From patchwork Fri Nov 6 22:07:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin KaFai Lau X-Patchwork-Id: 322203 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=-6.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=no 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 15903C55179 for ; Fri, 6 Nov 2020 22:08:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A31052087E for ; Fri, 6 Nov 2020 22:08:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="JdDoRtqA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728697AbgKFWIG (ORCPT ); Fri, 6 Nov 2020 17:08:06 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:45296 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728594AbgKFWIF (ORCPT ); Fri, 6 Nov 2020 17:08:05 -0500 Received: from pps.filterd (m0148461.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0A6Lwom2014244 for ; Fri, 6 Nov 2020 14:08:04 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=Wgy1IYFmaJr062bGS4QL+FI9MGl4k8SGXjbDgz0DL9M=; b=JdDoRtqALH11QxH6NG+51dywUsW5NlA+FSyBV1KRrcgbtQwpEFgdjbOU0Ilmyx6jU8Ag qd+gJxJIsVImKorjbct/cB6R+8lubutCIPUB1L8wrvfnPdPgUGPTKDqJohIU7RGjiRP+ qkyZ1QgpL/TYKRFzGofqaf/MXrkfy5HfjjE= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 34mr9ben9m-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 06 Nov 2020 14:08:04 -0800 Received: from intmgw002.08.frc2.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:82::d) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Fri, 6 Nov 2020 14:08:02 -0800 Received: by devbig005.ftw2.facebook.com (Postfix, from userid 6611) id 04CF529463F7; Fri, 6 Nov 2020 14:07:50 -0800 (PST) From: Martin KaFai Lau To: CC: Alexei Starovoitov , Daniel Borkmann , , Subject: [PATCH bpf-next 0/3] bpf: Enable bpf_sk_storage for FENTRY/FEXIT/RAW_TP Date: Fri, 6 Nov 2020 14:07:50 -0800 Message-ID: <20201106220750.3949423-1-kafai@fb.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312, 18.0.737 definitions=2020-11-06_06:2020-11-05,2020-11-06 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 malwarescore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=395 suspectscore=13 mlxscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011060151 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This set is to allow the FENTRY/FEXIT/RAW_TP tracing program to use bpf_sk_storage. The first patch is a cleanup. The last patch is tests. The second patch has the required kernel changes to enable bpf_sk_storage for FENTRY/FEXIT/RAW_TP. Please see individual patch for details. Martin KaFai Lau (3): bpf: Folding omem_charge() into sk_storage_charge() bpf: Allow using bpf_sk_storage in FENTRY/FEXIT/RAW_TP bpf: selftest: Use bpf_sk_storage in FENTRY/FEXIT/RAW_TP include/net/bpf_sk_storage.h | 2 + kernel/trace/bpf_trace.c | 5 + net/core/bpf_sk_storage.c | 96 +++++++++++-- .../bpf/prog_tests/sk_storage_tracing.c | 135 ++++++++++++++++++ .../bpf/progs/test_sk_storage_trace_itself.c | 29 ++++ .../bpf/progs/test_sk_storage_tracing.c | 95 ++++++++++++ 6 files changed, 349 insertions(+), 13 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/sk_storage_tracing.c create mode 100644 tools/testing/selftests/bpf/progs/test_sk_storage_trace_itself.c create mode 100644 tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c