memory management - userfaultfd · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>
• M Mike Rapoport <rppt@kernel.org>
• R Peter Xu <peterx@redhat.com>

Paths

• F Documentation/admin-guide/mm/userfaultfd.rst
• F include/asm-generic/pgtable_uffd.h
• F include/linux/userfaultfd_k.h
• F include/uapi/linux/userfaultfd.h
• F mm/userfaultfd.c
• F tools/testing/selftests/mm/uffd-*.[ch]

Last 30 days

Recent patches

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

• STALE336d REVIEWED: 1 (0M) [PATCH v4 05/10] mm/mremap: use an explicit uffd failure path for mremap
  2025-07-17 · Lorenzo Stoakes <hidden>
• STALE648d REVIEWED: 1 (0M) [PATCH v23 1/4] mm: add MAP_DROPPABLE for designating always lazily freeable mappings
  2024-07-12 · "Jason A. Donenfeld" <Jason@zx2c4.com>
• STALE710d LANDED Re: [PATCH v22 1/4] mm: add MAP_DROPPABLE for designating always lazily freeable mappings
  2024-07-11 · David Hildenbrand <hidden>
• STALE1055d [PATCH v9 03/42] mm: Make pte_mkwrite() take a VMA
  2023-06-13 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1190d REVIEWED: 17 (13M) [PATCH v8 13/40] mm: Make pte_mkwrite() take a VMA
  2023-03-19 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1190d REVIEWED: 17 (13M) [PATCH v7 13/41] mm: Make pte_mkwrite() take a VMA
  2023-02-27 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1209d REVIEWED: 1 (0M) [PATCH v6 13/41] mm: Make pte_mkwrite() take a VMA
  2023-02-18 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1220d REVIEWED: 2 (1M) [PATCH v5 19/39] mm: Fixup places that call pte_mkwrite() directly
  2023-01-19 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1264d REVIEWED: 2 (1M) [PATCH v4 18/39] mm: Fixup places that call pte_mkwrite() directly
  2022-12-03 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1308d REVIEWED: 2 (1M) [PATCH v3 17/37] mm: Fixup places that call pte_mkwrite() directly
  2022-11-04 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1326d [PATCH v2 17/39] mm: Fixup places that call pte_mkwrite() directly
  2022-09-29 · Rick Edgecombe <rick.p.edgecombe@intel.com>
• STALE1872d [PATCH v6 06/10] userfaultfd/shmem: modify shmem_mfill_atomic_pte to use install_pte()
  2021-05-03 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1872d REVIEWED: 3 (3M) [PATCH v6 05/10] userfaultfd/shmem: advertise shmem minor fault support
  2021-05-03 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1872d REVIEWED: 3 (3M) [PATCH v6 04/10] userfaultfd/shmem: support UFFDIO_CONTINUE for shmem
  2021-05-03 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1872d REVIEWED: 3 (3M) [PATCH v6 02/10] userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte
  2021-05-03 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1860d [PATCH v5 06/10] userfaultfd/shmem: modify shmem_mcopy_atomic_pte to use install_pte()
  2021-04-27 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1860d [PATCH v5 05/10] userfaultfd/shmem: advertise shmem minor fault support
  2021-04-27 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1860d [PATCH v5 04/10] userfaultfd/shmem: support UFFDIO_CONTINUE for shmem
  2021-04-27 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1860d REVIEWED: 3 (3M) [PATCH v5 02/10] userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte
  2021-04-27 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1881d REVIEWED: 2 (2M) [PATCH v4 04/10] userfaultfd/shmem: support minor fault registration for shmem
  2021-04-20 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1881d [PATCH v4 10/10] userfaultfd: update documentation to mention shmem minor faults
  2021-04-20 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1881d [PATCH v4 09/10] userfaultfd/shmem: modify shmem_mcopy_atomic_pte to use install_pte()
  2021-04-20 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1881d [PATCH v4 03/10] userfaultfd/shmem: support UFFDIO_CONTINUE for shmem
  2021-04-20 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1881d REVIEWED: 3 (3M) [PATCH v4 02/10] userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte
  2021-04-20 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1888d [PATCH v3 10/10] userfaultfd: update documentation to mention shmem minor faults
  2021-04-15 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1888d [PATCH v3 09/10] userfaultfd/shmem: modify shmem_mcopy_atomic_pte to use install_ptes
  2021-04-15 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1888d REVIEWED: 2 (2M) [PATCH v3 04/10] userfaultfd/shmem: support minor fault registration for shmem
  2021-04-15 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1888d [PATCH v3 03/10] userfaultfd/shmem: support UFFDIO_CONTINUE for shmem
  2021-04-15 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1888d REVIEWED: 3 (3M) [PATCH v3 02/10] userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte
  2021-04-15 · Axel Rasmussen <axelrasmussen@google.com>
• STALE1888d [PATCH v2 4/9] userfaultfd/shmem: support UFFDIO_CONTINUE for shmem
  2021-04-13 · Axel Rasmussen <axelrasmussen@google.com>