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 [PATCH for-next v3 0/9] mm/slab: introduce kfree_rcu_nolock() and improve slub_kunit coverage
  2026-06-15 11:07 · 7 replies in 7d · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH] mm/page_alloc: unify __alloc_frozen_pages[_nolock]_noprof()
  2026-06-17 15:29 · 0 replies in 7d · Brendan Jackman <jackmanb@google.com>

Active reviewers (last 30 days)

• Alexei Starovoitov <ast@kernel.org>
  3 attestations (3 Suggested-by) · last on 2026-06-15
• Vlastimil Babka <hidden>
  2 attestations (2 Suggested-by) · last on 2026-06-04
• Vlastimil Babka (SUSE) <vbabka@kernel.org>
  1 attestation (1 Suggested-by) · last on 2026-06-15
• Alexander Krabler <hidden>
  1 attestation (1 Reported-by) · last on 2026-06-04

Recent patches

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

• HOTtoday [PATCH] mm/page_alloc: unify __alloc_frozen_pages[_nolock]_noprof()
  2026-06-17 · Brendan Jackman <jackmanb@google.com>
• HOTtoday [PATCH for-next v3 8/9] mm/slab: introduce struct kfree_rcu_head and use in kfree_rcu_nolock()
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH for-next v3 7/9] mm/slab: introduce kfree_rcu_nolock()
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH for-next v3 6/9] mm/slab: allow kfree_rcu_sheaf() on PREEMPT_RT
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH for-next v3 5/9] mm/slab: extend deferred free mechanism to handle rcu sheaves
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH for-next v3 4/9] mm/slab: use call_rcu() in unknown context if irqs are enabled
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH for-next v3 3/9] mm/slab: handle the !allow_spin case in kfree_rcu_sheaf()
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [PATCH for-next v3 2/9] mm/slab, slub_kunit: register kprobe to trigger _nolock APIs
  2026-06-15 · "Harry Yoo (Oracle)" <harry@kernel.org>
• HOTtoday [RFC PATCH 3/3] mm/compaction: respect compact_unevictable_allowed in alloc_contig path
  2026-06-04 · Wandun Chen <hidden>
• HOTtoday [RFC PATCH 2/3] mm/compaction: add per-folio isolation tracepoint
  2026-06-04 · Wandun Chen <hidden>
• HOTtoday [RFC PATCH 1/3] mm/compaction: skip isolate mlocked folios when compact_unevictable_allowed=0
  2026-06-04 · Wandun Chen <hidden>
• DORMANTno replies [PATCH v2] mm/memcontrol: Avoid stuck FLUSHING_CACHED_CHARGE on isolated CPU
  2026-05-22 · Hui Zhu <hidden>
• COLD22d [PATCH v4 4/4] slub: apply new pw_queue_on() interface
  2026-05-19 · Leonardo Bras <hidden>
• COLD22d [PATCH v4 3/4] swap: apply new pw_queue_on() interface
  2026-05-19 · Leonardo Bras <hidden>
• COLD22d [PATCH v4 2/4] mm/swap: move bh draining into a separate workqueue
  2026-05-19 · Leonardo Bras <hidden>
• COOLING10d [PATCH v2 1/1] mm/mmu_notifier: Add async OOM cleanup via call_srcu()
  2026-04-30 · shaikh.kamal <hidden>
• DORMANTno replies [PATCH v2 1/1] mm/mmu_notifier: Add async OOM cleanup via call_srcu()
  2026-04-30 · shaikh.kamal <hidden>
• COOLING10d [PATCH v2 1/1] mm/mmu_notifier: Add async OOM cleanup via call_srcu()
  2026-04-29 · shaikh.kamal <hidden>
• COLD49d [PATCH] mm/memcontrol: Avoid stuck FLUSHING_CACHED_CHARGE on isolated CPU
  2026-04-29 · Hui Zhu <hidden>
• COOLING10d Re: [PATCH] KVM: mmu_notifier: make mn_invalidate_lock non-sleeping for non-blocking invalidations
  2026-03-28 · shaikh kamaluddin <hidden>
• COLD49d [PATCH 2/2] mm: introduce CONFIG_NUMA_MIGRATION and simplify CONFIG_MIGRATION
  2026-03-19 · "David Hildenbrand (Arm)" <david@kernel.org>
• COLD49d [PATCH 1/2] mm: remove CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE
  2026-03-19 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE105d Re: rtmutex deadlock and memory corruption when running gcc testsuite in next-20260303
  2026-03-04 · "Vlastimil Babka (SUSE)" <vbabka@kernel.org>
• STALE106d [PATCH 3/3] mm/page_alloc: remove pcpu_spin_* wrappers
  2026-02-27 · Vlastimil Babka <vbabka@kernel.org>
• STALE106d [PATCH 2/3] mm/page_alloc: remove IRQ saving/restoring from pcp locking
  2026-02-27 · Vlastimil Babka <vbabka@kernel.org>
• STALE106d [PATCH 1/3] mm/page_alloc: effectively disable pcp with CONFIG_SMP=n
  2026-02-27 · Vlastimil Babka <vbabka@kernel.org>
• STALE82d Re: [PATCH v4 18/22] slab: refill sheaves from all nodes
  2026-01-27 · Vlastimil Babka <hidden>
• STALE138d Re: [PATCH v4 08/10] mm/vma: improve and document __is_vma_write_locked()
  2026-01-26 · Lorenzo Stoakes <hidden>
• STALE138d REVIEWED: 8 (7M) [PATCH v4 10/10] mm/vma: add and use vma_assert_stabilised()
  2026-01-23 · Lorenzo Stoakes <hidden>
• STALE138d [PATCH v4 07/10] mm/vma: introduce helper struct + thread through exclusive lock fns
  2026-01-23 · Lorenzo Stoakes <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.

• STALE147d REVIEWED: 9 (7M) [PATCH v3 01/21] mm/slab: add rcu_barrier() to kvfree_rcu_barrier_on_cache()
  2026-01-16 · Vlastimil Babka <hidden> · 2 Reviewed-by, 1 Tested-by
• STALE147d REVIEWED: 7 (7M) [PATCH v3 19/21] slab: remove frozen slab checks from __slab_free()
  2026-01-16 · Vlastimil Babka <hidden> · 1 Reviewed-by
• STALE82d REVIEWED: 8 (7M) [PATCH v4 03/22] slab: add SLAB_CONSISTENCY_CHECKS to SLAB_NEVER_MERGE
  2026-01-23 · Vlastimil Babka <hidden> · 2 Reviewed-by
• STALE82d REVIEWED: 9 (7M) [PATCH v4 01/22] mm/slab: add rcu_barrier() to kvfree_rcu_barrier_on_cache()
  2026-01-23 · Vlastimil Babka <hidden> · 2 Reviewed-by, 1 Tested-by
• STALE82d REVIEWED: 7 (7M) [PATCH v4 10/22] slab: add optimized sheaf refill from partial list
  2026-01-23 · Vlastimil Babka <hidden> · 1 Reviewed-by
• STALE82d REVIEWED: 9 (8M) [PATCH v4 08/22] slab: make percpu sheaves compatible with kmalloc_nolock()/kfree_nolock()
  2026-01-23 · Vlastimil Babka <hidden> · 3 Reviewed-by
• STALE82d REVIEWED: 9 (8M) [PATCH v4 11/22] slab: remove cpu (partial) slabs usage from allocation paths
  2026-01-23 · Vlastimil Babka <hidden> · 3 Reviewed-by
• STALE82d REVIEWED: 8 (8M) [PATCH v4 20/22] slab: remove frozen slab checks from __slab_free()
  2026-01-23 · Vlastimil Babka <hidden> · 2 Reviewed-by
• STALE82d REVIEWED: 8 (8M) [PATCH v4 21/22] mm/slub: remove DEACTIVATE_TO_* stat items
  2026-01-23 · Vlastimil Babka <hidden> · 2 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.

• COLD25d [PATCH v18 22/42] dept: track PG_locked with dept
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COLD25d [PATCH v18 27/42] dept: assign dept map to mmu notifier invalidation synchronization
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COLD25d [PATCH v18 40/42] dept: track PG_writeback with dept
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• STALE176d [PATCH 1/2] mm: introduce pagetable_alloc_nolock()
  2025-12-12 · Yeoreum Yun <hidden>
• STALE152d [PATCH RFC v2 07/20] slab: handle kmalloc sheaves bootstrap
  2026-01-12 · Vlastimil Babka <hidden>
• STALE152d [PATCH RFC v2 10/20] slab: remove SLUB_CPU_PARTIAL
  2026-01-12 · Vlastimil Babka <hidden>
• STALE152d [PATCH RFC v2 11/20] slab: remove the do_slab_free() fastpath
  2026-01-12 · Vlastimil Babka <hidden>
• STALE152d [PATCH RFC v2 14/20] slab: remove struct kmem_cache_cpu
  2026-01-12 · Vlastimil Babka <hidden>
• STALE152d [PATCH RFC v2 15/20] slab: remove unused PREEMPT_RT specific macros
  2026-01-12 · Vlastimil Babka <hidden>
• STALE152d [PATCH RFC v2 16/20] slab: refill sheaves from all nodes
  2026-01-12 · Vlastimil Babka <hidden>