cgroup: don't call cgroup1_pidlist_destroy_all() for v2
Currently cgroup1_pidlist_destroy_all() will be called when releasing cgroup even if the cgroup is on default hierarchy, however it doesn't make any sense for v2 to destroy pidlist of v1. Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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@ -5368,6 +5368,7 @@ static void css_free_rwork_fn(struct work_struct *work)
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} else {
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/* cgroup free path */
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atomic_dec(&cgrp->root->nr_cgrps);
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if (!cgroup_on_dfl(cgrp))
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cgroup1_pidlist_destroy_all(cgrp);
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cancel_work_sync(&cgrp->release_agent_work);
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bpf_cgrp_storage_free(cgrp);
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