diff --git a/kernel/mars_server.c b/kernel/mars_server.c
index 574dbcb7..e7627fd8 100644
--- a/kernel/mars_server.c
+++ b/kernel/mars_server.c
@@ -407,7 +407,6 @@ int handler_thread(void *data)
 			}
 
 			status = mars_kill_brick_when_possible(handler_global,
-							       &handler_global->brick_anchor,
 							       false, NULL, true);
 			MARS_DBG("kill handler bricks (when possible) = %d\n", status);
 		}
@@ -854,7 +853,6 @@ static int _server_thread(void *data)
 			show_statistics(server_global, "server");
 
 		status = mars_kill_brick_when_possible(server_global,
-						       &server_global->brick_anchor,
 						       false, NULL, true);
 		MARS_DBG("kill server bricks (when possible) = %d\n", status);
 
diff --git a/kernel/sy_old/mars_main.c b/kernel/sy_old/mars_main.c
index 59ee3677..b89dffb7 100644
--- a/kernel/sy_old/mars_main.c
+++ b/kernel/sy_old/mars_main.c
@@ -6336,30 +6336,24 @@ static int _main_thread(void *data)
 
 		if (!mars_global->global_power.button) {
 			status = mars_kill_brick_when_possible(mars_global,
-							       &mars_global->brick_anchor,
 							       false, (void*)&copy_brick_type, true);
 			MARS_DBG("kill copy bricks (when possible) = %d\n", status);
 		}
 
 		status = mars_kill_brick_when_possible(mars_global,
-						       &mars_global->brick_anchor,
 						       false, NULL, false);
 		MARS_DBG("kill main bricks (when possible) = %d\n", status);
 
 		status = mars_kill_brick_when_possible(mars_global,
-						       &mars_global->brick_anchor,
 						       false, (void*)&client_brick_type, true);
 		MARS_DBG("kill client bricks (when possible) = %d\n", status);
 		status = mars_kill_brick_when_possible(mars_global,
-						       &mars_global->brick_anchor,
 						       false, (void*)&aio_brick_type, true);
 		MARS_DBG("kill aio    bricks (when possible) = %d\n", status);
 		status = mars_kill_brick_when_possible(mars_global,
-						       &mars_global->brick_anchor,
 						       false, (void*)&sio_brick_type, true);
 		MARS_DBG("kill sio    bricks (when possible) = %d\n", status);
 		status = mars_kill_brick_when_possible(mars_global,
-						       &mars_global->brick_anchor,
 						       false, (void*)&bio_brick_type, true);
 		MARS_DBG("kill bio    bricks (when possible) = %d\n", status);
 
diff --git a/kernel/sy_old/strategy.h b/kernel/sy_old/strategy.h
index 09beaa98..e1f41b83 100644
--- a/kernel/sy_old/strategy.h
+++ b/kernel/sy_old/strategy.h
@@ -169,7 +169,10 @@ extern struct mars_brick *mars_make_brick(struct mars_global *global, struct mar
 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);
-extern int mars_kill_brick_when_possible(struct mars_global *global, struct list_head *anchor, bool use_dent_link, const struct mars_brick_type *type, bool even_on);
+extern int mars_kill_brick_when_possible(struct mars_global *global,
+					 bool use_dent_link,
+					 const struct mars_brick_type *type,
+					 bool even_on);
 
 // mid-level brick instantiation (identity is based on path strings)
 
diff --git a/kernel/sy_old/sy_generic.c b/kernel/sy_old/sy_generic.c
index 5e850902..ae069ff1 100644
--- a/kernel/sy_old/sy_generic.c
+++ b/kernel/sy_old/sy_generic.c
@@ -2627,8 +2627,12 @@ done:
 }
 EXPORT_SYMBOL_GPL(mars_kill_brick_all);
 
-int mars_kill_brick_when_possible(struct mars_global *global, struct list_head *anchor, bool use_dent_link, const struct mars_brick_type *type, bool even_on)
+int mars_kill_brick_when_possible(struct mars_global *global,
+				  bool use_dent_link,
+				  const struct mars_brick_type *type,
+				  bool even_on)
 {
+	struct list_head *anchor = &global->brick_anchor;
 	int return_status = 0;
 	struct list_head *tmp;