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=-2.3 required=3.0 tests=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 571A5C433E0 for ; Mon, 1 Jun 2020 15:08:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 316C920738 for ; Mon, 1 Jun 2020 15:08:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727924AbgFAPIA (ORCPT ); Mon, 1 Jun 2020 11:08:00 -0400 Received: from mx2.suse.de ([195.135.220.15]:49590 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726176AbgFAPIA (ORCPT ); Mon, 1 Jun 2020 11:08:00 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 6A6AAAC5B; Mon, 1 Jun 2020 15:08:00 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 23003DA79B; Mon, 1 Jun 2020 17:07:55 +0200 (CEST) Date: Mon, 1 Jun 2020 17:07:55 +0200 From: David Sterba To: Anand Jain Cc: dsterba@suse.cz, dsterba@suse.com, linux-btrfs@vger.kernel.org Subject: Re: [PATCH v7 rebased 0/5] readmirror feature (sysfs and in-memory only approach; with new read_policy device) Message-ID: <20200601150755.GX18421@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Anand Jain , dsterba@suse.com, linux-btrfs@vger.kernel.org References: <1586173871-5559-1-git-send-email-anand.jain@oracle.com> <20200515195858.GS18421@twin.jikos.cz> <20200522134656.GL18421@twin.jikos.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Tue, May 26, 2020 at 03:23:08PM +0800, Anand Jain wrote: > > Yes that's the usecase and the possibility to make more targeted tests > > is also good, but that still means the feature is half-baked and missing > > the main part. If it was out of scope, ok fair, but I don't want to > > merge it at that state. It would be embarassing to announce mirror > > selection followed by "ah no it's useless for anything than this special > > usecase". > > I didn't realize the need for default policy is prioritized before this > patch set. The updated default policy has been asked for for a long time so this is what makes it important. > Potential default read policy is interesting, looking into it. Thanks.