vmalloc · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>
• M Uladzislau Rezki <urezki@gmail.com>

Paths

• F include/linux/vmalloc.h
• F mm/vmalloc.c
• F mm/vmalloc.h
• F lib/test_vmalloc.c

Last 30 days

Most active threads (last 7 days)

• WARM2d IN LINUX-NEXT [PATCH v3 0/6] arch, mm/execmem: resolve confusion about set_direct_map_valid_noflush()
  2026-09-03 09:29 · 4 replies in 7d · "Mike Rapoport (Microsoft)" <rppt@kernel.org>

Active reviewers (last 30 days)

• Uladzislau Rezki (Sony) <urezki@gmail.com>
  4 attestations (4 Reviewed-by) · last on 2026-09-03
• Alexander Grubnikov <hidden>
  1 attestation (1 Acked-by) · last on 2026-08-27
• Ilya Hanov <hidden>
  1 attestation (1 Acked-by) · last on 2026-08-27
• Denis Darvish <hidden>
  1 attestation (1 Acked-by) · last on 2026-08-27
• Artem Kuzin <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-08-27
• Nikita Panov <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-08-27

Recent patches

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

• WARM2d IN LINUX-NEXT [PATCH v3 4/6] mm/vmalloc: make set_area_direct_map HUGE_VMAP friendly
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM2d IN LINUX-NEXT: 3 (3M) [PATCH v3 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM2d IN LINUX-NEXT: 3 (3M) [PATCH v3 2/6] mm/vmalloc: set area's page_order after allocation succeeds
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM2d IN LINUX-NEXT [PATCH v3 1/6] set_memory: add number of pages parameter to set_direct_map APIs
  2026-09-03 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING6d [RFC 02/10] mm/vmalloc: Skip vmallocinfo NUMA stats for VM_SPARSE
  2026-08-27 · David Stevens <hidden>
• COOLING6d [RFC 04/10] mm: vmalloc: support creating aligned vm areas
  2026-08-27 · David Stevens <hidden>
• HOTtoday [RFC PATCH 18/18] mm: introduce kernel cmdline option "kernel_replication="
  2026-08-27 · Nikita Panov <hidden>
• HOTtoday REVIEWED: 3 (0M) [RFC PATCH 09/18] mm: add replicas allocation support for vmalloc
  2026-08-27 · Nikita Panov <hidden>
• COOLING9d [PATCH v2 4/6] mm/vmalloc: make set_area_direct_map HUGE_VMAP friendly
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING9d REVIEWED: 3 (3M) [PATCH v2 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING9d REVIEWED: 3 (3M) [PATCH v2 2/6] mm/vmalloc: set area's page_order after allocation succeeds
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING9d [PATCH v2 1/6] set_memory: add number of pages parameter to set_direct_map APIs
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COLD19d [PATCH 4/6] mm/vmalloc: make set_area_direct_map HUGE_VMAP friendly
  2026-08-16 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COLD19d [PATCH 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()
  2026-08-16 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COLD19d [PATCH 2/6] mm/vmalloc: set area's page_order after allocation succeeds
  2026-08-16 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COLD19d [PATCH 1/6] set_memory: add number of pages parameter to set_direct_map APIs
  2026-08-16 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COLD45d IN LINUX-NEXT: 41 (41M) [PATCH mm-hotfixes v6 5/5] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-23 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD45d IN LINUX-NEXT: 30 (30M) [PATCH mm-hotfixes v6 1/5] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-23 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD34d Re: [PATCH v7 6/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-22 · Wen Jiang <hidden>
• COLD42d REVIEWED: 41 (41M) [PATCH mm-hotfixes v5 5/5] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD42d REVIEWED: 30 (30M) [PATCH mm-hotfixes v5 1/5] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-17 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD52d REVIEWED: 41 (41M) [PATCH mm-hotfixes v4 4/4] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-16 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD52d REVIEWED: 30 (30M) [PATCH mm-hotfixes v4 1/4] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-16 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COOLING5d [PATCH 14/16] mm: percpu: allocate and free local percpu vm area
  2026-07-15 · Yang Shi <hidden>
• COOLING5d [PATCH 10/16] mm: percpu: prepare to use dedicated percpu area
  2026-07-15 · Yang Shi <hidden>
• COOLING5d [PATCH 04/16] vmalloc: pass in pgd pointer for vmap{__vunmap}_range_noflush()
  2026-07-15 · Yang Shi <hidden>
• COLD34d REVIEWED: 6 (5M) [PATCH v7 7/7] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-07-15 · Wen Jiang <hidden>
• COLD34d REVIEWED: 3 (2M) [PATCH v7 6/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-15 · Wen Jiang <hidden>
• COLD34d REVIEWED: 2 (1M) [PATCH v7 5/7] mm/vmalloc: Extract vm_shift() to consolidate mapping shift selection
  2026-07-15 · Wen Jiang <hidden>
• COLD34d REVIEWED: 3 (2M) [PATCH v7 4/7] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-07-15 · Wen Jiang <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.

• COLD54d REVIEWED: 11 (11M) [PATCH mm-hotfixes v2 1/4] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-12 · Lorenzo Stoakes <ljs@kernel.org> · 1 Reviewed-by
• COLD53d REVIEWED: 12 (12M) [PATCH mm-hotfixes v3 1/4] mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF
  2026-07-14 · Lorenzo Stoakes <ljs@kernel.org> · 2 Reviewed-by
• COLD34d REVIEWED: 6 (5M) [PATCH v7 7/7] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-07-15 · Wen Jiang <hidden> · 2 Reviewed-by, 2 Tested-by
• COOLING9d REVIEWED: 3 (3M) [PATCH v2 2/6] mm/vmalloc: set area's page_order after allocation succeeds
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org> · 1 Reviewed-by
• COOLING9d REVIEWED: 3 (3M) [PATCH v2 3/6] mm/vmalloc: constify vm parameter of get_vm_area_page_order()
  2026-08-23 · "Mike Rapoport (Microsoft)" <rppt@kernel.org> · 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.

• STALE133d [RFC PATCH 6/8] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE133d [RFC PATCH 8/8] mm/vmalloc: Stop scanning for compound pages after encountering small pages in vmap
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE115d [PATCH 04/11] mm: percpu: prepare to use dedicated percpu area
  2026-04-29 · Yang Shi <hidden>
• STALE115d [PATCH 08/11] vmalloc: pass in pgd pointer for vmap{__vunmap}_range_noflush()
  2026-04-29 · Yang Shi <hidden>
• STALE115d [PATCH 09/11] mm: percpu: allocate and free local percpu vm area
  2026-04-29 · Yang Shi <hidden>
• COOLING5d [PATCH 10/16] mm: percpu: prepare to use dedicated percpu area
  2026-07-15 · Yang Shi <hidden>
• COOLING5d [PATCH 14/16] mm: percpu: allocate and free local percpu vm area
  2026-07-15 · Yang Shi <hidden>