Re: [RFC PATCH(Experimental) 0/4] Freezer based Cpu-hotplug

From: Gautham R Shenoy
Date: Wed Feb 21 2007 - 09:54:28 EST

On Sat, Feb 17, 2007 at 12:24:45PM +0100, Rafael J. Wysocki wrote:
> Pavel, do you think we can remove the PF_NOFREEZE from bluetooth, BTW?

The create_workqueue by default marks the worker_threads to be
non_freezable. For cpu hotplug, all workqueues can be frozen
except the "kthread" workqueue (which is single threaded, so won't
be frozen anyway).

And a quick cscope scan shows that only the "xfslogd" and "xfsdatad"
are the only freezable workqueues. Any particular reason
for not marking rest of the non-single_threaded workqueues freezeable ??

thanks and regards
Gautham R Shenoy
Linux Technology Center
IBM India.
"Freedom comes with a price tag of responsibility, which is still a bargain,
because Freedom is priceless!"
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