linux-kernel - Re: [PATCH 1/1] mm/percpu.c: correct max_distance calculation for pcpu_embed_first

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Date:   Sat, 24 Sep 2016 05:16:56 +0800
From:   zijun_hu <zijun_hu@...o.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     zijun_hu@....com, Andrew Morton <akpm@...ux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-mm@...ck.org, cl@...ux.com
Subject: Re: [PATCH 1/1] mm/percpu.c: correct max_distance calculation for
 pcpu_embed_first_chunk()

On 2016/9/24 3:23, Tejun Heo wrote:
> On Sat, Sep 24, 2016 at 02:20:24AM +0800, zijun_hu wrote:
>> From: zijun_hu <zijun_hu@....com>
>>
>> correct max_distance from (base of the highest group + ai->unit_size)
>> to (base of the highest group + the group size)
>>
>> Signed-off-by: zijun_hu <zijun_hu@....com>
> 
> Nacked-by: Tejun Heo <tj@...nel.org>
> 
> Thanks.
>
frankly, the current max_distance is error, doesn't represents the ranges spanned by
areas owned by the groups