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

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Message-ID: <20190522212932.2646247-1-guro@fb.com>
Date:   Wed, 22 May 2019 14:29:28 -0700
From:   Roman Gushchin <guro@...com>
To:     <bpf@...r.kernel.org>
CC:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        <netdev@...r.kernel.org>, Tejun Heo <tj@...nel.org>,
        <kernel-team@...com>, <cgroups@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Roman Gushchin <guro@...com>
Subject: [PATCH bpf-next 0/4] cgroup bpf auto-detachment

This patchset implements a cgroup bpf auto-detachment functionality:
bpf programs are attached 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.

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  |  58 +++++++
 .../selftests/bpf/test_cgroup_attach.c        | 154 ++++++++++++++++--
 8 files changed, 253 insertions(+), 27 deletions(-)
 rename samples/bpf/test_cgrp2_attach2.c => tools/testing/selftests/bpf/test_cgroup_attach.c (78%)

-- 
2.20.1