From: Tal Zussman <tz2294@columbia.edu>
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>,
Chris Li <chrisl@kernel.org>, Kairui Song <kasong@tencent.com>,
Kemeng Shi <shikemeng@huaweicloud.com>,
Nhat Pham <nphamcs@gmail.com>, Baoquan He <baoquan.he@linux.dev>,
Barry Song <baohua@kernel.org>,
Youngjun Park <youngjun.park@lge.com>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Qi Zheng <qi.zheng@linux.dev>,
Axel Rasmussen <axelrasmussen@google.com>,
Yuanchu Xie <yuanchu@google.com>, Wei Xu <weixugc@google.com>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: cgroups@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Tal Zussman <tz2294@columbia.edu>
Subject: [PATCH 00/11] mm: memcontrol: constify the read side of the memcg API
Date: Wed, 02 Sep 2026 15:27:46 -0400 [thread overview]
Message-ID: <20260902-folio_memcg-const-v1-0-e2c1da22246d@columbia.edu> (raw)
The memcg accessors, lruvec helpers, and stat readers only read from
the memcg, folio, or lruvec they are given, but take non-const
pointers. Constify them, along with a couple other helper functions in
mm/page_counter.c along the way.
This started as a follow-up to [1] that quickly grew in proportions :)
[1]: https://lore.kernel.org/linux-mm/anYqSDnC2BbJXv1h@casper.infradead.org/
---
Tal Zussman (11):
mm: memcontrol: take a const folio in folio_memcg() and friends
mm: memcontrol: constify obj_cgroup_memcg() and friends
mm: memcontrol: constify the lruvec helpers
mm/page_io: take a const folio in bio_associate_blkg_from_folio()
mm: memcontrol: constify the mem_cgroup accessors
mm: page_counter: constify page_counter_read() and page_counter_margin()
mm: memcontrol: constify the reclaim protection helpers
mm: memcontrol: constify the memcg and lruvec stat readers
mm: memcontrol: constify the swap accounting helpers
mm: memcontrol: constify mem_cgroup_swappiness() and mem_cgroup_get_max()
mm: memcontrol: constify the zswap and socket pressure helpers
include/linux/memcontrol.h | 196 ++++++++++++++++++++++---------------------
include/linux/mmzone.h | 2 +-
include/linux/page_counter.h | 4 +-
include/linux/swap.h | 12 +--
mm/memcontrol.c | 37 ++++----
mm/page_counter.c | 2 +-
mm/page_io.c | 14 ++--
mm/swap.h | 2 +-
8 files changed, 138 insertions(+), 131 deletions(-)
---
base-commit: 178b3d97bf1f15f598ea7cc615a40c115e528e1c
change-id: 20260807-folio_memcg-const-4a67e40d485b
Best regards,
--
Tal Zussman <tz2294@columbia.edu>
next reply other threads:[~2026-09-02 19:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-02 19:27 Tal Zussman [this message]
2026-09-02 19:27 ` [PATCH 01/11] mm: memcontrol: take a const folio in folio_memcg() and friends Tal Zussman
2026-09-02 19:27 ` [PATCH 02/11] mm: memcontrol: constify obj_cgroup_memcg() " Tal Zussman
2026-09-02 19:27 ` [PATCH 03/11] mm: memcontrol: constify the lruvec helpers Tal Zussman
2026-09-04 21:35 ` Tal Zussman
2026-09-02 19:27 ` [PATCH 04/11] mm/page_io: take a const folio in bio_associate_blkg_from_folio() Tal Zussman
2026-09-02 19:27 ` [PATCH 05/11] mm: memcontrol: constify the mem_cgroup accessors Tal Zussman
2026-09-02 19:27 ` [PATCH 06/11] mm: page_counter: constify page_counter_read() and page_counter_margin() Tal Zussman
2026-09-02 19:27 ` [PATCH 07/11] mm: memcontrol: constify the reclaim protection helpers Tal Zussman
2026-09-02 19:27 ` [PATCH 08/11] mm: memcontrol: constify the memcg and lruvec stat readers Tal Zussman
2026-09-04 21:42 ` Tal Zussman
2026-09-02 19:27 ` [PATCH 09/11] mm: memcontrol: constify the swap accounting helpers Tal Zussman
2026-09-02 19:27 ` [PATCH 10/11] mm: memcontrol: constify mem_cgroup_swappiness() and mem_cgroup_get_max() Tal Zussman
2026-09-02 19:27 ` [PATCH 11/11] mm: memcontrol: constify the zswap and socket pressure helpers Tal Zussman
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