Merge tag 'wq-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:

 - Lai fixed a bug where CPU hotplug and workqueue attribute changes
   race leaving some workqueues not fully updated. This involved
   refactoring and changing how online CPUs are tracked. The resulting
   code is cleaner.

 - Workqueue watchdog touch operation was causing too much cacheline
   contention on very large machines. Nicholas improved scalabililty by
   avoiding unnecessary global updates.

 - Code cleanups and minor rescuer behavior improvement.

 - The last commit 58629d4871e8 ("workqueue: Always queue work items to
   the newest PWQ for order workqueues") is a cherry-picked straggler
   commit from for-6.10-fixes, a fix for a bug which may not actually
   trigger.

* tag 'wq-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (24 commits)
  workqueue: Always queue work items to the newest PWQ for order workqueues
  workqueue: Rename wq_update_pod() to unbound_wq_update_pwq()
  workqueue: Remove the arguments @hotplug_cpu and @online from wq_update_pod()
  workqueue: Remove the argument @cpu_going_down from wq_calc_pod_cpumask()
  workqueue: Remove the unneeded cpumask empty check in wq_calc_pod_cpumask()
  workqueue: Remove cpus_read_lock() from apply_wqattrs_lock()
  workqueue: Simplify wq_calc_pod_cpumask() with wq_online_cpumask
  workqueue: Add wq_online_cpumask
  workqueue: Init rescuer's affinities as the wq's effective cpumask
  workqueue: Put PWQ allocation and WQ enlistment in the same lock C.S.
  workqueue: Move kthread_flush_worker() out of alloc_and_link_pwqs()
  workqueue: Make rescuer initialization as the last step of the creation of a new wq
  workqueue: Register sysfs after the whole creation of the new wq
  workqueue: Simplify goto statement
  workqueue: Update cpumasks after only applying it successfully
  workqueue: Improve scalability of workqueue watchdog touch
  workqueue: wq_watchdog_touch is always called with valid CPU
  workqueue: Remove useless pool->dying_workers
  workqueue: Detach workers directly in idle_cull_fn()
  workqueue: Don't bind the rescuer in the last working cpu
  ...

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