vfs.git fixes

Tmpfs readdir throughput regression fix (this cycle) + some -stable
fodder all over the place. One missing bit is Miklos' tonight locks.c fix - NFS folks had already grabbed that one by the time I woke up ;-)

The following changes since commit e7d6ef9790bc281f5c29d0132b68031248523fe8:

fix idiotic braino in d_alloc_parallel() (2016-06-20 10:07:42 -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 e06b933e6ded42384164d28a2060b7f89243b895:

namespace: update event counter when umounting a deleted dentry (2016-06-30 23:28:30 -0400)

----------------------------------------------------------------
Al Viro (4):
dcache_{readdir,dir_lseek}(): don't bother with nested ->d_lock libfs.c: new helper - next_positive()
lockless next_positive()
ceph: fix d_obtain_alias() misuses

Andrey Ulanov (1):
namespace: update event counter when umounting a deleted dentry

Miklos Szeredi (1):
9p: use file_dentry()

 fs/9p/vfs_file.c |   6 +--
 fs/ceph/export.c |  10 ++---
 fs/libfs.c       | 109 ++++++++++++++++++++++++++++++++++++-------------------
 fs/namespace.c   |   1 +
 4 files changed, 78 insertions(+), 48 deletions(-)