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SubjectRe: [PATCH] flush_cpu_workqueue: don't flush an empty ->worklist
On Wed, Jan 17, 2007 at 06:47:16PM +0300, Oleg Nesterov wrote:
> Btw, I agree it is good to have a sleeping lock to protect cpu_online_map.
> But it should be separate from workqueue_mutex, and it is not needed for
> create/destroy/flush funcs.

Which is what lock_cpu_hotplug() attempted to provide but which
has recd lot of flak in recent days. I guess if someone implements
process freezer based locking of cpu_online_map, we will know better how
suited later is for cpu hotplug.

--
Regards,
vatsa
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