XXXX pass in cpu_pause_func via pause_cpus

@@ -439,11 +439,11 @@
                 pg_cpupart_in(cp, oldpp);
                 cpu_inmotion = NULL;
                 return (EBUSY);
         }
 
-        pause_cpus(cp);
+        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

@@ -863,11 +863,11 @@
         /*
          * 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);
+        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();

@@ -1009,11 +1009,11 @@
         /*
          * 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);
+        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();