[PATCH v6 00/46] CPU hotplug: stop_machine()-free CPU hotplug

Rusty Russell rusty at rustcorp.com.au
Thu Feb 21 19:31:46 EST 2013


"Srivatsa S. Bhat" <srivatsa.bhat at linux.vnet.ibm.com> writes:
> Hi,
>
> This patchset removes CPU hotplug's dependence on stop_machine() from the CPU
> offline path and provides an alternative (set of APIs) to preempt_disable() to
> prevent CPUs from going offline, which can be invoked from atomic context.
> The motivation behind the removal of stop_machine() is to avoid its ill-effects
> and thus improve the design of CPU hotplug. (More description regarding this
> is available in the patches).

If you're doing a v7, please put your benchmark results somewhere!

The obvious place is in the 44/46.

Thanks,
Rusty.



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