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authorTejun Heo <tj@kernel.org>2013-06-03 19:13:55 -0700
committerTejun Heo <tj@kernel.org>2013-06-05 12:00:33 -0700
commitcc5943a7816ba6c00639837a62131386619548dc (patch)
tree53027a91d8fa13ef177292cdc32e2b87d56d8284 /kernel/cgroup.c
parentf12dc020149fad7087e119e54cffea668272bf7d (diff)
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The empty cgroup notification mechanism currently implemented in cgroup is tragically outdated.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>
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 1e0f445b5b88..b3bb8a393642 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4052,6 +4052,7 @@ static struct cftype files[] = {
},
{
.name = "notify_on_release",
+ .flags = CFTYPE_INSANE,
.read_u64 = cgroup_read_notify_on_release,
.write_u64 = cgroup_write_notify_on_release,
},
@@ -4073,7 +4074,7 @@ static struct cftype files[] = {
},
{
.name = "release_agent",
- .flags = CFTYPE_ONLY_ON_ROOT,
+ .flags = CFTYPE_INSANE | CFTYPE_ONLY_ON_ROOT,
.read_seq_string = cgroup_release_agent_show,
.write_string = cgroup_release_agent_write,
.max_write_len = PATH_MAX,