Re: [linux-pm] [PATCH] - race-free suspend. Was: Re: [PATCH 0/8] Suspend block api (version 8)

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On Wed, Jun 2, 2010 at 11:04 PM, mark gross <640e9920@xxxxxxxxx> wrote:
>>
>> There are many wakeup events possible in a typical system --
>> keypresses or other input events, network traffic, telephony events,
>> media events (fill audio buffer, fill video decoder buffer, etc), and
>> I think requiring that all wakeup event processing bottleneck through
>> a single userspace process is non-optimal here.
>
> Um doesn't the android framework bottleneck the user mode lock
> processing through the powermanager and any wake up event processing
> eventually has to grab a lock through this bottleneck anyway?

For "high level" framework/application level wakelocks, yes, but lower
level components beneath the java api layer use the kernel interface
directly.

Brian
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