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tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded

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The function handlers should be unregistered when the plugin 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]>
This commit is contained in:
Namhyung Kim 2014-01-16 11:31:16 +09:00 • committed by Arnaldo Carvalho de Melo
commit 0247a967d4
1 changed files with 9 additions and 0 deletions
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9
tools/lib/traceevent/plugin_jbd2.c
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@ -66,3 +66,12 @@ 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");
}