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| author | Michal Koutný <mkoutny@suse.com> | 2025-03-11 13:36:26 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-03-11 09:22:54 -1000 |
| commit | 78f6519ed0766e36f08954810ce05f19212242a6 (patch) | |
| tree | 7559944cc4873be0514aebc34ba596d75a1b54fa /Documentation/admin-guide | |
| parent | fd4fd0a869e969a97753986b107729d4bb56525b (diff) | |
| download | ath-78f6519ed0766e36f08954810ce05f19212242a6.tar.gz | |
cgroup: Add deprecation message to legacy freezer controller
As explained in the commit 76f969e8948d8 ("cgroup: cgroup v2 freezer"),
the original freezer is imperfect, some users may unwittingly rely on it
when there exists the alternative of v2. Print a message when it happens
and explain that in the docs.
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst b/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst index 582d3427de3f8..a964aff373b19 100644 --- a/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst +++ b/Documentation/admin-guide/cgroup-v1/freezer-subsystem.rst @@ -125,3 +125,7 @@ to unfreeze all tasks in the container:: This is the basic mechanism which should do the right thing for user space task in a simple scenario. + +This freezer implementation is affected by shortcomings (see commit +76f969e8948d8 ("cgroup: cgroup v2 freezer")) and cgroup v2 freezer is +recommended. |