selftests: cgroup: Test open-time cgroup namespace usage for migration checks

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When a task is writing to an fd opened by a different task, the perm check
should use the cgroup namespace of the latter task. Add a test for it.

Tested-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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Tejun Heo 2022-01-06 11:02:29 -10:00

parent 613e040e4d

commit bf35a7879f

1 changed files with 97 additions and 0 deletions

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tools/testing/selftests/cgroup/test_core.c

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