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Message-ID: <20190523194532.2376233-1-guro@fb.com>
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
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