RTAS_BLK_SIZE
if (block_size <= 0 || block_size > RTAS_BLK_SIZE) {
if (count > RTAS_BLK_SIZE)
count = RTAS_BLK_SIZE;
RTAS_BLK_SIZE, RTAS_BLK_SIZE,
0, 0, RTAS_BLK_SIZE, NULL);