Messages in this thread | | | Date | Wed, 17 Jan 2007 21:55:01 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: [PATCH] flush_cpu_workqueue: don't flush an empty ->worklist |
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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.
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