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[209.132.180.67]) by mx.google.com with ESMTP id 129si109713pfy.160.2019.06.05.17.25.46; Wed, 05 Jun 2019 17:26:05 -0700 (PDT) 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=pass header.i=@gmail.com header.s=20161025 header.b=VhicxqzH; 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=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726638AbfFFAYg (ORCPT + 99 others); Wed, 5 Jun 2019 20:24:36 -0400 Received: from mail-lf1-f66.google.com ([209.85.167.66]:40531 "EHLO mail-lf1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726543AbfFFAYg (ORCPT ); Wed, 5 Jun 2019 20:24:36 -0400 Received: by mail-lf1-f66.google.com with SMTP id a9so199286lff.7 for ; Wed, 05 Jun 2019 17:24:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=N1TbV63VvRheR5OgJaz2rfajmrYQQlbC4P7mXaYbfMg=; b=VhicxqzHgalolOYgzImxTAg2DnXaE9sizZjeFz2laU6Mhcz0uaO5DMJBRj0nNsCpVX CejYO6l2zddgkF7VyKKkgrKWcFgiCN3CQHo69ZqkTYgfXK+O5PpPERricJEYTVZesK88 bW7myqV+mjCeVS1lufYXhgsjGA96xAYSoFhdegPcOIK7vEXein990h+BhIwQEnGJP/+F ie4Fv9bHJZLPWtVDw+pT9atpxKRxkJsBibNXoyZvkli6btodCReDjs4DALS6lervjSKV CX9uJsL83jO5wrfYxiIJuH6nWclhy5a4NLiSW/EykeAow2dB0LuUC70JGuYPJs288yZf IiWQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=N1TbV63VvRheR5OgJaz2rfajmrYQQlbC4P7mXaYbfMg=; b=DKg3lD9+VozGxElqr/5zI5ZmTAkBzyOUt7xFm9nN9+/2Me6DP9Fh54KN0k47Jcc7SW 1ueJf+DWoC8DjNs6ZxfLSRq+itu8IRPE89KejLqR/wruR02fdN5ZyYBoEmv/Oe3yVVeB lMk1l6rN7NNBRvs+3CSlwTUSVd5XAq87Q3aeGykD13le2IOKAi3FmBv4opK6NW6J/rBl 1VvzbNjymCuhzeD0M0U9EkZLnQCwuBLfnHJzQYQlxyu/qdvNf37FREMx6c3W7tp1IV46 skAr9fNCzIThWpiLSN+34zzauBj/QbgZVdTVDRe+jltZ1744c/gZQfNyDULLpUaBzSHr 5Rgw== X-Gm-Message-State: APjAAAVJ3A/SPKENA0TJfHhA/KHh2s2lxRj8UU4bJHqi8e6q6m0gCMh9 rfWYt735kkQ3RKH/tGSH93szzEbK1WRp8dkVPfc= X-Received: by 2002:ac2:43bb:: with SMTP id t27mr2134686lfl.187.1559780673815; Wed, 05 Jun 2019 17:24:33 -0700 (PDT) MIME-Version: 1.0 References: <20190605100630.13293-1-teawaterz@linux.alibaba.com> In-Reply-To: From: Vitaly Wool Date: Thu, 6 Jun 2019 02:23:56 +0200 Message-ID: Subject: Re: [PATCH V3 1/2] zpool: Add malloc_support_movable to zpool_driver To: Shakeel Butt Cc: Hui Zhu , Dan Streetman , Minchan Kim , Nitin Gupta , Sergey Senozhatsky , Seth Jennings , Linux MM , LKML Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Shakeel, On Wed, Jun 5, 2019 at 6:31 PM Shakeel Butt wrote: > > On Wed, Jun 5, 2019 at 3:06 AM Hui Zhu wrote: > > > > As a zpool_driver, zsmalloc can allocate movable memory because it > > support migate pages. > > But zbud and z3fold cannot allocate movable memory. > > > > Cc: Vitaly thanks for looping me in :) > It seems like z3fold does support page migration but z3fold's malloc > is rejecting __GFP_HIGHMEM. Vitaly, is there a reason to keep > rejecting __GFP_HIGHMEM after 1f862989b04a ("mm/z3fold.c: support page > migration"). No; I don't think I see a reason to keep that part. You are very welcome to submit a patch, or otherwise I can do it when I'm done with the patches that are already in the pipeline. Thanks, Vitaly