On Sun, Dec 10, 2023 at 8:55 PM Kyle Huey <me@xxxxxxxxxxxx> wrote: > > To ultimately allow bpf programs attached to perf events to completely > suppress all of the effects of a perf event overflow (rather than just the > sample output, as they do today), call bpf_overflow_handler() from > __perf_event_overflow() directly rather than modifying struct perf_event's > overflow_handler. Return the bpf program's return value from > bpf_overflow_handler() so that __perf_event_overflow() knows how to > proceed. Remove the now unnecessary orig_overflow_handler from struct > perf_event. > > This patch is solely a refactoring and results in no behavior change. > > Signed-off-by: Kyle Huey <khuey@xxxxxxxxxxxx> > Suggested-by: Namhyung Kim <namhyung@xxxxxxxxxx> Acked-by: Song Liu <song@xxxxxxxxxx>
