[PATCH RESEND 2/3] docs: cgroup: Note about sibling relative reclaim protection

From: Michal Koutný

Date: Mon Nov 10 2025 - 14:37:37 EST


Signed-off-by: Michal Koutný <mkoutny@xxxxxxxx>
---
Documentation/admin-guide/cgroup-v2.rst | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index a6def773a3072..be3d805a929ef 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1952,6 +1952,10 @@ targets ancestors of A, the effective protection of B is capped by the
protection value configured for A (and any other intermediate ancestors between
A and the target).

+To express indifference about relative sibling protection, it is suggested to
+use memory_recursiveprot. Configuring all descendants of a parent with finite
+protection to "max" works but it may unnecessarily skew memory.events:low
+field.

Memory Ownership
~~~~~~~~~~~~~~~~
--
2.51.1