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

*** 477,487 ****
          ASSERT(ncec->ncec_refcnt >= 2);
          ncec->ncec_flags |= NCE_F_CONDEMNED;
          mutex_exit(&ncec->ncec_lock);
  
          /* Count how many condemned ires for kmem_cache callback */
!         atomic_add_32(&ipst->ips_num_nce_condemned, 1);
          nce_fastpath_list_delete(ncec->ncec_ill, ncec, NULL);
  
          /* Complete any waiting callbacks */
          ncec_cb_dispatch(ncec);
  
--- 477,487 ----
          ASSERT(ncec->ncec_refcnt >= 2);
          ncec->ncec_flags |= NCE_F_CONDEMNED;
          mutex_exit(&ncec->ncec_lock);
  
          /* Count how many condemned ires for kmem_cache callback */
!         atomic_inc_32(&ipst->ips_num_nce_condemned);
          nce_fastpath_list_delete(ncec->ncec_ill, ncec, NULL);
  
          /* Complete any waiting callbacks */
          ncec_cb_dispatch(ncec);