Re: [PATCH 0/8] Suspend block api (version 6)

From: Rafael J. Wysocki
Date: Tue May 11 2010 - 14:18:12 EST


On Tuesday 11 May 2010, Matthew Garrett wrote:
> On Tue, May 11, 2010 at 10:24:43AM -0700, Tony Lindgren wrote:
>
> > For the failed suspend path in the kernel, currently the kernel would
> > unwind back all the drivers because of the failed driver, but that path
> > should be possible to optimize.
>
> If you think it's possible to make this work then feel free to. But at
> the point where you're adding code to every driver's suspend function to
> determine whether or not it's got any pending events that userspace
> hasn't consumed yet, and adding code to every bit of userspace to allow
> it to indicate whether or not it's busy consuming events or just busy
> drawing 3D bouncing cattle, I think you've reinvented suspend blocks.

Yeah, pretty much so.

Thanks,
Rafael
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