CACHE_LOCKED
if (op & CACHE_LOCKED)
if (data == NULL || (op & CACHE_LOCKED)) {
if (op & CACHE_LOCKED)
if (op & CACHE_LOCKED) {
if (cache_block_io(dev, bnum, NULL, 1, bsize, CACHE_READ|CACHE_LOCKED|CACHE_READ_AHEAD_OK,
if (cache_block_io(dev, bnum, NULL, 1, bsize, CACHE_NOOP|CACHE_LOCKED,
CACHE_WRITE | CACHE_LOCKED, NULL);