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SubjectRe: [RFC][PATCH 2/2] rcu classic: new algorithm for callbacks-processing(v2)

* Lai Jiangshan <laijs@cn.fujitsu.com> wrote:

> This is v2, it's a little deference from v1 that I
> had send to lkml.
> use ACCESS_ONCE
> use rcu_batch_after/rcu_batch_before for batch # comparison.
>
> rcutorture test result:
> (hotplugs: do cpu-online/offline once per second)
>
> No CONFIG_NO_HZ: OK, 12hours
> No CONFIG_NO_HZ, hotplugs: OK, 12hours
> CONFIG_NO_HZ=y: OK, 24hours
> CONFIG_NO_HZ=y, hotplugs: Failed.
> (Failed also without my patch applied, exactly the same bug occurred,
> http://lkml.org/lkml/2008/7/3/24)

thanks, i've applied this to tip/core/rcu - but it would be nice have an
ack/nak from Paul as well, before we can proceed further.

Ingo


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