documentation · Maintained

Maintainers

• M Jonathan Corbet <corbet@lwn.net>
• R Shuah Khan <skhan@linuxfoundation.org>
• R Randy Dunlap <rdunlap@infradead.org>

Paths

• F Documentation/
• F tools/lib/python/
• F tools/docs/
• F tools/net/ynl/pyynl/lib/doc_generator.py
• X Documentation/ABI/
• X Documentation/admin-guide/media/
• X Documentation/devicetree/
• X Documentation/driver-api/media/
• X Documentation/firmware-guide/acpi/
• X Documentation/i2c/
• X Documentation/netlink/
• X Documentation/power/
• X Documentation/spi/
• X Documentation/userspace-api/media/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [RFC PATCH 0/8] blk-iocost: BPF struct_ops cost model
  2026-09-08 10:03 · 1 reply in 7d · Tao Cui <hidden>
• COOLING6d [RFC 0/2] mm: add explicit goals to memcg memory.reclaim
  2026-09-04 06:53 · 2 replies in 7d · Li Zhe <hidden>
• WARM2d [PATCH 0/2] sched/fair: Reset incompatible burst on quota change
  2026-09-04 06:20 · 1 reply in 7d · Zhe Liu <hidden>

Active reviewers (last 30 days)

• Johannes Weiner <hannes@cmpxchg.org>
  1 attestation (1 Suggested-by) · last on 2026-08-25
• Kairui Song <kasong@tencent.com>
  1 attestation (1 Suggested-by) · last on 2026-08-25
• Michal Koutný <mkoutny@suse.com>
  1 attestation (1 Suggested-by) · last on 2026-08-24
• Tao Cui <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-08-23

Recent patches

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

• HOTtoday [RFC PATCH 8/8] docs: cgroup-v2: document io.cost ctrl=bpf option
  2026-09-08 · Tao Cui <hidden>
• DORMANTno replies [RFC 2/2] mm: add goal=demote to memory.reclaim
  2026-09-04 · Li Zhe <hidden>
• COOLING6d [RFC 1/2] mm: add goal=evict to memory.reclaim
  2026-09-04 · Li Zhe <hidden>
• WARM2d [PATCH v2 3/3] Documentation: describe CPU quota and burst ordering
  2026-09-04 · Zhe Liu <hidden>
• COOLING14d IN LINUX-NEXT [PATCH v2] docs: cgroup: document empty-write behavior of memory limit knobs
  2026-08-26 · Tao Cui <hidden>
• COOLING12d [PATCH v4 08/11] mm, swap: only charge physical swap entries
  2026-08-25 · Nhat Pham <nphamcs@gmail.com>
• COOLING12d [PATCH v4 01/11] mm, swap: add virtual swap device infrastructure
  2026-08-25 · Nhat Pham <nphamcs@gmail.com>
• COLD16d [PATCH v2] docs: cgroup-v2: fix misc.events key format description
  2026-08-24 · Cheng Lingfei via B4 Relay <devnull+chenglingfei.foxmail.com@kernel.org>
• COLD17d [PATCH] docs: cgroup-v2: fix misc.events key format description
  2026-08-24 · Cheng Lingfei <hidden>
• WARM3d REVIEWED: 1 (0M) [PATCH 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• COOLING13d [PATCH 06/11] memcg: register per-area usage counters in cgroupfs
  2026-08-21 · Eric Chanudet <hidden>
• COOLING13d [PATCH 03/11] cgroup: add memory_cma_accounting mount option
  2026-08-21 · Eric Chanudet <hidden>
• WARM2d [PATCH 2/2] Documentation: describe burst reset on quota changes
  2026-08-20 · Zhe Liu <hidden>
• COLD21d [RFC PATCH v3 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COOLING12d IN LINUX-NEXT [PATCH 1/9] memcg: make the v1 soft limit knob inert
  2026-08-11 · Shakeel Butt <shakeel.butt@linux.dev>
• COLD23d [PATCH] sched/psi: add cpu_prio pressure metric for high-priority task stalls
  2026-08-11 · shisiyuan <hidden>
• COLD29d [PATCH v2] cgroup/cpuset: Remove obsolete PFA_SPREAD_SLAB task flag
  2026-08-11 · Guopeng Zhang <hidden>
• COLD27d [RFC PATCH v2 3/4] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD30d [PATCH] cgroup/cpuset: Remove obsolete PFA_SPREAD_SLAB task flag
  2026-08-10 · Guopeng Zhang <hidden>
• COLD30d [PATCH] docs: cgroup-v2: fix stale "io" controller introduction
  2026-08-10 · Zhe Liu <hidden>
• COLD16d [PATCH v3 02/11] mm, swap: support zswap and zeroswap as vswap backends
  2026-08-06 · Nhat Pham <nphamcs@gmail.com>
• COLD35d [RFC PATCH v1 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-04 · Yu Kuai <yukuai@kernel.org>
• COLD38d REVIEWED: 1 (1M) [PATCH v4] Docs/admin-guide/cgroup-v2: document io.latency rotational vs non-rotational behavior
  2026-07-28 · Tao Cui <hidden>
• COLD37d [PATCH v3 01/13] mm/slab: skip kfence objects in allocation profiling
  2026-07-27 · "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
• COLD45d [PATCH] Docs/admin-guide/cgroup-v2: document hierarchical cpu.max throttling behavior
  2026-07-24 · Shaojie Sun <hidden>
• COLD48d [PATCH v2] Docs/admin-guide/cgroup-v1/memory: document memsw limit constraints
  2026-07-24 · Shaojie Sun <hidden>
• COLD38d [RFC PATCH v1 1/2] KVM: arm64: CCA: Add support for configuring the Realm MEC policy
  2026-07-24 · Kohei Enju <hidden>
• COLD45d [PATCH] docs: cgroup-v2: mark memory.pressure and io.pressure as read-write
  2026-07-24 · Tao Cui <hidden>
• COLD48d [PATCH] Docs/admin-guide/cgroup-v1/memory: document memsw limit constraints
  2026-07-23 · Shaojie Sun <hidden>
• COLD42d [PATCH v4 01/16] mm: hugetlb: Track used_hpages when getting/putting pages from subpool
  2026-07-22 · Ackerley Tng via B4 Relay <devnull+ackerleytng.google.com@kernel.org>

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.

• STALE77d REVIEWED: 1 (1M) [PATCH v2 2/2] cgroup/cpuset: Rebind/migrate mm only for threadgroup leader in cpuset_update_tasks_nodemask()
  2026-06-23 · Waiman Long <longman@redhat.com> · 1 Reviewed-by
• COLD48d REVIEWED: 3 (3M) [PATCH v10 2/6] mm: swap: associate swap devices with tiers
  2026-07-13 · Youngjun Park <youngjun.park@lge.com> · 1 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.

• STALE174d [PATCH v4 01/21] mm/swap: decouple swap cache from physical swap infrastructure
  2026-03-18 · Nhat Pham <nphamcs@gmail.com>
• STALE131d [PATCH v5 01/21] mm/swap: decouple swap cache from physical swap infrastructure
  2026-03-20 · Nhat Pham <nphamcs@gmail.com>
• STALE150d [PATCH RFC 01/13] mm/rmap: remove folio->_nr_pages_mapped
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE150d [PATCH RFC 02/13] fs/proc/task_mmu: remove CONFIG_PAGE_MAPCOUNT handling for "mapmax"
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE150d [PATCH RFC 03/13] fs/proc/page: remove CONFIG_PAGE_MAPCOUNT handling for kpagecount
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE150d [PATCH RFC 04/13] fs/proc/task_mmu: remove CONFIG_PAGE_MAPCOUNT handling for PM_MMAP_EXCLUSIVE
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE150d [PATCH RFC 06/13] fs/proc/task_mmu: remove CONFIG_PAGE_MAPCOUNT handling in smaps_account()
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE150d [PATCH RFC 07/13] mm/rmap: remove CONFIG_PAGE_MAPCOUNT
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• DORMANTno replies [PATCH RFC 13/13] mm/rmap: support arbitrary folio mappings
  2026-04-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE148d [PATCH v2 11/12] Documentation: cgroup-v2: Document dynamic housekeeping (DHM)
  2026-04-13 · Qiliang Yuan <hidden>