src/hotspot/os/linux/os_linux.cpp

rev 47414 : Move polling page allocation to SafepointMechanism initialization

*** 4804,4827 ****
  
    os::Posix::init_2();
  
    Linux::fast_thread_clock_init();
  
-   // Allocate a single page and mark it as readable for safepoint polling
-   address polling_page = (address) ::mmap(NULL, Linux::page_size(), PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
-   guarantee(polling_page != MAP_FAILED, "os::init_2: failed to allocate polling page");
- 
-   os::set_polling_page(polling_page);
-   log_info(os)("SafePoint Polling address: " INTPTR_FORMAT, p2i(polling_page));
- 
-   if (!UseMembar) {
-     address mem_serialize_page = (address) ::mmap(NULL, Linux::page_size(), PROT_READ | PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
-     guarantee(mem_serialize_page != MAP_FAILED, "mmap Failed for memory serialize page");
-     os::set_memory_serialize_page(mem_serialize_page);
-     log_info(os)("Memory Serialize Page address: " INTPTR_FORMAT, p2i(mem_serialize_page));
-   }
- 
    // initialize suspend/resume support - must do this before signal_sets_init()
    if (SR_initialize() != 0) {
      perror("SR_initialize failed");
      return JNI_ERR;
    }
--- 4804,4813 ----