CACHE_READ
if (op & CACHE_READ)
if (op & CACHE_READ) {
if (op & CACHE_READ) {
if ((op & CACHE_READ) && (op & CACHE_READ_AHEAD_OK) &&
if (num_dirty || (op & CACHE_READ)) {
if (num_dirty || (op & CACHE_READ)) {
if (op & CACHE_READ) {
if (op & CACHE_READ) {
if (cache_block_io(dev, bnum, NULL, 1, bsize, CACHE_READ|CACHE_LOCKED|CACHE_READ_AHEAD_OK,
CACHE_READ | CACHE_READ_AHEAD_OK, NULL);