Don't call utimes() on a dir that doesn't need its mtime changed.

diff --git a/generator.c b/generator.c
index 8e25aec..5273201 100644 (file)
--- a/generator.c
+++ b/generator.c
@@ -1949,8 +1949,12 @@ static void touch_up_dirs(struct file_list *flist, int ndx)
                fname = f_name(file, NULL);
                if (!(file->mode & S_IWUSR))
                        do_chmod(fname, file->mode);
-               if (need_retouch_dir_times)
-                       set_modtime(fname, file->modtime, file->mode);
+               if (need_retouch_dir_times) {
+                       STRUCT_STAT st;
+                       if (link_stat(fname, &st, 0) == 0
+                        && cmp_time(st.st_mtime, file->modtime) != 0)
+                               set_modtime(fname, file->modtime, file->mode);
+               }
                if (allowed_lull && !(counter % lull_mod))
                        maybe_send_keepalive();
                else if (!(counter & 0xFF))