From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB9E4C71122 for ; Sun, 14 Oct 2018 17:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 89C5720876 for ; Sun, 14 Oct 2018 17:26:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="m7pFAjXi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 89C5720876 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726691AbeJOBHu (ORCPT ); Sun, 14 Oct 2018 21:07:50 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:52902 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726319AbeJOBHu (ORCPT ); Sun, 14 Oct 2018 21:07:50 -0400 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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=3sgKW5dzwxnK4LAYt3at1bGEhWypstOocdNX+q1vGTw=; b=m7pFAjXia3UsQZj1Txjiq+IiE fZF4fkbOzP/Xezl8TEcfxa2KKfbmQG+yBOc88rQcoq1mCeCYNEwp6tlT1MC7Bev1K18OKXMl7ywlm TAXDXsGvNG9bockkn47q4ulYeHX4MYKe7UUZd5V5c+GL0xegwjFMDdHOwUiFwUgEqDHufe4KE/6ss SU0bJpNDq+qs7rgQDJrHmQGFdL75Zhh6KG3OvoLION0ERETKK6B66VUeLJSoK4UoiIWFkUj48wO3z MJm84hpi0AMYSrrFb6k4P59dSvnnueiWvGYe4qBM13ZEqB+QzJ+la9gxHDnr56iHRVB6vA/2o7003 Jn+I6CQXQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gBk9V-0006pd-6Z; Sun, 14 Oct 2018 17:26:05 +0000 Date: Sun, 14 Oct 2018 10:26:04 -0700 From: Christoph Hellwig To: "Darrick J. Wong" Cc: david@fromorbit.com, sandeen@redhat.com, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, Amir Goldstein , linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, ocfs2-devel@oss.oracle.com Subject: Re: [PATCH 19/25] vfs: implement opportunistic short dedupe Message-ID: <20181014172604.GH30673@infradead.org> References: <153938912912.8361.13446310416406388958.stgit@magnolia> <153938927786.8361.10345203650384514542.stgit@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <153938927786.8361.10345203650384514542.stgit@magnolia> User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org How is RFR_SHORT_DEDUPE so different from RFR_SAME_DATA + RFR_CAN_SHORTEN that we need another flag for it?