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From: Minchan Kim <minchan@kernel.org>
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: Re: [PATCH 2/2] zram/zcomp: do not zero out zcomp private pages
Date: Mon, 30 Nov 2015 16:14:28 +0900	[thread overview]
Message-ID: <20151130071428.GC3262@bbox> (raw)
In-Reply-To: <1448598194-24754-3-git-send-email-sergey.senozhatsky@gmail.com>

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.

      reply	other threads:[~2015-11-30  7:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-27  4:23 [PATCH 0/2] zram: cleanup stream's ->private allocation code Sergey Senozhatsky
2015-11-27  4:23 ` [PATCH 1/2] zram: pass gfp from zcomp frontend to backend Sergey Senozhatsky
2015-12-01  0:10   ` Andrew Morton
2015-12-01  0:44     ` Sergey Senozhatsky
2015-11-27  4:23 ` [PATCH 2/2] zram/zcomp: do not zero out zcomp private pages Sergey Senozhatsky
2015-11-30  7:14   ` Minchan Kim [this message]

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