req_data
xbdreq->req_data = bp->b_data;
xbdreq->req_dmamap, xbdreq->req_data, bp->b_bcount, NULL,
if (__predict_false(bp->b_data != xbdreq->req_data))
if (__predict_false(bp->b_data != xbdreq->req_data))
void *req_data; /* pointer to the data buffer */
xbdreq2->req_data = xbdreq->req_data;
#define req_data u.req_rw.req_data
req->req_data = (void *)sc->sc_unalign_buffer;
memcpy(req->req_data, req->req_bp->b_data,
memcpy(bp->b_data, req->req_data, bp->b_bcount);
if (__predict_false(bp->b_data != xbdreq->req_data))
xbdreq->req_data = NULL;