Commit-ID: a056a5bed7fa67706574b00cf1122c38596b2be1 Gitweb: https://git.kernel.org/tip/a056a5bed7fa67706574b00cf1122c38596b2be1 Author: Qais Yousef <qais.yousef@xxxxxxx> AuthorDate: Tue, 4 Jun 2019 12:14:59 +0100 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Mon, 24 Jun 2019 19:23:43 +0200 sched/debug: Export the newly added tracepoints So that external modules can hook into them and extract the info they need. Since these new tracepoints have no events associated with them exporting these tracepoints make them useful for external modules to perform testing and debugging. There's no other way otherwise to access them. BPF doesn't have infrastructure to access these bare tracepoints either. Signed-off-by: Qais Yousef <qais.yousef@xxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: Dietmar Eggemann <dietmar.eggemann@xxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Pavankumar Kondeti <pkondeti@xxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Quentin Perret <quentin.perret@xxxxxxx> Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Uwe Kleine-Konig <u.kleine-koenig@xxxxxxxxxxxxxx> Link: https://lkml.kernel.org/r/20190604111459.2862-7-qais.yousef@xxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- kernel/sched/core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 83bd6bb32a34..e5e02d23e693 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -23,6 +23,17 @@ #define CREATE_TRACE_POINTS #include <trace/events/sched.h> +/* + * Export tracepoints that act as a bare tracehook (ie: have no trace event + * associated with them) to allow external modules to probe them. + */ +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_cfs_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_rt_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_dl_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_irq_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(pelt_se_tp); +EXPORT_TRACEPOINT_SYMBOL_GPL(sched_overutilized_tp); + DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_JUMP_LABEL)
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