[GIT PULL] workqueue changes for v6.19

From: Tejun Heo

Date: Mon Dec 01 2025 - 13:57:57 EST


Hi Linus,

The following changes since commit 17d85f33a83b84e7d36bc3356614ae06c90e7a08:

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma (2025-11-05 04:08:55 +0900)

are available in the Git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git tags/wq-for-6.19

for you to fetch changes up to 6d90215dc015f7630589b29fc2c771bce16a4c96:

workqueue: Don't rely on wq->rescuer to stop rescuer (2025-11-21 09:45:36 -1000)

----------------------------------------------------------------
workqueue: Changes for v6.19

- Rescuer affinity management: Affinity now updated only when detached using
wq_unbound_cpumask consistently. DISASSOCIATED workers also follow unbound
cpumask changes to avoid breaking CPU isolation.

- Rescuer cleanups preparing for fetching work items one by one from pool list:
Work assignment factored out, optimized to skip pwqs no longer needing
rescue, and shutdown logic simplified.

- Unused assert_rcu_or_wq_mutex_or_pool_mutex() removed.

----------------------------------------------------------------
Lai Jiangshan (6):
workqueue: Update the rescuer's affinity only when it is detached
workqueue: Let DISASSOCIATED workers follow unbound wq cpumask changes
workqueue: Init rescuer's affinities as wq_unbound_cpumask
workqueue: Factor out assign_rescuer_work()
workqueue: Only assign rescuer work when really needed
workqueue: Don't rely on wq->rescuer to stop rescuer

zhang jiao (1):
workqueue: Remove unused assert_rcu_or_wq_mutex_or_pool_mutex

kernel/workqueue.c | 86 +++++++++++++++++++++++++++++++-----------------------
1 file changed, 50 insertions(+), 36 deletions(-)

Thanks.
--
tejun