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SubjectRe: [PATCHSET] workqueue: reimplement CPU hotplug to keep idle workers
On Tue, 2012-07-17 at 10:12 -0700, Tejun Heo wrote:
> Currently, workqueue destroys all workers for offline CPUs unless
> there are lingering work items.

_that_ is the root of all ugly in that thing. I still find it utterly
insane you can create 'per-cpu' workqueues and then violate the per-cpu
property with hotplug and get your work ran on a different CPU.

It should be a hard error to use queue_work_on() and then run the work
on a different cpu. Yet somehow this isn't so.

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