test_block_zeros
test_block_zeros(data, pblksize)) {
static int test_block_zeros(const char *buf, size_t bytes);
test_block_zeros(data, pblksize)) {
test_block_zeros(data, pblksize)) {
static int test_block_zeros(const char *buf, size_t bytes);
test_block_zeros(data, pblksize)) {