs_discard.c        |    5 +-
 fs/xfs/xfs_dquot.c          |    8 +-
 fs/xfs/xfs_dquot_item.c     |   23 +-
 fs/xfs/xfs_error.c          |    1 -
 fs/xfs/xfs_export.c         |    5 +-
 fs/xfs/xfs_extfree_item.c   |   50 +-
 fs/xfs/xfs_extfree_item.h   |   88 +-
 fs/xfs/xfs_file.c           |    3 +-
 fs/xfs/xfs_filestream.c     |    8 +-
 fs/xfs/xfs_filestream.h     |    4 -
 fs/xfs/xfs_format.h         |  169 ++
 fs/xfs/xfs_fs.h             |   32 +
 fs/xfs/xfs_fsops.c          |    8 +-
 fs/xfs/xfs_ialloc.c         |    3 +-
 fs/xfs/xfs_icache.c         |    3 +-
 fs/xfs/xfs_icache.h         |    7 +
 fs/xfs/xfs_icreate_item.c   |   21 +-
 fs/xfs/xfs_icreate_item.h   |   18 -
 fs/xfs/xfs_inode.c          | 3732 ++++++++++++++++++---------------------------
 fs/xfs/xfs_inode.h          |  312 +---
 fs/xfs/xfs_inode_buf.c      |  444 ++++++
 fs/xfs/xfs_inode_buf.h      |   52 +
 fs/xfs/xfs_inode_fork.c     | 1921 +++++++++++++++++++++++
 fs/xfs/xfs_inode_fork.h     |  171 +++
 fs/xfs/xfs_inode_item.c     |   53 +-
 fs/xfs/xfs_inode_item.h     |  115 +-
 fs/xfs/xfs_ioctl.c          |  113 +-
 fs/xfs/xfs_ioctl.h          |   10 +
 fs/xfs/xfs_ioctl32.c        |    4 +-
 fs/xfs/xfs_iomap.c          |   21 +-
 fs/xfs/xfs_iops.c           |   40 +-
 fs/xfs/xfs_iops.h           |   13 +
 fs/xfs/xfs_linux.h          |   32 +
 fs/xfs/xfs_log.c            |  109 +-
 fs/xfs/xfs_log.h            |   90 +-
 fs/xfs/xfs_log_cil.c        |  369 ++---
 fs/xfs/xfs_log_format.h     |  846 ++++++++++
 fs/xfs/xfs_log_priv.h       |  155 +-
 fs/xfs/xfs_log_recover.c    |   12 +-
 fs/xfs/xfs_log_rlimit.c     |  145 ++
 fs/xfs/xfs_mount.c          |  833 +---------
 fs/xfs/xfs_mount.h          |  113 +-
 fs/xfs/xfs_qm.c             |   13 +-
 fs/xfs/xfs_qm_bhv.c         |    1 +
 fs/xfs/xfs_qm_syscalls.c    |   15 +-
 fs/xfs/xfs_quota.h          |  260 +---
 fs/xfs/xfs_quota_defs.h     |  157 ++
 fs/xfs/xfs_quotaops.c       |    4 +-
 fs/xfs/xfs_rename.c         |  346 -----
 fs/xfs/xfs_rtalloc.c        |   28 +-
 fs/xfs/xfs_rtalloc.h        |   53 +-
 fs/xfs/xfs_sb.c             |  771 ++++++++++
 fs/xfs/xfs_sb.h             |   59 +-
 fs/xfs/xfs_super.c          |    6 +-
 fs/xfs/xfs_symlink.c        |  189 +--
 fs/xfs/xfs_symlink.h        |   41 +-
 fs/xfs/xfs_symlink_remote.c |  200 +++
 fs/xfs/xfs_trace.c          |    1 +
 fs/xfs/xfs_trans.c          |  709 +--------
 fs/xfs/xfs_trans.h          |  293 +---
 fs/xfs/xfs_trans_dquot.c    |    1 +
 fs/xfs/xfs_trans_priv.h     |    3 +
 fs/xfs/xfs_trans_resv.c     |  769 ++++++++++
 fs/xfs/xfs_trans_resv.h     |  116 ++
 fs/xfs/xfs_types.h          |   60 +-
 fs/xfs/xfs_utils.c          |  314 ----
 fs/xfs/xfs_utils.h          |   27 -
 fs/xfs/xfs_vnodeops.c       | 1870 -----------------------
 fs/xfs/xfs_vnodeops.h       |   55 -
 fs/xfs/xfs_xattr.c          |    2 +-
 105 files changed, 12629 insertions(+), 11714 deletions(-)
 create mode 100644 fs/xfs/xfs_attr_inactive.c
 create mode 100644 fs/xfs/xfs_attr_list.c
 create mode 100644 fs/xfs/xfs_bmap_util.c
 create mode 100644 fs/xfs/xfs_bmap_util.h
 delete mode 100644 fs/xfs/xfs_dfrag.c
 delete mode 100644 fs/xfs/xfs_dfrag.h
 create mode 100644 fs/xfs/xfs_dir2_readdir.c
 create mode 100644 fs/xfs/xfs_format.h
 create mode 100644 fs/xfs/xfs_inode_buf.c
 create mode 100644 fs/xfs/xfs_inode_buf.h
 create mode 100644 fs/xfs/xfs_inode_fork.c
 create mode 100644 fs/xfs/xfs_inode_fork.h
 create mode 100644 fs/xfs/xfs_log_format.h
 create mode 100644 fs/xfs/xfs_log_rlimit.c
 create mode 100644 fs/xfs/xfs_quota_defs.h
 delete mode 100644 fs/xfs/xfs_rename.c
 create mode 100644 fs/xfs/xfs_sb.c
 create mode 100644 fs/xfs/xfs_symlink_remote.c

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