linux-kernel - Re: [PATCH 2/3] percpu: merge two loops when setting up group info

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Date:	Mon, 28 Oct 2013 10:37:35 +0800
From:	Wei Yang <weiyang@...ux.vnet.ibm.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Wei Yang <weiyang@...ux.vnet.ibm.com>, cl@...ux-foundation.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] percpu: merge two loops when setting up group info

On Sun, Oct 27, 2013 at 08:35:42AM -0400, Tejun Heo wrote:
>On Mon, Oct 21, 2013 at 04:58:12PM +0800, Wei Yang wrote:
>> There are two loops setting up the group info of pcpu_alloc_info. They share
>> the same logic, so merge them could be time efficient when there are many
>> groups.
>> 
>> This patch merge these two loops into one.
>
>It *looks* correct to me but I'd rather not change this unless you can
>show me this actually matters, which I find extremely doubtful given
>nr_groups would be in the order of few thousands even on an extremely
>large machine.

Tejun, thanks for your review and comments.

I agree with you that the nr_groups won't be very large, which means it will
not bring many benefits.

This is just a small code refine. If you don't like it, just drop it :-)

>
>Thanks.
>
>-- 
>tejun

-- 
Richard Yang
Help you, Help me

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