src/share/vm/runtime/virtualspace.cpp

rev 7525 : 8066875: VirtualSpace does not use large pages
rev 7526 : 8066875: VirtualSpace does not use large pages (01)

@@ -36,11 +36,11 @@
 ReservedSpace::ReservedSpace() : _base(NULL), _size(0), _noaccess_prefix(0),
     _alignment(0), _special(false), _executable(false) {
 }
 
 ReservedSpace::ReservedSpace(size_t size) {
-  size_t page_size = os::page_size_for_region(size, 1);
+  size_t page_size = os::page_size_for_region_aligned(size, 1);
   bool large_pages = page_size != (size_t)os::vm_page_size();
   // Don't force the alignment to be large page aligned,
   // since that will waste memory.
   size_t alignment = os::vm_allocation_granularity();
   initialize(size, alignment, large_pages, NULL, 0, false);

@@ -355,11 +355,11 @@
   _executable             = false;
 }
 
 
 bool VirtualSpace::initialize(ReservedSpace rs, size_t committed_size) {
-  const size_t max_commit_granularity = os::page_size_for_region(rs.size(), 1);
+  const size_t max_commit_granularity = os::page_size_for_region_unaligned(rs.size(), 1);
   return initialize_with_granularity(rs, committed_size, max_commit_granularity);
 }
 
 bool VirtualSpace::initialize_with_granularity(ReservedSpace rs, size_t committed_size, size_t max_commit_granularity) {
   if(!rs.is_reserved()) return false;  // allocation failed.

@@ -990,11 +990,11 @@
     case Reserve:
       return vs.initialize(rs, 0);
     case Disable:
       return vs.initialize_with_granularity(rs, 0, os::vm_page_size());
     case Commit:
-      return vs.initialize_with_granularity(rs, 0, os::page_size_for_region(rs.size(), 1));
+      return vs.initialize_with_granularity(rs, 0, os::page_size_for_region_unaligned(rs.size(), 1));
     }
   }
 
  public:
   static void test_virtual_space_actual_committed_space(size_t reserve_size, size_t commit_size,