Received: by 2002:a25:1506:0:0:0:0:0 with SMTP id 6csp4907536ybv; Wed, 26 Feb 2020 05:08:48 -0800 (PST) X-Google-Smtp-Source: APXvYqwkjp32ZhGLf2DH87MHdTCsI0shzqaj9D3I1RKhciCKL7eByZegccjCPN33QzUeVcd9d2l6 X-Received: by 2002:a05:6808:319:: with SMTP id i25mr3024206oie.128.1582722528524; Wed, 26 Feb 2020 05:08:48 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1582722528; cv=none; d=google.com; s=arc-20160816; b=zjQGQQR4Z7xGYJTMax4CLEb7h2kwtc9krchtJeNAdyHeuWDbwyr1hgEVqv4N91fTQp kSY+NCte3toyrQ70JTPyF6QX88kKyr4Cg2yRgOnRUEjttv7zetiYGQxGxk7pd+h+/YgG /7YyzeP68BMZW+ojiFSRb28+9jTZ7bvOwkQsRL9E7bm8EfxK99+6bqeHWFHRvsIMBlaV quZHNEOt0ObKulHuobbrbMtw9NW/FSkhOwcXxx/Ygw6fw9r44Hr438Al5CbNdFJdE7Q4 FnHuYORwCVNoqQ8wBARjXB5GKUlaqLuXKbXD+75ANzYRVBtE99GRW58ILw6S2No+bk8v PI4Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=2IY2GB7i/mwF4XIOgJDt/lQwAFNzsE0mMABE5WbvmUo=; b=eLfrd64Y3q2YrO6/ob8B72Nr4qzIXK4uX0nKlMc+mg16rK/pfbUB99Am92IDcX/CTv V1GCtmpcQYupWUH1q97keVlKVtvvsbF+3zuiglAkXTuShhuhkPhVx3Zy7pwIFIwgjlta 3sTAjKr0Q0AKCHBepO8OZi3ifsJHs2u/7+nFxyBvxCid9h+oTPkfT4GNnmxiyS+31BS4 Xi/errkgGH4rDw6Z1Aym4to0AGpawDNGs93HWEJ8YuytDT3h00tKDjmMV4zSpiyYU/Ky RjISHUHTV4+u0w2M/176dCzJBhSujV+0RvE5RJnsjy26G2CrKQstY+bb0VbS1ItTZYqW 4yBA== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=AIUiGp2x; spf=pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r10si1130260otk.83.2020.02.26.05.08.29; Wed, 26 Feb 2020 05:08:48 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-ext4-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=@infradead.org header.s=bombadil.20170209 header.b=AIUiGp2x; spf=pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726891AbgBZNIX (ORCPT + 99 others); Wed, 26 Feb 2020 08:08:23 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:44134 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726592AbgBZNIX (ORCPT ); Wed, 26 Feb 2020 08:08:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; 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=2IY2GB7i/mwF4XIOgJDt/lQwAFNzsE0mMABE5WbvmUo=; b=AIUiGp2xB8oDNwPH9CLnnSK+Mt Ij91K8QhHlgdauRQyycZeFF2KqhqoBDiMYqAci0/1uKmmkEqP9K1pFGOX2vEoY08DO5lbyEwl/Kj3 0y8cCYNhIRvy/5RPdZhSlsTL/LfT1/7yNhD9L7idGxioeuC9IRPcBYObfxvO/Ocs8n3YoHeREVBQw vberjXfNkORkCH2EthTZwsMYwXGnt+VfiIfGV/BAy6wTvOVlAmGnlD2Amm9XOMKy62h+5Zh03arhW sMHo/IfgGbstv+JyOcmwYicq2+wQ7gtlymVgVZEmS0WpGxHwuchsm02qtcogs0L440ronFnxDqUR3 N/YN274g==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6wQG-0003fw-W1; Wed, 26 Feb 2020 13:08:20 +0000 Date: Wed, 26 Feb 2020 05:08:20 -0800 From: Matthew Wilcox To: Ritesh Harjani Cc: jack@suse.cz, tytso@mit.edu, linux-ext4@vger.kernel.org, adilger.kernel@dilger.ca, linux-fsdevel@vger.kernel.org, darrick.wong@oracle.com, hch@infradead.org, cmaiolino@redhat.com Subject: Re: [PATCHv3 0/6] ext4: bmap & fiemap conversion to use iomap Message-ID: <20200226130820.GZ24185@bombadil.infradead.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Wed, Feb 26, 2020 at 03:27:02PM +0530, Ritesh Harjani wrote: > Background > ========== > These are v3 patches to move ext4 bmap & fiemap calls to use iomap APIs. Are you also planning to switch readpages over in the future? If so, I think you'll want this patch: http://git.infradead.org/users/willy/linux-dax.git/commitdiff/2ef99d3d1dd1941cbf9214f2a49b50f8c9e6f021 I haven't done any performance evaluation here; just reading the code.