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 lib/test_vmalloc.c

Last 30 days

Active reviewers (last 30 days)

• Xueyuan Chen <hidden>
  4 attestations (4 Tested-by) · last on 2026-06-18
• Dev Jain <dev.jain@arm.com>
  1 attestation (1 Co-developed-by) · last on 2026-06-18

Recent patches

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

• WARM1d IN LINUX-NEXT: 1 (0M) [PATCH v4 6/6] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-06-18 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 1 (0M) [PATCH v4 5/6] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-06-18 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 1 (0M) [PATCH v4 4/6] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-06-18 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 1 (0M) [PATCH v4 3/6] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-06-18 · Wen Jiang <hidden>
• COLD26d REVIEWED: 1 (0M) [PATCH v3 6/6] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-05-22 · Wen Jiang <hidden>
• COLD26d REVIEWED: 1 (0M) [PATCH v3 5/6] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-05-22 · Wen Jiang <hidden>
• COLD26d REVIEWED: 1 (0M) [PATCH v3 4/6] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-05-22 · Wen Jiang <hidden>
• COLD26d REVIEWED: 1 (0M) [PATCH v3 3/6] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-05-22 · Wen Jiang <hidden>
• COLD44d REVIEWED: 1 (0M) [PATCH v2 7/7] mm/vmalloc: Stop scanning for compound pages after encountering small pages in vmap
  2026-05-14 · Wen Jiang <hidden>
• COLD44d REVIEWED: 1 (0M) [PATCH v2 6/7] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-05-14 · Wen Jiang <hidden>
• COLD44d REVIEWED: 1 (0M) [PATCH v2 5/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-05-14 · Wen Jiang <hidden>
• COLD44d REVIEWED: 1 (0M) [PATCH v2 4/7] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-05-14 · Wen Jiang <hidden>
• COLD44d REVIEWED: 1 (0M) [PATCH v2 3/7] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-05-14 · Wen Jiang <hidden>
• COLD49d [PATCH 09/11] mm: percpu: allocate and free local percpu vm area
  2026-04-29 · Yang Shi <hidden>
• COLD49d [PATCH 08/11] vmalloc: pass in pgd pointer for vmap{__vunmap}_range_noflush()
  2026-04-29 · Yang Shi <hidden>
• COLD49d [PATCH 04/11] mm: percpu: prepare to use dedicated percpu area
  2026-04-29 · Yang Shi <hidden>
• STALE67d Re: [RFC PATCH 5/8] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-04-08 · Dev Jain <dev.jain@arm.com>
• STALE67d [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>
• STALE67d [RFC PATCH 7/8] mm/vmalloc: Coalesce same page_shift mappings in vmap to avoid pgtable zigzag
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE67d [RFC PATCH 6/8] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE67d [RFC PATCH 5/8] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE67d [RFC PATCH 4/8] mm/vmalloc: Eliminate page table zigzag for huge vmalloc mappings
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE67d [RFC PATCH 3/8] mm/vmalloc: Extend vmap_small_pages_range_noflush() to support larger page_shift sizes
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE170d REVIEWED: 2 (0M) [PATCH v6 07/14] mm: introduce generic lazy_mmu helpers
  2025-12-15 · Kevin Brodsky <hidden>
• STALE172d [RESEND RFC PATCH 2/2] arm64/mm: Enable huge-vmalloc by default
  2025-12-12 · Dev Jain <dev.jain@arm.com>
• STALE172d [RESEND RFC PATCH 1/2] mm/vmalloc: Do not align size to huge size
  2025-12-12 · Dev Jain <dev.jain@arm.com>
• STALE210d REVIEWED: 1 (0M) [PATCH v5 06/12] mm: introduce generic lazy_mmu helpers
  2025-11-24 · Kevin Brodsky <hidden>
• STALE196d [RFC PATCH v7 30/31] x86/mm, mm/vmalloc: Defer kernel TLB flush IPIs under CONFIG_COALESCE_TLBI=y
  2025-11-14 · Valentin Schneider <vschneid@redhat.com>
• DORMANTno replies [RFC PATCH 2/2] arm64/mm: Enable vmalloc-huge by default
  2025-11-12 · Dev Jain <dev.jain@arm.com>
• STALE233d [RFC PATCH 1/2] mm/vmalloc: Do not align size to huge size
  2025-11-12 · Dev Jain <dev.jain@arm.com>

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.

• STALE172d [RESEND RFC PATCH 2/2] arm64/mm: Enable huge-vmalloc by default
  2025-12-12 · Dev Jain <dev.jain@arm.com>
• STALE67d [RFC PATCH 6/8] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-04-08 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE67d [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>
• COLD49d [PATCH 04/11] mm: percpu: prepare to use dedicated percpu area
  2026-04-29 · Yang Shi <hidden>
• COLD49d [PATCH 08/11] vmalloc: pass in pgd pointer for vmap{__vunmap}_range_noflush()
  2026-04-29 · Yang Shi <hidden>
• COLD49d [PATCH 09/11] mm: percpu: allocate and free local percpu vm area
  2026-04-29 · Yang Shi <hidden>