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Re: [PATCH 2/2] zram/zcomp: do not zero out zcomp private pages

From Minchan Kim <minchan@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH 2/2] zram/zcomp: do not zero out zcomp private pages
Date 2015-11-30 08:20 +0100
Message-ID <qAqUF-tv-3@gated-at.bofh.it> (permalink)
References <qziPw-6lh-5@gated-at.bofh.it> <qziPw-6lh-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Nov 27, 2015 at 01:23:14PM +0900, Sergey Senozhatsky wrote:
> Do not __GFP_ZERO allocated zcomp ->private pages. We keep
> allocated streams around and use them for read/write requests,
> so we supply a zeroed out ->private to compression algorithm
> as a scratch buffer only once -- the first time we use that
> stream. For the rest of IO requests served by this stream
> ->private usually contains some temporarily data from the
> previous requests.
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>

Thanks.
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Thread

[PATCH 0/2] zram: cleanup stream's ->private allocation code Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-11-27 05:30 +0100
  [PATCH 1/2] zram: pass gfp from zcomp frontend to backend Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-11-27 05:30 +0100
    Re: [PATCH 1/2] zram: pass gfp from zcomp frontend to backend Andrew Morton <akpm@linux-foundation.org> - 2015-12-01 01:20 +0100
      Re: [PATCH 1/2] zram: pass gfp from zcomp frontend to backend Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-12-01 01:50 +0100
  [PATCH 2/2] zram/zcomp: do not zero out zcomp private pages Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-11-27 05:30 +0100
    Re: [PATCH 2/2] zram/zcomp: do not zero out zcomp private pages Minchan Kim <minchan@kernel.org> - 2015-11-30 08:20 +0100

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