← All active subsystems in cgroups

memory management · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>

Paths

• F mm/
• F tools/mm/

Last 30 days

Most active threads (last 7 days)

• HOTtoday PENDING · 1 of 6 reviewed [PATCH v5 0/6] mm/vmscan: move tracepoints to mm/ and add MGLRU tracepoints
  2026-10-31 09:02 · 6 replies in 7d · Ridong Chen <ridong.chen@linux.dev>
• WARM1d PENDING · 4 of 5 reviewed [PATCH v2 0/5] memcg: clean up memory.high enforcement
  2026-10-30 20:54 · 5 replies in 7d · Shakeel Butt <shakeel.butt@linux.dev>
• WARM3d PENDING · 1 of 4 reviewed [PATCH v3 0/4] memcg: Misc cleanup and perf improvement for TCP.
  2026-10-29 19:44 · 4 replies in 7d · Kuniyuki Iwashima <kuniyu@google.com>
• WARM1d [PATCH mm-new v1 0/2] mm: vmscan: skip anon folios zswap would refuse when writeback is off
  2026-10-30 09:53 · 2 replies in 7d · Jiayuan Chen <jiayuan.chen@linux.dev>
• WARM3d [PATCH v2 0/6] memcg: Batch mod_memcg_state() for MEMCG_SOCK.
  2026-10-28 18:50 · 5 replies in 7d · Kuniyuki Iwashima <kuniyu@google.com>
• WARM2d [PATCH v3 0/8] memcg: dma-buf cgroup accounting and charge transfer
  2026-10-27 15:04 · 5 replies in 7d · Albert Esteve <hidden>
• WARM2d [PATCH v2] mm: move LRU size stat updates out of lru_lock in folio batches
  2026-10-29 20:42 · 0 replies in 7d · Joanne Koong <joannelkoong@gmail.com>
• WARM2d REVIEWED: 2 (2M) [PATCH v3] mm: memcontrol: fix NULL pointer deref and UAF from high_work_func() on dying memcg
  2026-10-29 20:19 · 0 replies in 7d · T.J. Mercier <tjmercier@google.com>
• WARM2d [PATCH 0/2] mm/vmscan: remove obsolete offlined memcg reclaim handling
  2026-10-28 01:06 · 2 replies in 7d · T.J. Mercier <tjmercier@google.com>
• WARM3d [PATCH v2] mm: memcontrol: fix NULL pointer deref from high_work_func() on dying memcg
  2026-10-28 18:35 · 0 replies in 7d · T.J. Mercier <tjmercier@google.com>

Active reviewers (last 30 days)

• Tejun Heo <tj@kernel.org>
  11 attestations (2 Acked-by, 9 Suggested-by) · last on 2026-10-30
• Johannes Weiner <hannes@cmpxchg.org>
  8 attestations (4 Reviewed-by, 4 Suggested-by) · last on 2026-10-29
• zhaozhengzhuo <hidden>
  7 attestations (7 Tested-by) · last on 2026-10-15
• Michal Hocko <mhocko@suse.com>
  5 attestations (4 Acked-by, 1 Suggested-by) · last on 2026-10-30
• Muchun Song <muchun.song@linux.dev>
  4 attestations (4 Acked-by) · last on 2026-10-31
• Harry Yoo (Meta) <harry@kernel.org>
  3 attestations (3 Reviewed-by) · last on 2026-10-30
• Shakeel Butt <shakeel.butt@linux.dev>
  3 attestations (3 Acked-by) · last on 2026-10-29
• Kairui Song <kasong@tencent.com>
  3 attestations (3 Suggested-by) · last on 2026-10-21
• Barry Song <baohua@kernel.org>
  2 attestations (2 Reviewed-by) · last on 2026-10-31
• Jan Kara <jack@suse.cz>
  2 attestations (2 Reviewed-by) · last on 2026-10-15

Recent patches

Most-recent 30 patches in this subsystem on cgroups (capped at 30), ordered by date desc.

• HOTtoday [PATCH v5 6/6] mm/mglru: add tracepoint for inc_max_seq()
  2026-10-31 · Ridong Chen <ridong.chen@linux.dev>
• HOTtoday [PATCH v5 5/6] mm/mglru: add tracepoint for scan_folios()
  2026-10-31 · Ridong Chen <ridong.chen@linux.dev>
• HOTtoday [PATCH v5 4/6] mm/vmscan: pass scan_control to the vmscan tracepoints
  2026-10-31 · Ridong Chen <ridong.chen@linux.dev>
• HOTtoday [PATCH v5 3/6] mm/vmscan: move struct scan_control to a dedicated header
  2026-10-31 · Ridong Chen <ridong.chen@linux.dev>
• HOTtoday REVIEWED: 1 (1M) [PATCH v5 2/6] mm/vmscan: move vmscan tracepoints to a local header
  2026-10-31 · Ridong Chen <ridong.chen@linux.dev>
• HOTtoday REVIEWED: 2 (2M) [PATCH v5 1/6] mm/memcontrol: drop unused vmscan tracepoint include
  2026-10-31 · Ridong Chen <ridong.chen@linux.dev>
• WARM1d REVIEWED: 1 (1M) [PATCH v2 5/5] memcg: simplify high limit handling after a charge
  2026-10-30 · Shakeel Butt <shakeel.butt@linux.dev>
• WARM1d REVIEWED: 1 (1M) [PATCH v2 4/5] memcg: use high_work for remote charges
  2026-10-30 · Shakeel Butt <shakeel.butt@linux.dev>
• WARM1d REVIEWED: 1 (1M) [PATCH v2 3/5] memcg: use high_work for kernel threads
  2026-10-30 · Shakeel Butt <shakeel.butt@linux.dev>
• WARM1d [PATCH v2 2/5] memcg: force charges from reclaim before trying the limits
  2026-10-30 · Shakeel Butt <shakeel.butt@linux.dev>
• WARM1d REVIEWED: 2 (2M) [PATCH v2 1/5] memcg: move memory.high enforcement out of try_charge_memcg()
  2026-10-30 · Shakeel Butt <shakeel.butt@linux.dev>
• WARM1d [PATCH mm-new v1 2/2] mm: vmscan: skip anon folios zswap would refuse when writeback is off
  2026-10-30 · Jiayuan Chen <jiayuan.chen@linux.dev>
• WARM1d [PATCH mm-new v1 1/2] mm: memcontrol: split mem_cgroup_may_zswap() out of obj_cgroup_may_zswap()
  2026-10-30 · Jiayuan Chen <jiayuan.chen@linux.dev>
• WARM2d [PATCH v2] mm: move LRU size stat updates out of lru_lock in folio batches
  2026-10-29 · Joanne Koong <joannelkoong@gmail.com>
• WARM2d REVIEWED: 2 (2M) [PATCH v3] mm: memcontrol: fix NULL pointer deref and UAF from high_work_func() on dying memcg
  2026-10-29 · T.J. Mercier <tjmercier@google.com>
• WARM3d [PATCH v3 4/4] memcg: Uncharge pages outside memcg_stock.lock in refill_stock().
  2026-10-29 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v3 3/4] memcg: Annotate slow paths in consume_stock() and refill_stock().
  2026-10-29 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d REVIEWED: 1 (1M) [PATCH v3 2/4] memcg: Reduce nesting in consume_stock() and refill_stock().
  2026-10-29 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v3 1/4] memcg: Remove unnecessary READ_ONCE() under memcg_stock.lock.
  2026-10-29 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v2 5/6] memcg: Uncharge pages outside memcg_stock.lock in __refill_stock().
  2026-10-28 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v2 4/6] memcg: Batch mod_memcg_state() for MEMCG_SOCK.
  2026-10-28 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v2 3/6] memcg: Annotate slow paths in consume_stock() and refill_stock().
  2026-10-28 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v2 2/6] memcg: Reduce nesting in consume_stock() and refill_stock().
  2026-10-28 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v2 1/6] memcg: Remove unnecessary READ_ONCE() under memcg_stock.lock.
  2026-10-28 · Kuniyuki Iwashima <kuniyu@google.com>
• WARM3d [PATCH v2] mm: memcontrol: fix NULL pointer deref from high_work_func() on dying memcg
  2026-10-28 · T.J. Mercier <tjmercier@google.com>
• WARM2d [PATCH 2/2] mm/mglru: stop rotating offlined memcgs to the old generation
  2026-10-28 · T.J. Mercier <tjmercier@google.com>
• WARM2d [PATCH 1/2] mm/vmscan: remove redundant !mem_cgroup_online() checks
  2026-10-28 · T.J. Mercier <tjmercier@google.com>
• WARM2d [PATCH v3 7/8] dma-buf: transfer memcg charges via DMA_BUF_IOCTL_XFER_CHARGE
  2026-10-27 · Albert Esteve <hidden>
• WARM2d [PATCH v3 4/8] security: dma-buf: Add dma_buf_charge_cgroup LSM hook
  2026-10-27 · Albert Esteve <hidden>
• WARM2d [PATCH v3 3/8] security: dma-buf: Add dma_buf_charge_task LSM hook
  2026-10-27 · Albert Esteve <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE168d REVIEWED: 1 (1M) [PATCH] memcg: cache obj_stock by memcg, not by objcg pointer
  2026-05-15 · Shakeel Butt <shakeel.butt@linux.dev> · 1 Tested-by
• STALE167d REVIEWED: 1 (1M) [PATCH v2] memcg: cache obj_stock by memcg, not by objcg pointer
  2026-05-17 · Shakeel Butt <shakeel.butt@linux.dev> · 1 Tested-by
• STALE153d REVIEWED: 1 (1M) [PATCH v7 2/4] mm: swap: associate swap devices with tiers +3 more in this series
  2026-05-27 · Youngjun Park <youngjun.park@lge.com> · 1 Reviewed-by
• STALE136d REVIEWED: 2 (2M) [PATCH v3 01/15] mm/slab: do not init any kfence objects on allocation +14 more in this series
  2026-06-15 · Vlastimil Babka (SUSE) <vbabka@kernel.org> · 2 Reviewed-by
• STALE122d REVIEWED: 1 (1M) [PATCH v9 1/6] mm: swap: introduce swap tier infrastructure +5 more in this series
  2026-06-20 · Youngjun Park <hidden> · 1 Reviewed-by
• STALE101d REVIEWED: 1 (1M) [PATCH v10 1/6] mm: swap: introduce swap tier infrastructure +5 more in this series
  2026-07-13 · Youngjun Park <youngjun.park@lge.com> · 1 Reviewed-by
• STALE103d REVIEWED: 1 (1M) [PATCH v3 02/13] mm: hugetlb: Return -ENOSPC on memcg charge failure +12 more in this series
  2026-07-21 · Ackerley Tng <hidden> · 1 Reviewed-by
• STALE95d REVIEWED: 3 (3M) [PATCH v4 02/16] mm: hugetlb: Return -ENOSPC on memcg charge failure +15 more in this series
  2026-07-22 · Ackerley Tng via B4 Relay <devnull+ackerleytng.google.com@kernel.org> · 2 Reviewed-by, 1 Tested-by
• STALE89d REVIEWED: 1 (1M) Re: [PATCH v3 10/13] mm/slab: reduce slabobj_ext memory with allocation profiling disabled
  2026-07-27 · Vlastimil Babka (SUSE) <vbabka@kernel.org> · 1 Reviewed-by
• STALE89d REVIEWED: 3 (3M) Re: [PATCH v3 06/13] mm/slab: abstract slabobj_ext.ref access
  2026-07-29 · Vlastimil Babka (SUSE) <vbabka@kernel.org> · 3 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE201d [PATCH RFC 1/2] mm, swap: fix potential race of charging into the wrong memcg +1 more in this series
  2026-04-07 · Kairui Song via B4 Relay <devnull+kasong.tencent.com@kernel.org>
• STALE203d [PATCH RFC 01/13] mm/rmap: remove folio->_nr_pages_mapped +12 more in this series
  2026-04-12 · David Hildenbrand (Arm) <david@kernel.org>
• STALE101d [RFC PATCH 3/9 v2] mm/memcontrol: Refactor page_counter charging in try_charge_memcg +8 more in this series
  2026-04-23 · Joshua Hahn <joshua.hahnjy@gmail.com>
• STALE152d [PATCH v6 03/22] mm: swap: add an abstract API for locking out swapoff +21 more in this series
  2026-05-05 · Nhat Pham <nphamcs@gmail.com>
• STALE179d [PATCH 1/2] mm/page_counter: decouple peak_reset from peak_write +1 more in this series
  2026-05-06 · Thadeu Lima de Souza Cascardo <hidden>
• STALE166d [PATCH RFC 1/5] memcg: Track exported dma-buffers +4 more in this series
  2026-05-12 · Albert Esteve <hidden>
• STALE169d Re: [PATCH v4 04/12] mm, swap: add support for stable large allocation in swap cache directly
  2026-05-15 · Kairui Song <hidden>
• DORMANTno replies Re: [PATCH v4 05/12] mm, swap: unify large folio allocation
  2026-05-16 · Kairui Song <hidden>
• STALE163d LANDED [PATCH v5 04/12] mm, swap: add support for stable large allocation in swap cache directly +11 more in this series
  2026-05-17 · Kairui Song via B4 Relay <devnull+kasong.tencent.com@kernel.org>
• DORMANTno replies Re: [PATCH v5 12/12] mm, swap: merge zeromap into swap table
  2026-05-22 · Kairui Song <hidden>