block layer · Maintained

Maintainers

• M Jens Axboe <axboe@kernel.dk>

Paths

• F Documentation/ABI/stable/sysfs-block
• F Documentation/block/
• F block/
• F drivers/block/
• F include/linux/bio.h
• F include/linux/blk*
• F include/uapi/linux/blk*
• F include/uapi/linux/ioprio.h
• F kernel/trace/blktrace.c
• F lib/sbitmap.c

Last 30 days

Most active threads (last 7 days)

• WARM1d [PATCH 00/31] block/swim: Fixes and improvements
  2026-07-16 10:22 · 31 replies in 7d · Finn Thain <fthain@linux-m68k.org>
• WARM1d add a ZONE_RESET_ALL uring cmd v2
  2026-07-16 09:18 · 6 replies in 7d · Christoph Hellwig <hch@lst.de>
• DORMANTno replies REVIEWED: 1 (0M) [PATCH] block: partitions: of: Fix NULL dereference on partition without reg
  2026-07-17 14:26 · 0 replies in 7d · Loic Poulain <loic.poulain@oss.qualcomm.com>
• DORMANTno replies [PATCH] blk-wbt: Always change enable_state to MANUAL when setting latency
  2026-07-17 12:50 · 0 replies in 7d · Tang Yizhou <hidden>
• DORMANTno replies [PATCH] blk-cgroup: remove unused blk_queue_for_each_rl stub
  2026-07-17 10:21 · 0 replies in 7d · Tao Cui <hidden>
• WARM1d bio bounce buffering fixes v3
  2026-07-16 09:13 · 2 replies in 7d · Christoph Hellwig <hch@lst.de>
• DORMANTno replies [PATCH] nbd: fix I/O hang on dead socket and rate-limit console error
  2026-07-17 08:58 · 0 replies in 7d · "syzbot" <syzbot@kernel.org>
• WARM2d [PATCH V5 0/9] null_blk: fix init/exit races and memleaks
  2026-07-14 04:26 · 9 replies in 7d · Zizhi Wo <hidden>
• DORMANTno replies [PATCH v2] blk-iolatency: use guard(spinlock_irqsave)() in iolatency_clear_scaling()
  2026-07-17 07:34 · 0 replies in 7d · Tao Cui <hidden>
• HOTtoday [PATCH] blk-throttle: remove dead field last_check_time from throtl_grp
  2026-07-17 05:49 · 0 replies in 7d · Tao Cui <hidden>

Active reviewers (last 30 days)

• Christoph Hellwig <hch@lst.de>
  23 attestations (20 Reviewed-by, 3 Suggested-by) · last on 2026-07-13
• Bart Van Assche <bvanassche@acm.org>
  22 attestations (11 Reviewed-by, 11 Suggested-by) · last on 2026-07-14
• Nilay Shroff <hidden>
  15 attestations (11 Reviewed-by, 4 Suggested-by) · last on 2026-07-16
• Damien Le Moal <dlemoal@kernel.org>
  15 attestations (1 Reported-by, 14 Reviewed-by) · last on 2026-07-14
• Tang Yizhou <hidden>
  8 attestations (8 Reviewed-by) · last on 2026-06-25
• Neptune <hidden>
  5 attestations (5 Reported-by) · last on 2026-07-15
• Andreas Hindborg <a.hindborg@kernel.org>
  5 attestations (5 Reviewed-by) · last on 2026-07-13
• Bartosz Golaszewski <hidden>
  4 attestations (4 Reviewed-by) · last on 2026-07-17
• Danilo Krummrich <dakr@kernel.org>
  3 attestations (3 Acked-by) · last on 2026-07-13
• Loic Poulain <loic.poulain@oss.qualcomm.com>
  3 attestations (3 Co-developed-by) · last on 2026-07-03

Recent patches

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

• DORMANTno replies REVIEWED: 1 (0M) [PATCH] block: partitions: of: Fix NULL dereference on partition without reg
  2026-07-17 · Loic Poulain <loic.poulain@oss.qualcomm.com>
• DORMANTno replies [PATCH] blk-wbt: Always change enable_state to MANUAL when setting latency
  2026-07-17 · Tang Yizhou <hidden>
• DORMANTno replies [PATCH] blk-cgroup: remove unused blk_queue_for_each_rl stub
  2026-07-17 · Tao Cui <hidden>
• DORMANTno replies [PATCH] nbd: fix I/O hang on dead socket and rate-limit console error
  2026-07-17 · "syzbot" <syzbot@kernel.org>
• DORMANTno replies [PATCH v2] blk-iolatency: use guard(spinlock_irqsave)() in iolatency_clear_scaling()
  2026-07-17 · Tao Cui <hidden>
• HOTtoday [PATCH] blk-throttle: remove dead field last_check_time from throtl_grp
  2026-07-17 · Tao Cui <hidden>
• HOTtoday [PATCH] blk-iolatency: use spin_lock_irqsave() in iolatency_clear_scaling()
  2026-07-17 · Tao Cui <hidden>
• DORMANTno replies [PATCH 31/31] swim: Unexport global symbols
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 30/31] swim: Define symbols for constants
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 29/31] swim: Define macros for constants
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 28/31] swim: Clean up whitespace
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 27/31] swim: Remove unused macro definitions
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 26/31] swim: Add some helpful references
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 25/31] swim: Move swd initialization
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 24/31] swim: Remove pointless specifiers
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 23/31] swim: Don't needlessly re-read sectors
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 22/31] swim: Remove pointless mode0 register write
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 21/31] swim: Revisit delays
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 20/31] swim: Check drive ready bit
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 19/31] swim: Deduplicate polling loops
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 18/31] swim: Remove redundant RELAX actions
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 17/31] swim: Convert to blocking queue
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 16/31] swim: Fix buffer overflow
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 15/31] swim: Don't use the mark register to read data
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 14/31] swim: Check error register during sector read
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 13/31] swim: Check for CRC errors
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 12/31] swim: Simplify return value initialization
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 11/31] swim: Handle FIFO timeout error
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 10/31] swim: Add track zero recalibration delay
  2026-07-16 · Finn Thain <fthain@linux-m68k.org>
• WARM1d [PATCH 09/31] swim: Recalibrate when drive is probed
  2026-07-16 · Finn Thain <fthain@linux-m68k.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.

• STALE190d REVIEWED: 4 (4M) [PATCH 4/9] blk-crypto: submit the encrypted bio in blk_crypto_fallback_bio_prep
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE190d REVIEWED: 4 (4M) [PATCH 5/9] blk-crypto: optimize bio splitting in blk_crypto_fallback_encrypt_bio
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE190d REVIEWED: 4 (4M) [PATCH 6/9] blk-crypto: use on-stack skcipher requests for fallback en/decryption
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE190d REVIEWED: 4 (4M) [PATCH 8/9] blk-crypto: optimize data unit alignment checking
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE190d REVIEWED: 4 (4M) [PATCH 9/9] blk-crypto: handle the fallback above the block layer
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE186d REVIEWED: 8 (7M) [PATCH 1/3] block: add a bio_reuse helper
  2026-01-06 · Christoph Hellwig <hch@lst.de> · 2 Reviewed-by
• STALE191d REVIEWED: 1 (0M) [PATCH AUTOSEL 6.18-5.10] block,bfq: fix aux stat accumulation destination
  2026-01-07 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by
• STALE186d REVIEWED: 1 (0M) [PATCH v4 10/19] ublk: support UBLK_F_INTEGRITY
  2026-01-08 · Caleb Sander Mateos <hidden> · 1 Reviewed-by
• STALE186d REVIEWED: 1 (0M) [PATCH v4 05/19] ublk: split out ublk_copy_user_bvec() helper
  2026-01-08 · Caleb Sander Mateos <hidden> · 1 Reviewed-by
• STALE187d REVIEWED: 4 (4M) [PATCH 4/9] blk-crypto: submit the encrypted bio in blk_crypto_fallback_bio_prep
  2026-01-09 · Christoph Hellwig <hch@lst.de> · 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.

• STALE209d [PATCH 1/2] block/blk-mq: fix RT kernel regression with queue_lock in hot path
  2025-12-20 · Ionut Nechita (WindRiver) <hidden>
• DORMANTno replies [PATCH RESEND] block: Replace deprecated strcpy in devt_from_devname
  2025-12-20 · Thorsten Blum <thorsten.blum@linux.dev>
• DORMANTno replies [PATCH] partitions: mac: fix exposing free space as partitions
  2025-12-20 · René Rebe <hidden>
• STALE208d [RFC v2 04/17] bio: add bio_set_status
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE208d [RFC v2 05/17] bio: use bio_set_status for BLK_STS_* status codes
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE208d [RFC v2 06/17] bio: do not check bio->bi_status before assigning to it
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE208d [RFC v2 08/17] block: fix blk_status_to_{errno,str} inconsistency
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE208d [RFC v2 09/17] block: turn blk_errors array into a macro
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE208d [RFC v2 11/17] bio: bio_set_status from non-zero errno
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>
• STALE208d [RFC v2 10/17] block: optimize blk_status <=> errno conversion
  2025-12-21 · Andreas Gruenbacher <agruenba@redhat.com>