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

Active reviewers (last 30 days)

• Longxing Li <hidden>
  1 attestation (1 Reported-by) · last on 2026-07-09

Recent patches

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

• COOLING6d [PATCH] ext4: fix use-after-free in ext4 delayed I/O completion
  2026-07-09 · Longxing Li <hidden>
• COLD59d [PATCH 03/12] swap,fs: move swapfile operations to struct file_operations
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• COLD59d [PATCH 02/12] swap: move boilerplate code into the core swap code
  2026-05-12 · Christoph Hellwig <hch@lst.de>
• STALE78d [PATCH 4/4] ext4: Defer inode reclaim if it has preallocations
  2026-04-29 · Jan Kara <jack@suse.cz>
• STALE106d [PATCH 40/42] ext4: Track metadata bhs in fs-private inode part
  2026-03-26 · Jan Kara <jack@suse.cz>
• STALE106d REVIEWED: 4 (4M) [PATCH 32/42] fs: Switch inode_has_buffers() to take mapping_metadata_bhs
  2026-03-26 · Jan Kara <jack@suse.cz>
• STALE106d REVIEWED: 6 (6M) [PATCH 19/42] ext4: Sync and invalidate metadata buffers from ext4_evict_inode()
  2026-03-26 · Jan Kara <jack@suse.cz>
• STALE106d REVIEWED: 6 (6M) [PATCH 01/42] ext4: Use inode_has_buffers()
  2026-03-26 · Jan Kara <jack@suse.cz>
• STALE113d [PATCH 38/41] ext4: Track metadata bhs in fs-private inode part
  2026-03-20 · Jan Kara <jack@suse.cz>
• STALE113d [PATCH 30/41] fs: Switch inode_has_buffers() to take mapping_metadata_bhs
  2026-03-20 · Jan Kara <jack@suse.cz>
• STALE113d REVIEWED: 6 (6M) [PATCH 17/41] ext4: Sync and invalidate metadata buffers from ext4_evict_inode()
  2026-03-20 · Jan Kara <jack@suse.cz>
• STALE113d REVIEWED: 6 (6M) [PATCH 01/41] ext4: Use inode_has_buffers()
  2026-03-20 · Jan Kara <jack@suse.cz>
• STALE111d [PATCH 32/53] ext4: move dcache modifying code out of __ext4_link()
  2026-03-13 · NeilBrown <hidden>
• STALE111d [PATCH 33/53] ext4: use on-stack dentries in ext4_fc_replay_link_internal()
  2026-03-13 · NeilBrown <hidden>
• STALE91d [PATCH 04/61] ext4: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE122d [PATCH v3 12/12] treewide: change inode->i_ino from unsigned long to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE122d REVIEWED: 9 (9M) [PATCH v3 09/12] ext4: widen trace event i_ino fields to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE105d [PATCH 2/8] fs: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE128d [PATCH 29/32] ext4: Track metadata bhs in fs-private inode part
  2026-03-03 · Jan Kara <jack@suse.cz>
• STALE128d [PATCH 22/32] fs: Switch inode_has_buffers() to take mapping_metadata_bhs
  2026-03-03 · Jan Kara <jack@suse.cz>
• STALE128d [PATCH 05/32] ext4: Sync and invalidate metadata buffers from ext4_evict_inode()
  2026-03-03 · Jan Kara <jack@suse.cz>
• STALE128d [PATCH 06/32] ext4: Use inode_has_buffers()
  2026-03-03 · Jan Kara <jack@suse.cz>
• STALE134d [PATCH v2 061/110] ext4: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE134d [PATCH v2 007/110] ext4: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE139d [PATCH 04/61] ext4: update for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE140d [PATCH v1] mm: annotate data race of f_ra.prev_pos
  2026-02-26 · Jiayuan Chen <jiayuan.chen@linux.dev>
• STALE135d [PATCH] block: remove bdev_nonrot()
  2026-02-26 · Damien Le Moal <dlemoal@kernel.org>
• STALE132d [PATCH v2 3/4] folio_batch: Rename pagevec.h to folio_batch.h
  2026-02-25 · Tal Zussman <hidden>
• STALE132d [PATCH v2 2/4] fs: Remove unncessary pagevec.h includes
  2026-02-25 · Tal Zussman <hidden>
• STALE156d [PATCH v2 09/13] mm: update all remaining mmap_prepare users to use vma_flags_t
  2026-01-22 · Lorenzo Stoakes <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.

• STALE122d 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

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.

• STALE198d [PATCH V4 3/8] ext4: specify the free pointer offset for ext4_inode_cache
  2025-12-22 · Harry Yoo <hidden>
• STALE184d [PATCH V6 3/9] ext4: specify the free pointer offset for ext4_inode_cache
  2026-01-13 · Harry Yoo <hidden>
• STALE178d [PATCH 08/12] mm: update all remaining mmap_prepare users to use vma_flags_t
  2026-01-19 · Lorenzo Stoakes <hidden>
• STALE139d [PATCH 04/61] ext4: update for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE128d [PATCH 22/32] fs: Switch inode_has_buffers() to take mapping_metadata_bhs
  2026-03-03 · Jan Kara <jack@suse.cz>
• STALE128d [PATCH 29/32] ext4: Track metadata bhs in fs-private inode part
  2026-03-03 · Jan Kara <jack@suse.cz>
• STALE105d [PATCH 2/8] fs: use rest_of_page() macro where appropriate
  2026-03-04 · Yury Norov <hidden>
• STALE113d [PATCH 38/41] ext4: Track metadata bhs in fs-private inode part
  2026-03-20 · Jan Kara <jack@suse.cz>
• STALE106d [PATCH 40/42] ext4: Track metadata bhs in fs-private inode part
  2026-03-26 · Jan Kara <jack@suse.cz>
• STALE78d [PATCH 4/4] ext4: Defer inode reclaim if it has preallocations
  2026-04-29 · Jan Kara <jack@suse.cz>