[git pull] vfs pile 3/many...

[git pull] vfs pile 3/many...

[Al Viro]

Waiman's conversion of d_path() and bits related to it, kern_path_mountpoint(),
several cleanups and fixes (exportfs one is -stable fodder, IMO).  There
definitely will be more... ;-/  Please, pull from the usual place -
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-linus

Shortlog:
Al Viro (8):
      afs: get rid of redundant ->d_name.len checks
      exportfs: don't assume that ->iterate() won't feed us too long entries
      prune_super(): sb->s_op is never NULL
      Kill indirect include of file.h from eventfd.h, use fdget() in cgroup.c
      take unlazy_walk() into umount_lookup_last()
      rename user_path_umountat() to user_path_mountpoint_at()
      introduce kern_path_mountpoint()
      split read_seqretry_or_unlock(), convert d_walk() to resulting primitives

Ian Kent (1):
      autofs4 - fix device ioctl mount lookup

Waiman Long (1):
      dcache: Translating dentry into pathname without taking rename_lock

Diffstat:
 fs/afs/dir.c            |   24 -----
 fs/autofs4/dev-ioctl.c  |   23 +++---
 fs/dcache.c             |  220 +++++++++++++++++++++++++++++++----------------
 fs/exportfs/expfs.c     |    2 +-
 fs/internal.h           |    3 +
 fs/namei.c              |  112 +++++++++++++-----------
 fs/namespace.c          |    2 +-
 fs/super.c              |    2 +-
 include/linux/eventfd.h |    3 +-
 include/linux/namei.h   |    4 +-
 kernel/cgroup.c         |   33 ++++----
 11 files changed, 241 insertions(+), 187 deletions(-)