On Fri, 19 Sep 2025 16:09:50 +0200 Gabriele Monaco <[email protected]> wrote:
> The tracepoints sched_entry, sched_exit and sched_set_need_resched > are not exported to tracefs as trace events, this allows only kernel > code to access them. Helper modules like [1] can be used to still have > the tracepoints available to ftrace for debugging purposes, but they do > rely on the tracepoints being exported. > > Export the 3 not exported tracepoints. > Note that sched_set_state is already exported as the macro is called > from modules. > > [1] - https://github.com/qais-yousef/sched_tp.git > > Signed-off-by: Gabriele Monaco <[email protected]> Note, for all the scheduler changes, we need an acked-by from the scheduler maintainers. After you have acks and are satisfied with the code (hopefully someone else can review them), you can send me a pull request to be added into linux-next. I'll still run them through my own tests. Which BTW, there should be a bunch of tests in: tools/testing/selftests/verification/ (which doesn't yet exist). -- Steve > --- > kernel/sched/core.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index ccba6fc3c3fe..334ff5b214d7 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -117,6 +117,9 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_cfs_tp); > EXPORT_TRACEPOINT_SYMBOL_GPL(sched_util_est_se_tp); > EXPORT_TRACEPOINT_SYMBOL_GPL(sched_update_nr_running_tp); > EXPORT_TRACEPOINT_SYMBOL_GPL(sched_compute_energy_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_entry_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_exit_tp); > +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_set_need_resched_tp); > > DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); >
