x86 mm · Maintained

Maintainers

• M Dave Hansen <dave.hansen@linux.intel.com>
• M Andy Lutomirski <luto@kernel.org>
• M Peter Zijlstra <peterz@infradead.org>

Paths

• F arch/x86/mm/

Last 30 days

Active reviewers (last 30 days)

• Catalin Marinas <catalin.marinas@arm.com>
  2 attestations (2 Reviewed-by) · last on 2026-09-24
• Dave Hansen <dave.hansen@linux.intel.com>
  1 attestation (1 Suggested-by) · last on 2026-09-26
• Barry Song <baohua@kernel.org>
  1 attestation (1 Suggested-by) · last on 2026-09-11
• Suren Baghdasaryan <surenb@google.com>
  1 attestation (1 Suggested-by) · last on 2026-09-11
• Lorenzo Stoakes (ARM) <ljs@kernel.org>
  1 attestation (1 Suggested-by) · last on 2026-09-11
• Nanzhe Zhao <hidden>
  1 attestation (1 Tested-by) · last on 2026-09-11

Recent patches

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

• COOLING4d IN LINUX-NEXT [PATCH v2] arch, mm: promote DEBUG_WX to CHECK_WX
  2026-09-26 · "Mike Rapoport (Microsoft)" <rppt@kernel.org>
• COOLING9d REVIEWED: 3 (3M) [PATCH v6 6/8] dma: swiotlb: Centralize memory-encryption pool sizing
  2026-09-24 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COOLING11d REVIEWED: 3 (3M) [PATCH v5 4/6] dma: swiotlb: Centralize memory-encryption pool sizing
  2026-09-21 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COLD16d [PATCH v4 3/5] dma: swiotlb: Centralize memory-encryption pool sizing
  2026-09-14 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• WARM2d REVIEWED: 1 (0M) [PATCH v6] mm: retry page faults once under the per-VMA lock
  2026-09-11 · Hongru Zhang <hidden>
• COLD25d [PATCH v3 3/4] dma: swiotlb: Centralize memory-encryption pool sizing
  2026-09-04 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COLD46d [RFC PATCH v2 2/2] dma: swiotlb: Initialize and size shared default pools for memory encryption
  2026-08-13 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COLD46d [RFC PATCH v2 1/2] dma: swiotlb: Centralize default pool initialization and sizing
  2026-08-13 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COLD52d [RFC PATCH] dma: swiotlb: Size shared default pools for memory encryption
  2026-08-11 · "Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org>
• COLD54d [PATCH 12/22] x86/mm: use mm_is_kernel() for kernel mm checks
  2026-07-14 · Kevin Brodsky <hidden>
• STALE80d [PATCH mm-unstable RFC v4 1/7] x86/mm: use PTE-level pgprot for huge PFN helpers
  2026-05-26 · Yin Tirui <hidden>
• STALE103d Re: [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance
  2026-05-22 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE132d [PATCH v2 54/69] mm/sparse-vmemmap: Drop @pgmap from vmemmap population APIs
  2026-05-13 · Muchun Song <hidden>
• STALE103d REVIEWED: 5 (1M) [PATCH v2 1/5] mm/filemap: Retry fault by VMA lock if the lock was released for I/O
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• STALE138d IN MM: 30 (30M) [PATCH v8 3/6] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-28 · Muchun Song <hidden>
• STALE159d REVIEWED: 30 (30M) [PATCH v7 3/6] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-26 · Muchun Song <hidden>
• STALE162d REVIEWED: 30 (30M) [PATCH v6 3/7] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-24 · Muchun Song <hidden>
• STALE164d REVIEWED: 30 (30M) [PATCH v5 v5 3/6] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-23 · Muchun Song <hidden>
• STALE165d REVIEWED: 13 (13M) [PATCH v4 2/5] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-22 · Muchun Song <hidden>
• STALE166d REVIEWED: 11 (11M) [PATCH v3 2/4] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-21 · Muchun Song <hidden>
• STALE171d [PATCH v2 4/6] mm/sparse-vmemmap: Pass @pgmap argument to arch vmemmap_populate()
  2026-04-15 · Muchun Song <hidden>
• STALE171d [PATCH v2 2/6] mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  2026-04-15 · Muchun Song <hidden>
• STALE158d [PATCH 45/49] mm/sparse-vmemmap: drop @pgmap parameter from vmemmap populate APIs
  2026-04-05 · Muchun Song <hidden>
• STALE158d [PATCH 04/49] mm/sparse: add a @pgmap parameter to arch vmemmap_populate()
  2026-04-05 · Muchun Song <hidden>
• STALE158d [PATCH 02/49] mm/sparse: add a @pgmap argument to memory deactivation paths
  2026-04-05 · Muchun Song <hidden>
• STALE158d REVIEWED: 9 (9M) [PATCH v2 4/6] mm: change to return bool for pmdp_clear_flush_young()
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.com>
• STALE158d REVIEWED: 12 (12M) [PATCH v2 3/6] mm: change to return bool for pmdp_test_and_clear_young()
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.com>
• STALE158d REVIEWED: 12 (12M) [PATCH v2 5/6] mm: change to return bool for pudp_test_and_clear_young()
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.com>
• STALE158d REVIEWED: 12 (12M) [PATCH v2 2/6] mm: change to return bool for ptep_clear_flush_young()/clear_flush_young_ptes()
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.com>
• STALE158d REVIEWED: 12 (12M) [PATCH v2 1/6] mm: change to return bool for ptep_test_and_clear_young()
  2026-03-21 · Baolin Wang <baolin.wang@linux.alibaba.com>

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.

• WARM2d REVIEWED: 1 (0M) [PATCH v6] mm: retry page faults once under the per-VMA lock
  2026-09-11 · Hongru Zhang <hidden> · 1 Tested-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.

• STALE158d [PATCH 02/49] mm/sparse: add a @pgmap argument to memory deactivation paths
  2026-04-05 · Muchun Song <hidden>
• STALE158d [PATCH 04/49] mm/sparse: add a @pgmap parameter to arch vmemmap_populate()
  2026-04-05 · Muchun Song <hidden>
• STALE158d [PATCH 45/49] mm/sparse-vmemmap: drop @pgmap parameter from vmemmap populate APIs
  2026-04-05 · Muchun Song <hidden>
• STALE132d [PATCH v2 54/69] mm/sparse-vmemmap: Drop @pgmap from vmemmap population APIs
  2026-05-13 · Muchun Song <hidden>
• STALE80d [PATCH mm-unstable RFC v4 1/7] x86/mm: use PTE-level pgprot for huge PFN helpers
  2026-05-26 · Yin Tirui <hidden>