Messages in this thread Patch in this message |  | | | Date | Wed, 01 Oct 2008 12:03:27 -0400 | | From | Mathieu Desnoyers <> | | Subject | [patch 3/5] Markers : probe example fix teardown |
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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 Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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