Re: [PATCH] kthread: Don't depend on work queues

From: Rafael J. Wysocki
Date: Wed Apr 11 2007 - 10:41:26 EST


On Wednesday, 11 April 2007 15:31, Gautham R Shenoy wrote:
> On Wed, Apr 11, 2007 at 03:48:05PM +0400, Oleg Nesterov wrote:
> > On 04/11, Gautham R Shenoy wrote:
> > >
> > > On Wed, Apr 11, 2007 at 12:13:34PM +0200, Rafael J. Wysocki wrote:
> > > >
> > > > It should be calling try_to_freeze() somewhere anyway. We may need to freeze
> > > > all tasks in some cases.
> > >
> > > How about
> > > for (;;) {
> > > try_to_freeze();
> > >
> > > ?
> >
> > Why?
>
> If some event (defintely NOT cpu hotplug) needs this thread frozen.

I didn't mean the CPU hotplug too, BTW, but I'm considering freezing all tasks
at the late stage of suspend (ie. after freezing devices).

Greetings,
Rafael
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