linux-kernel - Re: [PATCH] mm: extend zero pages to same element pages for zram

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Date:   Mon, 23 Jan 2017 11:32:43 +0800
From:   zhouxianrong <zhouxianrong@...wei.com>
To:     Joonsoo Kim <iamjoonsoo.kim@....com>
CC:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <akpm@...ux-foundation.org>, <sergey.senozhatsky@...il.com>,
        <minchan@...nel.org>, <ngupta@...are.org>,
        <Mi.Sophia.Wang@...wei.com>, <zhouxiyu@...wei.com>,
        <weidu.du@...wei.com>, <zhangshiming5@...wei.com>,
        <won.ho.park@...wei.com>
Subject: Re: [PATCH] mm: extend zero pages to same element pages for zram

hey Joonsoo:
	i would test and give the same element type later.

On 2017/1/23 10:58, Joonsoo Kim wrote:
> Hello,
>
> On Sun, Jan 22, 2017 at 10:58:38AM +0800, zhouxianrong wrote:
>> 1. memset is just set a int value but i want to set a long value.
>
> Sorry for late review.
>
> Do we really need to set a long value? I cannot believe that
> long value is repeated in the page. Value repeatition is
> usually done by value 0 or 1 and it's enough to use int. And, I heard
> that value 0 or 1 is repeated in Android. Could you check the distribution
> of the value in the same page?
>
> Thanks.
>
>
> .
>