XXXX pass in cpu_pause_func via pause_cpus

*** 439,449 ****
                  pg_cpupart_in(cp, oldpp);
                  cpu_inmotion = NULL;
                  return (EBUSY);
          }
  
!         pause_cpus(cp);
  
          if (move_threads) {
                  /*
                   * The thread on cpu before the pause thread may have read
                   * cpu_inmotion before we raised the barrier above.  Check
--- 439,449 ----
                  pg_cpupart_in(cp, oldpp);
                  cpu_inmotion = NULL;
                  return (EBUSY);
          }
  
!         pause_cpus(cp, NULL);
  
          if (move_threads) {
                  /*
                   * The thread on cpu before the pause thread may have read
                   * cpu_inmotion before we raised the barrier above.  Check
*** 863,873 ****
          /*
           * Pause all CPUs while changing the partition list, to make sure
           * the clock thread (which traverses the list without holding
           * cpu_lock) isn't running.
           */
!         pause_cpus(NULL);
          pp->cp_next = cp_list_head;
          pp->cp_prev = cp_list_head->cp_prev;
          cp_list_head->cp_prev->cp_next = pp;
          cp_list_head->cp_prev = pp;
          start_cpus();
--- 863,873 ----
          /*
           * Pause all CPUs while changing the partition list, to make sure
           * the clock thread (which traverses the list without holding
           * cpu_lock) isn't running.
           */
!         pause_cpus(NULL, NULL);
          pp->cp_next = cp_list_head;
          pp->cp_prev = cp_list_head->cp_prev;
          cp_list_head->cp_prev->cp_next = pp;
          cp_list_head->cp_prev = pp;
          start_cpus();
*** 1009,1019 ****
          /*
           * Pause all CPUs while changing the partition list, to make sure
           * the clock thread (which traverses the list without holding
           * cpu_lock) isn't running.
           */
!         pause_cpus(NULL);
          pp->cp_prev->cp_next = pp->cp_next;
          pp->cp_next->cp_prev = pp->cp_prev;
          if (cp_list_head == pp)
                  cp_list_head = pp->cp_next;
          start_cpus();
--- 1009,1019 ----
          /*
           * Pause all CPUs while changing the partition list, to make sure
           * the clock thread (which traverses the list without holding
           * cpu_lock) isn't running.
           */
!         pause_cpus(NULL, NULL);
          pp->cp_prev->cp_next = pp->cp_next;
          pp->cp_next->cp_prev = pp->cp_prev;
          if (cp_list_head == pp)
                  cp_list_head = pp->cp_next;
          start_cpus();