linux-kernel - Re: [PATCH 06/18] sched: set initial load avg of new forked task as its load weight

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Date:	Sun, 23 Dec 2012 20:00:33 +0800
From:	Alex Shi <lkml.alex@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Alex Shi <alex.shi@...el.com>, rob@...dley.net, mingo@...hat.com,
	peterz@...radead.org, gregkh@...uxfoundation.org,
	andre.przywara@....com, rjw@...k.pl, paul.gortmaker@...driver.com,
	akpm@...ux-foundation.org, paulmck@...ux.vnet.ibm.com,
	linux-kernel@...r.kernel.org, pjt@...gle.com,
	vincent.guittot@...aro.org
Subject: Re: [PATCH 06/18] sched: set initial load avg of new forked task as
 its load weight

>>       update_curr(cfs_rq);
>>       account_entity_enqueue(cfs_rq, se);
>> -     enqueue_entity_load_avg(cfs_rq, se, flags & ENQUEUE_WAKEUP);
>> +     enqueue_entity_load_avg(cfs_rq, se, flags &
>> +                             (ENQUEUE_WAKEUP | ENQUEUE_NEWTASK));
>
> It seems that just passing 'flags' is enough.

Uh, Yes, it's true. will remove this.
>
>>
>>       if (flags & ENQUEUE_WAKEUP) {
>>               place_entity(cfs_rq, se, 0);
>> @@ -2586,6 +2594,7 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
>>               cfs_rq->h_nr_running++;
>>
>>               flags = ENQUEUE_WAKEUP;
>> +             flags &= ~ENQUEUE_NEWTASK;
>
> Why is this needed?

Uh. not needed, will remove this too. Thanks a lot!

-- 
Thanks
    Alex
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