Re: [PATCH V2 0/4] introduce device async actions mechanism

From: Alan Stern
Date: Tue Aug 04 2009 - 13:34:10 EST


On Tue, 4 Aug 2009, Rafael J. Wysocki wrote:

> Not only that. I'd like to simplify the design, because IMO using one async
> domain would be much more straightforward than using multiple ones.

> If I understand the async framework correctly, the domains are only used for
> synchronization, ie. if you want to wait for a group of async operations to
> complete, you can put them all into one domain and then call
> async_synchronize_full_domain() to wait for them all together.
>
> You don't need multiple domains to run multiple things in parallel.

There's a basic confusion going on here.

Rui is using "async domain" to mean a collection of devices which
will be suspended or resumed serially. Different domains run in
parallel.

Rafael is using "async domain" to mean a collection of devices which
will be suspended or resumed in parallel. Different domains run
serially.

Once that is cleared up, you should be able to communicate a little
better... :-)

Alan Stern

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