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)

• HOTtoday [PATCH v4 0/2] tracing: Move non-trace_printk prototypes into trace_controls.h
  2026-06-25 10:43 · 1 reply in 7d · Steven Rostedt <rostedt@kernel.org>
• WARM3d [PATCH 0/2] tracing: Move trace_printk.h out of kernel.h
  2026-06-21 09:37 · 1 reply in 7d · Steven Rostedt <rostedt@kernel.org>

Active reviewers (last 30 days)

• Yury Norov <yury.norov@gmail.com>
  1 attestation (1 Suggested-by) · last on 2026-06-25
• Masami Hiramatsu (Google) <mhiramat@kernel.org>
  1 attestation (1 Acked-by) · last on 2026-06-25

Recent patches

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

• HOTtoday REVIEWED: 9 (9M) [PATCH v4 2/2] tracing: Remove trace_printk.h from kernel.h
  2026-06-25 · Steven Rostedt <rostedt@kernel.org>
• WARM3d [PATCH 2/2] tracing: Add CONFIG_TRACE_PRINTK_DEBUGGING to clean up kernel.h
  2026-06-21 · Steven Rostedt <rostedt@kernel.org>
• STALE114d [PATCH 07/12] mm: add rest_of_page() macro
  2026-02-19 · Yury Norov <hidden>
• DORMANTno replies REVIEWED: 11 (10M) [PATCH v3 13/14] mm: Remove callers of pfn_t functionality
  2025-06-19 · Alistair Popple <apopple@nvidia.com>
• STALE371d REVIEWED: 10 (10M) [PATCH v2 13/14] mm: Remove callers of pfn_t functionality
  2025-06-16 · Alistair Popple <apopple@nvidia.com>
• STALE377d REVIEWED: 4 (4M) [PATCH 11/12] mm: Remove callers of pfn_t functionality
  2025-05-29 · Alistair Popple <apopple@nvidia.com>
• STALE455d [PATCH v9 07/20] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2025-02-28 · Alistair Popple <apopple@nvidia.com>
• STALE455d REVIEWED: 1 (0M) [PATCH v9 05/20] fs/dax: Create a common implementation to break DAX layouts
  2025-02-28 · Alistair Popple <apopple@nvidia.com>
• STALE455d REVIEWED: 20 (19M) [PATCH v9 04/20] fs/dax: Refactor wait for dax idle page
  2025-02-28 · Alistair Popple <apopple@nvidia.com>
• STALE485d [PATCH v8 07/20] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2025-02-18 · Alistair Popple <apopple@nvidia.com>
• STALE485d REVIEWED: 1 (0M) [PATCH v8 05/20] fs/dax: Create a common implementation to break DAX layouts
  2025-02-18 · Alistair Popple <apopple@nvidia.com>
• STALE485d REVIEWED: 20 (19M) [PATCH v8 04/20] fs/dax: Refactor wait for dax idle page
  2025-02-18 · Alistair Popple <apopple@nvidia.com>
• STALE492d [PATCH v7 07/20] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2025-02-04 · Alistair Popple <apopple@nvidia.com>
• STALE492d REVIEWED: 1 (0M) [PATCH v7 05/20] fs/dax: Create a common implementation to break DAX layouts
  2025-02-04 · Alistair Popple <apopple@nvidia.com>
• STALE492d REVIEWED: 20 (19M) [PATCH v7 04/20] fs/dax: Refactor wait for dax idle page
  2025-02-04 · Alistair Popple <apopple@nvidia.com>
• STALE500d [PATCH v6 07/26] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2025-01-10 · Alistair Popple <apopple@nvidia.com>
• STALE500d [PATCH v6 05/26] fs/dax: Create a common implementation to break DAX layouts
  2025-01-10 · Alistair Popple <apopple@nvidia.com>
• STALE500d REVIEWED: 20 (19M) [PATCH v6 04/26] fs/dax: Refactor wait for dax idle page
  2025-01-10 · Alistair Popple <apopple@nvidia.com>
• STALE531d [PATCH v5 07/25] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2025-01-07 · Alistair Popple <apopple@nvidia.com>
• STALE531d [PATCH v5 05/25] fs/dax: Create a common implementation to break DAX layouts
  2025-01-07 · Alistair Popple <apopple@nvidia.com>
• STALE531d REVIEWED: 20 (19M) [PATCH v5 04/25] fs/dax: Refactor wait for dax idle page
  2025-01-07 · Alistair Popple <apopple@nvidia.com>
• STALE534d [PATCH v4 07/25] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2024-12-17 · Alistair Popple <apopple@nvidia.com>
• STALE534d [PATCH v4 05/25] fs/dax: Create a common implementation to break DAX layouts
  2024-12-17 · Alistair Popple <apopple@nvidia.com>
• STALE534d REVIEWED: 20 (19M) [PATCH v4 04/25] fs/dax: Refactor wait for dax idle page
  2024-12-17 · Alistair Popple <apopple@nvidia.com>
• STALE249d LANDED: 14 (14M) [PATCH v4 16/19] ext4: switch to using the crc32c library
  2024-12-02 · Eric Biggers <ebiggers@kernel.org>
• STALE555d [PATCH v3 07/25] fs/dax: Ensure all pages are idle prior to filesystem unmount
  2024-11-22 · Alistair Popple <apopple@nvidia.com>
• STALE555d [PATCH v3 05/25] fs/dax: Create a common implementation to break DAX layouts
  2024-11-22 · Alistair Popple <apopple@nvidia.com>
• STALE555d REVIEWED: 20 (19M) [PATCH v3 04/25] fs/dax: Refactor wait for dax idle page
  2024-11-22 · Alistair Popple <apopple@nvidia.com>
• STALE597d REVIEWED: 7 (7M) [PATCH v3 15/18] ext4: switch to using the crc32c library
  2024-11-03 · Eric Biggers <ebiggers@kernel.org>
• STALE597d REVIEWED: 7 (7M) [PATCH v2 15/18] ext4: switch to using the crc32c library
  2024-10-25 · Eric Biggers <ebiggers@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.

• STALE114d [PATCH 07/12] mm: add rest_of_page() macro
  2026-02-19 · Yury Norov <hidden>