[PATCH v2 bpf-next 0/4] cgroup bpf auto-detachment

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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.

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        | 145 ++++++++++++++++--
 8 files changed, 243 insertions(+), 27 deletions(-)
 rename samples/bpf/test_cgrp2_attach2.c => tools/testing/selftests/bpf/test_cgroup_attach.c (79%)

-- 
2.20.1




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