On Tue, Mar 29, 2022 at 11:19 AM Beau Belgrave <beaub@xxxxxxxxxxxxxxxxxxx> wrote: > > Send user_event data to attached eBPF programs for user_event based perf > events. > > Add BPF_ITER flag to allow user_event data to have a zero copy path into > eBPF programs if required. > > Update documentation to describe new flags and structures for eBPF > integration. > > Signed-off-by: Beau Belgrave <beaub@xxxxxxxxxxxxxxxxxxx> The commit describes _what_ it does, but says nothing about _why_. At present I see no use out of bpf and user_events connection. The whole user_events feature looks redundant to me. We have uprobes and usdt. It doesn't look to me that user_events provide anything new that wasn't available earlier.
