From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54EA1C433E1 for ; Tue, 23 Jun 2020 16:18:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3432D2076E for ; Tue, 23 Jun 2020 16:18:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="llsNchWb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732725AbgFWQSj (ORCPT ); Tue, 23 Jun 2020 12:18:39 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:13440 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732482AbgFWQSC (ORCPT ); Tue, 23 Jun 2020 12:18:02 -0400 Received: from pps.filterd (m0044012.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05NG6v66029976 for ; Tue, 23 Jun 2020 09:18:01 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=z7spgnSOmuscC2mGy1XIVWhqozMpxXywcMyrApiOdZk=; b=llsNchWbZAeQKJDBxn7vV2LjRco3DojOV+R03pgTtsIPXLfkLHKvnALUh1zgJZn/qCTP yJDkWeBLJ20Bb/+nGT3KEiZ6r5n69Yn+IO9elg8A0OF3rqHAnjc+lg2wI5XCuSsGC4R/ 7T9HWTAp+STNld6YiUPVSX8sxLWoVRW+8yk= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 31uk3cgppf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Tue, 23 Jun 2020 09:18:01 -0700 Received: from intmgw003.08.frc2.facebook.com (2620:10d:c085:208::11) by mail.thefacebook.com (2620:10d:c085:21d::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Tue, 23 Jun 2020 09:18:00 -0700 Received: by devbig003.ftw2.facebook.com (Postfix, from userid 128203) id EC3B1370330A; Tue, 23 Jun 2020 09:17:54 -0700 (PDT) Smtp-Origin-Hostprefix: devbig From: Yonghong Song Smtp-Origin-Hostname: devbig003.ftw2.facebook.com To: , CC: Alexei Starovoitov , Daniel Borkmann , , Martin KaFai Lau Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH bpf-next v4 04/15] bpf: allow tracing programs to use bpf_jiffies64() helper Date: Tue, 23 Jun 2020 09:17:54 -0700 Message-ID: <20200623161754.2500657-1-yhs@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200623161749.2500196-1-yhs@fb.com> References: <20200623161749.2500196-1-yhs@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-06-23_10:2020-06-23,2020-06-23 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 clxscore=1015 impostorscore=0 suspectscore=8 phishscore=0 mlxlogscore=699 priorityscore=1501 mlxscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006120000 definitions=main-2006230120 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org /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 Signed-off-by: Yonghong Song --- 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, co= nst 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; } --=20 2.24.1