Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp527397pxb; Thu, 21 Oct 2021 04:33:56 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwqj1jEiQNMmdboUo/o4sXIduiF8zJss9LiGN4oL3n1vJIDN7FWf36ZppqLM+t6lYX1ZHto X-Received: by 2002:a17:90a:62ca:: with SMTP id k10mr5939547pjs.38.1634816036021; Thu, 21 Oct 2021 04:33:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1634816036; cv=none; d=google.com; s=arc-20160816; b=KCMz1ShnDZNiaRc7Ny/9IKKBI39rvTcvEUjynh3PAKI2Igt2D25MAU6YOjwKAGaL/w e6arhqiNM7K2iMz2qw2juH3cTLz42duTi+hUyUYkqWTJ84K5kFoaX8aQ4wq8SZ1RM5Rj 12Rkxuf+xD7brQcicQqY5GBokJsWJqKwPjSzyM7EU1arxbvRi2ElEC6/fZd1Xerl4JQ3 jv0N/v1bA9EE5tOgiKjCTsziMSgO8VzwxeUrCudwwF/5R0QpoAt1sB9tPw1iGrZ5yrjR aVXay++yEbofMGG0R/4H9JBRsp/tZ/b+nhi4EEbSzVXe8GZHlf0PpPuRatYKUJOHezAv KHmw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=6z9iwoyDbMTCjGFW73yfcNKAqTQILctqsZjjZI0Dwcs=; b=i3U55zLOEjTb79Iv9JGqLnbPYULCTqoYfJaDVOKBDwEwZIj2IObs52AfRgk6AaDXVO VbA3jIjivo2kycepHRReYmKxwwtLunxNHN+O6uf/HkPiIsnrdDRAuq7NLoYclPg0ginm W7sYIkuM+ISN3FQZsvYI9ZItcUPzMP/gluu0J3Aavwixv9u9SNoVZi1vf2zdLryAWpQ9 5Lb6uJegyb/9ufN6rfkGcQ9e2aecOUArH+pkaQpVS6blSJKKO34dIW/nCfaqPWW6ztzb N7Skabqk/f7CBZpWArISOF7FJERlGZ9a1yTBLZtfpNhgVRYjFjoMCIShKWo5/PFkiK91 YNYg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=BdKkN+FR; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id 10si6157146pfl.338.2021.10.21.04.33.43; Thu, 21 Oct 2021 04:33:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=bombadil.20210309 header.b=BdKkN+FR; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230527AbhJULdj (ORCPT + 99 others); Thu, 21 Oct 2021 07:33:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230502AbhJULdc (ORCPT ); Thu, 21 Oct 2021 07:33:32 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D23AAC061749; Thu, 21 Oct 2021 04:31:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=6z9iwoyDbMTCjGFW73yfcNKAqTQILctqsZjjZI0Dwcs=; b=BdKkN+FRK6bMlY4rj14koEYCOD FVkxPgZWZtZwtMbXM8rqbEj3ViPo1UKzkbuv9b3I9SndM+ZA42a9QaHBM4KjjhRJVQCtxEyfe9FLc 2555orMj3GSv4hT9BTemQWoxHS0c/jgoahX78E+WEgKDPYgagLMruCv9OCaPfYIOpDmAT7KTMCfP5 qHiFDZPrf2PRUPpMLQI0fW57qA8ms5T5XsRpR77WNOSL7up1nsBMhjJe5KuH9/cQ8JL1Biv4u4uRs FyRPqf80Nod7xRy7jqAfoir+78uKN2OHph3R/2Z4VcoIuxPNsq0eWsA5YhEqdXs6oErxUHD2yHr+l j6Lw2S5Q==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mdWHs-007MQC-E3; Thu, 21 Oct 2021 11:31:08 +0000 Date: Thu, 21 Oct 2021 04:31:08 -0700 From: Christoph Hellwig To: Jane Chu Cc: david@fromorbit.com, djwong@kernel.org, dan.j.williams@intel.com, hch@infradead.org, vishal.l.verma@intel.com, dave.jiang@intel.com, agk@redhat.com, snitzer@redhat.com, dm-devel@redhat.com, ira.weiny@intel.com, willy@infradead.org, vgoyal@redhat.com, linux-fsdevel@vger.kernel.org, nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org Subject: Re: [dm-devel] [PATCH 0/6] dax poison recovery with RWF_RECOVERY_DATA flag Message-ID: References: <20211021001059.438843-1-jane.chu@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211021001059.438843-1-jane.chu@oracle.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Looking over the series I have serious doubts that overloading the slow path clear poison operation over the fast path read/write path is such a great idea.