bpf: Allow tracing programs to use bpf_jiffies64() helper
authorYonghong Song <yhs@fb.com>
Tue, 23 Jun 2020 23:08:08 +0000 (16:08 -0700)
committerAlexei Starovoitov <ast@kernel.org>
Thu, 25 Jun 2020 01:37:58 +0000 (18:37 -0700)
commit72e2b2b66f9c1225e51fc4a1c1e8512959195b76
treeb7eda4bf4f89a5f471d680487312001990e3cb71
parentc06b0229579806f5b5e14af64cf9c5dc771445b3
bpf: Allow tracing programs to use bpf_jiffies64() helper

/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
kernel/trace/bpf_trace.c