[PATCH 0/3] cgroup: Iterate tasks that did not finish do_exit()

Michal Koutný
2020-01-17T15:15:30Z

Hi,
I was looking into the issue and came up with an alternative solution that
changes task iteration to be consistent with cgroup_is_populated() check and
moving the responsibility to check PF_EXITING on the consumers of iterator API.

I haven't check your approach thoroughly, however, it appears to me it
complicates (already non-trivial) cgroup destruction path. I ran your selftest
on the iterators approach and it proved working.

Michal Koutn√Ω (2):
cgroup: Unify css_set task lists
cgroup: Iterate tasks that did not finish do_exit()

Suren Baghdasaryan (1):
kselftest/cgroup: add cgroup destruction test

include/linux/cgroup-defs.h | 15 ++-
include/linux/cgroup.h | 4 +-
kernel/cgroup/cgroup.c | 86 ++++++++--------
kernel/cgroup/debug.c | 16 ++-
tools/testing/selftests/cgroup/test_core.c | 113 +++++++++++++++++++++
5 files changed, 176 insertions(+), 58 deletions(-)

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2.24.1