Index: subversion/libsvn_client/copy.c
===================================================================
--- subversion/libsvn_client/copy.c	(revision 30040)
+++ subversion/libsvn_client/copy.c	(working copy)
@@ -997,6 +997,9 @@
     {
       path_driver_info_t *info = APR_ARRAY_IDX(path_infos, i,
                                                path_driver_info_t *);
+      /* Check for cancellation */
+      if (ctx->cancel_func)
+        SVN_ERR(ctx->cancel_func(ctx->cancel_baton));
       apr_hash_t *mergeinfo;
       SVN_ERR(calculate_target_mergeinfo(ra_session, &mergeinfo, NULL,
                                          info->src_url, info->src_revnum, 
@@ -1267,6 +1270,10 @@
       svn_client_commit_item3_t *item =
         APR_ARRAY_IDX(commit_items, i, svn_client_commit_item3_t *);
 
+      /* Check for cancellation */
+      if (ctx->cancel_func)
+        SVN_ERR(ctx->cancel_func(ctx->cancel_baton));
+
       /* Set the mergeinfo for the destination to the combined merge
          info known to the WC and the repository. */
       item->outgoing_prop_changes = apr_array_make(pool, 1,