Changed the PageIterator class so that it only returns pages existing...

src/spaces.cc

Index: src/spaces.cc
===================================================================
--- src/spaces.cc	(revision 1888)
+++ src/spaces.cc	(working copy)
@@ -111,17 +111,17 @@
 // -----------------------------------------------------------------------------
 // PageIterator
 
-PageIterator::PageIterator(PagedSpace* space, Mode mode) {
-  cur_page_ = space->first_page_;
+PageIterator::PageIterator(PagedSpace* space, Mode mode) : space_(space) {
+  prev_page_ = NULL;
   switch (mode) {
     case PAGES_IN_USE:
-      stop_page_ = space->AllocationTopPage()->next_page();
+      stop_page_ = space->AllocationTopPage();
       break;
     case PAGES_USED_BY_MC:
-      stop_page_ = space->MCRelocationTopPage()->next_page();
+      stop_page_ = space->MCRelocationTopPage();
       break;
     case ALL_PAGES:
-      stop_page_ = Page::FromAddress(NULL);
+      stop_page_ = space->last_page_;
       break;
     default:
       UNREACHABLE();
@@ -498,6 +498,7 @@
 
   for (Page* p = first_page_; p->is_valid(); p = p->next_page()) {
     p->ClearRSet();
+    last_page_ = p;
   }
 
   // Use first_page_ for allocation.
@@ -679,6 +680,7 @@
   // Clear remembered set of new pages.
   while (p->is_valid()) {
     p->ClearRSet();
+    last_page_ = p;
     p = p->next_page();
   }
 
@@ -727,6 +729,7 @@
   // pages_to_keep.
   while (p->is_valid()) {
     pages_to_keep++;
+    last_page_ = p;
     p = p->next_page();
   }