HASH_FLAGS_BUSY
dd->hash_flags &= ~(BIT(HASH_FLAGS_BUSY) | BIT(HASH_FLAGS_FINAL) |
if (test_bit(HASH_FLAGS_BUSY, &dd->hash_flags)) {
set_bit(HASH_FLAGS_BUSY, &dd->hash_flags);
if (!test_bit(HASH_FLAGS_BUSY, &dd->hash_flags)) {
if (!test_bit(HASH_FLAGS_BUSY, &dd->hash_flags))