btrfs file system · Maintained

Maintainers

• M Chris Mason <clm@fb.com>
• M David Sterba <dsterba@suse.com>

Paths

• F Documentation/filesystems/btrfs.rst
• F fs/btrfs/
• F include/linux/btrfs*
• F include/trace/events/btrfs.h
• F include/uapi/linux/btrfs*

Last 30 days

Active reviewers (last 30 days)

• Qi Zheng <qi.zheng@linux.dev>
  2 attestations (2 Acked-by) · last on 2026-07-21
• Jan Kara <jack@suse.cz>
  2 attestations (2 Reviewed-by) · last on 2026-07-21
• Shakeel Butt <shakeel.butt@linux.dev>
  2 attestations (2 Reviewed-by) · last on 2026-07-21
• Baolin Wang <baolin.wang@linux.alibaba.com>
  1 attestation (1 Reviewed-by) · last on 2026-07-21

Recent patches

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

• HOTtoday REVIEWED: 20 (20M) [PATCH v2 1/2] fs: push nr_cached_objects memcg gating into individual filesystems
  2026-07-21 · Qi Zheng <qi.zheng@linux.dev>
• COOLING6d REVIEWED: 18 (18M) [PATCH v2] fs: push nr_cached_objects memcg gating into individual filesystems
  2026-07-15 · Usama Arif <usama.arif@linux.dev>
• COOLING14d [PATCH] fs: push nr_cached_objects memcg gating into individual filesystems
  2026-07-14 · Usama Arif <usama.arif@linux.dev>
• COLD30d [RFC PATCH 34/40] btrfs: allocate eb-attached btree pages as movable
  2026-05-20 · Rik van Riel <riel@surriel.com>
• COLD43d IN MM: 29 (29M) [PATCH v6 10/14] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-05-17 · Zi Yan <ziy@nvidia.com>
• STALE72d [PATCH 09/12] swap: push down setting sis->bdev into ->swap_activate
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• STALE72d [PATCH 03/12] swap,fs: move swapfile operations to struct file_operations
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• STALE72d [PATCH 02/12] swap: move boilerplate code into the core swap code
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• COOLING4d [PATCH RFC 10/32] mm: replace folio_test_workingset with folio_is_workingset
  2026-05-01 · Kairui Song via B4 Relay <devnull+kasong.tencent.com@kernel.org>
• STALE89d [RFC PATCH 41/45] btrfs: allocate eb-attached btree pages as movable
  2026-04-30 · Rik van Riel <riel@surriel.com>
• STALE71d REVIEWED: 29 (29M) [PATCH v5 10/14] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-04-29 · Zi Yan <ziy@nvidia.com>
• STALE94d REVIEWED: 19 (19M) [PATCH 7.2 v4 10/12] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-04-24 · Zi Yan <ziy@nvidia.com>
• STALE93d REVIEWED: 19 (19M) [PATCH 7.2 v3 10/12] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-04-18 · Zi Yan <ziy@nvidia.com>
• STALE103d REVIEWED: 4 (4M) [PATCH 7.2 v2 10/12] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-04-13 · Zi Yan <ziy@nvidia.com>
• STALE107d REVIEWED: 4 (4M) [PATCH v1 08/10] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-03-27 · Zi Yan <ziy@nvidia.com>
• STALE126d [RFC PATCH 09/11] fs/btrfs: remove a comment referring to READ_ONLY_THP_FOR_FS
  2026-03-23 · Zi Yan <ziy@nvidia.com>
• STALE104d [PATCH 02/61] btrfs: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE148d [PATCH] block: remove bdev_nonrot()
  2026-02-26 · Damien Le Moal <dlemoal@kernel.org>
• STALE145d [PATCH v2 4/4] folio_batch: Rename PAGEVEC_SIZE to FOLIO_BATCH_SIZE
  2026-02-25 · Tal Zussman <hidden>
• STALE145d [PATCH v2 3/4] folio_batch: Rename pagevec.h to folio_batch.h
  2026-02-25 · Tal Zussman <hidden>
• STALE153d Re: [REGRESSION] kswapd0: page allocation failure (bisected to "slab: add sheaves to most caches")
  2026-02-23 · Chris Bainbridge <hidden>
• STALE188d [PATCH v2 10/31] btrfs: add EXPORT_OP_STABLE_HANDLES flag to export operations
  2026-01-19 · Jeff Layton <jlayton@kernel.org>
• STALE188d [PATCH 09/29] btrfs: add EXPORT_OP_STABLE_HANDLES flag to export operations
  2026-01-15 · Jeff Layton <jlayton@kernel.org>
• STALE200d [PATCH v3 2/3] btrfs: minor improvement on super block writeback
  2026-01-10 · Qu Wenruo <hidden>
• STALE200d REVIEWED: 1 (0M) [PATCH v3 1/3] btrfs: use bdev_rw_virt() to read and scratch the disk super block
  2026-01-10 · Qu Wenruo <hidden>
• STALE145d [PATCH 03/24] btrfs: add setlease file operation
  2026-01-08 · Jeff Layton <jlayton@kernel.org>
• STALE238d 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>
• STALE261d [PATCH v2] vfs: remove the excl argument from the ->create() inode_operation
  2025-11-07 · Jeff Layton <jlayton@kernel.org>
• STALE264d [PATCH] vfs: remove the excl argument from the ->create() inode_operation
  2025-11-05 · Jeff Layton <jlayton@kernel.org>

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.

• STALE200d [PATCH v3 2/3] btrfs: minor improvement on super block writeback
  2026-01-10 · Qu Wenruo <hidden>
• STALE188d [PATCH 09/29] btrfs: add EXPORT_OP_STABLE_HANDLES flag to export operations
  2026-01-15 · Jeff Layton <jlayton@kernel.org>
• STALE188d [PATCH v2 10/31] btrfs: add EXPORT_OP_STABLE_HANDLES flag to export operations
  2026-01-19 · Jeff Layton <jlayton@kernel.org>
• COOLING4d [PATCH RFC 10/32] mm: replace folio_test_workingset with folio_is_workingset
  2026-05-01 · Kairui Song via B4 Relay <devnull+kasong.tencent.com@kernel.org>