page cache · Supported

Maintainers

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

Paths

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

Last 30 days

Active reviewers (last 30 days)

• Lance Yang <lance.yang@linux.dev>
  3 attestations (3 Reviewed-by) · last on 2026-05-17
• David Hildenbrand (Arm) <david@kernel.org>
  3 attestations (3 Acked-by) · last on 2026-05-17
• Baolin Wang <baolin.wang@linux.alibaba.com>
  2 attestations (2 Reviewed-by) · last on 2026-05-17
• Matthew Wilcox (Oracle) <willy@infradead.org>
  1 attestation (1 Reviewed-by) · last on 2026-05-17
• Nico Pache <npache@redhat.com>
  1 attestation (1 Reviewed-by) · last on 2026-05-17

Recent patches

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

• COLD26d IN LINUX-NEXT: 17 (17M) [PATCH v6 09/14] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-05-17 · Zi Yan <ziy@nvidia.com>
• COLD26d IN LINUX-NEXT: 24 (24M) [PATCH v6 06/14] mm: fs: remove filemap_nr_thps*() functions and their users
  2026-05-17 · Zi Yan <ziy@nvidia.com>
• COLD26d IN LINUX-NEXT: 20 (20M) [PATCH v6 01/14] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-05-17 · Zi Yan <ziy@nvidia.com>
• COLD27d [PATCH 03/12] swap,fs: move swapfile operations to struct file_operations
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• COLD27d [PATCH 02/12] swap: move boilerplate code into the core swap code
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• COLD26d Re: [PATCH v5 01/14] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-05-07 · Zi Yan <ziy@nvidia.com>
• COLD26d Re: [PATCH v5 01/14] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-05-07 · Zi Yan <ziy@nvidia.com>
• COLD26d [PATCH v5 09/14] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-04-29 · Zi Yan <ziy@nvidia.com>
• COLD26d REVIEWED: 22 (22M) [PATCH v5 06/14] mm: fs: remove filemap_nr_thps*() functions and their users
  2026-04-29 · Zi Yan <ziy@nvidia.com>
• COLD26d REVIEWED: 4 (4M) [PATCH v5 01/14] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-04-29 · Zi Yan <ziy@nvidia.com>
• COLD49d [PATCH 7.2 v4 09/12] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-04-24 · Zi Yan <ziy@nvidia.com>
• COLD49d REVIEWED: 22 (22M) [PATCH 7.2 v4 06/12] mm: fs: remove filemap_nr_thps*() functions and their users
  2026-04-24 · Zi Yan <ziy@nvidia.com>
• COLD49d REVIEWED: 4 (4M) [PATCH 7.2 v4 01/12] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-04-24 · Zi Yan <ziy@nvidia.com>
• COLD48d [PATCH 7.2 v3 09/12] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-04-18 · Zi Yan <ziy@nvidia.com>
• COLD48d REVIEWED: 22 (22M) [PATCH 7.2 v3 06/12] mm: fs: remove filemap_nr_thps*() functions and their users
  2026-04-18 · Zi Yan <ziy@nvidia.com>
• COLD48d [PATCH 7.2 v3 01/12] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-04-18 · Zi Yan <ziy@nvidia.com>
• COLD58d [PATCH 7.2 v2 09/12] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-04-13 · Zi Yan <ziy@nvidia.com>
• COLD58d [PATCH 7.2 v2 06/12] mm: fs: remove filemap_nr_thps*() functions and their users
  2026-04-13 · Zi Yan <ziy@nvidia.com>
• STALE62d [PATCH v1 07/10] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-03-27 · Zi Yan <ziy@nvidia.com>
• STALE62d [PATCH v1 03/10] mm: fs: remove filemap_nr_thps*() functions and their users
  2026-03-27 · Zi Yan <ziy@nvidia.com>
• STALE82d [RFC PATCH 06/11] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-03-23 · Zi Yan <ziy@nvidia.com>
• STALE82d [RFC PATCH 03/11] mm: remove filemap_nr_thps*() functions
  2026-03-23 · Zi Yan <ziy@nvidia.com>
• STALE100d [PATCH v2 4/4] folio_batch: Rename PAGEVEC_SIZE to FOLIO_BATCH_SIZE
  2026-02-25 · Tal Zussman <hidden>
• STALE100d [PATCH v2 3/4] folio_batch: Rename pagevec.h to folio_batch.h
  2026-02-25 · Tal Zussman <hidden>
• STALE117d Re: fsverity speedup and memory usage optimization v5
  2026-02-02 · Eric Biggers <ebiggers@kernel.org>
• STALE117d LANDED [PATCH 02/11] readahead: push invalidate_lock out of page_cache_ra_unbounded
  2026-02-02 · Christoph Hellwig <hch@lst.de>
• STALE155d [PATCH v3 3/3] mm/filemap: remove read_cache_page_gfp()
  2026-01-10 · Qu Wenruo <hidden>
• STALE101d [PATCH 23/24] filelock: default to returning -EINVAL when ->setlease operation is NULL
  2026-01-08 · Jeff Layton <jlayton@kernel.org>
• STALE153d REVIEWED: 5 (5M) [PATCH 07/11] fs: add a ->sync_lazytime method
  2026-01-08 · Christoph Hellwig <hch@lst.de>
• STALE153d [PATCH 05/11] fs: refactor ->update_time handling
  2026-01-08 · Christoph Hellwig <hch@lst.de>

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.

• STALE173d REVIEWED: 4 (4M) [PATCH 07/10] fs: add a ->sync_lazytime method
  2025-12-17 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE153d REVIEWED: 4 (4M) [PATCH 07/11] fs: add a ->sync_lazytime method
  2025-12-23 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE158d REVIEWED: 5 (5M) [PATCH 07/11] fs: add a ->sync_lazytime method
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 2 Reviewed-by
• STALE153d REVIEWED: 5 (5M) [PATCH 07/11] fs: add a ->sync_lazytime method
  2026-01-08 · Christoph Hellwig <hch@lst.de> · 2 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.

• STALE155d [PATCH v3 3/3] mm/filemap: remove read_cache_page_gfp()
  2026-01-10 · Qu Wenruo <hidden>
• STALE82d [RFC PATCH 03/11] mm: remove filemap_nr_thps*() functions
  2026-03-23 · Zi Yan <ziy@nvidia.com>
• COLD58d [PATCH 7.2 v2 09/12] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-04-13 · Zi Yan <ziy@nvidia.com>
• COLD48d [PATCH 7.2 v3 09/12] mm/truncate: use folio_split() in truncate_inode_partial_folio()
  2026-04-18 · Zi Yan <ziy@nvidia.com>
• COLD26d Re: [PATCH v5 01/14] mm/khugepaged: remove READ_ONLY_THP_FOR_FS check
  2026-05-07 · Zi Yan <ziy@nvidia.com>