+ if (td->bs[DDIR_READ] != DEF_BS)
+ td->bs[DDIR_WRITE] = td->bs[DDIR_READ];
+ if (!td->min_bs[DDIR_READ])
+ td->min_bs[DDIR_READ]= td->bs[DDIR_READ];
+ if (!td->max_bs[DDIR_READ])
+ td->max_bs[DDIR_READ] = td->bs[DDIR_READ];
+ if (!td->min_bs[DDIR_WRITE])
+ td->min_bs[DDIR_WRITE]= td->bs[DDIR_WRITE];
+ if (!td->max_bs[DDIR_WRITE])
+ td->max_bs[DDIR_WRITE] = td->bs[DDIR_WRITE];
+
+ td->rw_min_bs = min(td->min_bs[DDIR_READ], td->min_bs[DDIR_WRITE]);
+