linux-kernel - Re: [PATCH 32/40] async: introduce workqueue based alternative implementation

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Message-ID: <4B56BDBB.9060200@kernel.org>
Date:	Wed, 20 Jan 2010 17:24:27 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Arjan van de Ven <arjan@...ux.intel.com>
CC:	torvalds@...ux-foundation.org, mingo@...e.hu, peterz@...radead.org,
	awalls@...ix.net, linux-kernel@...r.kernel.org, jeff@...zik.org,
	akpm@...ux-foundation.org, jens.axboe@...cle.com,
	rusty@...tcorp.com.au, cl@...ux-foundation.org,
	dhowells@...hat.com, avi@...hat.com, johannes@...solutions.net,
	andi@...stfloor.org, Arjan van de Ven <arjan@...radead.org>
Subject: Re: [PATCH 32/40] async: introduce workqueue based alternative implementation

Hello,

On 01/20/2010 03:03 PM, Arjan van de Ven wrote:
>> Yeap, but then again, whatever we do, all those synchronization
>> interfaces can be mapped onto each other eventually.

Eh... gave it a shot and it was too complex.

> and maybe we need to be smart about this;
> for me, sharing the backend implementation (the pool part) makes sense,
> although a thread pool really is not much code. But a smart thread pool
> may be.
>
> as for interfaces, I really really think it's ok to have different
> interfaces for usecases that are very different, as long as the
> interfaces are logical in their domain. I rather have 2 interfaces, each
> logical to their domain, than a forced joined interface that doesn't
> really naturally fit either.

I'll just replace the backend worker pool for now.  If necessary, we
can try to unify the sync model later, I suppose.

Thanks.

-- 
tejun
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