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)

• WARM1d [PATCH v10 00/15] userfaultfd: working set tracking for VM guest memory
  2026-07-08 11:14 · 5 replies in 7d · Kiryl Shutsemau <hidden>
• COOLING4d [PATCH v9 00/15] userfaultfd: working set tracking for VM guest memory
  2026-07-06 08:48 · 5 replies in 7d · Kiryl Shutsemau <hidden>

Active reviewers (last 30 days)

• Mike Rapoport (Microsoft) <rppt@kernel.org>
  20 attestations (8 Acked-by, 12 Reviewed-by) · last on 2026-07-08
• SeongJae Park <sj@kernel.org>
  12 attestations (12 Reviewed-by) · last on 2026-07-08
• Lorenzo Stoakes <ljs@kernel.org>
  4 attestations (4 Reviewed-by) · last on 2026-07-08

Recent patches

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

• WARM1d REVIEWED: 11 (11M) [PATCH v10 11/15] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM1d REVIEWED: 11 (11M) [PATCH v10 07/15] mm: preserve RWP marker across PTE rewrites
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM1d REVIEWED: 12 (12M) [PATCH v10 06/15] mm: add MM_CP_UFFD_RWP change_protection() flag
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM1d REVIEWED: 22 (22M) [PATCH v10 05/15] mm: add VM_UFFD_RWP VMA flag
  2026-07-08 · Kiryl Shutsemau <hidden>
• WARM1d REVIEWED: 12 (12M) [PATCH v10 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-08 · Kiryl Shutsemau <hidden>
• COOLING4d REVIEWED: 11 (11M) [PATCH v9 11/15] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING4d REVIEWED: 11 (11M) [PATCH v9 07/15] mm: preserve RWP marker across PTE rewrites
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING4d REVIEWED: 12 (12M) [PATCH v9 06/15] mm: add MM_CP_UFFD_RWP change_protection() flag
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING4d REVIEWED: 22 (22M) [PATCH v9 05/15] mm: add VM_UFFD_RWP VMA flag
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING4d REVIEWED: 12 (12M) [PATCH v9 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-06 · Kiryl Shutsemau <hidden>
• COOLING7d REVIEWED: 11 (11M) [PATCH v8 11/15] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING7d REVIEWED: 11 (11M) [PATCH v8 07/15] mm: preserve RWP marker across PTE rewrites
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING7d REVIEWED: 12 (12M) [PATCH v8 06/15] mm: add MM_CP_UFFD_RWP change_protection() flag
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING7d REVIEWED: 22 (22M) [PATCH v8 05/15] mm: add VM_UFFD_RWP VMA flag
  2026-07-03 · Kiryl Shutsemau <hidden>
• COOLING7d REVIEWED: 12 (12M) [PATCH v8 03/15] mm: rename uffd-wp PTE accessors to uffd
  2026-07-03 · Kiryl Shutsemau <hidden>
• HOTtoday [PATCH 30/30] tools/testing/vma: output compared expression on ASSERT_[EQ, NE]()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 29/30] tools/testing/vma: default VMA flag bits to 64-bit
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 28/30] mm/vma: use guard clauses in can_vma_merge_[before, after]()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 27/30] mm/vma: correct incorrect vma.h inclusion
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 26/30] mm/vma: introduce and use vma_set_pgoff()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 25/30] mm/vma: update vmg_adjust_set_range() to offset pgoff instead
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 24/30] mm/vma: update vma_shrink() to not pass unnecessary pgoff parameter
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 23/30] mm/vma: make vma_set_range() static, drop insert_vm_struct() decl
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 22/30] mm/vma: move __install_special_mapping() to vma.c
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 21/30] mm/vma: add and use vma_[add/sub]_pgoff()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 19/30] mm: use linear_page_[index, delta]() consistently
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 18/30] mm/vma: remove duplicative vma_pgoff_offset() helper
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 16/30] mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 14/30] mm/vma: minor cleanup of expand_[upwards, downwards]()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday [PATCH 13/30] mm/vma: refactor vmg_adjust_set_range() for clarity
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>

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.

• STALE122d REVIEWED: 10 (10M) Re: [PATCH v1 1/4] mm: move vma_kernel_pagesize() from hugetlb to mm.h
  2026-03-06 · "Lorenzo Stoakes (Oracle)" <ljs@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.

• STALE74d [RFC, PATCH 03/12] userfaultfd: implement UFFDIO_DEACTIVATE ioctl
  2026-04-14 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE74d [RFC, PATCH 09/12] mm/pagemap: add PAGE_IS_UFFD_DEACTIVATED to PAGEMAP_SCAN
  2026-04-14 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE67d [PATCH 04/14] mm: add VM_UFFD_RWP VMA flag
  2026-04-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE67d [PATCH 05/14] mm: add MM_CP_UFFD_RWP change_protection() flag
  2026-04-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• STALE67d [PATCH 06/14] mm: preserve RWP marker across PTE rewrites
  2026-04-27 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>