From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F34302C8F for ; Thu, 21 Oct 2021 11:31:16 +0000 (UTC) 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> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: 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 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.