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Subject[PATCH] Markers : probe example fix teardown
Need a marker_synchronize_unregister() before the end of exit() to make sure
every probe callers have exited the non preemptible section and thus are not
executing the probe code anymore.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Ingo Molnar <mingo@elte.hu>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: akpm@linux-foundation.org
CC: "Frank Ch. Eigler" <fche@redhat.com>
---
samples/markers/probe-example.c | 1 +
1 file changed, 1 insertion(+)

Index: linux-2.6-lttng/samples/markers/probe-example.c
===================================================================
--- linux-2.6-lttng.orig/samples/markers/probe-example.c 2008-07-31 09:11:13.000000000 -0400
+++ linux-2.6-lttng/samples/markers/probe-example.c 2008-07-31 09:18:54.000000000 -0400
@@ -81,6 +81,7 @@ static void __exit probe_fini(void)
probe_array[i].probe_func, &probe_array[i]);
printk(KERN_INFO "Number of event b : %u\n",
atomic_read(&eventb_count));
+ marker_synchronize_unregister();
}

module_init(probe_init);
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68

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