NFS: Add a cache validity flag argument to nfs_revalidate_inode()

Add an argument to nfs_revalidate_inode() to allow callers to specify
which attributes they need to check for validity.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index bb386a6..9ec560a 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -65,7 +65,7 @@ struct posix_acl *nfs3_get_acl(struct inode *inode, int type)
 	if (!nfs_server_capable(inode, NFS_CAP_ACLS))
 		return ERR_PTR(-EOPNOTSUPP);
 
-	status = nfs_revalidate_inode(server, inode);
+	status = nfs_revalidate_inode(inode, NFS_INO_INVALID_CHANGE);
 	if (status < 0)
 		return ERR_PTR(status);