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)

• HOTtoday [PATCH v2 0/3] blk-cgroup: store blkcg in bio before blkcg_mutex conversion
  2026-09-13 06:55 · 3 replies in 7d · Yu Kuai <yukuai@kernel.org>
• COOLING5d [PATCH v16 0/9] blk: honor isolcpus configuration
  2026-09-10 16:43 · 2 replies in 7d · Aaron Tomlin <atomlin@atomlin.com>

Active reviewers (last 30 days)

• Tao Cui <hidden>
  2 attestations (2 Reviewed-by) · last on 2026-09-13
• Christoph Hellwig <hch@lst.de>
  2 attestations (2 Reviewed-by) · last on 2026-09-13
• Aaron Tomlin <atomlin@atomlin.com>
  2 attestations (2 Co-developed-by) · last on 2026-09-10
• Nilay Shroff <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-09-13
• Hannes Reinecke <hare@suse.de>
  1 attestation (1 Reviewed-by) · last on 2026-09-10

Recent patches

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

• HOTtoday [PATCH v2 3/3] blk-cgroup: move async bio punt state to blkcg
  2026-09-13 · Yu Kuai <yukuai@kernel.org>
• HOTtoday REVIEWED: 1 (0M) [PATCH v2 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-09-13 · Yu Kuai <yukuai@kernel.org>
• HOTtoday REVIEWED: 5 (4M) [PATCH v2 1/3] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-09-13 · Yu Kuai <yukuai@kernel.org>
• COOLING5d REVIEWED: 2 (2M) [PATCH v16 7/9] blk-mq: prevent offlining hk CPUs with associated online isolated CPUs
  2026-09-10 · Aaron Tomlin <atomlin@atomlin.com>
• COOLING5d [PATCH v16 6/9] blk-mq: use hk cpus only when isolcpus=managed_irq_strict is enabled
  2026-09-10 · Aaron Tomlin <atomlin@atomlin.com>
• WARM2d [PATCH 03/13] ARM: remove riscpc
  2026-09-08 · Arnd Bergmann <arnd@kernel.org>
• HOTtoday [v2 for-next 3/3] Documentation: block: document error injection delays
  2026-08-30 · Md Haris Iqbal <hidden>
• HOTtoday [v2 for-next 2/3] block: allow error injection rules to delay bios
  2026-08-30 · Md Haris Iqbal <hidden>
• HOTtoday [v2 for-next 1/3] block: reject unknown status tags in error injection rules
  2026-08-30 · Md Haris Iqbal <hidden>
• COLD19d [RFC for-next 2/3] block: allow error injection rules to delay bios
  2026-08-27 · Md Haris Iqbal <hidden>
• COLD19d [RFC for-next 3/3] Documentation: block: document error injection delays
  2026-08-27 · Md Haris Iqbal <hidden>
• COLD19d [RFC for-next 1/3] block: reject unknown status tags in error injection rules
  2026-08-27 · Md Haris Iqbal <hidden>
• WARM2d [PATCH 3/3] blk-cgroup: move async bio punt state to blkcg
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• WARM2d REVIEWED: 1 (0M) [PATCH 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• WARM2d REVIEWED: 4 (4M) [PATCH 1/3] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• COLD22d [PATCH v2] docs: block: fix dead http link in blk-mq.rst
  2026-08-19 · Jenson Johnathon Reggentin <hidden>
• COLD22d [PATCH] docs: block: fix dead http link in blk-mq.rst
  2026-08-19 · Jenson Johnathon Reggentin <hidden>
• COLD27d [RFC PATCH v3 3/3] blk-cgroup: move async bio punt state to blkcg
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD27d [RFC PATCH v3 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD27d [RFC PATCH v3 1/3] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD30d [PATCH] Documentation: block: fix the sector 0 error injection example
  2026-08-15 · Md Haris Iqbal <hidden>
• COLD33d [RFC PATCH v2 4/4] blk-cgroup: move async bio punt state to blkcg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD33d [RFC PATCH v2 3/4] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD33d [RFC PATCH v2 2/4] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD33d [RFC PATCH v2 1/4] blk-cgroup: wait for old blkgs to leave queue before disk rebind
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD40d REVIEWED: 4 (4M) [PATCH 1/1] block: rename bi_bvec_done
  2026-08-06 · Pavel Begunkov <asml.silence@gmail.com>
• COLD41d [RFC PATCH v1 3/3] blk-cgroup: move async bio punt state to blkcg
  2026-08-04 · Yu Kuai <yukuai@kernel.org>
• COLD41d [RFC PATCH v1 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-04 · Yu Kuai <yukuai@kernel.org>
• COLD41d [RFC PATCH v1 1/3] blk-cgroup: add helpers for bio cgroup state
  2026-08-04 · Yu Kuai <yukuai@kernel.org>
• COLD57d [PATCH 6/6] blk-crypto: Update docs for blk-crypto-fallback motivation
  2026-07-18 · Eric Biggers <ebiggers@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.

• STALE100d REVIEWED: 1 (1M) [PATCH 1/4] block: add a macro to initialize the status table
  2026-06-05 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE100d REVIEWED: 1 (1M) [PATCH 2/4] block: add a "tag" for block status codes
  2026-06-05 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE100d REVIEWED: 1 (1M) [PATCH 3/4] block: add a str_to_blk_op helper
  2026-06-05 · Christoph Hellwig <hch@lst.de> · 1 Reviewed-by
• STALE99d REVIEWED: 9 (9M) [PATCH 1/4] block: add a macro to initialize the status table
  2026-06-08 · Christoph Hellwig <hch@lst.de> · 3 Reviewed-by
• STALE99d REVIEWED: 9 (9M) [PATCH 2/4] block: add a "tag" for block status codes
  2026-06-08 · Christoph Hellwig <hch@lst.de> · 3 Reviewed-by
• STALE99d REVIEWED: 9 (9M) [PATCH 3/4] block: add a str_to_blk_op helper
  2026-06-08 · Christoph Hellwig <hch@lst.de> · 3 Reviewed-by
• STALE99d REVIEWED: 8 (8M) [PATCH 4/4] block: add configurable error injection
  2026-06-08 · Christoph Hellwig <hch@lst.de> · 2 Reviewed-by
• STALE97d REVIEWED: 13 (13M) [PATCH 1/4] block: add a macro to initialize the status table
  2026-06-10 · Christoph Hellwig <hch@lst.de> · 4 Reviewed-by
• STALE97d REVIEWED: 9 (9M) [PATCH 2/4] block: add a "tag" for block status codes
  2026-06-10 · Christoph Hellwig <hch@lst.de> · 3 Reviewed-by
• STALE97d REVIEWED: 9 (9M) [PATCH 3/4] block: add a str_to_blk_op helper
  2026-06-10 · Christoph Hellwig <hch@lst.de> · 3 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.

• STALE103d [PATCH 1/9] block: remove ALLOW_ERROR_INJECTION for should_fail_bio
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 2/9] block: consolidate the calls to should_fail_bio
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 3/9] block: refactor should_fail_bio and should_fail_request
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 4/9] block: move the FAIL_MAKE_REQUEST symbol from lib/ to block/
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 5/9] block: add a macro to initialize the status table
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 6/9] block: add a "tag" for block status codes
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 7/9] block: add a str_to_blk_op helper
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• STALE103d [PATCH 9/9] block: move the fail request code
  2026-06-02 · Christoph Hellwig <hch@lst.de>
• DORMANTno replies Re: configurable block error injection v4
  2026-06-10 · Christoph Hellwig <hch@lst.de>
• STALE90d [PATCH 3/3] mm/swap: route slot free notifications through swap_ops
  2026-06-14 · Jianyue Wu <hidden>