#include "thread-utils.h"
 #include "pack.h"
 
+struct repository;
+
 #define DEFAULT_DELTA_CACHE_SIZE (256 * 1024 * 1024)
 
 #define OE_DFS_STATE_BITS      2
 };
 
 struct packing_data {
+       struct repository *repo;
        struct object_entry *objects;
        uint32_t nr_objects, nr_alloc;
 
        unsigned char *layer;
 };
 
-void prepare_packing_data(struct packing_data *pdata);
+void prepare_packing_data(struct repository *r, struct packing_data *pdata);
 
 static inline void packing_data_lock(struct packing_data *pdata)
 {
                                     unsigned int tree_depth)
 {
        if (!pack->tree_depth)
-               ALLOC_ARRAY(pack->tree_depth, pack->nr_objects);
+               CALLOC_ARRAY(pack->tree_depth, pack->nr_alloc);
        pack->tree_depth[e - pack->objects] = tree_depth;
 }
 
                                unsigned char layer)
 {
        if (!pack->layer)
-               ALLOC_ARRAY(pack->layer, pack->nr_objects);
+               CALLOC_ARRAY(pack->layer, pack->nr_alloc);
        pack->layer[e - pack->objects] = layer;
 }