linux-phytec-fsl

NFSv4: Call update_changeattr() from _nfs4_proc_open only if a file was created

We don't want to invalidate the directory attribute and data cache unless we
know that a file was created, or the change attribute differs from the one
in our cache.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>