NFSD_A_CACHE_FLUSH_MASK
static const struct nla_policy nfsd_cache_flush_nl_policy[NFSD_A_CACHE_FLUSH_MASK + 1] = {
[NFSD_A_CACHE_FLUSH_MASK] = NLA_POLICY_MASK(NLA_U32, 0x3),
.maxattr = NFSD_A_CACHE_FLUSH_MASK,
if (info->attrs[NFSD_A_CACHE_FLUSH_MASK])
mask = nla_get_u32(info->attrs[NFSD_A_CACHE_FLUSH_MASK]);