linux-kernel - Re: Work queue questions

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Message-ID: <CAHCeSFr4stF6BNGL7=7oPYzKqOZ-Ya8VUD02rjFRq1thMULFXw@mail.gmail.com>
Date:	Mon, 24 Sep 2012 20:57:40 +0100
From:	Deepawali Verma <dverma249@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Chinmay V S <cvs268@...il.com>,
	Daniel Taylor <Daniel.Taylor@....com>,
	anish singh <anish198519851985@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Work queue questions

Hi Tejun,

May be I misunderstood, I read in the documentation about max_active.
In this case, max_active is 1, but I created three workqueues, do you
mean to say for this case, single thread can process three requests
queued up in the three different workqueues.

Sorry, if I misunderstood.

Regards,
Deepa



On Mon, Sep 24, 2012 at 7:10 PM, Tejun Heo <tj@...nel.org> wrote:
> On Mon, Sep 24, 2012 at 05:56:10PM +0100, Deepawali Verma wrote:
>> Hi,
>>
>> This is sample code snippet as I cannot post my project code. In
>> reality here, this work handler is copying the big chunks of data that
>> code is
>>  here in my driver. This is running on quad core cortex A9 Thats why I
>> asked. If there are 4 cpu cores, then there must be parallelism. Now
>> Tajun, what do you say?
>
> My name is Tejun and please lose the frigging attitude when you're
> asking things.
>
>> >>> alloc_workqueue(obj[i].my_obj_wq_name,WQ_UNBOUND,1);
>
> Especially if you're not properly reading any of the documentation,
> function comment and my explicit response mentioning @max_active. :(
>
> --
> tejun
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