src/os/aix/vm/os_aix.cpp

rev 8362 : CMS fence eliding using fancy synchronization when using UseCondCardMark

*** 3681,3690 ****
--- 3681,3696 ----
    }
  
    return JNI_OK;
  }
  
+ void *os::alloc_memory_serialize_page() {
+   address mem_serialize_page = (address) ::mmap(NULL, Aix::page_size(), PROT_READ | PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+   guarantee(mem_serialize_page != NULL, "mmap Failed for memory serialize page");
+   return mem_serialize_page;
+ }
+ 
  // Mark the polling page as unreadable
  void os::make_polling_page_unreadable(void) {
    if (!guard_memory((char*)_polling_page, Aix::page_size())) {
      fatal("Could not disable polling page");
    }