linux-kernel - Re: [PATCH V4 3/4] block: queue work on unbound wq

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Message-ID: <CAKohpok_pLyVruwq6JLO95cqobpyYgsQnii0sB0oSh5j=rj-=A@mail.gmail.com>
Date:	Mon, 22 Apr 2013 11:50:04 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	robin.randhawa@....com, Steve.Bannister@....com,
	Liviu.Dudau@....com, charles.garcia-tobin@....com,
	arvind.chauhan@....com, davem@...emloft.net, airlied@...hat.com,
	axboe@...nel.dk, tglx@...utronix.de, peterz@...radead.org,
	mingo@...hat.com, rostedt@...dmis.org,
	linux-rt-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 3/4] block: queue work on unbound wq

On 10 April 2013 00:00, Tejun Heo <tj@...nel.org> wrote:
> On Tue, Apr 09, 2013 at 01:00:59PM +0530, Viresh Kumar wrote:

>> +#ifdef CONFIG_WQ_POWER_EFFICIENT
>> +static bool wq_power_efficient = 0;
>> +module_param_named(power_efficient, wq_power_efficient, bool, 0444);
>> +#endif
>
> I don't think we need to make the whole thing configurable.  Turning
> it off isn't gonna save much - my gut tells me it's gonna be four
> instructions. :)
>
> What I meant was that the default value for the parameter would
> probably be need to be configurable so that mobile people don't have
> to include the kernel param all the time or patch the kernel
> themselves.

I didn't get it completely.. Are you asking to set the default value
to 1 instead
to keep it enabled by default if config option is selected?
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