Merge tag 'rcu.release.v7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Uladzislau Rezki:
 "Torture test updates:

   - Improve kvm-series.sh script by adding examples in its header
     comment

   - Lazy RCU is more fully tested now by replacing call_rcu_hurry()
     with call_rcu() and doing rcu_barrier() to motivate lazy callbacks
     during a stutter pause

   - Add more synonyms for the "--do-normal" group of torture.sh
     command-line arguments

  Misc changes:

   - Reduce stack usage of nocb_gp_wait() to address frame size warning
     when built with CONFIG_UBSAN_ALIGNMENT

   - The synchronize_rcu() call can detect the flood and latches a
     normal/default path temporary switching to wait_rcu_gp() path

   - Document using rcu_access_pointer() to fetch the old pointer for
     lockless cmpxchg() updates

   - Simplify some RCU code using clamp_val()

   - Fix a kerneldoc header comment typo in srcu_down_read_fast()"

* tag 'rcu.release.v7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/rcu/linux:
  rcu/nocb: reduce stack usage in nocb_gp_wait()
  rcu-tasks: Fix possible boot-time tests failed for the call_rcu_tasks()
  rcu: Latch normal synchronize_rcu() path on flood
  rcu: Document rcu_access_pointer() feeding into cmpxchg()
  rcu: Simplify param_set_next_fqs_jiffies() by applying clamp_val()
  rcu: Simplify rcu_do_batch() by applying clamp()
  checkpatch: Undeprecate rcu_read_lock_trace() and rcu_read_unlock_trace()
  srcu: Fix kerneldoc header comment typo in srcu_down_read_fast()
  torture: Allow "norm" abbreviation for "normal"
  torture: Improve kvm-series.sh header comment
  torture: Add torture_sched_set_normal() for user-specified nice values
  rcutorture: Fully test lazy RCU

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