scheduler · Maintained

Maintainers

• M Ingo Molnar <mingo@redhat.com>
• M Peter Zijlstra <peterz@infradead.org>
• M Juri Lelli <juri.lelli@redhat.com>
• M Vincent Guittot <vincent.guittot@linaro.org>
• R Dietmar Eggemann <dietmar.eggemann@arm.com>
• R Steven Rostedt <rostedt@goodmis.org>
• R Ben Segall <bsegall@google.com>
• R Mel Gorman <mgorman@suse.de>
• R Valentin Schneider <vschneid@redhat.com>
• R K Prateek Nayak <kprateek.nayak@amd.com>

Paths

• F include/linux/preempt.h
• F include/linux/sched.h
• F include/linux/wait.h
• F include/uapi/linux/sched.h
• F kernel/fork.c
• F kernel/sched/
• F tools/sched/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v19 00/40] DEPT(DEPendency Tracker)
  2026-07-06 06:21 · 8 replies in 7d · Byungchul Park <byungchul@sk.com>
• WARM1d [PATCH] block: split out a new blk_plug.h helper
  2026-07-06 04:11 · 0 replies in 7d · Christoph Hellwig <hch@lst.de>

Active reviewers (last 30 days)

• Harry Yoo <hidden>
  1 attestation (1 Tested-by) · last on 2026-07-06
• Gwan-gyeong Mun <hidden>
  1 attestation (1 Tested-by) · last on 2026-07-06
• Yunseong Kim <hidden>
  1 attestation (1 Tested-by) · last on 2026-07-06
• Yeoreum Yun <hidden>
  1 attestation (1 Tested-by) · last on 2026-07-06

Recent patches

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

• HOTtoday [PATCH v19 31/40] dept: assign unique dept_key to each distinct wait_for_completion() caller
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday [PATCH v19 23/40] dept: print staged wait's stacktrace on report
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday [PATCH v19 18/40] dept: apply timeout consideration to waitqueue wait
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday [PATCH v19 16/40] dept: apply timeout consideration to wait_for_completion()/complete()
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday [PATCH v19 15/40] dept: track timeout waits separately with a new Kconfig
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday [PATCH v19 12/40] dept: apply sdt_might_sleep_{start,end}() to waitqueue wait
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday [PATCH v19 06/40] dept: distinguish each kernel context from another
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• HOTtoday REVIEWED: 4 (0M) [PATCH v19 01/40] dept: implement DEPT(DEPendency Tracker)
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• WARM1d [PATCH] block: split out a new blk_plug.h helper
  2026-07-06 · Christoph Hellwig <hch@lst.de>
• COLD21d [PATCH 2/2] block: invalidate cached plug timestamp after task switch
  2026-06-16 · Usama Arif <hidden>
• COLD21d [PATCH 1/2] kernel/fork: clear PF_BLOCK_TS in copy_process()
  2026-06-16 · Usama Arif <hidden>
• COLD25d Re: [PATCH v2] block: invalidate cached plug timestamp after task switch
  2026-06-12 · Usama Arif <hidden>
• COLD25d [PATCH v2] block: invalidate cached plug timestamp after task switch
  2026-06-12 · Usama Arif <hidden>
• COLD25d [PATCH] block: invalidate cached plug timestamp after task switch
  2026-06-11 · Usama Arif <hidden>
• COLD20d REVIEWED: 4 (4M) [PATCH v15 4/8] isolation: Introduce io_queue isolcpus type
  2026-05-21 · Aaron Tomlin <atomlin@atomlin.com>
• COLD47d REVIEWED: 4 (4M) [PATCH v14 4/8] isolation: Introduce io_queue isolcpus type
  2026-05-20 · Aaron Tomlin <atomlin@atomlin.com>
• COLD49d REVIEWED: 4 (4M) [PATCH v13 4/8] isolation: Introduce io_queue isolcpus type
  2026-05-13 · Aaron Tomlin <atomlin@atomlin.com>
• COLD49d REVIEWED: 1 (0M) [PATCH] sched: flush plug in schedule_preempt_disabled() to prevent deadlock
  2026-05-12 · Ming Lei <tom.leiming@gmail.com>
• DORMANTno replies Re: [PATCH] sched: disable preemption around blk_flush_plug in sched_submit_work
  2026-05-12 · Ming Lei <tom.leiming@gmail.com>
• COLD56d REVIEWED: 1 (0M) [PATCH] sched: disable preemption around blk_flush_plug in sched_submit_work
  2026-04-23 · Ming Lei <tom.leiming@gmail.com>
• DORMANTno replies Re: [PATCH] block: fix deadlock between blk_mq_freeze_queue and blk_mq_dispatch_list
  2026-04-23 · Michael Wu <hidden>
• STALE63d REVIEWED: 4 (4M) [PATCH v12 09/13] isolation: Introduce io_queue isolcpus type
  2026-04-22 · Aaron Tomlin <atomlin@atomlin.com>
• STALE75d Re: [PATCH] block: fix deadlock between blk_mq_freeze_queue and blk_mq_dispatch_list
  2026-04-20 · Ming Lei <tom.leiming@gmail.com>
• STALE75d REVIEWED: 4 (4M) [PATCH v11 09/13] isolation: Introduce io_queue isolcpus type
  2026-04-16 · Aaron Tomlin <atomlin@atomlin.com>
• STALE82d REVIEWED: 3 (3M) [PATCH v10 09/13] isolation: Introduce io_queue isolcpus type
  2026-04-01 · Aaron Tomlin <atomlin@atomlin.com>
• STALE96d REVIEWED: 3 (3M) [PATCH v9 09/13] isolation: Introduce io_queue isolcpus type
  2026-03-30 · Aaron Tomlin <atomlin@atomlin.com>
• STALE82d [PATCH 16/61] sched: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE160d REVIEWED: 2 (2M) [PATCH 30/33] kthread: Honour kthreads preferred affinity after cpuset changes
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE160d [PATCH 19/33] cpuset: Propagate cpuset isolation update to timers through housekeeping
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE160d REVIEWED: 8 (8M) [PATCH 18/33] cpuset: Propagate cpuset isolation update to workqueue through housekeeping
  2026-01-25 · Frederic Weisbecker <frederic@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.

• COLD56d REVIEWED: 1 (0M) [PATCH] sched: disable preemption around blk_flush_plug in sched_submit_work
  2026-04-23 · Ming Lei <tom.leiming@gmail.com> · 1 Tested-by
• COLD49d REVIEWED: 1 (0M) [PATCH] sched: flush plug in schedule_preempt_disabled() to prevent deadlock
  2026-05-12 · Ming Lei <tom.leiming@gmail.com> · 1 Tested-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.

• STALE188d [PATCH 13/33] sched/isolation: Convert housekeeping cpumasks to rcu pointers
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE188d [PATCH 16/33] sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  2025-12-24 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d [PATCH 16/33] sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE134d [PATCH 19/33] cpuset: Propagate cpuset isolation update to timers through housekeeping
  2026-01-01 · Frederic Weisbecker <frederic@kernel.org>
• STALE160d [PATCH 13/33] sched/isolation: Convert housekeeping cpumasks to rcu pointers
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE160d [PATCH 16/33] sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE160d [PATCH 19/33] cpuset: Propagate cpuset isolation update to timers through housekeeping
  2026-01-25 · Frederic Weisbecker <frederic@kernel.org>
• STALE75d Re: [PATCH] block: fix deadlock between blk_mq_freeze_queue and blk_mq_dispatch_list
  2026-04-20 · Ming Lei <tom.leiming@gmail.com>
• DORMANTno replies Re: [PATCH] block: fix deadlock between blk_mq_freeze_queue and blk_mq_dispatch_list
  2026-04-23 · Michael Wu <hidden>
• DORMANTno replies Re: [PATCH] sched: disable preemption around blk_flush_plug in sched_submit_work
  2026-05-12 · Ming Lei <tom.leiming@gmail.com>