Merge tag 'rcu.release.v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Uladzislau Rezki:
 "Misc fixes:
   - check if IRQs are disabled in rcu_exp_need_qs()
   - instrument KCSAN exclusive-writer assertions
   - add extra WARN_ON_ONCE() check
   - set the cpu_no_qs.b.exp under lock
   - warn if callback enqueued on offline CPU

  Torture-test updates:
   - add rcutorture.preempt_duration kernel module parameter
   - make the TREE03 scenario do preemption
   - improve pooling timeouts for rcu_torture_writer()
   - improve output of "Failure/close-call rcutorture reader segments"
   - add some reader-state debugging checks
   - update doc of polled APIs
   - add extra diagnostics for per-reader-segment preemption
   - add an extra test for sched_clock()
   - improve testing on unresponsive systems

  SRCU updates:
   - improve doc for srcu_read_lock() in terms of return value
   - fix typo in comments
   - remove redundant GP sequence checks in the srcu_funnel_gp_start"

* tag 'rcu.release.v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (31 commits)
  srcu: Remove redundant GP sequence checks in srcu_funnel_gp_start
  srcu: Fix typo s/srcu_check_read_flavor()/__srcu_check_read_flavor()/
  srcu: Guarantee non-negative return value from srcu_read_lock()
  MAINTAINERS: Update RCU git tree
  rcu: Add lockdep_assert_irqs_disabled() to rcu_exp_need_qs()
  rcu: Add KCSAN exclusive-writer assertions for rdp->cpu_no_qs.b.exp
  rcu: Make preemptible rcu_exp_handler() check idempotency
  rcu: Replace open-coded rcu_exp_need_qs() from rcu_exp_handler() with call
  rcu: Move rcu_report_exp_rdp() setting of ->cpu_no_qs.b.exp under lock
  rcu: Make rcu_report_exp_cpu_mult() caller acquire lock
  rcu: Report callbacks enqueued on offline CPU blind spot
  rcutorture: Use symbols for SRCU reader flavors
  rcutorture: Add per-reader-segment preemption diagnostics
  rcutorture: Read CPU ID for decoration protected by both reader types
  rcutorture: Add preempt_count() to rcutorture_one_extend_check() diagnostics
  rcutorture: Add parameters to control polled/conditional wait interval
  rcutorture: Add documentation for recent conditional and polled APIs
  rcutorture: Ignore attempts to test preemption and forward progress
  rcutorture: Make rcutorture_one_extend() check reader state
  rcutorture: Pretty-print rcutorture reader segments
  ...

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