linux-phytec-fsl

NFS: Do not aggressively cache file attributes in the case of O_DIRECT

A file that is open for O_DIRECT is by definition not obeying
close-to-open cache consistency semantics, so let's not cache
the attributes too aggressively either.

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