bpf: Allow tracing programs to use bpf_jiffies64() helper

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/proc/net/tcp{4,6} uses jiffies for various computations.
Let us add bpf_jiffies64() helper to tracing program
so bpf_iter and other programs can use it.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200623230808.3988073-1-yhs@fb.com

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Yonghong Song 2020-06-23 16:08:08 -07:00 • committed by Alexei Starovoitov

parent c06b022957

commit 72e2b2b66f

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kernel/trace/bpf_trace.c

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