REQ_IO_DONE
REQ_IO_DONE |
if (client->flags & REQ_IO_DONE) {
client->flags |= (REQ_IO_DONE | CLIENT_IO_ALLOCATED);
if (!(client->flags & REQ_IO_DONE)) {
client->flags &= ~(REQ_IO_DONE | CLIENT_IO_ALLOCATED);
if (client->flags & REQ_IO_DONE) {