linux-kernel - Re: [PATCH 1/4] cpu_stop: implement stop

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Date:	Tue, 04 May 2010 08:40:42 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	mingo@...e.hu, linux-kernel@...r.kernel.org, x86@...nel.org,
	oleg@...hat.com, rusty@...tcorp.com.au, sivanich@....com,
	heiko.carstens@...ibm.com, dipankar@...ibm.com,
	josh@...edesktop.org, paulmck@...ux.vnet.ibm.com,
	akpm@...ux-foundation.org, arjan@...ux.intel.com,
	torvalds@...ux-foundation.org
Subject: Re: [PATCH 1/4] cpu_stop: implement stop_cpu[s]()

Hello,

On 05/03/2010 03:26 PM, Peter Zijlstra wrote:
> If you do:
> 
>  done = { .ret = -ENOENT, };
> 
> And remove that if()
> 
>> +		ret = work->fn(work->arg);
>> +		if (ret)
>> +			done->ret = ret;
>> +
> 
> You can do away with all the ->executed bits.

Oh, I had code piece which wanted to discern between -ENOENT from
non-excution and -ENOENT return from the work function which seems
gone now.  I'll check things again and drop ->executed if everything
looks okay.

Thanks.

-- 
tejun
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