diff --git a/modules/cas_cache/context.c b/modules/cas_cache/context.c
index b287625..5215bab 100644
--- a/modules/cas_cache/context.c
+++ b/modules/cas_cache/context.c
@@ -282,21 +282,6 @@ static void _cas_ctx_cleaner_stop(ocf_cleaner_t c)
 	return cas_stop_cleaner_thread(c);
 }
 
-static int _cas_ctx_metadata_updater_init(ocf_metadata_updater_t mu)
-{
-	return cas_create_metadata_updater_thread(mu);
-}
-
-static void _cas_ctx_metadata_updater_kick(ocf_metadata_updater_t mu)
-{
-	return cas_kick_metadata_updater_thread(mu);
-}
-
-static void _cas_ctx_metadata_updater_stop(ocf_metadata_updater_t mu)
-{
-	return cas_stop_metadata_updater_thread(mu);
-}
-
 #define CAS_LOG_FORMAT_STRING_MAX_LEN 256
 
 static int _cas_ctx_logger_open(ocf_logger_t logger)
@@ -406,12 +391,6 @@ static const struct ocf_ctx_config ctx_cfg = {
 			.stop = _cas_ctx_cleaner_stop,
 		},
 
-		.metadata_updater = {
-			.init = _cas_ctx_metadata_updater_init,
-			.kick = _cas_ctx_metadata_updater_kick,
-			.stop = _cas_ctx_metadata_updater_stop,
-		},
-
 		.logger = {
 			.open = _cas_ctx_logger_open,
 			.close = _cas_ctx_logger_close,
@@ -434,7 +413,7 @@ int cas_initialize_context(void)
 
 	cas_bvec_pool = env_mpool_create(sizeof(struct blk_data),
 			sizeof(struct bio_vec), GFP_NOIO, 7, true, NULL,
-			"cas_biovec");
+			"cas_biovec", true);
 
 	if (!cas_bvec_pool) {
 		printk(KERN_ERR "Cannot create BIO vector memory pool\n");
diff --git a/modules/cas_cache/layer_cache_management.c b/modules/cas_cache/layer_cache_management.c
index 8d8ae0a..764f0ed 100644
--- a/modules/cas_cache/layer_cache_management.c
+++ b/modules/cas_cache/layer_cache_management.c
@@ -2048,7 +2048,7 @@ int cache_mngt_init_instance(struct ocf_mngt_cache_config *cfg,
 	/* Start cache. Returned cache instance will be locked as it was set
 	 * in configuration.
 	 */
-	result = ocf_mngt_cache_start(cas_ctx, &cache, cfg);
+	result = ocf_mngt_cache_start(cas_ctx, &cache, cfg, NULL);
 	if (result) {
 		kthread_stop(context->rollback_thread);
 		kfree(context);
diff --git a/modules/cas_cache/ocf_env.c b/modules/cas_cache/ocf_env.c
index f627873..03b008d 100644
--- a/modules/cas_cache/ocf_env.c
+++ b/modules/cas_cache/ocf_env.c
@@ -174,7 +174,7 @@ err:
 	return NULL;
 }
 
-env_allocator *env_allocator_create(uint32_t size, const char *name)
+env_allocator *env_allocator_create(uint32_t size, const char *name, bool zero)
 {
 	return env_allocator_create_extended(size, name, -1);
 }
diff --git a/modules/cas_cache/ocf_env.h b/modules/cas_cache/ocf_env.h
index d879b04..2503d00 100644
--- a/modules/cas_cache/ocf_env.h
+++ b/modules/cas_cache/ocf_env.h
@@ -82,7 +82,7 @@ typedef struct _env_allocator env_allocator;
 env_allocator *env_allocator_create_extended(uint32_t size, const char *name,
 	int rpool_limit);
 
-env_allocator *env_allocator_create(uint32_t size, const char *name);
+env_allocator *env_allocator_create(uint32_t size, const char *name, bool zero);
 
 void env_allocator_destroy(env_allocator *allocator);
 
diff --git a/modules/cas_cache/threads.c b/modules/cas_cache/threads.c
index ca3ef92..5118e20 100644
--- a/modules/cas_cache/threads.c
+++ b/modules/cas_cache/threads.c
@@ -115,38 +115,6 @@ static int _cas_cleaner_thread(void *data)
 	return 0;
 }
 
-static int _cas_metadata_updater_thread(void *data)
-{
-	ocf_metadata_updater_t mu = data;
-	struct cas_thread_info *info;
-
-	BUG_ON(!mu);
-
-	/* complete the creation of the thread */
-	info = ocf_metadata_updater_get_priv(mu);
-	BUG_ON(!info);
-
-	CAS_DAEMONIZE(info->thread->comm);
-
-	complete(&info->compl);
-
-	do {
-		if (atomic_read(&info->stop))
-			break;
-
-		atomic_set(&info->kicked, 0);
-		if (ocf_metadata_updater_run(mu))
-			continue;
-
-		wait_event_interruptible(info->wq, atomic_read(&info->stop) ||
-				atomic_read(&info->kicked));
-	} while (true);
-
-	complete_and_exit(&info->compl, 0);
-
-	return 0;
-}
-
 static int _cas_create_thread(struct cas_thread_info **pinfo,
 		int (*threadfn)(void *), void *priv, int cpu,
 		const char *fmt, ...)
@@ -274,34 +242,3 @@ void cas_stop_cleaner_thread(ocf_cleaner_t c)
 	_cas_stop_thread(info);
 }
 
-int cas_create_metadata_updater_thread(ocf_metadata_updater_t mu)
-{
-	struct cas_thread_info *info;
-	int result;
-
-	result = _cas_create_thread(&info, _cas_metadata_updater_thread,
-			mu, CAS_CPUS_ALL, "cas_mu_%s",
-			ocf_cache_get_name(ocf_metadata_updater_get_cache(mu)));
-	if (!result) {
-		ocf_metadata_updater_set_priv(mu, info);
-		_cas_start_thread(info);
-	}
-
-	return result;
-}
-
-void cas_kick_metadata_updater_thread(ocf_metadata_updater_t mu)
-{
-	struct cas_thread_info *info = ocf_metadata_updater_get_priv(mu);
-	atomic_set(&info->kicked, 1);
-	wake_up(&info->wq);
-}
-
-
-void cas_stop_metadata_updater_thread(ocf_metadata_updater_t mu)
-{
-	struct cas_thread_info *info = ocf_metadata_updater_get_priv(mu);
-	ocf_metadata_updater_set_priv(mu, NULL);
-	_cas_stop_thread(info);
-}
-
diff --git a/modules/cas_cache/threads.h b/modules/cas_cache/threads.h
index babc2b2..208a5da 100644
--- a/modules/cas_cache/threads.h
+++ b/modules/cas_cache/threads.h
@@ -20,8 +20,4 @@ int cas_create_cleaner_thread(ocf_cleaner_t c);
 void cas_kick_cleaner_thread(ocf_cleaner_t c);
 void cas_stop_cleaner_thread(ocf_cleaner_t c);
 
-int cas_create_metadata_updater_thread(ocf_metadata_updater_t mu);
-void cas_kick_metadata_updater_thread(ocf_metadata_updater_t mu);
-void cas_stop_metadata_updater_thread(ocf_metadata_updater_t mu);
-
 #endif /* __THREADS_H__ */
diff --git a/modules/cas_cache/utils/utils_mpool.c b/modules/cas_cache/utils/utils_mpool.c
index 1033371..a44fbfc 100644
--- a/modules/cas_cache/utils/utils_mpool.c
+++ b/modules/cas_cache/utils/utils_mpool.c
@@ -29,7 +29,7 @@ struct env_mpool {
 struct env_mpool *env_mpool_create(uint32_t hdr_size, uint32_t elem_size,
 		int flags, int mpool_max, bool fallback,
 		const uint32_t limits[env_mpool_max],
-		const char *name_perfix)
+		const char *name_perfix, bool zero)
 {
 	uint32_t i;
 	char name[MPOOL_ALLOCATOR_NAME_MAX] = { '\0' };
diff --git a/modules/cas_cache/utils/utils_mpool.h b/modules/cas_cache/utils/utils_mpool.h
index e1506ca..d4443a9 100644
--- a/modules/cas_cache/utils/utils_mpool.h
+++ b/modules/cas_cache/utils/utils_mpool.h
@@ -37,13 +37,14 @@ struct env_mpool;
  * 		order or NULL if defaults are to be used. Array should have
  * 		mpool_max elements
  * @param name_prefix Format name prefix
+ * @param zero Unused parameter
  *
  * @return CAS memory pool
  */
 struct env_mpool *env_mpool_create(uint32_t hdr_size, uint32_t elem_size,
 		int flags, int mpool_max, bool fallback,
 		const uint32_t limits[env_mpool_max],
-		const char *name_perfix);
+		const char *name_prefix, bool zero);
 
 /**
  * @brief Destroy existing memory pool
diff --git a/ocf b/ocf
index 5b3a960..73c3e97 160000
--- a/ocf
+++ b/ocf
@@ -1 +1 @@
-Subproject commit 5b3a9606d3eab2e1157d2d692d1f4879fbb527ae
+Subproject commit 73c3e97f43b482ed8162d18314054a0b5d4b5d69