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SubjectRe: [PATCH 5/8] __cpu_up: use singlethreaded workqueue
On 04/02, Gautham R Shenoy wrote:
>
> Currently i386 and x86_64 __cpu_up uses the services of the kevents
> workqueue to bring the cpu up. Change this and use kthread workqueue
> instead which is single_threaded and won't be frozen during
> CPU_HOTPLUG.
>
> [...snip...]
>
> +void kthreadwq_queue_work(struct work_struct *work)
> +{
> + queue_work(helper_wq, work);
> +}
> +
> +int kthreadwq_up()
> +{
> + return (helper_wq != NULL);
> +}

Off-topic question: can't kernel/kmod.c use this workqueue too instead
of its own khelper_wq?

Oleg.

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