[git pull] vfs.git

[Al Viro]

	overlayfs merge + leak fix for d_splice_alias() failure exits.

Please, pull from the usual place:
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-linus

Shortlog:
Al Viro (5):
      fix inode leaks on d_splice_alias() failure exits
      overlayfs: don't hold ->i_mutex over opening the real directory
      overlayfs: make ovl_cache_entry->name an array instead of pointer
      overlayfs: embed root into overlay_readdir_data
      overlayfs: embed middle into overlay_readdir_data

Andy Whitcroft (1):
      overlayfs: add statfs support

Erez Zadok (1):
      overlayfs: implement show_options

Miklos Szeredi (11):
      vfs: add i_op->dentry_open()
      vfs: export do_splice_direct() to modules
      vfs: export __inode_permission() to modules
      vfs: introduce clone_private_mount()
      vfs: export check_sticky()
      vfs: add whiteout support
      vfs: add RENAME_WHITEOUT
      ext4: support RENAME_WHITEOUT
      shmem: support RENAME_WHITEOUT
      overlay filesystem
      fs: limit filesystem stacking depth

Neil Brown (1):
      overlay: overlay filesystem documentation

Diffstat:
 Documentation/filesystems/Locking       |    2 +
 Documentation/filesystems/overlayfs.txt |  198 +++++++
 Documentation/filesystems/vfs.txt       |    7 +
 MAINTAINERS                             |    7 +
 fs/Kconfig                              |    1 +
 fs/Makefile                             |    1 +
 fs/btrfs/ioctl.c                        |   20 +-
 fs/dcache.c                             |    2 +
 fs/ecryptfs/main.c                      |    7 +
 fs/ext4/namei.c                         |   95 +++-
 fs/internal.h                           |    7 -
 fs/namei.c                              |   41 +-
 fs/namespace.c                          |   27 +
 fs/open.c                               |   23 +-
 fs/overlayfs/Kconfig                    |   10 +
 fs/overlayfs/Makefile                   |    7 +
 fs/overlayfs/copy_up.c                  |  414 ++++++++++++++
 fs/overlayfs/dir.c                      |  921 +++++++++++++++++++++++++++++++
 fs/overlayfs/inode.c                    |  425 ++++++++++++++
 fs/overlayfs/overlayfs.h                |  191 +++++++
 fs/overlayfs/readdir.c                  |  590 ++++++++++++++++++++
 fs/overlayfs/super.c                    |  796 ++++++++++++++++++++++++++
 fs/splice.c                             |    1 +
 include/linux/fs.h                      |   39 ++
 include/linux/mount.h                   |    3 +
 include/uapi/linux/fs.h                 |    1 +
 mm/shmem.c                              |   36 +-
 27 files changed, 3814 insertions(+), 58 deletions(-)
 create mode 100644 Documentation/filesystems/overlayfs.txt
 create mode 100644 fs/overlayfs/Kconfig
 create mode 100644 fs/overlayfs/Makefile
 create mode 100644 fs/overlayfs/copy_up.c
 create mode 100644 fs/overlayfs/dir.c
 create mode 100644 fs/overlayfs/inode.c
 create mode 100644 fs/overlayfs/overlayfs.h
 create mode 100644 fs/overlayfs/readdir.c
 create mode 100644 fs/overlayfs/super.c
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