From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753279AbYJAQNJ (ORCPT ); Wed, 1 Oct 2008 12:13:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752475AbYJAQM0 (ORCPT ); Wed, 1 Oct 2008 12:12:26 -0400 Received: from smtp.polymtl.ca ([132.207.4.11]:38245 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753279AbYJAQMZ (ORCPT ); Wed, 1 Oct 2008 12:12:25 -0400 Message-Id: <20081001160425.263709609@polymtl.ca> References: <20081001160324.889716972@polymtl.ca> User-Agent: quilt/0.46-1 Date: Wed, 01 Oct 2008 12:03:27 -0400 From: Mathieu Desnoyers To: Ingo Molnar , linux-kernel@vger.kernel.org Cc: Mathieu Desnoyers , Rusty Russell , akpm@linux-foundation.org, "Frank Ch. Eigler" Subject: [patch 3/5] Markers : probe example fix teardown Content-Disposition: inline; filename=markers-probe-example-fix-teardown.patch X-Poly-FromMTA: (test.casi.polymtl.ca [132.207.72.60]) at Wed, 1 Oct 2008 16:10:56 +0000 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Need a marker_synchronize_unregister() before the end of exit() to make sure every probe callers have exited the non preemptible section and thus are not executing the probe code anymore. Signed-off-by: Mathieu Desnoyers CC: Ingo Molnar CC: Rusty Russell CC: akpm@linux-foundation.org CC: "Frank Ch. Eigler" --- samples/markers/probe-example.c | 1 + 1 file changed, 1 insertion(+) Index: linux-2.6-lttng/samples/markers/probe-example.c =================================================================== --- linux-2.6-lttng.orig/samples/markers/probe-example.c 2008-07-31 09:11:13.000000000 -0400 +++ linux-2.6-lttng/samples/markers/probe-example.c 2008-07-31 09:18:54.000000000 -0400 @@ -81,6 +81,7 @@ static void __exit probe_fini(void) probe_array[i].probe_func, &probe_array[i]); printk(KERN_INFO "Number of event b : %u\n", atomic_read(&eventb_count)); + marker_synchronize_unregister(); } module_init(probe_init); -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68