Commit-ID: 11e99c55414ebade1031a0ed3b49915824c7c3ea Gitweb: http://git.kernel.org/tip/11e99c55414ebade1031a0ed3b49915824c7c3ea Author: Namhyung Kim <[email protected]> AuthorDate: Thu, 16 Jan 2014 11:31:11 +0900 Committer: Arnaldo Carvalho de Melo <[email protected]> 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 <[email protected]> Reviewed-by: Jiri Olsa <[email protected]> Acked-by: Steven Rostedt <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
