Merge 5.3 -> 5.5

1 files changed, 2 insertions, 1 deletions

diff --git a/include/keycache.h b/include/keycache.h
index da6624725e7..8fa9bf1cd18 100644
--- a/include/keycache.h
+++ b/include/keycache.h
@@ -148,9 +148,10 @@ typedef struct st_key_cache
   ulonglong param_partitions;    /* number of the key cache partitions       */
   my_bool key_cache_inited;      /* <=> key cache has been created           */
   my_bool can_be_used;           /* usage of cache for read/write is allowed */
-  my_bool in_init;		 /* Set to 1 in MySQL during init/resize     */
+  my_bool in_init;               /* set to 1 in MySQL during init/resize     */
   uint partitions;               /* actual number of partitions              */
   size_t key_cache_mem_size;     /* specified size of the cache memory       */
+  pthread_mutex_t op_lock;       /* to serialize operations like 'resize'    */
 } KEY_CACHE;