Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752361AbaAOBsN (ORCPT ); Tue, 14 Jan 2014 20:48:13 -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 S1752003AbaAOBpr (ORCPT ); Tue, 14 Jan 2014 20:45:47 -0500 X-AuditID: 9c930197-b7b7cae000000e34-63-52d5e847e968 From: Namhyung Kim To: Steven Rostedt , Arnaldo Carvalho de Melo Cc: Frederic Weisbecker , Peter Zijlstra , Ingo Molnar , Namhyung Kim , LKML , Jiri Olsa Subject: [PATCH 10/17] tools lib traceevent: Unregister handler when kmem plugin unloaded Date: Wed, 15 Jan 2014 10:45:33 +0900 Message-Id: <1389750340-15965-11-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 kmem 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_kmem.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/lib/traceevent/plugin_kmem.c b/tools/lib/traceevent/plugin_kmem.c index 7115c8037ea8..70650ff48d78 100644 --- a/tools/lib/traceevent/plugin_kmem.c +++ b/tools/lib/traceevent/plugin_kmem.c @@ -70,3 +70,25 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) call_site_handler, NULL); return 0; } + +void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) +{ + pevent_unregister_event_handler(pevent, -1, "kmem", "kfree", + call_site_handler, NULL); + + pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc", + call_site_handler, NULL); + + pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node", + call_site_handler, NULL); + + pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc", + call_site_handler, NULL); + + pevent_unregister_event_handler(pevent, -1, "kmem", + "kmem_cache_alloc_node", + call_site_handler, NULL); + + pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free", + call_site_handler, NULL); +} -- 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/