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

Most active threads (last 7 days)

• HOTtoday [PATCH mm-hotfixes v4 0/4] mm: fix UAF caused by race between ptdump and vmap pgtable freeing
  2026-07-16 21:32 · 2 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v7 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory
  2026-07-15 12:09 · 5 replies in 7d · Wen Jiang <hidden>
• WARM1d [RFC v2 PATCH 0/16] Optimize this_cpu_*() ops for non-x86 (ARM64 for this series)
  2026-07-15 18:06 · 3 replies in 7d · Yang Shi <hidden>
• DORMANTno replies [PATCH v2 3/3] feat: grow vrealloc vm_area mappings in place
  2026-07-16 11:57 · 0 replies in 7d · deepakroag <hidden>
• WARM1d IN LINUX-NEXT [PATCH mm-hotfixes v3 0/4] mm: fix UAF caused by race between ptdump and vmap pgtable freeing
  2026-07-14 17:25 · 2 replies in 7d · Lorenzo Stoakes <ljs@kernel.org>
• WARM1d [PATCH 1/4] mm: vmpressure: scale sampling window with machine size
  2026-07-15 14:37 · 1 reply in 7d · deepakraog <hidden>
• WARM2d [PATCH v6 0/4] s390/mm: Batch PTE updates in lazy MMU mode
  2026-07-15 13:22 · 1 reply in 7d · Alexander Gordeev <agordeev@linux.ibm.com>
• WARM2d [PATCH v6 0/6] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory
  2026-07-13 15:19 · 2 replies in 7d · Wen Jiang <hidden>
• WARM1d [PATCH mm-hotfixes v2 0/4] mm: fix UAF caused by race between ptdump and vmap pgtable freeing
  2026-07-12 10:44 · 2 replies in 7d · Lorenzo Stoakes <ljs@kernel.org>

Active reviewers (last 30 days)

• Xueyuan Chen <hidden>
  17 attestations (17 Tested-by) · last on 2026-07-15
• Dev Jain <dev.jain@arm.com>
  16 attestations (4 Co-developed-by, 11 Reviewed-by, 1 Suggested-by) · last on 2026-07-16
• Leo Yan <leo.yan@arm.com>
  9 attestations (9 Tested-by) · last on 2026-07-15
• Mike Rapoport (Microsoft) <rppt@kernel.org>
  6 attestations (3 Acked-by, 3 Reviewed-by) · last on 2026-07-16
• Uladzislau Rezki (Sony) <urezki@gmail.com>
  5 attestations (5 Reviewed-by) · last on 2026-07-15
• David Hildenbrand (Arm) <david@kernel.org>
  4 attestations (3 Acked-by, 1 Reviewed-by) · last on 2026-07-16
• <hidden>
  4 attestations (4 Reported-by) · last on 2026-07-16
• Kiryl Shutsemau (Meta) <kas@kernel.org>
  3 attestations (2 Acked-by, 1 Reviewed-by) · last on 2026-07-16
• Will Deacon <will@kernel.org>
  2 attestations (2 Acked-by) · last on 2026-07-16
• Kevin Brodsky <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-07-15

Recent patches

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

• HOTtoday REVIEWED: 39 (39M) [PATCH mm-hotfixes v4 4/4] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-16 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 28 (28M) [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>
• DORMANTno replies [PATCH v2 3/3] feat: grow vrealloc vm_area mappings in place
  2026-07-16 · deepakroag <hidden>
• WARM1d [PATCH 14/16] mm: percpu: allocate and free local percpu vm area
  2026-07-15 · Yang Shi <hidden>
• WARM1d [PATCH 10/16] mm: percpu: prepare to use dedicated percpu area
  2026-07-15 · Yang Shi <hidden>
• WARM1d [PATCH 04/16] vmalloc: pass in pgd pointer for vmap{__vunmap}_range_noflush()
  2026-07-15 · Yang Shi <hidden>
• WARM1d [PATCH 3/4] mm: vrealloc: grow vm_area mappings in place
  2026-07-15 · deepakraog <hidden>
• WARM2d REVIEWED: 16 (15M) [PATCH v6 1/4] mm: Make lazy MMU mode context-aware
  2026-07-15 · Alexander Gordeev <agordeev@linux.ibm.com>
• WARM1d IN LINUX-NEXT: 6 (5M) [PATCH v7 7/7] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-07-15 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 3 (2M) [PATCH v7 6/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-15 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 2 (1M) [PATCH v7 5/7] mm/vmalloc: Extract vm_shift() to consolidate mapping shift selection
  2026-07-15 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 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>
• WARM1d IN LINUX-NEXT: 6 (5M) [PATCH v7 3/7] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-07-15 · Wen Jiang <hidden>
• WARM1d IN LINUX-NEXT: 24 (24M) [PATCH mm-hotfixes v3 4/4] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-14 · Lorenzo Stoakes <ljs@kernel.org>
• WARM1d IN LINUX-NEXT: 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>
• WARM2d Re: [PATCH v6 5/6] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-13 · Dev Jain <dev.jain@arm.com>
• WARM2d Re: [PATCH v6 0/6] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory
  2026-07-13 · Dev Jain <dev.jain@arm.com>
• WARM1d REVIEWED: 12 (12M) [PATCH mm-hotfixes v2 4/4] arm64: remove redundant concurrent ptdump UAF mitigation
  2026-07-12 · Lorenzo Stoakes <ljs@kernel.org>
• WARM1d 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>
• WARM3d [PATCH 2/2] Revert "arm64: Enable vmalloc-huge with ptdump"
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• WARM3d [PATCH 1/2] mm/vmalloc: acquire init_mm read lock on huge vmap promotion
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING5d IN LINUX-NEXT: 3 (3M) [PATCH v2 3/3] mm: split out vmalloc declarations from internal.h
  2026-07-09 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• WARM2d REVIEWED: 5 (4M) [PATCH v6 6/6] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-07-09 · Wen Jiang <hidden>
• WARM2d REVIEWED: 2 (1M) [PATCH v6 5/6] mm/vmalloc: map contiguous pages in batches for vmap() if possible
  2026-07-09 · Wen Jiang <hidden>
• WARM2d REVIEWED: 3 (2M) [PATCH v6 4/6] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-07-09 · Wen Jiang <hidden>
• WARM2d REVIEWED: 6 (5M) [PATCH v6 3/6] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-07-09 · Wen Jiang <hidden>
• COOLING4d [PATCH 3/3] mm: split out vmalloc declarations from internal.h
  2026-07-09 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING11d REVIEWED: 1 (0M) [PATCH v5 6/6] mm/vmalloc: align vm_area so vmap() can batch mappings
  2026-07-06 · Wen Jiang <hidden>
• COOLING11d REVIEWED: 1 (0M) [PATCH v5 4/6] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk
  2026-07-06 · Wen Jiang <hidden>
• COOLING11d REVIEWED: 1 (0M) [PATCH v5 3/6] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic
  2026-07-06 · 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.

• DORMANTno replies REVIEWED: 3 (3M) FAILED: Patch "mm/vmalloc: prevent RCU stalls in kasan_release_vmalloc_node" failed to apply to 6.12-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 3 (3M) FAILED: Patch "mm/vmalloc: prevent RCU stalls in kasan_release_vmalloc_node" failed to apply to 6.6-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 3 (3M) FAILED: Patch "mm/vmalloc: prevent RCU stalls in kasan_release_vmalloc_node" failed to apply to 6.1-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 3 (3M) FAILED: Patch "mm/vmalloc: prevent RCU stalls in kasan_release_vmalloc_node" failed to apply to 5.15-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 3 (3M) FAILED: Patch "mm/vmalloc: prevent RCU stalls in kasan_release_vmalloc_node" failed to apply to 5.10-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• STALE127d REVIEWED: 3 (3M) [PATCH] vmalloc: support __GFP_RETRY_MAYFAIL and __GFP_NORETRY
  2026-03-02 · "Uladzislau Rezki (Sony)" <urezki@gmail.com> · 1 Tested-by
• STALE116d REVIEWED: 12 (12M) [PATCH v6 1/6] mm/vmalloc: extract vm_area_free_pages() helper from vfree()
  2026-03-21 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org> · 1 Reviewed-by
• STALE113d REVIEWED: 12 (12M) [PATCH v7 1/6] mm/vmalloc: extract vm_area_free_pages() helper from vfree()
  2026-03-24 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org> · 1 Reviewed-by
• STALE107d REVIEWED: 12 (12M) [PATCH v8 1/6] mm/vmalloc: extract vm_area_free_pages() helper from vfree()
  2026-03-27 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org> · 1 Reviewed-by
• STALE101d REVIEWED: 15 (15M) [PATCH v9 1/4] mm/vmalloc: extract vm_area_free_pages() helper from vfree()
  2026-04-01 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org> · 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.

• STALE141d [PATCH v1 1/2] mm/vmalloc: export clear_vm_uninitialized_flag()
  2026-02-25 · Pasha Tatashin <pasha.tatashin@soleen.com>
• STALE136d [PATCH 1/2] mm/vmalloc: extract vmalloc_free_pages() helper from vfree()
  2026-03-02 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE127d [PATCH v2 2/2] mm/vmalloc: free unused pages on vrealloc() shrink
  2026-03-04 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE122d [PATCH v4 1/3] mm/vmalloc: extract vm_area_free_pages() helper from vfree()
  2026-03-14 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE122d [PATCH v4 3/3] lib/test_vmalloc: add vrealloc test case
  2026-03-14 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE116d [PATCH v5 3/3] lib/test_vmalloc: add vrealloc test case
  2026-03-17 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE116d [PATCH v6 2/6] mm/vmalloc: fix vrealloc() grow-in-place check
  2026-03-21 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE116d [PATCH v6 3/6] mm/vmalloc: zero newly exposed memory on vrealloc() grow
  2026-03-21 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE116d [PATCH v6 6/6] lib/test_vmalloc: add vrealloc test case
  2026-03-21 · Shivam Kalra via B4 Relay <devnull+shivamkalra98.zohomail.in@kernel.org>
• STALE85d [RFC PATCH v8 10/10] x86/mm, mm/vmalloc: Defer kernel TLB flush IPIs when tracking CR3 switches
  2026-03-24 · Valentin Schneider <vschneid@redhat.com>