NFSv4: Cleanups for fs_locations code.

Start long arduous project...  What the hell is

	struct dentry = {};

all about?

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --cc fs/nfs/internal.h
Simple merge

diff --cc fs/nfs/nfs4_fs.h
Simple merge

diff --cc fs/nfs/nfs4namespace.c
Simple merge

diff --cc fs/nfs/nfs4proc.c
Simple merge