Log errors on cache init

The more (logging) the merrier

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

src/mngt/ocf_mngt_cache.c

@@ -826,37 +826,59 @@ static void _ocf_mngt_load_metadata(ocf_pipeline_t pipeline,
  * @brief allocate memory for new cache, add it to cache queue, set initial
  * values and running state
  */
-static int _ocf_mngt_init_new_cache(struct ocf_cache_mngt_init_params *params)
+static int _ocf_mngt_init_new_cache(struct ocf_cache_mngt_init_params *params,
+		char *new_cache_name)
 {
 	ocf_cache_t cache = env_vzalloc(sizeof(*cache));
 	int result;
 
-	if (!cache)
+	if (!cache) {
+		ocf_log(params->ctx, log_err, "Failed to allocate cache %s\n",
+				new_cache_name);
 		return -OCF_ERR_NO_MEM;
+	}
 
 	if (ocf_mngt_cache_lock_init(cache)) {
+		ocf_log(params->ctx, log_err,
+				"Failed to allocate cache %s lock\n",
+				new_cache_name);
 		result = -OCF_ERR_NO_MEM;
 		goto alloc_err;
 	}
 
 	/* Lock cache during setup - this trylock should always succeed */
 	result = ocf_mngt_cache_trylock(cache);
-	if (result)
+	if (result) {
+		ocf_log(params->ctx, log_crit,
+				"Failed to lock the newly created cache %s\n",
+				new_cache_name);
 		goto lock_init_err;
+	}
 
 	if (env_mutex_init(&cache->flush_mutex)) {
+		ocf_log(params->ctx, log_err,
+				"Failed to allocate cache %s flush lock\n",
+				new_cache_name);
 		result = -OCF_ERR_NO_MEM;
 		goto lock_err;
 	}
 
 	INIT_LIST_HEAD(&cache->io_queues);
 	result = env_spinlock_init(&cache->io_queues_lock);
-	if (result)
+	if (result) {
+		ocf_log(params->ctx, log_err,
+				"Failed to allocate cache %s queue lock\n",
+				new_cache_name);
 		goto mutex_err;
+	}
 
 	result = !ocf_refcnt_inc(&cache->refcnt.cache);
-	if (result)
+	if (result) {
+		ocf_log(params->ctx, log_crit,
+				"Failed to increment %s refcnt\n",
+				new_cache_name);
 		goto cache_refcnt_inc_err;
+	}
 
 	/* start with freezed metadata ref counter to indicate detached device*/
 	ocf_refcnt_freeze(&cache->refcnt.metadata);
@@ -957,7 +979,7 @@ static int _ocf_mngt_init_prepare_cache(struct ocf_cache_mngt_init_params *param
 
 	ocf_log(param->ctx, log_info, "Inserting cache %s\n", cfg->name);
 
-	ret = _ocf_mngt_init_new_cache(param);
+	ret = _ocf_mngt_init_new_cache(param, cfg->name);
 	if (ret)
 		goto out;