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 v6 0/6] sched: Add support for long task name
  2026-09-10 16:49 · 1 reply in 7d · André Almeida <andrealmeid@igalia.com>
• HOTtoday [PATCH v2 00/26] mm/fbatch: drain lru_add_drain() and _all()
  2026-09-09 10:25 · 1 reply in 7d · Hugh Dickins <hughd@google.com>
• COOLING4d [PATCH 0/2] zsmallc: remove old object read API
  2026-09-07 10:58 · 1 reply in 7d · Sergey Senozhatsky <senozhatsky@chromium.org>

Active reviewers (last 30 days)

• Tao Cui <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-08-23
• Christoph Hellwig <hch@lst.de>
  1 attestation (1 Reviewed-by) · last on 2026-08-23

Recent patches

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

• WARM1d [PATCH v6 4/6] sched: Extend task command name with TASK_COMM_EXT_LEN
  2026-09-10 · André Almeida <andrealmeid@igalia.com>
• HOTtoday [PATCH v2 21/26] block/fbatch: no lru_add_drain_all() in invalidate_bdev()
  2026-09-09 · Hugh Dickins <hughd@google.com>
• COOLING4d [PATCH 1/2] zram: convert to SG-list zsmalloc object read API
  2026-09-07 · Sergey Senozhatsky <senozhatsky@chromium.org>
• WARM3d [PATCH 21/25] block/fbatch: no lru_add_drain_all() in invalidate_bdev()
  2026-08-24 · Hugh Dickins <hughd@google.com>
• COOLING4d [PATCH 3/3] blk-cgroup: move async bio punt state to blkcg
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• COOLING4d REVIEWED: 1 (0M) [PATCH 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• COOLING4d REVIEWED: 4 (4M) [PATCH 1/3] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-08-23 · Yu Kuai <yukuai@kernel.org>
• COOLING9d [PATCH 1/7] filemap: Export filemap_invalidate_pages() to modules
  2026-08-20 · "Matthew Wilcox (Oracle)" <willy@infradead.org>
• COLD22d [RFC PATCH v3 3/3] blk-cgroup: move async bio punt state to blkcg
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD22d [RFC PATCH v3 2/3] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD22d [RFC PATCH v3 1/3] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-08-18 · Yu Kuai <yukuai@kernel.org>
• COLD25d [PATCH v2] blk-crypto-fallback: Fix deadlock when encrypting large bio in dm layer
  2026-08-11 · Eric Biggers <ebiggers@kernel.org>
• COLD28d [RFC PATCH v2 4/4] blk-cgroup: move async bio punt state to blkcg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD28d [RFC PATCH v2 3/4] blk-cgroup: store blkcg in bio instead of blkg
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD28d [RFC PATCH v2 2/4] blk-cgroup: use a request_queue rhashtable for blkg lookup
  2026-08-11 · Yu Kuai <yukuai@kernel.org>
• COLD28d [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>
• WARM2d [PATCH 3/3] blk-crypto-fallback: Fix deadlock when encrypting large bio in dm layer
  2026-08-06 · Eric Biggers <ebiggers@kernel.org>
• WARM2d [PATCH 2/3] mm: support fallible mempool_alloc_bulk()
  2026-08-06 · Eric Biggers <ebiggers@kernel.org>
• COLD28d Re: [RFC PATCH] zram: avoid preemption with CPU-based compression backends
  2026-08-05 · Sergey Senozhatsky <senozhatsky@chromium.org>
• COLD28d Re: [RFC PATCH] zram: avoid preemption with CPU-based compression backends
  2026-08-05 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• COLD28d Re: [RFC PATCH] zram: avoid preemption with CPU-based compression backends
  2026-08-05 · Barry Song <baohua@kernel.org>
• COLD28d [RFC PATCH] zram: avoid preemption with CPU-based compression backends
  2026-08-05 · "Barry Song (Xiaomi)" <baohua@kernel.org>
• COOLING12d REVIEWED: 4 (4M) [PATCH v7 5/5] block: enable RWF_DONTCACHE for block devices
  2026-07-30 · Tal Zussman <hidden>
• COOLING12d [PATCH v7 2/5] block: add task-context bio completion infrastructure
  2026-07-30 · Tal Zussman <hidden>
• COOLING12d [PATCH v7 1/5] block: introduce bio_in_atomic()
  2026-07-30 · Tal Zussman <hidden>
• COLD44d IN LINUX-NEXT Re: [PATCH v6 1/4] block: add task-context bio completion infrastructure
  2026-07-29 · Tal Zussman <hidden>
• DORMANTno replies IN MM [PATCH v2 2/2] zram: validate deflate params
  2026-07-29 · Sergey Senozhatsky <senozhatsky@chromium.org>
• COLD44d IN MM [PATCH v2 1/2] zram: set default primary compressor in zram_destroy_comps()
  2026-07-29 · Sergey Senozhatsky <senozhatsky@chromium.org>
• DORMANTno replies [PATCH 2/2] zram: validate deflate params
  2026-07-29 · Sergey Senozhatsky <senozhatsky@chromium.org>
• COLD44d [PATCH 1/2] zram: set default primary compressor in zram_destroy_comps()
  2026-07-29 · Sergey Senozhatsky <senozhatsky@chromium.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.

• STALE146d REVIEWED: 1 (0M) [RFC PATCH] zram: support asynchronous GC for lazy slot freeing
  2026-04-12 · "Barry Song (Xiaomi)" <baohua@kernel.org> · 1 Tested-by
• STALE66d REVIEWED: 12 (12M) [PATCH v2 03/83] block: rnull: adopt new formatting guidelines
  2026-06-09 · Andreas Hindborg <a.hindborg@kernel.org> · 1 Reviewed-by
• STALE66d REVIEWED: 12 (12M) [PATCH v2 15/83] block: rust: add `TagSet` flags
  2026-06-09 · Andreas Hindborg <a.hindborg@kernel.org> · 1 Reviewed-by
• COOLING12d REVIEWED: 4 (4M) [PATCH v7 5/5] block: enable RWF_DONTCACHE for block devices
  2026-07-30 · Tal Zussman <hidden> · 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.

• STALE100d [PATCH 54/79] block: rnull: add REQ_OP_FLUSH support
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 60/79] block: fix arg type in `blk_mq_update_nr_hw_queues`
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 31/79] block: rnull: add volatile cache emulation
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 43/79] block: rnull: add queue depth config option
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 67/79] block: rust: remove the `is_poll` parameter from `queue_rq`
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 29/79] block: rust: add `TagSet` private data support
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 48/79] block: rnull: add zoned storage support
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 27/79] block: rnull: add badblocks_once support
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 73/79] block: rnull: add fault injection support
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>
• STALE100d [PATCH 51/79] block: rust: add polled completion support
  2026-02-15 · Andreas Hindborg <a.hindborg@kernel.org>