Messages in this thread | | | Subject | Re: RFC: Allow block drivers to poll for I/O instead of sleeping | From | Steven Rostedt <> | Date | Tue, 25 Jun 2013 09:57:28 -0400 |
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On Mon, 2013-06-24 at 23:07 -0400, Matthew Wilcox wrote: > On Mon, Jun 24, 2013 at 08:11:02PM -0400, Steven Rostedt wrote: > > What about hooking into the idle_balance code? That happens if we are > > about to go to idle but before the full schedule switch to the idle > > task. > > > > > > In __schedule(void): > > > > if (unlikely(!rq->nr_running)) > > idle_balance(cpu, rq); > > That may be a great place to try it from the PoV of the scheduler, but are > you OK with me threading a struct backing_dev_info * all the way through > the scheduler to idle_balance()? :-)
Well, there's other ways to pass data down besides parameters. You could attach something to the task itself.
-- Steve
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