Hi, These patches improve the design of preemptirq tracepoints, clean up several of the ifdeffery and overall makes the feature configuration cleaner and less confusing. It also uses the tracepoints infra for the lockdep hooks for irqs on/off thus making a central point for all users of the event (kernel/trace/trace_preemptirq.c). Patches based on v4.16-rc5.
Changes since RFC [1]: - handle case where lockdep warnings occur in tracepoint code (2/2) - protect tracepoint probe registration in lockdep init by ifdef. Joel Fernandes (2): tracing: Improve design of preemptirq tracepoints and its users tracepoint: Prevent false-positive lockdep warnings include/linux/ftrace.h | 11 +- include/linux/irqflags.h | 11 +- include/linux/lockdep.h | 6 +- include/linux/preempt.h | 2 +- include/linux/tracepoint.h | 23 +++- include/trace/events/preemptirq.h | 23 ++-- init/main.c | 2 +- kernel/locking/lockdep.c | 31 ++--- kernel/sched/core.c | 2 +- kernel/trace/Kconfig | 19 ++- kernel/trace/Makefile | 2 +- kernel/trace/trace_irqsoff.c | 206 +++++++----------------------- kernel/trace/trace_preemptirq.c | 70 ++++++++++ 13 files changed, 191 insertions(+), 217 deletions(-) create mode 100644 kernel/trace/trace_preemptirq.c [1] https://patchwork.kernel.org/patch/10202163/ Cc: Steven Rostedt <rost...@goodmis.org> Cc: Peter Zilstra <pet...@infradead.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Mathieu Desnoyers <mathieu.desnoy...@efficios.com> Cc: Tom Zanussi <tom.zanu...@linux.intel.com> Cc: Namhyung Kim <namhy...@kernel.org> Signed-off-by: Joel Fernandes <joe...@google.com> -- 2.16.2.660.g709887971b-goog
