--- src/sys/vfs/hammer/hammer_btree.c	2008/07/07 22:42:35	1.66
+++ src/sys/vfs/hammer/hammer_btree.c	2008/07/08 04:34:41	1.67
@@ -2163,13 +2163,10 @@ hammer_btree_do_propagation(hammer_curso
 	 */
 	mirror_tid = cursor->node->ondisk->mirror_tid;
 	KKASSERT(mirror_tid != 0);
-	ncursor = kmalloc(sizeof(*ncursor), M_HAMMER, M_WAITOK | M_ZERO);
-	hammer_dup_cursor(cursor, ncursor);
+	ncursor = hammer_push_cursor(cursor);
 	error = hammer_btree_mirror_propagate(ncursor, mirror_tid);
 	KKASSERT(error == 0);
-	hammer_done_cursor(ncursor);
-	kfree(ncursor, M_HAMMER);
-	hammer_lock_cursor(cursor);	/* shared-lock */
+	hammer_pop_cursor(cursor, ncursor);
 }