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 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-ext4 (capped at 30), ordered by date desc.

• COLD46d [PATCH 03/12] swap,fs: move swapfile operations to struct file_operations
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• COLD46d [PATCH 02/12] swap: move boilerplate code into the core swap code
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• STALE98d [PATCH 46/53] Remove references to d_add() in documentation and comments.
  2026-03-12 · NeilBrown <hidden>
• STALE98d [PATCH 02/53] VFS: enhance d_splice_alias() to handle in-lookup dentries
  2026-03-12 · NeilBrown <hidden>
• STALE109d [PATCH v3 04/12] vfs: widen trace event i_ino fields to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE121d [PATCH v2 006/110] trace: reorder TP_STRUCT__entry fields for better packing on 32-bit
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE121d [PATCH v2 005/110] trace: store i_ino as u64 instead of ino_t/unsigned long
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE126d [PATCH 03/61] trace: update VFS-layer trace events for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE127d [PATCH] mm: fix pagecache_isize_extended() early-return bypass for large folio mappings
  2026-02-26 · Morduan Zang <hidden>
• STALE127d [PATCH v1] mm: annotate data race of f_ra.prev_pos
  2026-02-26 · Jiayuan Chen <jiayuan.chen@linux.dev>
• STALE119d [PATCH v2 4/4] folio_batch: Rename PAGEVEC_SIZE to FOLIO_BATCH_SIZE
  2026-02-25 · Tal Zussman <hidden>
• STALE119d [PATCH v2 3/4] folio_batch: Rename pagevec.h to folio_batch.h
  2026-02-25 · Tal Zussman <hidden>
• STALE126d [PATCH RFC v2 1/2] filemap: defer dropbehind invalidation from IRQ context
  2026-02-25 · Tal Zussman <hidden>
• STALE136d Re: fsverity speedup and memory usage optimization v5
  2026-02-02 · Eric Biggers <ebiggers@kernel.org>
• STALE136d LANDED [PATCH 02/11] readahead: push invalidate_lock out of page_cache_ra_unbounded
  2026-02-02 · Christoph Hellwig <hch@lst.de>
• STALE143d [PATCH v2 10/13] mm: make vm_area_desc utilise vma_flags_t only
  2026-01-22 · Lorenzo Stoakes <hidden>
• STALE162d [PATCH RESEND 09/12] mm: make vm_area_desc utilise vma_flags_t only
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE165d [PATCH 09/12] mm: make vm_area_desc utilise vma_flags_t only
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE120d [PATCH 23/24] filelock: default to returning -EINVAL when ->setlease operation is NULL
  2026-01-08 · Jeff Layton <jlayton@kernel.org>
• STALE187d REVIEWED: 1 (0M) [PATCH] fs/ext4: Initialize new folios before use
  2025-12-23 · Bartlomiej Kubik <hidden>
• COLD41d [PATCH v18 40/42] dept: track PG_writeback with dept
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COLD41d [PATCH v18 22/42] dept: track PG_locked with dept
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• STALE212d REVIEWED: 2 (2M) [PATCH RESEND v3] vfs: remove the excl argument from the ->create() inode_operation
  2025-12-01 · Jeff Layton <jlayton@kernel.org>
• DORMANTno replies REVIEWED: 2 (2M) [PATCH v3] vfs: remove the excl argument from the ->create() inode_operation
  2025-11-10 · Jeff Layton <jlayton@kernel.org>
• STALE235d [PATCH v2] vfs: remove the excl argument from the ->create() inode_operation
  2025-11-07 · Jeff Layton <jlayton@kernel.org>
• STALE246d [PATCH 10/10] mm: rename filemap_fdatawrite_range_kick to filemap_flush_range
  2025-10-24 · Christoph Hellwig <hch@lst.de>
• STALE246d REVIEWED: 17 (16M) [PATCH 09/10] mm: remove __filemap_fdatawrite_range
  2025-10-24 · Christoph Hellwig <hch@lst.de>
• STALE246d REVIEWED: 18 (16M) [PATCH 08/10] mm: remove filemap_fdatawrite_wbc
  2025-10-24 · Christoph Hellwig <hch@lst.de>
• STALE246d REVIEWED: 1 (0M) [PATCH 07/10] mm: remove __filemap_fdatawrite
  2025-10-24 · Christoph Hellwig <hch@lst.de>
• STALE246d REVIEWED: 9 (7M) [PATCH 06/10] mm,btrfs: add a filemap_flush_nr helper
  2025-10-24 · 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.

• STALE187d REVIEWED: 1 (0M) [PATCH] fs/ext4: Initialize new folios before use
  2025-12-23 · Bartlomiej Kubik <hidden> · 1 Tested-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.

• STALE165d [PATCH 09/12] mm: make vm_area_desc utilise vma_flags_t only
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE121d [PATCH v2 005/110] trace: store i_ino as u64 instead of ino_t/unsigned long
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE121d [PATCH v2 006/110] trace: reorder TP_STRUCT__entry fields for better packing on 32-bit
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE98d [PATCH 02/53] VFS: enhance d_splice_alias() to handle in-lookup dentries
  2026-03-12 · NeilBrown <hidden>
• STALE98d [PATCH 46/53] Remove references to d_add() in documentation and comments.
  2026-03-12 · NeilBrown <hidden>