Deinitialize volume types in ocf internally.

Adapter can provide ops for data type deinitialization, if any additional
operations are required on deinitialization procedure.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>

inc/ocf_volume.h

@@ -141,6 +141,9 @@ struct ocf_volume_properties {
 
 	struct ocf_io_ops io_ops;
 		/*!< IO operations */
+
+	void (*deinit)(void);
+		/*!< Deinitialize volume type */
 };
 
 /**

src/ocf_core.c

@@ -532,6 +532,7 @@ const struct ocf_volume_properties ocf_core_volume_properties = {
 		.set_data = ocf_core_io_set_data,
 		.get_data = ocf_core_io_get_data,
 	},
+	.deinit = NULL,
 };
 
 static int ocf_core_io_allocator_init(ocf_io_allocator_t allocator,
@@ -584,8 +585,3 @@ int ocf_core_volume_type_init(ocf_ctx_t ctx)
 			&ocf_core_volume_properties,
 			&ocf_core_volume_extended);
 }
-
-void ocf_core_volume_type_deinit(ocf_ctx_t ctx)
-{
-	ocf_ctx_unregister_volume_type(ctx, 0);
-}

src/ocf_core_priv.h

@@ -95,6 +95,4 @@ bool ocf_core_is_valid(ocf_cache_t cache, ocf_core_id_t id);
 
 int ocf_core_volume_type_init(ocf_ctx_t ctx);
 
-void ocf_core_volume_type_deinit(ocf_ctx_t ctx);
-
 #endif /* __OCF_CORE_PRIV_H__ */

src/ocf_ctx.c

@@ -206,6 +206,17 @@ void ocf_ctx_get(ocf_ctx_t ctx)
 	env_atomic_inc(&ctx->ref_count);
 }
 
+/*
+ *
+ */
+static void ocf_ctx_unregister_volume_types(ocf_ctx_t ctx)
+{
+	int id;
+
+	for (id = 0; id < OCF_VOLUME_TYPE_MAX; id++)
+		ocf_ctx_unregister_volume_type(ctx, id);
+}
+
 /*
  *
  */
@@ -221,7 +232,7 @@ void ocf_ctx_put(ocf_ctx_t ctx)
 	env_rmutex_unlock(&ctx->lock);
 
 	ocf_mngt_core_pool_deinit(ctx);
-	ocf_core_volume_type_deinit(ctx);
+	ocf_ctx_unregister_volume_types(ctx);
 	ocf_req_allocator_deinit(ctx);
 	ocf_logger_close(&ctx->logger);
 	env_free(ctx);

src/ocf_volume.c

@@ -59,6 +59,9 @@ err:
 
 void ocf_volume_type_deinit(struct ocf_volume_type *type)
 {
+	if (type->properties->deinit)
+		type->properties->deinit();
+
 	ocf_io_allocator_deinit(&type->allocator);
 	env_free(type);
 }