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

From Joonsoo Kim <iamjoonsoo.kim@lge.com>
Newsgroups linux.kernel
Subject Re: [PATCH] mm: extend zero pages to same element pages for zram
Date 2017-01-23 04:00 +0100
Message-ID <t2D1o-CT-7@gated-at.bofh.it> (permalink)
References <sWynM-7EX-21@gated-at.bofh.it> <sZ5yW-72H-25@gated-at.bofh.it> <t1ZwZ-1Ri-1@gated-at.bofh.it> <t2gHw-3D7-11@gated-at.bofh.it>
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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.

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Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-01-21 09:50 +0100
  Re: [PATCH] mm: extend zero pages to same element pages for zram zhouxianrong <zhouxianrong@huawei.com> - 2017-01-22 04:10 +0100
    Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky@gmail.com> - 2017-01-22 06:00 +0100
    Re: [PATCH] mm: extend zero pages to same element pages for zram Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2017-01-23 04:00 +0100
      Re: [PATCH] mm: extend zero pages to same element pages for zram zhouxianrong <zhouxianrong@huawei.com> - 2017-01-23 04:40 +0100
      Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-01-23 05:10 +0100
        Re: [PATCH] mm: extend zero pages to same element pages for zram Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2017-01-23 07:30 +0100
          Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-01-23 08:20 +0100
            Re: [PATCH] mm: extend zero pages to same element pages for zram Minchan Kim <minchan@kernel.org> - 2017-01-23 08:50 +0100
              Re: [PATCH] mm: extend zero pages to same element pages for zram zhouxianrong <zhouxianrong@huawei.com> - 2017-01-24 09:30 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Minchan Kim <minchan@kernel.org> - 2017-01-25 02:30 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-01-25 02:40 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Matthew Wilcox <willy@infradead.org> - 2017-01-25 03:50 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-01-25 05:20 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Minchan Kim <minchan@kernel.org> - 2017-01-25 06:00 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-01-25 06:40 +0100
                Re: [PATCH] mm: extend zero pages to same element pages for zram Minchan Kim <minchan@kernel.org> - 2017-01-25 06:50 +0100
    Re: [PATCH] mm: extend zero pages to same element pages for zram Matthew Wilcox <willy@infradead.org> - 2017-01-23 07:30 +0100
      答复: [PATCH] mm: extend zero pages to same element pages for zram zhouxianrong <zhouxianrong@huawei.com> - 2017-01-23 07:50 +0100

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