diff --git a/kernel/mars_server.c b/kernel/mars_server.c
index 0a1eab2b..e47fe431 100644
--- a/kernel/mars_server.c
+++ b/kernel/mars_server.c
@@ -389,7 +389,6 @@ int handler_thread(void *data)
 			prev = make_brick_all(
 				brick->global,
 				NULL,
-				true,
 				_set_server_bio_params,
 				NULL,
 				path,
@@ -738,7 +737,7 @@ static int _server_thread(void *data)
 
 		MARS_DBG("got new connection #%d\n", handler_socket.s_debug_nr);
 
-		brick = (void*)mars_make_brick(&server_global, NULL, true, &server_brick_type, "handler", "handler");
+		brick = (void*)mars_make_brick(&server_global, NULL, &server_brick_type, "handler", "handler");
 		if (!brick) {
 			MARS_ERR("cannot create server instance\n");
 			mars_shutdown_socket(&handler_socket);
diff --git a/kernel/sy_old/mars_light.c b/kernel/sy_old/mars_light.c
index f22906ca..adb7ab90 100644
--- a/kernel/sy_old/mars_light.c
+++ b/kernel/sy_old/mars_light.c
@@ -1168,7 +1168,6 @@ int __make_copy(
 		aio =
 			make_brick_all(global,
 				       NULL,
-				       false,
 				       _set_bio_params,
 				       &clc[i],
 				       NULL,
@@ -1193,7 +1192,6 @@ int __make_copy(
 	copy =
 		make_brick_all(global,
 			       belongs,
-			       false,
 			       _set_copy_params,
 			       &cc,
 			       cc.fullpath[1],
@@ -2220,7 +2218,6 @@ int make_log_init(void *buf, struct mars_dent *dent)
 	aio_brick =
 		make_brick_all(global,
 			       aio_dent,
-			       false,
 			       _set_aio_params,
 			       NULL,
 			       aio_path,
@@ -2271,7 +2268,6 @@ int make_log_init(void *buf, struct mars_dent *dent)
 	trans_brick =
 		make_brick_all(global,
 			       dent,
-			       false,
 			       _set_trans_params,
 			       NULL,
 			       aio_path,
@@ -2659,7 +2655,6 @@ void _rotate_trans(struct mars_rotate *rot)
 		rot->next_relevant_brick =
 			make_brick_all(rot->global,
 				       rot->next_relevant_log,
-				       false,
 				       _set_aio_params,
 				       NULL,
 				       rot->next_relevant_log->d_path,
@@ -2773,7 +2768,6 @@ int _start_trans(struct mars_rotate *rot)
 	rot->relevant_brick =
 		make_brick_all(rot->global,
 			       rot->relevant_log,
-			       false,
 			       _set_aio_params,
 			       NULL,
 			       rot->relevant_log->d_path,
@@ -3068,7 +3062,6 @@ int make_bio(void *buf, struct mars_dent *dent)
 	brick =
 		make_brick_all(global,
 			       dent,
-			       false,
 			       _set_bio_params,
 			       NULL,
 			       dent->d_path,
@@ -3192,7 +3185,6 @@ int make_dev(void *buf, struct mars_dent *dent)
 	dev_brick =
 		make_brick_all(global,
 			       dent,
-			       false,
 			       _set_if_params,
 			       rot,
 			       dent->d_argv[0],
@@ -3271,7 +3263,6 @@ static int _make_direct(void *buf, struct mars_dent *dent)
 	brick = 
 		make_brick_all(global,
 			       dent,
-			       false,
 			       _set_bio_params,
 			       NULL,
 			       src_path,
@@ -3292,7 +3283,6 @@ static int _make_direct(void *buf, struct mars_dent *dent)
 	brick = 
 		make_brick_all(global,
 			       dent,
-			       false,
 			       _set_if_params,
 			       NULL,
 			       dent->d_argv[1],
diff --git a/kernel/sy_old/strategy.h b/kernel/sy_old/strategy.h
index 5fba6e9b..d1b072f3 100644
--- a/kernel/sy_old/strategy.h
+++ b/kernel/sy_old/strategy.h
@@ -94,7 +94,7 @@ extern void mars_free_dent_all(struct mars_global *global, struct list_head *anc
 // low-level brick instantiation
 
 extern struct mars_brick *mars_find_brick(struct mars_global *global, const void *brick_type, const char *path);
-extern struct mars_brick *mars_make_brick(struct mars_global *global, struct mars_dent *belongs, bool is_server, const void *_brick_type, const char *path, const char *name);
+extern struct mars_brick *mars_make_brick(struct mars_global *global, struct mars_dent *belongs, const void *_brick_type, const char *path, const char *name);
 extern int mars_free_brick(struct mars_brick *brick);
 extern int mars_kill_brick(struct mars_brick *brick);
 extern int mars_kill_brick_all(struct mars_global *global, struct list_head *anchor, bool use_dent_link);
@@ -121,7 +121,6 @@ extern struct mars_brick *path_find_brick(struct mars_global *global, const void
 extern struct mars_brick *make_brick_all(
 	struct mars_global *global,
 	struct mars_dent *belongs,
-	bool is_server,
 	int (*setup_fn)(struct mars_brick *brick, void *private),
 	void *private,
 	const char *new_name,
diff --git a/kernel/sy_old/sy_generic.c b/kernel/sy_old/sy_generic.c
index 01c22210..837a71f4 100644
--- a/kernel/sy_old/sy_generic.c
+++ b/kernel/sy_old/sy_generic.c
@@ -1090,7 +1090,7 @@ done:
 }
 EXPORT_SYMBOL_GPL(mars_free_brick);
 
-struct mars_brick *mars_make_brick(struct mars_global *global, struct mars_dent *belongs, bool is_server, const void *_brick_type, const char *path, const char *_name)
+struct mars_brick *mars_make_brick(struct mars_global *global, struct mars_dent *belongs, const void *_brick_type, const char *path, const char *_name)
 {
 	const char *name = brick_strdup(_name);
 	const char *names[] = { name, NULL };
@@ -1448,7 +1448,6 @@ EXPORT_SYMBOL_GPL(_sio_brick_type);
 struct mars_brick *make_brick_all(
 	struct mars_global *global,
 	struct mars_dent *belongs,
-	bool is_server,
 	int (*setup_fn)(struct mars_brick *brick, void *private),
 	void *private,
 	const char *new_name,
@@ -1565,7 +1564,7 @@ struct mars_brick *make_brick_all(
 			remote++;
 			MARS_DBG("substitute by remote brick '%s' on peer '%s'\n", new_name, remote);
 			
-			brick = mars_make_brick(global, belongs, is_server, _client_brick_type, new_path, new_name);
+			brick = mars_make_brick(global, belongs, _client_brick_type, new_path, new_name);
 			if (brick) {
 				struct client_brick *_brick = (void*)brick;
 				_brick->max_flying = 10000;
@@ -1589,7 +1588,7 @@ struct mars_brick *make_brick_all(
 
 	// create it...
 	if (!brick)
-		brick = mars_make_brick(global, belongs, is_server, new_brick_type, new_path, new_name);
+		brick = mars_make_brick(global, belongs, new_brick_type, new_path, new_name);
 	if (unlikely(!brick)) {
 		MARS_ERR("creation failed '%s' '%s'\n", new_path, new_name);
 		goto err;