Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752109AbaAOBpz (ORCPT ); Tue, 14 Jan 2014 20:45:55 -0500 Received: from LGEMRELSE7Q.lge.com ([156.147.1.151]:53517 "EHLO LGEMRELSE7Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752041AbaAOBpt (ORCPT ); Tue, 14 Jan 2014 20:45:49 -0500 X-AuditID: 9c930197-b7b7cae000000e34-6e-52d5e8483a18 From: Namhyung Kim To: Steven Rostedt , Arnaldo Carvalho de Melo Cc: Frederic Weisbecker , Peter Zijlstra , Ingo Molnar , Namhyung Kim , LKML , Jiri Olsa Subject: [PATCH 15/17] tools lib traceevent: Unregister handler when jbd2 plugin unloaded Date: Wed, 15 Jan 2014 10:45:38 +0900 Message-Id: <1389750340-15965-16-git-send-email-namhyung@kernel.org> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1389750340-15965-1-git-send-email-namhyung@kernel.org> References: <1389750340-15965-1-git-send-email-namhyung@kernel.org> X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The function handlers should be unregistered when the plugin unloaded otherwise they'll try to access invalid memory. Cc: Jiri Olsa Signed-off-by: Namhyung Kim --- tools/lib/traceevent/plugin_jbd2.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/lib/traceevent/plugin_jbd2.c b/tools/lib/traceevent/plugin_jbd2.c index 2f93f81f0bac..88fe6fe872d5 100644 --- a/tools/lib/traceevent/plugin_jbd2.c +++ b/tools/lib/traceevent/plugin_jbd2.c @@ -66,3 +66,14 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) PEVENT_FUNC_ARG_VOID); return 0; } + +void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) +{ + pevent_unregister_print_function(pevent, + process_jbd2_dev_to_name, + "jbd2_dev_to_name"); + + pevent_unregister_print_function(pevent, + process_jiffies_to_msecs, + "jiffies_to_msecs"); +} -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/