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SubjectRe: [PATCH tip/core/rcu 0/9] Preview of additional RCU changes for 3.3
On Tue, Nov 15, 2011 at 12:27:36PM -0800, Paul E. McKenney wrote:
> This patchset is in addition to the set previously posted (see
> https://lkml.org/lkml/2011/11/2/363). This new set permits the
> reworked RCU_FAST_NO_HZ code to be used from TREE_PREEMPT_RCU,
> allows rcutorture to shut down the system after a fixed time
> period (useful for KVM-based testing), adds an API to
> replace the "->pid == 0" discussed in response to the earlier
> patch set, and applies this API where applicable. The patches are
> as follows:
>
> 1. Update the RCU_FAST_NO_HZ config definition to allow it to
> be used in TREE_PREEMPT_RCU builds, since that is now legal.
> 2. Add a module parameter that permit rcutorture to shut down the
> system cleanly after the test has run for the specified time.
> 3. Add a module parameter to allow rcutorture start running
> as soon as it is initialized.
> 4. Add is_idle_task() API to replace open-coded tests of ->pid
> against zero.
> 5-9. Apply the new is_idle_task() API where it makes sense.

I replied to patches 2-4 with review comments. For the rest:

Reviewed-by: Josh Triplett <josh@joshtriplett.org>


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