sys/uvm/uvm_pmemrange.c

1206 			uvmexp.zeropages--;
1207 			if (uvmexp.zeropages < UVM_PAGEZERO_TARGET)
1208 				wakeup(&uvmexp.zeropages);
1326 	if (uvmexp.zeropages < UVM_PAGEZERO_TARGET)
1327 		wakeup(&uvmexp.zeropages);
1375 	if (uvmexp.zeropages < UVM_PAGEZERO_TARGET)
1376 		wakeup(&uvmexp.zeropages);
2194 		while (uvmexp.zeropages >= UVM_PAGEZERO_TARGET ||
2197 			msleep_nsec(&uvmexp.zeropages, &uvm.fpageqlock,
2210 		uvmexp.zeropages += count;