1 files changed, 12 insertions, 1 deletions
diff --git a/src/common/shared_cache.hpp b/src/common/shared_cache.hpp
index 69a4c06dfbf..178d1001be3 100644
--- a/src/common/shared_cache.hpp
+++ b/src/common/shared_cache.hpp
@@ -85,12 +85,23 @@ public:
     assert(weak_refs.empty());
   }
 
+  void clear(K key) {
+    VPtr val; // release any ref we have after we drop the lock
+    {
+      Mutex::Locker l(lock);
+      if (weak_refs.count(key)) {
+	val = weak_refs[key].lock();
+      }
+      lru_remove(key);
+    }
+  }
+
   void set_size(size_t new_size) {
     list<VPtr> to_release;
     {
       Mutex::Locker l(lock);
       max_size = new_size;
-      trim_cache(to_release);
+      trim_cache(&to_release);
     }
   }