NFSv4: Make NFSv4 ACCESS calls return attributes too...

It doesn't really make sense to cache an access call without also
revalidating the attributes.

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

include/linux/nfs_xdr.h

@@ -538,10 +538,13 @@ typedef u64 clientid4;
 
 struct nfs4_accessargs {
 	const struct nfs_fh *		fh;
+	const u32 *			bitmask;
 	u32				access;
 };
 
 struct nfs4_accessres {
+	const struct nfs_server *	server;
+	struct nfs_fattr *		fattr;
 	u32				supported;
 	u32				access;
 };