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SubjectRe: [PATCH tip/core/rcu 0/20] Miscellaneous fixes for 4.11
On Sat, Jan 14, 2017 at 01:12:55AM -0800, Paul E. McKenney wrote:
> Hello!
>
> This series provides miscellaneous fixes:
>
> 1. Make RCU_EXPEDITE_BOOT be the default in order to speed up
> boot, courtesy of Sebastian Andrzej Siewior.
>
> 2. Make RCU suspicious-access lockdep splats use pr_err().
>
> 3. Disable sys_membarrier when nohz_full is enabled, courtesy
> of Mathieu Desnoyers.
>
> 4. Only dump stalled-tasks stacks if there was a real stall, courtesy
> of Byungchul Park.
>
> 5. Remove unneeded rcu_process_callbacks() declarations.
>
> 6. Remove unused but set "mask" variable, courtesy of Tobias Klauser.
>
> 7. Remove short-term CPU kicking.
>
> 8. Add long-term CPU kicking.
>
> 9. Once again use NMI-based stack traces in stall warnings.
>
> 10. Add functions to test for trivial grace periods.
>
> 11. Make cond_resched() provide RCU quiescent state, which will
> hopefully lead to the removal of cond_resched_rcu_qs().
>
> 12. Re-enable TASKS_RCU for User Mode Linux.
>
> 13. Don't wake rcuc/X kthreads on NOCB CPUs.
>
> 14. Add comment headers to expedited-grace-period counter functions.
>
> 15. Make rcu_cpu_starting() use its "cpu" argument.
>
> 16. Enable RCU tracepoints by default to aid in debugging, courtesy
> of Matt Fleming.
>
> 17. Fix comment in rcu_organize_nocb_kthreads(), which no longer
> spawns kthreads.
>
> 18. Clarify comments about when llist locking is needed, courtesy
> of Joel Fernandes.
>
> 19. Eliminate unused expedited_normal counter.
>
> 20. Add lockdep checks to synchronous expedited primitives.

I replied to patches 2, 8, 10, and 11 with comments. For the rest:
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

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