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

From: Roman Gushchin
Date: Wed May 22 2019 - 19:23:54 EST


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