On Tue, Apr 22, 2014 at 03:45:04PM +0100, Ingo Molnar wrote:
>
> * Drew Richardson <drew.richard...@arm.com> wrote:
>
> > After commit de7b2973903c6cc50b31ee5682a69b2219b9919d ("tracepoint:
> > Use struct pointer instead of name hash for reg/unreg tracepoints"),
> > any tracepoints used in a kernel module must be exported.
> >
> > Signed-off-by: Drew Richardson <drew.richard...@arm.com>
> > Acked-by: Pawel Moll <pawel.m...@arm.com>
> > ---
> > kernel/sched/core.c | 25 +++++++++++++++++++++++++
> > 1 file changed, 25 insertions(+)
> >
> > diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> > index 268a45ea238c..cdb8e92ff24a 100644
> > --- a/kernel/sched/core.c
> > +++ b/kernel/sched/core.c
> > @@ -90,6 +90,31 @@
> > #define CREATE_TRACE_POINTS
> > #include <trace/events/sched.h>
> >
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_kthread_stop);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_kthread_stop_ret);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_wakeup);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_wakeup_new);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_switch);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_migrate_task);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_process_free);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_process_exit);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_wait_task);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_process_wait);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_process_fork);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_process_exec);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_wait);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_sleep);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_iowait);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_blocked);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stat_runtime);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_pi_setprio);
> > +#ifdef CONFIG_DETECT_HUNG_TASK
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_process_hang);
> > +#endif /* CONFIG_DETECT_HUNG_TASK */
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_move_numa);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_stick_numa);
> > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_swap_numa);
>
> Which in-tree kernel module is using these?
>
> Thanks,
>
> Ingo
>
Gator (http://git.linaro.org/arm/ds5/gator.git), an out of tree kernel
module, uses sched_process_fork, sched_switch and
sched_process_free. Along with exporting those tracepoints I thought
it would be helpful to export all the tracepoints from
trace/events/sched.h.
Thanks,
Drew
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
