5042 stop using deprecated atomic functions

*** 587,597 ****
                          t->t_hrtime = newtime;
                          scalehrtime(&delta);
                          pctcpu = t->t_pctcpu;
                          npctcpu = cpu_decay(pctcpu, delta);
                  }
!         } while (cas32(&t->t_pctcpu, pctcpu, npctcpu) != pctcpu);
  
          return (npctcpu);
  }
  
  /*
--- 587,597 ----
                          t->t_hrtime = newtime;
                          scalehrtime(&delta);
                          pctcpu = t->t_pctcpu;
                          npctcpu = cpu_decay(pctcpu, delta);
                  }
!         } while (atomic_cas_32(&t->t_pctcpu, pctcpu, npctcpu) != pctcpu);
  
          return (npctcpu);
  }
  
  /*
*** 655,665 ****
                  }
                  oldtime = *mstimep;
                  newtime += oldtime;
                  t->t_mstate = new_state;
                  ms->ms_state_start = curtime;
!         } while (cas64((uint64_t *)mstimep, oldtime, newtime) != oldtime);
  
          /*
           * When the system boots the initial startup thread will have a
           * ms_state_start of 0 which would add a huge system time to the global
           * zone.  We want to skip aggregating that initial bit of work.
--- 655,666 ----
                  }
                  oldtime = *mstimep;
                  newtime += oldtime;
                  t->t_mstate = new_state;
                  ms->ms_state_start = curtime;
!         } while (atomic_cas_64((uint64_t *)mstimep, oldtime, newtime) !=
!             oldtime);
  
          /*
           * When the system boots the initial startup thread will have a
           * ms_state_start of 0 which would add a huge system time to the global
           * zone.  We want to skip aggregating that initial bit of work.
*** 779,789 ****
                          oldtime = *mstimep - 1; /* force CAS to fail */
                          continue;
                  }
                  oldtime = *mstimep;
                  newtime += oldtime;
!         } while (cas64((uint64_t *)mstimep, oldtime, newtime) != oldtime);
  
          /*
           * Update the WAIT_CPU timer and per-cpu waitrq total.
           */
          z = ttozone(t);
--- 780,791 ----
                          oldtime = *mstimep - 1; /* force CAS to fail */
                          continue;
                  }
                  oldtime = *mstimep;
                  newtime += oldtime;
!         } while (atomic_cas_64((uint64_t *)mstimep, oldtime, newtime) !=
!             oldtime);
  
          /*
           * Update the WAIT_CPU timer and per-cpu waitrq total.
           */
          z = ttozone(t);