BUF_SZ_4K
if (!reqbfrcnt || (reqbfrcnt > (80 * BUF_SZ_4K))) {
if (size > BUF_SZ_4K)
cnt = BUF_SZ_4K;
if ((size == 0) || (size > 80 * BUF_SZ_4K)) {
if (full_size >= BUF_SZ_4K) {
total_mem = BUF_SZ_4K;