linux-kernel - [PATCH v3 bpf-next 0/4] cgroup bpf auto-detachment

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 23 May 2019 12:45:28 -0700
From:   Roman Gushchin <guro@...com>
To:     Alexei Starovoitov <ast@...nel.org>, <bpf@...r.kernel.org>
CC:     Daniel Borkmann <daniel@...earbox.net>, <netdev@...r.kernel.org>,
        Tejun Heo <tj@...nel.org>, <kernel-team@...com>,
        <cgroups@...r.kernel.org>, Stanislav Fomichev <sdf@...ichev.me>,
        Yonghong Song <yhs@...com>, <linux-kernel@...r.kernel.org>,
        Roman Gushchin <guro@...com>
Subject: [PATCH v3 bpf-next 0/4] cgroup bpf auto-detachment

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.

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                    |   8 +-
 include/linux/cgroup.h                        |  18 +++
 kernel/bpf/cgroup.c                           |  25 ++-
 kernel/cgroup/cgroup.c                        |  11 +-
 samples/bpf/Makefile                          |   2 -
 tools/testing/selftests/bpf/Makefile          |   4 +-
 tools/testing/selftests/bpf/cgroup_helpers.c  |  57 +++++++
 .../selftests/bpf/test_cgroup_attach.c        | 146 ++++++++++++++++--
 8 files changed, 243 insertions(+), 28 deletions(-)
 rename samples/bpf/test_cgrp2_attach2.c => tools/testing/selftests/bpf/test_cgroup_attach.c (79%)

-- 
2.20.1