From f90efeb3bcc10f74ea614fed2bf5a7ae24164f2d Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Tue, 23 Jun 2020 16:08:08 -0700 Subject: [PATCH] UPSTREAM: 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. Change-Id: I18cb1e7ecea12b3ffdc597fe6b97a5d2c8137e1e Signed-off-by: Yonghong Song Signed-off-by: Alexei Starovoitov Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/20200623230808.3988073-1-yhs@fb.com --- kernel/trace/bpf_trace.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index fbfe20e9fd02..4c4043cfe1dd 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -1071,6 +1071,8 @@ bpf_tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_ringbuf_discard_proto; case BPF_FUNC_ringbuf_query: return &bpf_ringbuf_query_proto; + case BPF_FUNC_jiffies64: + return &bpf_jiffies64_proto; default: return NULL; }