OSD: map_cache should contain const OSDMap

Signed-off-by: Samuel Just <sam.just@inktank.com>

diff --git a/src/osd/OSD.h b/src/osd/OSD.h
index 6cc66c282f25d1a74c0ed10b750f789e934d44d9..ff45cdd69fe3ccb0b34952303edcafcd45f24d00 100644 (file)
--- a/src/osd/OSD.h
+++ b/src/osd/OSD.h
@@ -274,7 +274,7 @@ public:
 
   // osd map cache (past osd maps)
   Mutex map_cache_lock;
-  SharedLRU<epoch_t, OSDMap> map_cache;
+  SharedLRU<epoch_t, const OSDMap> map_cache;
   SimpleLRU<epoch_t, bufferlist> map_bl_cache;
   SimpleLRU<epoch_t, bufferlist> map_bl_inc_cache;