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Date: Sun, 19 Jan 2014 04:23:11 -0800 From: tip-bot for Namhyung Kim <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl, namhyung.kim@....com, namhyung@...nel.org, jolsa@...hat.com, fweisbec@...il.com, rostedt@...dmis.org, tglx@...utronix.de Subject: [tip:perf/core] tools lib traceevent: Unregister handler when kmem plugin is unloaded Commit-ID: 11e99c55414ebade1031a0ed3b49915824c7c3ea Gitweb: http://git.kernel.org/tip/11e99c55414ebade1031a0ed3b49915824c7c3ea Author: Namhyung Kim <namhyung@...nel.org> AuthorDate: Thu, 16 Jan 2014 11:31:11 +0900 Committer: Arnaldo Carvalho de Melo <acme@...hat.com> CommitDate: Thu, 16 Jan 2014 16:26:24 -0300 tools lib traceevent: Unregister handler when kmem plugin is unloaded The kmem handlers should be unregistered when the plugin is unloaded otherwise they'll try to access invalid memory. Signed-off-by: Namhyung Kim <namhyung@...nel.org> Reviewed-by: Jiri Olsa <jolsa@...hat.com> Acked-by: Steven Rostedt <rostedt@...dmis.org> Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Ingo Molnar <mingo@...nel.org> Cc: Jiri Olsa <jolsa@...hat.com> Cc: Namhyung Kim <namhyung.kim@....com> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Steven Rostedt <rostedt@...dmis.org> Link: http://lkml.kernel.org/r/1389839478-5887-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com> --- 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 7115c80..70650ff 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); +} -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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