diff --git a/src/bpf_helper_defs.h b/src/bpf_helper_defs.h index 972492f..e417e32 100644 --- a/src/bpf_helper_defs.h +++ b/src/bpf_helper_defs.h @@ -3211,7 +3211,9 @@ static void (* const bpf_ringbuf_submit)(void *data, __u64 flags) = (void *) 132 * * Discard reserved ring buffer sample, pointed to by *data*. * If **BPF_RB_NO_WAKEUP** is specified in *flags*, no notification - * of new data availability is sent. + * of new data availability is sent. Discarded records remain in + * the ring buffer until consumed by user space, so a later submit + * using adaptive wakeup might not wake up the consumer. * If **BPF_RB_FORCE_WAKEUP** is specified in *flags*, notification * of new data availability is sent unconditionally. * If **0** is specified in *flags*, an adaptive notification