--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/g1RegionMarkStatsCache.inline.hpp	Mon Mar 26 16:51:43 2018 +0200
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_GC_G1_G1REGIONMARKSTATSCACHE_INLINE_HPP
+#define SHARE_VM_GC_G1_G1REGIONMARKSTATSCACHE_INLINE_HPP
+
+#include "gc/g1/g1RegionMarkStatsCache.hpp"
+#include "runtime/atomic.hpp"
+
+inline G1RegionMarkStatsCache::G1RegionMarkStatsCacheEntry* G1RegionMarkStatsCache::find_for_add(uint region_idx) {
+  uint const cache_idx = hash(region_idx);
+
+  G1RegionMarkStatsCacheEntry* cur = &_cache[cache_idx];
+  if (cur->_region_idx != region_idx) {
+    evict(cache_idx);
+    cur->_region_idx = region_idx;
+    _cache_misses++;
+  } else {
+    _cache_hits++;
+  }
+
+  return cur;
+}
+
+inline void G1RegionMarkStatsCache::evict(uint idx) {
+  G1RegionMarkStatsCacheEntry* cur = &_cache[idx];
+  if (cur->_stats._live_words != 0) {
+    Atomic::add(cur->_stats._live_words, &_target[cur->_region_idx]._live_words);
+  }
+  cur->clear();
+}
+
+#endif // SHARE_VM_GC_G1_G1REGIONMARKSTATSCACHE_INLINE_HPP