vfs pile 1

Assorted stuff from the last cycle. That's not all, there will be
another pile tomorrow or on Saturday... Please, pull from

git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6.git/ for-linus

Shortlog:
Al Viro (2):
consolidate nameidata_..._drop_rcu() merge handle_reval_dot and nameidata_drop_rcu_last

Jan Kara (2):
vfs: Create __block_page_mkwrite() helper passing error values back
vfs: Block mmapped writes while the fs is frozen

Jonas Gorski (1):
exportfs: reallow building as a module

Miklos Szeredi (1):
vfs: fix vfs_rename_dir for FS_RENAME_DOES_D_MOVE filesystems

Roman Borisov (1):
fs/namespace.c: bound mount propagation fix

Sage Weil (18):
vfs: dentry_unhash immediately prior to rmdir
vfs: remove dget() from dentry_unhash()
vfs: push dentry_unhash on rmdir into file systems
vfs: push dentry_unhash on rename_dir into file systems
vfs: update dentry_unhash() comment
libfs: drop unneeded dentry_unhash
vfs: clean up vfs_rmdir
vfs: clean up vfs_rename_dir
vfs: clean up vfs_rename_other
ceph: remove unnecessary dentry_unhash calls
btrfs: remove unnecessary dentry_unhash in rmdir/rename_dir
ext4: remove unnecessary dentry_unhash on rmdir/rename_dir
ext3: remove unnecessary dentry_unhash on rmdir/rename_dir
ext2: remove unnecessary dentry_unhash on rmdir/rename_dir
nfs: remove unnecessary dentry_unhash on rmdir/rename_dir
exofs: remove unnecessary dentry_unhash on rmdir/rename_dir
ocfs2: remove unnecessary dentry_unhash on rmdir/rename_dir
cifs: remove unnecessary dentry_unhash on rmdir/rename_dir

Diffstat:

 fs/9p/vfs_inode.c           |    4 +
 fs/Kconfig                  |    2 +-
 fs/affs/namei.c             |    5 +
 fs/afs/dir.c                |    5 +
 fs/autofs4/root.c           |    2 +
 fs/bfs/dir.c                |    3 +
 fs/buffer.c                 |   59 +++++--
 fs/coda/dir.c               |    5 +
 fs/configfs/dir.c           |    2 +
 fs/ecryptfs/inode.c         |    5 +
 fs/fat/namei_msdos.c        |    5 +
 fs/fat/namei_vfat.c         |    5 +
 fs/fuse/dir.c               |    6 +
 fs/hfs/dir.c                |    6 +
 fs/hfsplus/dir.c            |    8 +-
 fs/hostfs/hostfs_kern.c     |    5 +
 fs/hpfs/namei.c             |    9 +-
 fs/jffs2/dir.c              |    5 +
 fs/jfs/namei.c              |    5 +
 fs/logfs/dir.c              |    5 +
 fs/minix/namei.c            |    5 +
 fs/namei.c                  |  380 ++++++++++++++++---------------------------
 fs/namespace.c              |    2 +-
 fs/ncpfs/dir.c              |    5 +
 fs/nilfs2/namei.c           |    5 +
 fs/omfs/dir.c               |   11 +-
 fs/reiserfs/namei.c         |    5 +
 fs/reiserfs/xattr.c         |    1 -
 fs/sysv/namei.c             |    5 +
 fs/ubifs/dir.c              |    5 +
 fs/udf/namei.c              |    5 +
 fs/ufs/namei.c              |    5 +
 include/linux/buffer_head.h |   16 ++
 33 files changed, 332 insertions(+), 269 deletions(-)