--- Net2/vm/vm_fault.c	2018/04/24 18:03:57	1.1.1.1
+++ Net2/vm/vm_fault.c	2018/04/24 18:14:52	1.1.1.4
@@ -33,7 +33,8 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)vm_fault.c	7.6 (Berkeley) 5/7/91
+ *	from: @(#)vm_fault.c	7.6 (Berkeley) 5/7/91
+ *	vm_fault.c,v 1.6.2.1 1993/07/25 21:25:21 cgd Exp
  *
  *
  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
@@ -90,6 +91,7 @@
  *	The map in question must be referenced, and remains so.
  *	Caller may hold no locks.
  */
+int
 vm_fault(map, vaddr, fault_type, change_wiring)
 	vm_map_t	map;
 	vm_offset_t	vaddr;
@@ -253,6 +255,7 @@ vm_fault(map, vaddr, fault_type, change_
 #else
 				PAGE_ASSERT_WAIT(m, !change_wiring);
 				UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX! */
 				thread_block();
 				vm_object_deallocate(first_object);
 				goto RetryFault;
@@ -288,6 +291,7 @@ vm_fault(map, vaddr, fault_type, change_
 
 				PAGE_ASSERT_WAIT(m, !change_wiring);
 				UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX */
 				thread_block();
 				vm_object_deallocate(first_object);
 				goto RetryFault;
@@ -524,6 +528,7 @@ vm_fault(map, vaddr, fault_type, change_
 			 */
 
 			vm_page_lock_queues();
+			vm_page_activate(m);
 			vm_page_deactivate(m);
 			pmap_page_protect(VM_PAGE_TO_PHYS(m), VM_PROT_NONE);
 			vm_page_unlock_queues();
@@ -637,6 +642,7 @@ vm_fault(map, vaddr, fault_type, change_
 					copy_object->ref_count--;
 					vm_object_unlock(copy_object);
 					UNLOCK_THINGS;
+thread_wakeup(&vm_pages_needed); /* XXX */
 					thread_block();
 					vm_object_deallocate(first_object);
 					goto RetryFault;
@@ -883,7 +889,6 @@ vm_fault(map, vaddr, fault_type, change_
 	UNLOCK_AND_DEALLOCATE;
 
 	return(KERN_SUCCESS);
-
 }
 
 /*
@@ -891,7 +896,8 @@ vm_fault(map, vaddr, fault_type, change_
  *
  *	Wire down a range of virtual addresses in a map.
  */
-void vm_fault_wire(map, start, end)
+void
+vm_fault_wire(map, start, end)
 	vm_map_t	map;
 	vm_offset_t	start, end;
 {
@@ -925,7 +931,8 @@ void vm_fault_wire(map, start, end)
  *
  *	Unwire a range of virtual addresses in a map.
  */
-void vm_fault_unwire(map, start, end)
+void
+vm_fault_unwire(map, start, end)
 	vm_map_t	map;
 	vm_offset_t	start, end;
 {
@@ -974,7 +981,8 @@ void vm_fault_unwire(map, start, end)
  *		entry corresponding to a main map entry that is wired down).
  */
 
-void vm_fault_copy_entry(dst_map, src_map, dst_entry, src_entry)
+void
+vm_fault_copy_entry(dst_map, src_map, dst_entry, src_entry)
 	vm_map_t	dst_map;
 	vm_map_t	src_map;
 	vm_map_entry_t	dst_entry;