Build provider 3rd arg from smb_request_t
hacking...

*** 225,236 ****
  
          rc = smbsr_decode_vwv(sr, "ww", &op->omode, &op->fqi.fq_sattr);
          if (rc == 0)
                  rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
  
!         DTRACE_SMB_2(op__Open__start, smb_request_t *, sr,
!             struct open_param *, op);
  
          return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
  }
  
  void
--- 225,235 ----
  
          rc = smbsr_decode_vwv(sr, "ww", &op->omode, &op->fqi.fq_sattr);
          if (rc == 0)
                  rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
  
!         DTRACE_SMB_1(op__Open__start, smb_request_t *, sr); /* arg.open */
  
          return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
  }
  
  void
*** 365,376 ****
                  op->crtime.tv_nsec = 0;
  
                  op->create_disposition = smb_ofun_to_crdisposition(op->ofun);
          }
  
!         DTRACE_SMB_2(op__OpenX__start, smb_request_t *, sr,
!             struct open_param *, op);
  
          return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
  }
  
  void
--- 364,374 ----
                  op->crtime.tv_nsec = 0;
  
                  op->create_disposition = smb_ofun_to_crdisposition(op->ofun);
          }
  
!         DTRACE_SMB_1(op__OpenX__start, smb_request_t *, sr); /* arg.open */
  
          return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
  }
  
  void