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由 Tejun Heo 提交于
To trigger release agent when the last task leaves the cgroup, check_for_release() is called from put_css_set_locked(); however, css_set being unlinked is being decoupled from task leaving the cgroup and the correct condition to test is cgroup->nr_populated dropping to zero which check_for_release() is already updated to test. This patch moves check_for_release() invocation from put_css_set_locked() to cgroup_update_populated(). Signed-off-by: NTejun Heo <tj@kernel.org>
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