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)

• <hidden>
  1 attestation (1 Tested-by) · last on 2026-06-16

Recent patches

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

• COOLING8d [PATCH v2 17/18] iomap: pass iomap_next_fn directly instead of struct iomap_ops
  2026-07-01 · Joanne Koong <joannelkoong@gmail.com>
• COLD20d [PATCH RFC v2 12/18] fs: look up superblocks via the device table in fs_holder_ops
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COLD20d REVIEWED: 1 (0M) [PATCH RFC v2 10/18] btrfs: open via dedicated fs bdev helpers
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COLD26d [PATCH v2 5/5] btrfs: deny freezing devices undergoing a replace
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COLD26d [PATCH v2 4/5] btrfs: deny freezing a device while it is being added
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COLD26d [PATCH v2 3/5] btrfs: deny freezing a device while it is being removed
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COOLING14d [PATCH v4 3/3] btrfs: use IOMAP_DIO_BOUNCE flag instead of falling back to buffered IO
  2026-06-16 · Qu Wenruo <hidden>
• COLD29d [PATCH RFC 6/6] btrfs: deny freezing devices undergoing a replace
  2026-06-15 · Christian Brauner <brauner@kernel.org>
• COLD29d [PATCH RFC 5/6] btrfs: deny freezing a device while it is being added
  2026-06-15 · Christian Brauner <brauner@kernel.org>
• COLD29d [PATCH RFC 4/6] btrfs: deny freezing a device while it is being removed
  2026-06-15 · Christian Brauner <brauner@kernel.org>
• COLD29d [PATCH RFC 1/6] btrfs: destroy the target device when mark_block_group_to_copy() fails
  2026-06-15 · Christian Brauner <brauner@kernel.org>
• COLD28d [PATCH v3 4/4] btrfs: use IOMAP_DIO_BOUNCE flag instead of falling back to buffered IO
  2026-06-12 · Qu Wenruo <hidden>
• COLD27d [PATCH RFC 5/8] btrfs: open via dedicated fs bdev helpers
  2026-06-02 · Christian Brauner <brauner@kernel.org>
• COLD34d REVIEWED: 1 (0M) [PATCH v7 43/43] btrfs: disable send if we have encryption enabled
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 42/43] btrfs: disable encryption on RAID5/6
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 40/43] btrfs: support encryption with log replay
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 39/43] btrfs: set the appropriate free space settings in reconfigure
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 38/43] btrfs: load the inode context before sending writes
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 37/43] btrfs: decrypt file names for send
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 36/43] btrfs: deal with encrypted symlinks in send
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 33/43] btrfs: implement read repair for encryption
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 32/43] btrfs: implement process_bio cb for fscrypt
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 41/43] btrfs: disable auto defrag on encrypted files
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 31/43] btrfs: limit encrypted writes to 256 segments
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 35/43] btrfs: make btrfs_ref_to_path handle encrypted filenames
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 27/43] btrfs: setup fscrypt_extent_info for new extents
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 34/43] btrfs: add test_dummy_encryption support
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 28/43] btrfs: populate ordered_extent with the orig offset
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 26/43] btrfs: implement the fscrypt extent encryption hooks
  2026-05-13 · Daniel Vacek <hidden>
• COLD34d [PATCH v7 30/43] btrfs: add a bio argument to btrfs_csum_one_bio
  2026-05-13 · Daniel Vacek <hidden>

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.

• COLD34d REVIEWED: 1 (0M) [PATCH v7 43/43] btrfs: disable send if we have encryption enabled
  2026-05-13 · Daniel Vacek <hidden> · 1 Reviewed-by
• COLD20d REVIEWED: 1 (0M) [PATCH RFC v2 10/18] btrfs: open via dedicated fs bdev helpers
  2026-06-16 · Christian Brauner <brauner@kernel.org> · 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.

• STALE205d [RFC v2 05/17] bio: use bio_set_status for BLK_STS_* status codes
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE205d [RFC v2 11/17] bio: bio_set_status from non-zero errno
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE205d [RFC v2 17/17] bio: add bio_endio_status
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE82d [PATCH v6 12/43] btrfs: add new FEATURE_INCOMPAT_ENCRYPT flag
  2026-02-06 · Daniel Vacek <hidden>
• STALE82d [PATCH v6 15/43] btrfs: implement fscrypt ioctls
  2026-02-06 · Daniel Vacek <hidden>
• STALE82d [PATCH v6 19/43] btrfs: add fscrypt_info and encryption_type to extent_map
  2026-02-06 · Daniel Vacek <hidden>
• STALE82d [PATCH v6 17/43] btrfs: add get_devices hook for fscrypt
  2026-02-06 · Daniel Vacek <hidden>
• STALE82d [PATCH v6 18/43] btrfs: set file extent encryption excplicitly
  2026-02-06 · Daniel Vacek <hidden>
• STALE82d [PATCH v6 22/43] btrfs: populate the ordered_extent with the fscrypt context
  2026-02-06 · Daniel Vacek <hidden>
• STALE82d [PATCH v6 23/43] btrfs: keep track of fscrypt info and orig_start for dio reads
  2026-02-06 · Daniel Vacek <hidden>