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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,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 7BFF3C282E1 for ; Fri, 24 May 2019 23:52:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D5D721848 for ; Fri, 24 May 2019 23:52:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="mv80gHPI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726380AbfEXXwO (ORCPT ); Fri, 24 May 2019 19:52:14 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:37430 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725816AbfEXXwO (ORCPT ); Fri, 24 May 2019 19:52:14 -0400 Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4ONjUgQ017438 for ; Fri, 24 May 2019 16:52:13 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=facebook; bh=XDz+gmj/EBFqZGWRU3jYaIrBb6wF338CvPmYvlgJN2I=; b=mv80gHPIWaroUzxkE2SCC1qEQelrZ/H4Chtait3Z/WfTyBoiNBkUGpFAmbr54Bfjk22P FLHd4zHolOU9WCSs6wBkPlks1gxF17SNszVMCxVC1pIDDWE/GY4W/4v3kAPxhTgEdOlY wP2Og9eLcbW3Ah18O3A+G3tZ20mJDUquOJU= Received: from mail.thefacebook.com (mailout.thefacebook.com [199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2spgw723ex-5 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Fri, 24 May 2019 16:52:13 -0700 Received: from mx-out.facebook.com (2620:10d:c081:10::13) by mail.thefacebook.com (2620:10d:c081:35::129) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA) id 15.1.1713.5; Fri, 24 May 2019 16:52:11 -0700 Received: by devvm2643.prn2.facebook.com (Postfix, from userid 111017) id 3A7771267AEB3; Fri, 24 May 2019 16:51:57 -0700 (PDT) Smtp-Origin-Hostprefix: devvm From: Roman Gushchin Smtp-Origin-Hostname: devvm2643.prn2.facebook.com To: Alexei Starovoitov , CC: Daniel Borkmann , , Tejun Heo , , , Stanislav Fomichev , Yonghong Song , , Roman Gushchin Smtp-Origin-Cluster: prn2c23 Subject: [PATCH v4 bpf-next 0/4] cgroup bpf auto-detachment Date: Fri, 24 May 2019 16:51:52 -0700 Message-ID: <20190524235156.4076591-1-guro@fb.com> X-Mailer: git-send-email 2.17.1 X-FB-Internal: Safe MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-24_09:,, signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=745 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905240162 X-FB-Internal: deliver Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset implements a cgroup bpf auto-detachment functionality: bpf programs are detached as soon as possible after removal of the cgroup, without waiting for the release of all associated resources. Patches 2 and 3 are required to implement a corresponding kselftest in patch 4. v4: 1) release cgroup bpf data using a workqueue 2) add test_cgroup_attach to .gitignore v3: 1) some minor changes and typo fixes v2: 1) removed a bogus check in patch 4 2) moved buf[len] = 0 in patch 2 Roman Gushchin (4): bpf: decouple the lifetime of cgroup_bpf from cgroup itself selftests/bpf: convert test_cgrp2_attach2 example into kselftest selftests/bpf: enable all available cgroup v2 controllers selftests/bpf: add auto-detach test include/linux/bpf-cgroup.h | 11 +- include/linux/cgroup.h | 18 +++ kernel/bpf/cgroup.c | 41 ++++- kernel/cgroup/cgroup.c | 11 +- samples/bpf/Makefile | 2 - tools/testing/selftests/bpf/.gitignore | 1 + tools/testing/selftests/bpf/Makefile | 4 +- tools/testing/selftests/bpf/cgroup_helpers.c | 57 +++++++ .../selftests/bpf/test_cgroup_attach.c | 146 ++++++++++++++++-- 9 files changed, 262 insertions(+), 29 deletions(-) rename samples/bpf/test_cgrp2_attach2.c => tools/testing/selftests/bpf/test_cgroup_attach.c (79%) -- 2.21.0