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

From: Viresh Kumar
Date: Tue Apr 09 2013 - 06:11:43 EST


On 9 April 2013 15:28, Amit Kucheria <amit.kucheria@xxxxxxxxxx> wrote:
> On Tue, Apr 9, 2013 at 3:25 PM, Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
>> But how will we know if the user of wq wants to save power or not? He must
>> give some flag which is only used when power saving is enabled. We can't
>> set WQ_UNBOUND for all wqs.
>
> You have the Kconfig option + the module param for that. You don't need a flag.

I still don't agree.. Suppose there are three users A, B and C. A wants to use
WQ_UNBOUND when POWER_EFFICIENT Kconfig option and module param is
enabled. And B always want to enable WQ_UNBOUND and C doesn't want to
set WQ_UNBOUND at all..

Now, how will each of these behave differently based on module param settings.
B and C are quite clear but A needs a flag for indicating its usage.
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