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From: Roman Gushchin <guro@fb.com>
To: Alexei Starovoitov <ast@kernel.org>, <bpf@vger.kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>, <netdev@vger.kernel.org>,
	Tejun Heo <tj@kernel.org>, <kernel-team@fb.com>,
	<cgroups@vger.kernel.org>, Stanislav Fomichev <sdf@fomichev.me>,
	Yonghong Song <yhs@fb.com>, <linux-kernel@vger.kernel.org>,
	Roman Gushchin <guro@fb.com>
Subject: [PATCH v5 bpf-next 0/4] cgroup bpf auto-detachment
Date: Sat, 25 May 2019 09:37:38 -0700	[thread overview]
Message-ID: <20190525163742.2616471-1-guro@fb.com> (raw)

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.

v5:
  1) rebase

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          |   3 +-
 tools/testing/selftests/bpf/cgroup_helpers.c  |  57 +++++++
 .../selftests/bpf/test_cgroup_attach.c        | 146 ++++++++++++++++--
 9 files changed, 261 insertions(+), 29 deletions(-)
 rename samples/bpf/test_cgrp2_attach2.c => tools/testing/selftests/bpf/test_cgroup_attach.c (79%)

-- 
2.21.0


             reply	other threads:[~2019-05-25 16:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-25 16:37 Roman Gushchin [this message]
2019-05-25 16:37 ` [PATCH v5 bpf-next 2/4] selftests/bpf: convert test_cgrp2_attach2 example into kselftest Roman Gushchin
2019-05-25 16:37 ` [PATCH v5 bpf-next 3/4] selftests/bpf: enable all available cgroup v2 controllers Roman Gushchin
2019-05-25 16:37 ` [PATCH v5 bpf-next 4/4] selftests/bpf: add auto-detach test Roman Gushchin
2019-05-28 16:34 ` [PATCH v5 bpf-next 0/4] cgroup bpf auto-detachment Alexei Starovoitov

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