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

Active reviewers (last 30 days)

• Tao Cui <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-09-18
• Nilay Shroff <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-09-18

Recent patches

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

• COOLING6d [PATCH v4 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-09-20 · Yu Kuai <yukuai@kernel.org>
• COOLING9d REVIEWED: 2 (0M) [PATCH v3 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-09-18 · Yu Kuai <yukuai@kernel.org>
• COOLING11d REVIEWED: 1 (0M) [PATCH v2 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-09-13 · Yu Kuai <yukuai@kernel.org>
• COOLING14d REVIEWED: 1 (0M) [PATCH 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• COLD38d [RFC PATCH v3 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD44d [RFC PATCH v2 3/4] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD52d [RFC PATCH v1 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-04 · Yu Kuai <yukuai@kernel.org>
• STALE606d REVIEWED: 5 (3M) [PATCH v2] treewide: const qualify ctl_tables where applicable
  2025-01-10 · Joel Granados <joel.granados@kernel.org>
• STALE625d [PATCH] treewide: const qualify ctl_tables where applicable
  2025-01-09 · Joel Granados <joel.granados@kernel.org>
• STALE1192d [PATCH 09/11] sysctl: Remove the end element in sysctl table arrays
  2023-06-21 · Joel Granados <hidden>
• STALE1944d LANDED [PATCH 3/8] block: move bd_mutex to struct gendisk
  2021-05-25 · Christoph Hellwig <hch@lst.de>
• STALE1957d [PATCH 3/8] block: move bd_mutex to struct gendisk
  2021-05-12 · Christoph Hellwig <hch@lst.de>
• STALE1998d [PATCH 10/15] block: move bd_mutex to struct gendisk
  2021-03-30 · Christoph Hellwig <hch@lst.de>
• STALE2049d [PATCH 76/78] filemap: use ->f_mapping over ->i_mapping consistently
  2020-11-16 · Christoph Hellwig <hch@lst.de>
• STALE2193d REVIEWED: 10 (9M) [PATCH 13/13] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
  2020-09-24 · Christoph Hellwig <hch@lst.de>
• STALE2193d REVIEWED: 10 (9M) [PATCH 11/13] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
  2020-09-24 · Christoph Hellwig <hch@lst.de>
• STALE2193d REVIEWED: 10 (9M) [PATCH 12/13] bdi: invert BDI_CAP_NO_ACCT_WB
  2020-09-24 · Christoph Hellwig <hch@lst.de>
• STALE2195d REVIEWED: 10 (9M) [PATCH 12/13] bdi: invert BDI_CAP_NO_ACCT_WB
  2020-09-21 · Christoph Hellwig <hch@lst.de>
• STALE2195d REVIEWED: 10 (9M) [PATCH 11/13] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
  2020-09-21 · Christoph Hellwig <hch@lst.de>
• STALE2195d REVIEWED: 10 (9M) [PATCH 13/13] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
  2020-09-21 · Christoph Hellwig <hch@lst.de>
• STALE2202d REVIEWED: 1 (0M) [PATCH 10/12] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
  2020-09-15 · Christoph Hellwig <hch@lst.de>
• STALE2202d REVIEWED: 1 (0M) [PATCH 11/12] bdi: invert BDI_CAP_NO_ACCT_WB
  2020-09-15 · Christoph Hellwig <hch@lst.de>
• STALE2202d REVIEWED: 1 (0M) [PATCH 12/12] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
  2020-09-15 · Christoph Hellwig <hch@lst.de>
• STALE2199d [PATCH 10/12] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
  2020-09-10 · Christoph Hellwig <hch@lst.de>
• STALE2199d [PATCH 12/12] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
  2020-09-10 · Christoph Hellwig <hch@lst.de>
• STALE2199d [PATCH 11/12] bdi: invert BDI_CAP_NO_ACCT_WB
  2020-09-10 · Christoph Hellwig <hch@lst.de>
• STALE2216d [PATCH 1/9] Documentation/filesystems/locking.rst: remove an incorrect sentence
  2020-09-01 · Christoph Hellwig <hch@lst.de>
• STALE2203d [PATCH 12/14] bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag
  2020-07-26 · Christoph Hellwig <hch@lst.de>
• STALE2203d [PATCH 13/14] bdi: invert BDI_CAP_NO_ACCT_WB
  2020-07-26 · Christoph Hellwig <hch@lst.de>
• STALE2203d [PATCH 14/14] bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
  2020-07-26 · Christoph Hellwig <hch@lst.de>

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.

• COLD44d [RFC PATCH v2 3/4] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>