cgroup: mark "notify_on_release" and "release_agent" cgroup files insane
The empty cgroup notification mechanism currently implemented in cgroup is tragically outdated. Forking and execing userland process stopped being a viable notification mechanism more than a decade ago. We're gonna have a saner mechanism. Let's make it clear that this abomination is going away. Mark "notify_on_release" and "release_agent" with CFTYPE_INSANE. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>
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f12dc02014
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cc5943a781
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@ -4052,6 +4052,7 @@ static struct cftype files[] = {
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},
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{
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.name = "notify_on_release",
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.flags = CFTYPE_INSANE,
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.read_u64 = cgroup_read_notify_on_release,
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.write_u64 = cgroup_write_notify_on_release,
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},
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@ -4073,7 +4074,7 @@ static struct cftype files[] = {
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},
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{
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.name = "release_agent",
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.flags = CFTYPE_ONLY_ON_ROOT,
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.flags = CFTYPE_INSANE | CFTYPE_ONLY_ON_ROOT,
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.read_seq_string = cgroup_release_agent_show,
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.write_string = cgroup_release_agent_write,
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.max_write_len = PATH_MAX,
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