-extern uns sorter_threads, sorter_thread_threshold, sorter_thread_chunk;
-extern uns sorter_radix_threshold;
-extern u64 sorter_bufsize;
-extern struct fb_params sorter_fb_params;
+extern uns sorter_threads;
+extern u64 sorter_bufsize, sorter_small_input;
+extern u64 sorter_thread_threshold, sorter_thread_chunk, sorter_radix_threshold;
+extern struct fb_params sorter_fb_params, sorter_small_fb_params;