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=-4.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 BBAE0C43460 for ; Thu, 15 Apr 2021 18:29:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A74D6109D for ; Thu, 15 Apr 2021 18:29:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234451AbhDOS3g (ORCPT ); Thu, 15 Apr 2021 14:29:36 -0400 Received: from mail-pg1-f169.google.com ([209.85.215.169]:44667 "EHLO mail-pg1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233052AbhDOS3f (ORCPT ); Thu, 15 Apr 2021 14:29:35 -0400 Received: by mail-pg1-f169.google.com with SMTP id y32so17471033pga.11; Thu, 15 Apr 2021 11:29:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=TV0W0PA+E/xRpJBeBsTztONxJa8elueaRo6voPq/Bf4=; b=BMznXrFvmF7Gy3DUUis+2tGlzSuPo1FJVgELNPI5OEQ7OfFLFsT33pMLTmOHYaE9j/ NgUtfcH4089DyHcOuRf8haPFLzJWneQnKaEbcMzpCBn+BQROYISSONUHK1Mlin+9jgnN d7pgbcycscdATxDjsUjZmcWmgqJbNaIuvd277O0631wS2FfnEM/U+gA5bQpFv6n757fj eam4rFLYDaOowuMlIoJ2CJr26tB4ePOXpvjHmyJn3KD5P9+75LBrVzyOi975xxGMhKHv IttFsjbsGnJ5M41/Vz3a6xzn9kg3FiO42ZzH3OuULHVnripFowWlFEvg5iAgjc/fb+LI 9yXw== X-Gm-Message-State: AOAM531mlZhfYMNN88LTqR448GupQoGq/Iye7/nrspEGPtQIr4TNL2IA C8xM5pPyTp7XljSVt6v0QFA= X-Google-Smtp-Source: ABdhPJzIwpv7qrR++Yme2wzTD+E6VL3I4NlABqPKtNImJyDg0nHQaQ2z18qPL/uAt8D1W1eCM+32iw== X-Received: by 2002:a63:3244:: with SMTP id y65mr4766094pgy.197.1618511351614; Thu, 15 Apr 2021 11:29:11 -0700 (PDT) Received: from 42.do-not-panic.com (42.do-not-panic.com. [157.230.128.187]) by smtp.gmail.com with ESMTPSA id c9sm2748735pfo.122.2021.04.15.11.29.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Apr 2021 11:29:10 -0700 (PDT) Received: by 42.do-not-panic.com (Postfix, from userid 1000) id CBD5740402; Thu, 15 Apr 2021 18:29:09 +0000 (UTC) Date: Thu, 15 Apr 2021 18:29:09 +0000 From: Luis Chamberlain To: Josef Bacik Cc: Filipe Manana , David Sterba , Al Viro , Chris Mason , Josef Bacik , Christoph Hellwig , Linux FS Devel , Btrfs BTRFS , "linux-kernel@vger.kernel.org" , Jeff Mahoney Subject: Re: [RFC v3 0/2] vfs / btrfs: add support for ustat() Message-ID: <20210415182909.GK4332@42.do-not-panic.com> References: <1408071538-14354-1-git-send-email-mcgrof@do-not-panic.com> <20140815092950.GZ18016@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 15, 2021 at 02:17:58PM -0400, Josef Bacik wrote: > There's a lot of larger things that need to > be addressed in general to support the volume approach inside file systems > that is going to require a lot of work inside of VFS. If you feel like > tackling that work and then wiring up btrfs by all means have at it, but I'm > not seeing a urgent need to address this. Thanks, That's precisely what I what I want to hear me about. Things like this. Would btrfs be the ony user of volumes inside filesystem? Jeff had mentioned before this could also allow namespaces per volumes, and this might be a desirable feature. What else? Luis