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

Most active threads (last 7 days)

• HOTtoday IN LINUX-NEXT [PATCH v2 00/33] mm: make VMA page offset handling more consistent
  2026-07-10 20:24 · 2 replies in 7d · Lorenzo Stoakes <ljs@kernel.org>

Active reviewers (last 30 days)

• Gregory Price <gourry@gourry.net>
  2 attestations (2 Reviewed-by) · last on 2026-07-10
• Pedro Falcato <pfalcato@suse.de>
  2 attestations (2 Reviewed-by) · last on 2026-07-10
• SJ Park <sj@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-07-10
• Ackerley Tng <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-07-10

Recent patches

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

• HOTtoday IN LINUX-NEXT: 3 (3M) [PATCH v2 18/33] mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• HOTtoday IN LINUX-NEXT: 3 (2M) [PATCH v2 17/33] mm: introduce and use linear_page_delta()
  2026-07-10 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING4d [PATCH 16/30] mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• COOLING4d [PATCH 15/30] mm: introduce and use linear_page_delta()
  2026-06-29 · Lorenzo Stoakes <ljs@kernel.org>
• STALE78d [PATCH v3 2/4] mm: kick writeback flusher for IOCB_DONTCACHE with targeted dirty tracking
  2026-04-26 · Jeff Layton <jlayton@kernel.org>
• STALE78d [PATCH v3 1/4] mm: add NR_DONTCACHE_DIRTY node page counter
  2026-04-26 · Jeff Layton <jlayton@kernel.org>
• STALE111d [PATCH 46/53] Remove references to d_add() in documentation and comments.
  2026-03-12 · NeilBrown <hidden>
• STALE111d [PATCH 02/53] VFS: enhance d_splice_alias() to handle in-lookup dentries
  2026-03-12 · NeilBrown <hidden>
• STALE121d [PATCH v3 04/12] vfs: widen trace event i_ino fields to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 006/110] trace: reorder TP_STRUCT__entry fields for better packing on 32-bit
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 005/110] trace: store i_ino as u64 instead of ino_t/unsigned long
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE138d [PATCH 03/61] trace: update VFS-layer trace events for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE139d [PATCH v1] mm: annotate data race of f_ra.prev_pos
  2026-02-26 · Jiayuan Chen <jiayuan.chen@linux.dev>
• STALE160d [RFC PATCH v1 09/37] KVM: guest_memfd: Skip LRU for guest_memfd folios
  2025-10-17 · Ackerley Tng <hidden>
• STALE295d [RFC PATCH v0] mm/vmscan: Add readahead LRU to improve readahead file page reclamation efficiency
  2025-09-16 · Lei Liu <hidden>
• STALE356d [PATCH v5 3/3] treewide: Switch from tsk->comm to tsk->comm_str which is 64 bytes long
  2025-07-16 · Bhupesh <hidden>
• STALE322d [PATCH 2/3] mm: update core kernel code to use vm_flags_t consistently
  2025-06-18 · Lorenzo Stoakes <hidden>
• STALE524d Re: [PATCHv3 06/11] mm/vmscan: Use PG_dropbehind instead of PG_reclaim
  2025-02-01 · Kairui Song <hidden>
• STALE524d REVIEWED: 1 (0M) [PATCHv3 09/11] mm: Remove PG_reclaim
  2025-01-30 · Kirill A. Shutemov <hidden>
• STALE524d [PATCHv3 11/11] mm: Rename PG_dropbehind to PG_reclaim
  2025-01-30 · Kirill A. Shutemov <hidden>
• STALE524d [PATCHv3 05/11] mm/truncate: Use folio_set_dropbehind() instead of deactivate_file_folio()
  2025-01-30 · Kirill A. Shutemov <hidden>
• STALE544d [PATCHv2 11/11] mm: Rename PG_dropbehind to PG_reclaim
  2025-01-15 · Kirill A. Shutemov <hidden>
• STALE544d [PATCHv2 09/11] mm: Remove PG_reclaim
  2025-01-15 · Kirill A. Shutemov <hidden>
• STALE544d [PATCHv2 05/11] mm/truncate: Use folio_set_dropbehind() instead of deactivate_file_folio()
  2025-01-15 · Kirill A. Shutemov <hidden>
• STALE547d Re: [PATCH 4/8] mm/swap: Use PG_dropbehind instead of PG_reclaim
  2025-01-15 · Yu Zhao <hidden>
• STALE547d [PATCH 8/8] mm: Remove PG_reclaim
  2025-01-13 · Kirill A. Shutemov <hidden>
• STALE532d REVIEWED: 5 (3M) [PATCH v2] treewide: const qualify ctl_tables where applicable
  2025-01-10 · Joel Granados <joel.granados@kernel.org>
• STALE551d [PATCH] treewide: const qualify ctl_tables where applicable
  2025-01-09 · Joel Granados <joel.granados@kernel.org>
• STALE685d LANDED [PATCH v2] writeback: Refine the show_inode_state() macro definition
  2024-08-28 · Julian Sun <hidden>
• STALE686d [PATCH] writeback: Refine the show_inode_state() macro definition
  2024-08-20 · Julian Sun <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.

• STALE133d [PATCH v2 005/110] trace: store i_ino as u64 instead of ino_t/unsigned long
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 006/110] trace: reorder TP_STRUCT__entry fields for better packing on 32-bit
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE111d [PATCH 02/53] VFS: enhance d_splice_alias() to handle in-lookup dentries
  2026-03-12 · NeilBrown <hidden>
• STALE111d [PATCH 46/53] Remove references to d_add() in documentation and comments.
  2026-03-12 · NeilBrown <hidden>
• STALE78d [PATCH v3 1/4] mm: add NR_DONTCACHE_DIRTY node page counter
  2026-04-26 · Jeff Layton <jlayton@kernel.org>