ext4 file system · Maintained

Maintainers

• M "Theodore Ts'o" <tytso@mit.edu>
• R Andreas Dilger <adilger.kernel@dilger.ca>
• R Baokun Li <libaokun@linux.alibaba.com>
• R Jan Kara <jack@suse.cz>
• R Ojaswin Mujoo <ojaswin@linux.ibm.com>
• R Ritesh Harjani <ritesh.list@gmail.com>
• R Zhang Yi <yi.zhang@huawei.com>

Paths

• F Documentation/filesystems/ext4/
• F fs/ext4/
• F include/trace/events/ext4.h
• F include/uapi/linux/ext4.h

Last 30 days

Most active threads (last 7 days)

• WARM1d [PATCH v13 00/23] fs-verity support for XFS with post EOF merkle tree
  2026-07-21 18:44 · 3 replies in 7d · Andrey Albershteyn <aalbersh@kernel.org>
• HOTtoday decouple simple direct I/O reads from iomap_dio_rw
  2026-07-22 12:49 · 1 reply in 7d · Christoph Hellwig <hch@lst.de>
• WARM1d [PATCH v12 00/21] fs-verity support for XFS with post EOF merkle tree
  2026-07-20 09:05 · 2 replies in 7d · Andrey Albershteyn <aalbersh@kernel.org>

Active reviewers (last 30 days)

• Darrick J. Wong <djwong@kernel.org>
  6 attestations (6 Reviewed-by) · last on 2026-07-21
• Eric Biggers <ebiggers@kernel.org>
  6 attestations (6 Acked-by) · last on 2026-07-21
• Christoph Hellwig <hch@lst.de>
  3 attestations (3 Reviewed-by) · last on 2026-07-21
• David Sterba <dsterba@suse.com>
  1 attestation (1 Acked-by) · last on 2026-07-21

Recent patches

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

• HOTtoday [PATCH 2/3] iomap: decouple simple direct I/O reads from iomap_dio_rw
  2026-07-22 · Christoph Hellwig <hch@lst.de>
• WARM1d [PATCH v13 08/23] fsverity: hoist statx reporting of fs-verity flag
  2026-07-21 · Andrey Albershteyn <aalbersh@kernel.org>
• WARM1d REVIEWED: 9 (9M) [PATCH v13 04/23] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-07-21 · Andrey Albershteyn <aalbersh@kernel.org>
• WARM1d REVIEWED: 9 (9M) [PATCH v13 03/23] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-07-21 · Andrey Albershteyn <aalbersh@kernel.org>
• WARM1d REVIEWED: 9 (9M) [PATCH v12 04/21] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-07-20 · Andrey Albershteyn <aalbersh@kernel.org>
• WARM1d REVIEWED: 5 (5M) [PATCH v12 03/21] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-07-20 · Andrey Albershteyn <aalbersh@kernel.org>
• WARM2d REVIEWED: 9 (9M) [PATCH v11 04/20] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-07-10 · Andrey Albershteyn <aalbersh@kernel.org>
• WARM2d REVIEWED: 5 (5M) [PATCH v11 03/20] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-07-10 · Andrey Albershteyn <aalbersh@kernel.org>
• COOLING14d Re: [PATCH v6 3/3] iomap: add simple dio path for small direct I/O
  2026-07-08 · Joanne Koong <joannelkoong@gmail.com>
• COOLING14d Re: [PATCH v6 3/3] iomap: add simple dio path for small direct I/O
  2026-07-06 · Joanne Koong <joannelkoong@gmail.com>
• COOLING14d Re: [PATCH v6 3/3] iomap: add simple dio path for small direct I/O
  2026-07-06 · changfengnan <hidden>
• WARM2d [PATCH v2 17/18] iomap: pass iomap_next_fn directly instead of struct iomap_ops
  2026-07-01 · Joanne Koong <joannelkoong@gmail.com>
• WARM2d [PATCH v2 06/18] ext4: convert iomap ops to ->iomap_next()
  2026-07-01 · Joanne Koong <joannelkoong@gmail.com>
• COLD28d REVIEWED: 9 (9M) [PATCH RFC v2 11/18] ext4: open via dedicated fs bdev helpers
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COLD28d [PATCH RFC v2 05/18] ext4: use anonymous devices for KUnit test superblocks
  2026-06-16 · Christian Brauner <brauner@kernel.org>
• COLD35d [PATCH RFC 6/8] ext4: open via dedicated fs bdev helpers
  2026-06-02 · Christian Brauner <brauner@kernel.org>
• COLD28d REVIEWED: 9 (9M) [PATCH v10 06/22] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-05-20 · Andrey Albershteyn <aalbersh@kernel.org>
• COLD28d REVIEWED: 5 (5M) [PATCH v10 05/22] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-05-20 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE65d [PATCH 03/12] swap,fs: move swapfile operations to struct file_operations
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• STALE65d [PATCH 02/12] swap: move boilerplate code into the core swap code
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• COLD28d REVIEWED: 9 (9M) [PATCH v9 06/22] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-04-28 · Andrey Albershteyn <aalbersh@kernel.org>
• COLD28d REVIEWED: 5 (5M) [PATCH v9 05/22] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-04-28 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE89d REVIEWED: 15 (15M) [PATCH v10 08/17] ext4: Report case sensitivity in fileattr_get
  2026-04-23 · Chuck Lever <cel@kernel.org>
• STALE90d REVIEWED: 15 (15M) [PATCH v9 08/17] ext4: Report case sensitivity in fileattr_get
  2026-04-22 · Chuck Lever <cel@kernel.org>
• STALE91d REVIEWED: 9 (9M) [PATCH v8 06/22] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-04-20 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE91d REVIEWED: 5 (5M) [PATCH v8 05/22] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-04-20 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE98d REVIEWED: 9 (9M) [PATCH v7 06/22] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-04-09 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE98d REVIEWED: 5 (5M) [PATCH v7 05/22] fsverity: pass digest size and hash of the all-zeroes block to ->write
  2026-04-09 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE111d REVIEWED: 5 (5M) [PATCH v6 05/22] fsverity: hoist pagecache_read from f2fs/ext4 to fsverity
  2026-03-31 · Andrey Albershteyn <aalbersh@kernel.org>
• STALE111d REVIEWED: 1 (1M) [PATCH v6 04/22] fsverity: pass digest size and hash of the empty block to ->write
  2026-03-31 · Andrey Albershteyn <aalbersh@kernel.org>

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.

• STALE188d REVIEWED: 14 (13M) [PATCH 1/6] uapi: promote EFSCORRUPTED and EUCLEAN to errno.h
  2026-01-13 · "Darrick J. Wong" <djwong@kernel.org> · 3 Reviewed-by
• STALE188d REVIEWED: 13 (13M) [PATCH 6/6] ext4: convert to new fserror helpers
  2026-01-13 · "Darrick J. Wong" <djwong@kernel.org> · 2 Reviewed-by
• STALE128d REVIEWED: 9 (9M) [PATCH v3 09/12] ext4: widen trace event i_ino fields to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org> · 1 Reviewed-by
• COLD28d REVIEWED: 9 (9M) [PATCH RFC v2 11/18] ext4: open via dedicated fs bdev helpers
  2026-06-16 · Christian Brauner <brauner@kernel.org> · 1 Reviewed-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.

• STALE184d [PATCH 08/12] mm: update all remaining mmap_prepare users to use vma_flags_t
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE145d [PATCH 04/61] ext4: update for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE111d [PATCH 2/8] fs: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>