Introduce core priv

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>

src/ocf_core.c

@@ -620,3 +620,15 @@ int ocf_core_get_info(ocf_core_t core, struct ocf_core_info *info)
 
 	return 0;
 }
+
+void ocf_core_set_priv(ocf_core_t core, void *priv)
+{
+	OCF_CHECK_NULL(core);
+	core->priv = priv;
+}
+
+void *ocf_core_get_priv(ocf_core_t core)
+{
+	OCF_CHECK_NULL(core);
+	return core->priv;
+}

src/ocf_core_priv.h

@@ -91,6 +91,8 @@ struct ocf_core {
 	uint32_t added : 1;
 
 	struct ocf_counters_core *counters;
+
+	void *priv;
 };
 
 bool ocf_core_is_valid(ocf_cache_t cache, ocf_core_id_t id);