From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754022AbYI3Day (ORCPT ); Mon, 29 Sep 2008 23:30:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751642AbYI3Dar (ORCPT ); Mon, 29 Sep 2008 23:30:47 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:50397 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751073AbYI3Daq (ORCPT ); Mon, 29 Sep 2008 23:30:46 -0400 Message-ID: <48E19CE8.8070006@cn.fujitsu.com> Date: Tue, 30 Sep 2008 11:28:40 +0800 From: Lai Jiangshan User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) MIME-Version: 1.0 To: Ingo Molnar CC: Mathieu Desnoyers , Linux Kernel Mailing List Subject: [PATCH] markers: let marker_debug as module parameter Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org if we want to enable marker debug output, we have to modify the code and remake/reinstall the kernel in current code. this patch enable marker_debug to be set when kernel start. Signed-off-by: Lai Jiangshan --- diff --git a/kernel/marker.c b/kernel/marker.c index 9f76c4a..5d8404f 100644 --- a/kernel/marker.c +++ b/kernel/marker.c @@ -28,8 +28,9 @@ extern struct marker __start___markers[]; extern struct marker __stop___markers[]; -/* Set to 1 to enable marker debug output */ -static const int marker_debug; +static int marker_debug; +module_param(marker_debug, bool, 0); +MODULE_PARM_DESC(marker_debug, "Set to 1 to enable marker debug output"); /* * markers_mutex nests inside module_mutex. Markers mutex protects the builtin