From: Eric Chanudet <echanude@redhat.com>
To: "Johannes Weiner" <hannes@cmpxchg.org>,
"Michal Hocko" <mhocko@kernel.org>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
"Shakeel Butt" <shakeel.butt@linux.dev>,
"Muchun Song" <muchun.song@linux.dev>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Maarten Lankhorst" <dev@lankhorst.se>,
"Maxime Ripard" <mripard@kernel.org>,
"Natalie Vock" <natalie.vock@gmx.de>, "Tejun Heo" <tj@kernel.org>,
"Michal Koutný" <mkoutny@suse.com>
Cc: cgroups@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
"T.J. Mercier" <tjmercier@google.com>,
"Christian König" <christian.koenig@amd.com>,
"Maxime Ripard" <mripard@redhat.com>,
"Albert Esteve" <aesteve@redhat.com>,
"Dave Airlie" <airlied@gmail.com>,
"Eric Chanudet" <echanude@redhat.com>
Subject: [PATCH RFC 0/2] cgroup/mem: add a node to double charge in memcg
Date: Fri, 03 Apr 2026 10:08:34 -0400 [thread overview]
Message-ID: <20260403-cgroup-dmem-memcg-double-charge-v1-0-c371d155de2a@redhat.com> (raw)
It was suggested previously[1] to introduce a knob for dmem region to
double charge dmem and memcg at the will of the administrator.
This RFC tries do that in the dmem controller through the cgroupfs
interface already available and walk through the problems that creates.
[1] https://lore.kernel.org/all/a446b598-5041-450b-aaa9-3c39a09ff6a0@amd.com/
Signed-off-by: Eric Chanudet <echanude@redhat.com>
---
Eric Chanudet (2):
mm/memcontrol: add page-level charge/uncharge functions
cgroup/dmem: add a node to double charge in memcg
include/linux/memcontrol.h | 4 +++
kernel/cgroup/dmem.c | 86 ++++++++++++++++++++++++++++++++++++++++++++--
mm/memcontrol.c | 24 +++++++++++++
3 files changed, 111 insertions(+), 3 deletions(-)
---
base-commit: 4b9c36c83b34f710da9573291404f6a2246251c1
change-id: 20260327-cgroup-dmem-memcg-double-charge-0f100a9ffbf2
Best regards,
--
Eric Chanudet <echanude@redhat.com>
next reply other threads:[~2026-04-03 14:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-03 14:08 Eric Chanudet [this message]
2026-04-03 14:08 ` [PATCH RFC 1/2] mm/memcontrol: add page-level charge/uncharge functions Eric Chanudet
2026-04-03 17:15 ` Johannes Weiner
2026-04-07 14:31 ` Eric Chanudet
2026-04-03 14:08 ` [PATCH RFC 2/2] cgroup/dmem: add a node to double charge in memcg Eric Chanudet
2026-04-07 12:48 ` Michal Koutný
2026-04-07 23:35 ` Eric Chanudet
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