libbpf: Clarify flags in ringbuf helpers

In 'bpf_ringbuf_reserve()' we require the flag to '0' at the moment.

For 'bpf_ringbuf_{discard,submit,output}' a flag of '0' might send a
notification to the process if needed.

Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210412192434.944343-1-pctammela@mojatatu.com
This commit is contained in:
Pedro Tammela 2021-04-12 16:24:32 -03:00 • committed by Andrii Nakryiko
commit 5c50732900
2 changed files with 32 additions and 0 deletions