Messages in this thread | | | From | Namhyung Kim <> | Date | Thu, 25 Aug 2022 09:57:42 -0700 | Subject | Re: [PATCH bpf-next] bpf: Add bpf_read_raw_record() helper |
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On Tue, Aug 23, 2022 at 10:32 PM John Fastabend <john.fastabend@gmail.com> wrote: > Namhyung Kim wrote: > > Ok, now I think that I can use a bpf-output sw event. It would need > > another BPF program to write data to the event and the test program > > can read it from BPF using this helper. :) > > Ah good idea. Feel free to carry my ACK to the v2 with the test.
Hmm.. it seems not to work because 1. bpf_output sw event doesn't have the overflow mechanism and it doesn't call the bpf program. 2. even if I added it, it couldn't run due to the recursion protection by bpf_prog_active.
Thanks, Namhyung
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