AIO_REQ_QUEUED
reqp->req_state = AIO_REQ_QUEUED;
if (ostate != AIO_REQ_QUEUED)
ASSERT(ostate == AIO_REQ_QUEUED || ostate == AIO_REQ_INPROGRESS);
if (ostate == AIO_REQ_QUEUED) {
reqp->req_state = AIO_REQ_QUEUED;