- Disassociate old page size from new allocatable size.

runtime/vm/pages.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/pages.h"
 
 #include "platform/assert.h"
 #include "vm/compiler_stats.h"
 #include "vm/gc_marker.h"
 #include "vm/gc_sweeper.h"
@@ skipping 14 matching lines @@
             "Print free list statistics after a GC");
 
 HeapPage* HeapPage::Initialize(VirtualMemory* memory, PageType type) {
   ASSERT(memory->size() > VirtualMemory::PageSize());
   bool is_executable = (type == kExecutable);
   memory->Commit(is_executable);
 
   HeapPage* result = reinterpret_cast<HeapPage*>(memory->address());
   result->memory_ = memory;
   result->next_ = NULL;
-  result->used_ = 0;
   result->executable_ = is_executable;
   return result;
 }
 
 
 HeapPage* HeapPage::Allocate(intptr_t size, PageType type) {
-  VirtualMemory* memory =
-      VirtualMemory::ReserveAligned(size, PageSpace::kPageAlignment);
+  VirtualMemory* memory = VirtualMemory::Reserve(size);
   return Initialize(memory, type);
 }
 
 
 void HeapPage::Deallocate() {
   // The memory for this object will become unavailable after the delete below.
   delete memory_;
 }
 
 
@@ skipping 554 matching lines @@
     return 0;
   } else {
     ASSERT(total_time >= gc_time);
     int result= static_cast<int>((static_cast<double>(gc_time) /
                              static_cast<double>(total_time)) * 100);
     return result;
   }
 }
 
 }  // namespace dart