seq_cutoff: Allocate seq cutoff structures dynamically per core

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

src/mngt/ocf_mngt_cache.c

@@ -352,6 +352,9 @@ static void _ocf_mngt_close_all_uninitialized_cores(
 
 		--j;
 
+		if (cache->core[i].seq_cutoff)
+			ocf_core_seq_cutoff_deinit(&cache->core[i]);
+
 		env_free(cache->core[i].counters);
 		cache->core[i].counters = NULL;
 
@@ -438,7 +441,9 @@ static int _ocf_mngt_init_instance_add_cores(
 			continue;
 		}
 
-		ocf_core_seq_cutoff_init(core);
+		ret = ocf_core_seq_cutoff_init(core);
+		if (ret < 0)
+			goto err;
 
 		length = ocf_volume_get_length(&core->volume);
 		if (length != core->conf_meta->length) {

src/mngt/ocf_mngt_core.c

@@ -93,6 +93,7 @@ struct ocf_cache_add_core_context {
 		bool volume_opened : 1;
 		bool clean_pol_added : 1;
 		bool counters_allocated : 1;
+		bool cutoff_initialized: 1;
 	} flags;
 };
 
@@ -129,6 +130,9 @@ static void _ocf_mngt_cache_add_core_handle_error(
 					core_id);
 	}
 
+	if (context->flags.cutoff_initialized)
+		ocf_core_seq_cutoff_deinit(core);
+
 	if (context->flags.volume_opened)
 		ocf_volume_close(volume);
 
@@ -292,8 +296,6 @@ static void ocf_mngt_cache_try_add_core_insert(ocf_pipeline_t pipeline,
 	if (!(--cache->ocf_core_inactive_count))
 		env_bit_clear(ocf_cache_state_incomplete, &cache->cache_state);
 
-	ocf_core_seq_cutoff_init(core);
-
 	OCF_PL_NEXT_RET(pipeline);
 
 error_after_open:
@@ -412,7 +414,10 @@ static void ocf_mngt_cache_add_core_insert(ocf_pipeline_t pipeline,
 		context->flags.clean_pol_added = true;
 	}
 
-	ocf_core_seq_cutoff_init(core);
+	result = ocf_core_seq_cutoff_init(core);
+	if (result)
+		OCF_PL_FINISH_RET(pipeline, result);
+	context->flags.cutoff_initialized = true;
 
 	/* When adding new core to cache, allocate stat counters */
 	core->counters =