page cache · Supported

Maintainers

• M Matthew Wilcox <willy@infradead.org>
• M Jan Kara <jack@suse.cz>

Paths

• F Documentation/filesystems/locking.rst
• F Documentation/filesystems/vfs.rst
• F include/linux/pagemap.h
• F include/linux/writeback.h
• F include/trace/events/filemap.h
• F include/trace/events/readahead.h
• F include/trace/events/writeback.h
• F mm/filemap.c
• F mm/page-writeback.c
• F mm/readahead.c
• F mm/truncate.c

Last 30 days

Recent patches

Most-recent 30 patches in this subsystem on linux-s390 (capped at 30), ordered by date desc.

• COLD36d [PATCH v2 5/5] mm/filemap: Avoid retrying page faults on uptodate folios in filemap faults
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• COLD36d [PATCH v2 3/5] mm: Move folio_lock_or_retry() and drop __folio_lock_or_retry()
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• COLD36d 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>
• COLD19d REVIEWED: 28 (26M) [PATCH v12 06/16] mm: introduce AS_NO_DIRECT_MAP
  2026-04-10 · Kalyazin, Nikita <hidden>
• STALE109d REVIEWED: 28 (26M) [PATCH v11 06/16] mm: introduce AS_NO_DIRECT_MAP
  2026-03-17 · Kalyazin, Nikita <hidden>
• STALE139d [PATCH v1 12/16] mm: rename zap_vma_pages() to zap_vma()
  2026-02-27 · "David Hildenbrand (Arm)" <david@kernel.org>
• STALE144d REVIEWED: 28 (26M) [PATCH v10 05/15] mm: introduce AS_NO_DIRECT_MAP
  2026-01-26 · Kalyazin, Nikita <hidden>
• STALE182d REVIEWED: 27 (26M) [PATCH v9 03/13] mm: introduce AS_NO_DIRECT_MAP
  2026-01-14 · Kalyazin, Nikita <hidden>
• STALE116d Re: [RFC PATCH 0/2] mm: continue using per-VMA lock when retrying page faults after I/O
  2025-11-27 · Barry Song <hidden>
• STALE116d [RFC PATCH 1/2] mm/filemap: Retry fault by VMA lock if the lock was released for I/O
  2025-11-27 · Barry Song <hidden>
• STALE243d [PATCH v3 13/16] mm: remove non_swap_entry() and use softleaf helpers instead
  2025-11-10 · Lorenzo Stoakes <hidden>
• STALE243d REVIEWED: 1 (1M) [PATCH v3 10/16] mm: replace pmd_to_swp_entry() with softleaf_from_pmd()
  2025-11-10 · Lorenzo Stoakes <hidden>
• STALE260d [PATCH v2 13/16] mm: remove non_swap_entry() and use softleaf helpers instead
  2025-11-08 · Lorenzo Stoakes <hidden>
• STALE260d [PATCH v2 10/16] mm: replace pmd_to_swp_entry() with softleaf_from_pmd()
  2025-11-08 · Lorenzo Stoakes <hidden>
• STALE265d [PATCH 13/16] mm: remove non_swap_entry() and use leaf entry helpers instead
  2025-11-03 · Lorenzo Stoakes <hidden>
• STALE265d [PATCH 10/16] mm: replace pmd_to_swp_entry() with leafent_from_pmd()
  2025-11-03 · Lorenzo Stoakes <hidden>
• STALE268d [RFC PATCH 11/12] mm: rename non_swap_entry() to is_non_present_entry()
  2025-10-24 · Lorenzo Stoakes <hidden>
• STALE281d REVIEWED: 9 (9M) [PATCH v5 11/15] doc: update porting, vfs documentation for mmap_prepare actions
  2025-10-20 · Lorenzo Stoakes <hidden>
• STALE282d REVIEWED: 9 (9M) [PATCH v4 10/14] doc: update porting, vfs documentation for mmap_prepare actions
  2025-09-17 · Lorenzo Stoakes <hidden>
• STALE314d REVIEWED: 9 (9M) [PATCH v3 09/13] doc: update porting, vfs documentation for mmap_prepare actions
  2025-09-16 · Lorenzo Stoakes <hidden>
• STALE313d [PATCH v6 03/11] mm: introduce AS_NO_DIRECT_MAP
  2025-09-12 · Roy, Patrick <hidden>
• STALE313d REVIEWED: 1 (0M) [PATCH v6 01/11] filemap: Pass address_space mapping to ->free_folio()
  2025-09-12 · Roy, Patrick <hidden>
• STALE313d [PATCH v2 09/16] doc: update porting, vfs documentation for mmap_prepare actions
  2025-09-10 · Lorenzo Stoakes <hidden>
• STALE322d [PATCH 07/16] doc: update porting, vfs documentation for mmap_[complete, abort]
  2025-09-08 · Lorenzo Stoakes <hidden>
• STALE327d REVIEWED: 1 (0M) [PATCH v6 06/12] mm, s390: constify mapping related test/getter functions
  2025-09-01 · Max Kellermann <hidden>
• STALE327d REVIEWED: 3 (0M) [PATCH v6 02/12] mm: constify pagemap related test/getter functions
  2025-09-01 · Max Kellermann <hidden>
• STALE330d REVIEWED: 1 (0M) [PATCH v5 06/12] mm, s390: constify mapping related test functions for improved const-correctness
  2025-09-01 · Max Kellermann <hidden>
• STALE330d REVIEWED: 1 (0M) [PATCH v5 02/12] mm: constify pagemap related test functions for improved const-correctness
  2025-09-01 · Max Kellermann <hidden>
• STALE331d REVIEWED: 1 (0M) [PATCH v4 06/12] mm/util, s390: add const to pointer parameters for improved const-correctness
  2025-09-01 · Max Kellermann <hidden>
• STALE331d REVIEWED: 1 (0M) [PATCH v4 02/12] mm/pagemap: add `const` to pointer parameters for improved const-correctness
  2025-09-01 · Max Kellermann <hidden>

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.

• COLD36d [PATCH v2 3/5] mm: Move folio_lock_or_retry() and drop __folio_lock_or_retry()
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• COLD36d [PATCH v2 5/5] mm/filemap: Avoid retrying page faults on uptodate folios in filemap faults
  2026-04-30 · "Barry Song (Xiaomi)" <baohua@kernel.org>