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=-7.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 EDB35C433F5 for ; Mon, 20 Sep 2021 11:32:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C927660F93 for ; Mon, 20 Sep 2021 11:32:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236919AbhITLdj (ORCPT ); Mon, 20 Sep 2021 07:33:39 -0400 Received: from smtp-out2.suse.de ([195.135.220.29]:53100 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231279AbhITLdi (ORCPT ); Mon, 20 Sep 2021 07:33:38 -0400 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 93D49200C3; Mon, 20 Sep 2021 11:32:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1632137531; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=GkbqucqVLLx4khgsbPCIixNK+KXrXJ1lr+azDZKofqY=; b=wrj7fpaZJMLLYjqvQcYxTXTA0z8hD+p8boIMGxsRrDqYU3fwvmvgT4ZI6ncjq7MvJhDx8P T4DdR/p1K05MRwK22Q6CuO3Dwgu/xCdxOKfuulAT3vOr5xZYEgHGqTohhBMB9F5lq4gU4T tai/lsWmAGrPWzcT7XYnDiRRo41av08= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1632137531; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=GkbqucqVLLx4khgsbPCIixNK+KXrXJ1lr+azDZKofqY=; b=NYBaSyx3Ovow5boIpBAx6ib3nAvjc/XP1nsH176KS73Zphdvzi1Vm0ZxrNsmMJp0XflBcc sXrCtmTUPpglYoBw== Received: from ds.suse.cz (ds.suse.cz [10.100.12.205]) by relay2.suse.de (Postfix) with ESMTP id 8AFD5A3B96; Mon, 20 Sep 2021 11:32:11 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 57D83DA7FB; Mon, 20 Sep 2021 13:32:00 +0200 (CEST) Date: Mon, 20 Sep 2021 13:32:00 +0200 From: David Sterba To: Steven Davies Cc: dsterba@suse.cz, Forza , linux-btrfs Subject: Re: Select DUP metadata by default on single devices. Message-ID: <20210920113200.GG9286@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Steven Davies , Forza , linux-btrfs References: <9809e10.87861547.17bfad90f99@tnonline.net> <20210920090914.GB9286@twin.jikos.cz> <433faf921e92e94fa117a4e263dfddcd@steev.me.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <433faf921e92e94fa117a4e263dfddcd@steev.me.uk> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Mon, Sep 20, 2021 at 12:12:33PM +0100, Steven Davies wrote: > On 2021-09-20 10:09, David Sterba wrote: > > > So: > > - DUP by default for metadata on single device > > - single by default for data on multiple devices (now it's raid0) > > - free-space-tree on > > Is this synonymous with space_cache=v2? Yes. To reduce the mount option number I wanted it to be called v2, the free-space-tree is the implementation, we use that interchangably though.