[src/trunk]: src/sys/uvm In uvm_map_pageable(), pass VM_PROT_NONE as access t...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/35dc00880022
branches:  trunk
changeset: 473227:35dc00880022
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Wed May 26 00:36:53 1999 +0000

description:
In uvm_map_pageable(), pass VM_PROT_NONE as access type to uvm_fault_wire()
for now.  XXX This needs to be reexamined.

diffstat:

 sys/uvm/uvm_map.c |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (25 lines):

diff -r c4bc9e5a4364 -r 35dc00880022 sys/uvm/uvm_map.c
--- a/sys/uvm/uvm_map.c Wed May 26 00:33:52 1999 +0000
+++ b/sys/uvm/uvm_map.c Wed May 26 00:36:53 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_map.c,v 1.43 1999/05/25 20:30:09 thorpej Exp $     */
+/*     $NetBSD: uvm_map.c,v 1.44 1999/05/26 00:36:53 thorpej Exp $     */
 
 /* 
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -2164,7 +2164,14 @@
                if (rv) {
                        entry->wired_count--;
                } else if (entry->wired_count == 1) {
-                       rv = uvm_fault_wire(map, entry->start, entry->end);
+                       /*
+                        * XXXTHORPEJ: VM_PROT_NONE.  What about COW
+                        * entries?  Should we enter with max_protection
+                        * so that we're guaranteed not even mod/ref
+                        * emulation faults will occur?
+                        */
+                       rv = uvm_fault_wire(map, entry->start, entry->end,
+                           VM_PROT_NONE);
                        if (rv) {
                                failed = entry->start;
                                entry->wired_count--;