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From: Yonghong Song <yhs@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>, <kernel-team@fb.com>,
	Martin KaFai Lau <kafai@fb.com>
Subject: [PATCH bpf-next v3 04/15] bpf: allow tracing programs to use bpf_jiffies64() helper
Date: Mon, 22 Jun 2020 17:36:30 -0700	[thread overview]
Message-ID: <20200623003630.3073655-1-yhs@fb.com> (raw)
In-Reply-To: <20200623003626.3072825-1-yhs@fb.com>

/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.

Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Yonghong Song <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 dbee30e2ad91..afaec7e082d9 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -1135,6 +1135,8 @@ 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;
 	}
-- 
2.24.1


  parent reply	other threads:[~2020-06-23  0:36 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-23  0:36 [PATCH bpf-next v3 00/15] implement bpf iterator for tcp and udp sockets Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 01/15] net: bpf: add bpf_seq_afinfo in tcp_iter_state Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 02/15] net: bpf: implement bpf iterator for tcp Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 03/15] bpf: support 'X' in bpf_seq_printf() helper Yonghong Song
2020-06-23  0:36 ` Yonghong Song [this message]
2020-06-23  0:36 ` [PATCH bpf-next v3 05/15] bpf: add bpf_skc_to_tcp6_sock() helper Yonghong Song
2020-06-23  5:46   ` kernel test robot
2020-06-23  5:46     ` kernel test robot
2020-06-23  5:53   ` kernel test robot
2020-06-23  5:53     ` kernel test robot
2020-06-23  6:39   ` Andrii Nakryiko
2020-06-23 14:52     ` Yonghong Song
2020-06-23 18:23       ` Andrii Nakryiko
2020-06-23 19:45         ` Yonghong Song
2020-06-23 20:11           ` Andrii Nakryiko
2020-06-23 20:46             ` Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 06/15] bpf: add bpf_skc_to_{tcp,tcp_timewait,tcp_request}_sock() helpers Yonghong Song
2020-06-23  5:18   ` kernel test robot
2020-06-23  5:18     ` [PATCH bpf-next v3 06/15] bpf: add bpf_skc_to_{tcp, tcp_timewait, tcp_request}_sock() helpers kernel test robot
2020-06-23  6:39   ` [PATCH bpf-next v3 06/15] bpf: add bpf_skc_to_{tcp,tcp_timewait,tcp_request}_sock() helpers kernel test robot
2020-06-23  6:39     ` [PATCH bpf-next v3 06/15] bpf: add bpf_skc_to_{tcp, tcp_timewait, tcp_request}_sock() helpers kernel test robot
2020-06-23  0:36 ` [PATCH bpf-next v3 07/15] net: bpf: add bpf_seq_afinfo in udp_iter_state Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 08/15] net: bpf: implement bpf iterator for udp Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 09/15] bpf: add bpf_skc_to_udp6_sock() helper Yonghong Song
2020-06-23  1:47   ` Eric Dumazet
2020-06-23  2:22     ` Yonghong Song
2020-06-23 16:27       ` Eric Dumazet
2020-06-23 17:03         ` Yonghong Song
2020-06-23 22:11           ` Eric Dumazet
2020-06-23 22:44             ` Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 10/15] bpf/selftests: move newer bpf_iter_* type redefining to a new header file Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 11/15] tools/bpf: refactor some net macros to libbpf bpf_tracing_net.h Yonghong Song
2020-06-23  6:45   ` Andrii Nakryiko
2020-06-23 14:56     ` Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 12/15] tools/libbpf: add more common macros to bpf_tracing_net.h Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 13/15] tools/bpf: selftests: implement sample tcp/tcp6 bpf_iter programs Yonghong Song
2020-06-23  6:56   ` Andrii Nakryiko
2020-06-23 15:03     ` Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 14/15] tools/bpf: add udp4/udp6 bpf iterator Yonghong Song
2020-06-23  6:57   ` Andrii Nakryiko
2020-06-23 15:03     ` Yonghong Song
2020-06-23  0:36 ` [PATCH bpf-next v3 15/15] bpf/selftests: add tcp/udp iterator programs to selftests Yonghong Song
2020-06-23  6:59   ` Andrii Nakryiko

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