From: "Michal Koutný" <mkoutny@suse.com>
To: cgroups@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: "Natalie Vock" <natalie.vock@gmx.de>,
"Maarten Lankhorst" <dev@lankhorst.se>,
"Michal Koutný" <mkoutny@suse.com>, "Tejun Heo" <tj@kernel.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Jonathan Corbet" <corbet@lwn.net>
Subject: [PATCH RESEND 3/3] docs: cgroup: No special handling of unpopulated memcgs
Date: Mon, 10 Nov 2025 20:36:35 +0100 [thread overview]
Message-ID: <20251110193638.623208-4-mkoutny@suse.com> (raw)
In-Reply-To: <20251110193638.623208-1-mkoutny@suse.com>
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@suse.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 be3d805a929ef..84985bb20c452 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
prev parent reply other threads:[~2025-11-10 19:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-10 19:36 [PATCH RESEND 0/3] Memory reclaim documentation fixes Michal Koutný
2025-11-10 19:36 ` [PATCH RESEND 1/3] docs: cgroup: Explain reclaim protection target Michal Koutný
2025-11-10 20:00 ` Jonathan Corbet
2025-11-14 18:29 ` Michal Koutný
2025-11-14 21:11 ` Tejun Heo
2025-11-10 19:36 ` [PATCH RESEND 2/3] docs: cgroup: Note about sibling relative reclaim protection Michal Koutný
2025-11-10 19:36 ` Michal Koutný [this message]
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