ntfs_readntvattr_plain
error = ntfs_readntvattr_plain(ntmp, ip, vap,
error = ntfs_readntvattr_plain(ntmp, ip, lvap, 0, len, alpool, &len,
int ntfs_readntvattr_plain( struct ntfsmount *, struct ntnode *, struct ntvattr *, off_t, size_t, void *,size_t *, struct uio *);