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[209.132.180.67]) by mx.google.com with ESMTP id i12si11611256plt.213.2018.12.02.15.22.12; Sun, 02 Dec 2018 15:22:27 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@gmail.com header.s=20161025 header.b=sKBDECGo; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725814AbeLBXUc (ORCPT + 99 others); Sun, 2 Dec 2018 18:20:32 -0500 Received: from mail-pl1-f193.google.com ([209.85.214.193]:42923 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725785AbeLBXUc (ORCPT ); Sun, 2 Dec 2018 18:20:32 -0500 Received: by mail-pl1-f193.google.com with SMTP id y1so647705plp.9 for ; Sun, 02 Dec 2018 15:20:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=zsgLcjT0H6YdHMbSaD+Z6evg7HeQs0ZjtklR7yBmM5M=; b=sKBDECGoicfmE+Gci/tgIB6UowiQ/Wt5wVeJpkBd1JK3ya5raTwsIrTWoUoE6xpVZK Yy3CYoXEgkNKrbXMcDs5UORUpliUVPcBOXWSicPqjGoG0QkkkB/IZI8JUqFLiZd8Zd9L JMa6iYFb9zV/5VuUFZirbXjeyizKF/NbSTi33gpDv4DTdmwLx7B2SiZFpjngW5FCjziw IiHfyq2FbTXYQovW/wdm6gPFUbsZwLQW1amjLw8azvX4bWSBjRelY9i+XLcOrU/HK7Ri AJyvzDLvwbkppJezR9pBXBH+ZBIOHFMWztwLdLAyr03TI4CLaKqopugv93Pf91XqA6wq dyyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=zsgLcjT0H6YdHMbSaD+Z6evg7HeQs0ZjtklR7yBmM5M=; b=RQLFBqelntL+WBoL7FBgWguNZaia7zR8RGORUbIfP0MQqYQpspu4pPZ4BvL92WPwSy Ymx+3JIqRNuIo/6M6marn73tZ2PWrCs8ODD13rrhQfeDWWd/OMjWfKTU3ITcOfOFyE3D c5UXXEobrRvSTZQqmgEtHv01KXEmWIBqoA4AGn2QWq3tY1gljVhRISzj988f3ufUD1lU X+fbZnGE/16cUngc3GJM+6BnPa7Qb3PuN9PpPiX13WL0aoiqAbNTjnUFdEXkFwFImoCK PSLRCng3KQ0mD3L5ETW9BmiJLiAIyQC1n7CqTNm/WiD0dv27a4sW6CHsg1v30reeNjKn FddQ== X-Gm-Message-State: AA+aEWZKyZZnthIsCk9STMo4ishkbUR9eTgPGzEXGoQ0XqfTmN8r34wB gD5WC4Pjuz8IOaj/xxHzMIYQvFX8xlE= X-Received: by 2002:a17:902:690c:: with SMTP id j12mr13644101plk.206.1543792829126; Sun, 02 Dec 2018 15:20:29 -0800 (PST) Received: from google.com ([2401:fa00:d:0:98f1:8b3d:1f37:3e8]) by smtp.gmail.com with ESMTPSA id g70sm18562179pfg.98.2018.12.02.15.20.26 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 02 Dec 2018 15:20:27 -0800 (PST) Date: Mon, 3 Dec 2018 08:20:23 +0900 From: Minchan Kim To: Sergey Senozhatsky Cc: Andrew Morton , LKML , Joey Pabalinas Subject: Re: [PATCH v3 0/7] zram idle page writeback Message-ID: <20181202232023.GB21560@google.com> References: <20181127055429.251614-1-minchan@kernel.org> <20181130043656.GC605@jagdpanzerIV> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181130043656.GC605@jagdpanzerIV> User-Agent: Mutt/1.10.1+60 (6df12dc1) (2018-08-07) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 30, 2018 at 01:36:56PM +0900, Sergey Senozhatsky wrote: > On (11/27/18 14:54), Minchan Kim wrote: > > Inherently, swap device has many idle pages which are rare touched since > > it was allocated. It is never problem if we use storage device as swap. > > However, it's just waste for zram-swap. > > > > This patchset supports zram idle page writeback feature. > > > > * Admin can define what is idle page "no access since X time ago" > > * Admin can define when zram should writeback them > > * Admin can define when zram should stop writeback to prevent wearout > > > > Detail is on each patch's description. > > > > Below first two patches are -stable material so it could go first > > separately with others in this series. > > I had some time to look at the patches > Reviewed-by: Sergey Senozhatsky > > Will give it some testing later; next week maybe. Thanks Sergey!