Re: Attempted summary of suspend-blockers LKML thread

Matthew Garrett
2010-08-05T14:16:20Z

On Thu, Aug 05, 2010 at 07:07:06AM -0700, david@lang.hm wrote:
> On Thu, 5 Aug 2010, Matthew Garrett wrote:
>> The decision on whether or not to go to sleep isn't the difficult bit of
>> this problem space.
>
> but isn't that all that wakelocks do? affect the decision on whether or
> not to go to sleep.

You could think of them that way, but it's not the useful aspect of them
- that much could be implemented entirely in userspace. Wakelocks
provide a mechanism for userspace to ensure that it's handled all
received events before a system suspend takes place.

--
Matthew Garrett | mjg59@srcf.ucam.org