The patch titled
Subject: mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure-v5
has been added to the -mm mm-unstable branch. Its filename is
mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure-v5.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure-v5.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Subject: mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure-v5
Date: Thu, 21 Jul 2022 17:30:15 +0000
update documentation
Link: https://lkml.kernel.org/r/20220721173015.2643248-1-yosryahmed@xxxxxxxxxx
Signed-off-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Cc: NeilBrown <neilb@xxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/cgroup-v2.rst | 7 +++++++
1 file changed, 7 insertions(+)
--- a/Documentation/admin-guide/cgroup-v2.rst~mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure-v5
+++ a/Documentation/admin-guide/cgroup-v2.rst
@@ -1229,6 +1229,13 @@ PAGE_SIZE multiple when read back.
the target cgroup. If less bytes are reclaimed than the
specified amount, -EAGAIN is returned.
+ Please note that the proactive reclaim (triggered by this
+ interface) is not meant to indicate memory pressure on the
+ memory cgroup. Therefore socket memory balancing triggered by
+ the memory reclaim normally is not exercised in this case.
+ This means that the networking layer will not adapt based on
+ reclaim induced by memory.reclaim.
+
memory.peak
A read-only single value file which exists on non-root
cgroups.
_
Patches currently in -mm which might be from yosryahmed@xxxxxxxxxx are
mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure.patch
mm-vmpressure-dont-count-proactive-reclaim-in-vmpressure-v5.patch
