Re: Async suspend-resume patch w/ completions (was: Re: Async suspend-resume patch w/ rwsems)

From: Rafael J. Wysocki
Date: Sat Dec 19 2009 - 18:53:11 EST

On Sunday 20 December 2009, Linus Torvalds wrote:
> On Sun, 20 Dec 2009, Rafael J. Wysocki wrote:
> >
> > OK, so this means we can just forget about suspending/resuming i8042
> > asynchronously, which is a pity, because that gave us some real suspend
> > speedup on my test systems.
> No. What it means is that you shouldn't try to come up with these idiotic
> scenarios just trying to make trouble for yourself,

I haven't. I've just asked Dmitry for his opinion and got it. The fact that
you don't like it doesn't mean it's actually "idiotic".

> and using it as an excuse for crap.

I'm not sure what you mean exactly, but whatever.

> I suggest you try to treat the i8042 controller async, and see if it is
> problematic.

I already have and I don't see problems with it, but quite obviously I can't
test all possible configurations out there.

> If it isn't, don't do that then. But we actually have no real
> reason to believe that it would be problematic, at least on a PC where the
> actual logic is on the SB (presumably behind the LPC controller).
> Why would it be?

The embedded controller may depend on it.

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