5045 use atomic_{inc,dec}_* instead of atomic_add_*

*** 2008,2018 ****
          if (ret) {
                  goto scm_err_out;
          }
  
          sl->sl_trans_op = SL_OP_NONE;
!         atomic_add_32(&sbd_lu_count, 1);
          return (0);
  
  scm_err_out:
          return (sbd_close_delete_lu(sl, ret));
  }
--- 2008,2018 ----
          if (ret) {
                  goto scm_err_out;
          }
  
          sl->sl_trans_op = SL_OP_NONE;
!         atomic_inc_32(&sbd_lu_count);
          return (0);
  
  scm_err_out:
          return (sbd_close_delete_lu(sl, ret));
  }
*** 2182,2192 ****
          if (ret) {
                  goto scs_err_out;
          }
  
          sl->sl_trans_op = SL_OP_NONE;
!         atomic_add_32(&sbd_lu_count, 1);
          return (0);
  
  scs_err_out:
          return (sbd_close_delete_lu(sl, ret));
  }
--- 2182,2192 ----
          if (ret) {
                  goto scs_err_out;
          }
  
          sl->sl_trans_op = SL_OP_NONE;
!         atomic_inc_32(&sbd_lu_count);
          return (0);
  
  scs_err_out:
          return (sbd_close_delete_lu(sl, ret));
  }
*** 2541,2551 ****
          if (!no_register) {
                  ret = sbd_populate_and_register_lu(sl, err_ret);
                  if (ret) {
                          goto sim_err_out;
                  }
!                 atomic_add_32(&sbd_lu_count, 1);
          }
  
          bcopy(sl->sl_device_id + 4, ilu->ilu_ret_guid, 16);
          sl->sl_trans_op = SL_OP_NONE;
  
--- 2541,2551 ----
          if (!no_register) {
                  ret = sbd_populate_and_register_lu(sl, err_ret);
                  if (ret) {
                          goto sim_err_out;
                  }
!                 atomic_inc_32(&sbd_lu_count);
          }
  
          bcopy(sl->sl_device_id + 4, ilu->ilu_ret_guid, 16);
          sl->sl_trans_op = SL_OP_NONE;
  
*** 2947,2957 ****
          return (EBUSY);
  
  sdl_do_dereg:;
          if (stmf_deregister_lu(sl->sl_lu) != STMF_SUCCESS)
                  return (EBUSY);
!         atomic_add_32(&sbd_lu_count, -1);
  
          return (sbd_close_delete_lu(sl, 0));
  }
  
  int
--- 2947,2957 ----
          return (EBUSY);
  
  sdl_do_dereg:;
          if (stmf_deregister_lu(sl->sl_lu) != STMF_SUCCESS)
                  return (EBUSY);
!         atomic_dec_32(&sbd_lu_count);
  
          return (sbd_close_delete_lu(sl, 0));
  }
  
  int