Messages in this thread | | | Date | Thu, 27 May 2010 18:26:35 +0100 | From | Matthew Garrett <> | Subject | Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8) |
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On Thu, May 27, 2010 at 06:30:41PM +0100, Alan Cox wrote: > > > Opportunistic suspend is just a deep idle state, nothing else. > > > > No. The useful property of opportunistic suspend is that nothing gets > > scheduled. That's fundamentally different to a deep idle state. > > Nothing gets scheduled in a deep idle state either - its idle. We leave > the idle state to schedule anything.
Certainly, if you can force the system to be idle then you don't need opportunistic suspend. But you haven't shown how to do that without it being racey.
-- Matthew Garrett | mjg59@srcf.ucam.org
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