linux-kernel - [PATCH v2 3/3] docs: cgroup: No special handling of unpopulated memcgs

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Message-ID: <20251114182130.1549832-4-mkoutny@suse.com>
Date: Fri, 14 Nov 2025 19:21:27 +0100
From: Michal Koutný <mkoutny@...e.com>
To: cgroups@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Natalie Vock <natalie.vock@....de>,
	Maarten Lankhorst <dev@...khorst.se>,
	Michal Koutný <mkoutny@...e.com>,
	Tejun Heo <tj@...nel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Jonathan Corbet <corbet@....net>
Subject: [PATCH v2 3/3] docs: cgroup: No special handling of unpopulated memcgs

The current kernel doesn't handle unpopulated cgroups any special
regarding reclaim protection. Furthermore, this wasn't a case even when
this was introduced in
    bf8d5d52ffe89 ("memcg: introduce memory.min")
Drop the incorrect documentation. (Implementation taking into account
the inner-node constraint may be added later.)

Signed-off-by: Michal Koutný <mkoutny@...e.com>
---
 Documentation/admin-guide/cgroup-v2.rst | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index e0a659474fa47..4c072e85acdfe 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -1327,9 +1327,6 @@ PAGE_SIZE multiple when read back.
 	Putting more memory than generally available under this
 	protection is discouraged and may lead to constant OOMs.
 
-	If a memory cgroup is not populated with processes,
-	its memory.min is ignored.
-
   memory.low
 	A read-write single value file which exists on non-root
 	cgroups.  The default is "0".
-- 
2.51.1