linux-kernel - Re: [PATCH] sched: wakeup buddy

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Message-ID: <51394DF1.1030708@linux.vnet.ibm.com>
Date:	Fri, 08 Mar 2013 10:33:21 +0800
From:	Michael Wang <wangyun@...ux.vnet.ibm.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...nel.org>,
	Alex Shi <alex.shi@...el.com>, Paul Turner <pjt@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Nikunj A. Dadhania" <nikunj@...ux.vnet.ibm.com>,
	Ram Pai <linuxram@...ibm.com>
Subject: Re: [PATCH] sched: wakeup buddy

On 03/08/2013 01:21 AM, Peter Zijlstra wrote:
> On Wed, 2013-03-06 at 15:06 +0800, Michael Wang wrote:
>> +static inline int wakeup_related(struct task_struct *p)
>> +{
>> +       if (wakeup_buddy(p, current)) {
>> +               /*
>> +                * Now check whether current still focus on his buddy.
>> +                */
>> +               if (wakeup_buddy(current, p))
>> +                       return 1;
>> +       }
>> +
>> +       return 0;
>> +}
> 
> Not commenting on the thing in general, but:
> 
> static inline bool wakeup_related(struct task_struct *p)
> {
> 	return wakeup_buddy(p, current) && wakeup_buddy(current, p);
> }
> 
> is far shorter and easier to read :-)

Right, I will correct it :)

Regards,
Michael Wang

> 

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