NFSv41: Add a new helper nfs4_init_sequence()

Clean up

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

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

diff --cc fs/nfs/nfs4filelayout.c
Simple merge

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

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

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

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