[git pull] vfs fixes

[Al Viro]

A couple more of d_walk()/d_subdirs reordering fixes (stable fodder; ought to
solve that crap for good) and a fix for a brown paperbag bug in
d_alloc_parallel() (this cycle).

The following changes since commit 1607f09c226d1378439c411baaaa020042750338:

  coredump: fix dumping through pipes (2016-06-07 22:07:09 -0400)

are available in the git repository at:

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

for you to fetch changes up to e7d6ef9790bc281f5c29d0132b68031248523fe8:

  fix idiotic braino in d_alloc_parallel() (2016-06-20 10:07:42 -0400)

----------------------------------------------------------------
Al Viro (3):
      much milder d_walk() race
      autofs races
      fix idiotic braino in d_alloc_parallel()

 fs/autofs4/autofs_i.h  |  8 ++++--
 fs/autofs4/expire.c    | 27 ++++++------------
 fs/autofs4/root.c      |  2 +-
 fs/dcache.c            | 75 ++++++++++++++++++++++++++++++++++++++++++--------
 fs/internal.h          |  1 +
 fs/libfs.c             |  4 +--
 include/linux/dcache.h |  1 +
 7 files changed, 82 insertions(+), 36 deletions(-)