memory mapping · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>
• M Liam R. Howlett <liam@infradead.org>
• M Lorenzo Stoakes <ljs@kernel.org>
• R Vlastimil Babka <vbabka@kernel.org>
• R Jann Horn <jannh@google.com>
• R Pedro Falcato <pfalcato@suse.de>

Paths

• F include/trace/events/mmap.h
• F fs/proc/task_mmu.c
• F fs/proc/task_nommu.c
• F mm/interval_tree.c
• F mm/mincore.c
• F mm/mlock.c
• F mm/mmap.c
• F mm/mprotect.c
• F mm/mremap.c
• F mm/mseal.c
• F mm/msync.c
• F mm/nommu.c
• F mm/vma.c
• F mm/vma.h
• F mm/vma_exec.c
• F mm/vma_init.c
• F mm/vma_internal.h
• F tools/testing/selftests/mm/merge.c
• F tools/testing/vma/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v5 00/16] mm/rmap: index MAP_PRIVATE file-backed folios by anonymous pgoff
  2026-08-13 17:38 · 9 replies in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 00/20] mm/rmap: index MAP_PRIVATE file-backed folios by anonymous pgoff
  2026-08-12 17:15 · 1 reply in 7d · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>

Active reviewers (last 30 days)

• David Hildenbrand (Arm) <david@kernel.org>
  11 attestations (11 Acked-by) · last on 2026-08-13
• Gregory Price (Meta) <gourry@gourry.net>
  4 attestations (4 Reviewed-by) · last on 2026-08-13
• Xu Xin <xu.xin16@zte.com.cn>
  2 attestations (2 Reviewed-by) · last on 2026-08-13
• <hidden>
  1 attestation (1 Tested-by) · last on 2026-08-06

Recent patches

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

• HOTtoday REVIEWED: 15 (15M) [PATCH v5 16/16] tools/testing/selftests/mm: test anonymous page offset merge behaviour
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 15 (15M) [PATCH v5 15/16] tools/testing/vma: expand VMA merge tests to assert anon pgoff
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 15 (15M) [PATCH v5 14/16] mm/rmap: use anon pgoff to track MAP_PRIVATE file-backed anon folios
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 15 (15M) [PATCH v5 09/16] mm: propagate VMA anonymous page offset on map, remap, split + merge
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 15 (15M) [PATCH v5 08/16] tools/testing/vma: add tests for copy_vma() self-merge
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 15 (15M) [PATCH v5 07/16] mm/vma: fix self-merge check in copy_vma()
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 16 (16M) [PATCH v5 03/16] mm: introduce linear_anon_page_index()
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 15 (15M) [PATCH v5 02/16] mm: provide vma_[flags_]is_cow_mapping() and remove is_cow_mapping()
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday REVIEWED: 17 (17M) [PATCH v5 01/16] mm/vma: introduce VMA anon page offset field and add helpers
  2026-08-13 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d Re: [PATCH v4 17/20] mm/vma: only permit MAP_PRIVATE /dev/zero to be mapped anonymous
  2026-08-12 · "David Hildenbrand (Arm)" <david@kernel.org>
• WARM1d IN LINUX-NEXT: 1 (0M) [PATCH v4 20/20] tools/testing/selftests/mm: add MAP_PRIVATE-/dev/zero merge tests
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 19/20] tools/testing/vma: add test to assert MAP_PRIVATE-/dev/zero is anon
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 18/20] mm/vma: make MAP_PRIVATE-mapped /dev/zero mappings truly anonymous
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 17/20] mm/vma: only permit MAP_PRIVATE /dev/zero to be mapped anonymous
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 16/20] tools/testing/selftests/mm: test anonymous page offset merge behaviour
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 15/20] tools/testing/vma: expand VMA merge tests to assert anon pgoff
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 14/20] mm/rmap: use anon pgoff to track MAP_PRIVATE file-backed anon folios
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT: 15 (15M) [PATCH v4 09/20] mm: propagate VMA anonymous page offset on map, remap, split + merge
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 08/20] tools/testing/vma: add tests for copy_vma() self-merge
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 07/20] mm/vma: fix self-merge check in copy_vma()
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT: 1 (1M) [PATCH v4 03/20] mm: introduce linear_anon_page_index()
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT [PATCH v4 02/20] mm: provide vma_[flags_]is_cow_mapping() and remove is_cow_mapping()
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• WARM1d IN LINUX-NEXT: 17 (17M) [PATCH v4 01/20] mm/vma: introduce VMA anon page offset field and add helpers
  2026-08-06 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• HOTtoday [PATCH 4/9] mm: use hw_pte_t for generic PTE table storage
  2026-08-06 · Muhammad Usama Anjum <hidden>
• COOLING14d [PATCH RFC 07/11] mm/mremap: use ptep_get() for the destination PTE
  2026-07-27 · Muhammad Usama Anjum <hidden>
• COOLING14d [PATCH RFC 04/11] mm: use hw_pte_t for generic PTE table storage
  2026-07-27 · Muhammad Usama Anjum <hidden>
• COLD22d IN MM [PATCH v2 33/33] tools/testing/vma: output compared expression on ASSERT_[EQ, NE]()
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• COLD22d IN MM [PATCH v2 32/33] tools/testing/vma: default VMA, mm flag bits to 64-bit
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• COLD22d IN MM: 2 (2M) [PATCH v2 31/33] mm/vma: use guard clauses in can_vma_merge_[before, after]()
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• COLD22d IN MM: 2 (2M) [PATCH v2 30/33] mm/vma: correct incorrect vma.h inclusion
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>

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.

• COLD53d [RFC PATCH v4 06/27] mm/mlock: skip mlock for managed-memory folios
  2026-02-22 · Gregory Price <gourry@gourry.net>
• COLD53d [RFC PATCH v4 15/27] mm/mprotect: NP_OPS_PROTECT_WRITE - gate PTE/PMD write-upgrades
  2026-02-22 · Gregory Price <gourry@gourry.net>
• STALE167d [PATCH 16/61] proc: update /proc/PID/maps for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>