From adcfd257358fcd810f75d41bda7b916595e5dcdf Mon Sep 17 00:00:00 2001
From: Ioi Lam <iklam@openjdk.org>
Date: Wed, 25 Jan 2023 20:04:50 +0000
Subject: [PATCH] 8301098: Remove dead code
 FileMapInfo::stop_sharing_and_unmap()

Reviewed-by: coleenp, ccheung
---
 src/hotspot/share/cds/filemap.cpp | 23 -----------------------
 src/hotspot/share/cds/filemap.hpp |  3 ---
 2 files changed, 26 deletions(-)

diff --git a/src/hotspot/share/cds/filemap.cpp b/src/hotspot/share/cds/filemap.cpp
index 3c9bbc180e9..1a3fb8b949d 100644
--- a/src/hotspot/share/cds/filemap.cpp
+++ b/src/hotspot/share/cds/filemap.cpp
@@ -2755,29 +2755,6 @@ bool FileMapInfo::validate_header() {
   }
 }
 
-// Unmap mapped regions of shared space.
-void FileMapInfo::stop_sharing_and_unmap(const char* msg) {
-  MetaspaceShared::set_shared_metaspace_range(nullptr, nullptr, nullptr);
-
-  FileMapInfo *map_info = FileMapInfo::current_info();
-  if (map_info) {
-    map_info->fail_continue("%s", msg);
-    for (int i = 0; i < MetaspaceShared::num_non_heap_regions; i++) {
-      if (!HeapShared::is_heap_region(i)) {
-        map_info->unmap_region(i);
-      }
-    }
-    // Dealloc the archive heap regions only without unmapping. The regions are part
-    // of the java heap. Unmapping of the heap regions are managed by GC.
-    map_info->dealloc_heap_regions(open_heap_regions,
-                                   num_open_heap_regions);
-    map_info->dealloc_heap_regions(closed_heap_regions,
-                                   num_closed_heap_regions);
-  } else if (DumpSharedSpaces) {
-    fail_stop("%s", msg);
-  }
-}
-
 #if INCLUDE_JVMTI
 ClassPathEntry** FileMapInfo::_classpath_entries_for_jvmti = nullptr;
 
diff --git a/src/hotspot/share/cds/filemap.hpp b/src/hotspot/share/cds/filemap.hpp
index bfe2f4c10d3..43f04c6b2df 100644
--- a/src/hotspot/share/cds/filemap.hpp
+++ b/src/hotspot/share/cds/filemap.hpp
@@ -492,9 +492,6 @@ public:
     NOT_CDS(return false;)
   }
 
-  // Stop CDS sharing and unmap CDS regions.
-  static void stop_sharing_and_unmap(const char* msg);
-
   static void allocate_shared_path_table(TRAPS);
   static void copy_shared_path_table(ClassLoaderData* loader_data, TRAPS);
   static void clone_shared_path_table(TRAPS);