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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD95AC7EE25 for ; Fri, 9 Jun 2023 12:20:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238716AbjFIMU6 (ORCPT ); Fri, 9 Jun 2023 08:20:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229903AbjFIMU4 (ORCPT ); Fri, 9 Jun 2023 08:20:56 -0400 Received: from wout5-smtp.messagingengine.com (wout5-smtp.messagingengine.com [64.147.123.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3E9AE50; Fri, 9 Jun 2023 05:20:54 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id E588C320095F; Fri, 9 Jun 2023 08:20:51 -0400 (EDT) Received: from imap46 ([10.202.2.96]) by compute3.internal (MEProxy); Fri, 09 Jun 2023 08:20:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=verbum.org; h=cc :cc:content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm1; t=1686313251; x=1686399651; bh=Ae PGK7j6br0Bw6PqeF/qCZRh62N2SRkRIZC6pDml/1w=; b=EzqpDP1XRFz3tW6Bl2 ngxQeChONv4lIlRRUF1mGT9Lgd/pUVxMz4k83h/rDwfqSYBwt25VeCbmyNln8rc+ MEmhzegXrbgKuyNT77PiKtUJcSAU5azDDEbWV/l6mgGept06vVmgtDJgzXOdyE+d 0llhRAHU7/hyqxDTt5Gub8TiREafwtjoX0GF8CXRjPxwUdjmFyx8LCUryF62m7Qj 7Righ02JqONv2Hn+a0XUBq68LO25pnokXa6eZSjB9JbPyBVcTypoig9ZTwIejb2O IevBKCujdL4PGzp7Zf/eYmb1UwKIcUI7jAbOFgsttfrAzKV0WTu6vzU9WeYM1UGH 9CTw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; t=1686313251; x=1686399651; bh=AePGK7j6br0Bw 6PqeF/qCZRh62N2SRkRIZC6pDml/1w=; b=rewdMrpWrNATTMkPvmmdEU3s/JE2d v0qlkVkKq4fvy0PZSP9/jI39UQitkwpcME5u0DqH7nY6nGiCyi4RWTe6ni0To5Kn 0veMiRo4A7iTAQExvSknqgHZl/e26poGoJzevS+gG4CMNZIAOxXJvGrkGEFKNILa k0Alg9s9zI9a5B1Op/W+EH5UjrqKehPNPpV5IGxeBCUpgINC17Ud3q5YyvGtB4X7 6dvsGSbgTDF8az+cZKiFNGsHHdnBl1xj+2lLx3x1m3FoWTcMsVlkoCJ4rJ9vEkrx QLfWs+yph35Oo0UM1Rf5jItAVbZ1sp/4RDBAUa/ywbhcz3jwcgFeGUB5Q== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrgedtkedggeelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepofgfggfkjghffffhvfevufgtsehttdertderredtnecuhfhrohhmpedfveho lhhinhcuhggrlhhtvghrshdfuceofigrlhhtvghrshesvhgvrhgsuhhmrdhorhhgqeenuc ggtffrrghtthgvrhhnpeeljeeuveeiffeuvdefhfekgfeuffejgfeuhfektdeuvdffvdeg vedvgeetleelfeenucffohhmrghinhepghhithhhuhgsrdgtohhmnecuvehluhhsthgvrh fuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepfigrlhhtvghrshesvhgvrhgs uhhmrdhorhhg X-ME-Proxy: Feedback-ID: ibe7c40e9:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 3A4682A20080; Fri, 9 Jun 2023 08:20:51 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.9.0-alpha0-447-ge2460e13b3-fm-20230525.001-ge2460e13 Mime-Version: 1.0 Message-Id: <6b90520e-c46b-4e0d-a1c5-fcbda42f8f87@betaapp.fastmail.com> In-Reply-To: <20230609-nachrangig-handwagen-375405d3b9f1@brauner> References: <20230609063118.24852-1-amiculas@cisco.com> <20230609-feldversuch-fixieren-fa141a2d9694@brauner> <20230609-nachrangig-handwagen-375405d3b9f1@brauner> Date: Fri, 09 Jun 2023 08:20:30 -0400 From: "Colin Walters" To: "Christian Brauner" , "Ariel Miculas (amiculas)" Cc: "linux-fsdevel@vger.kernel.org" , "rust-for-linux@vger.kernel.org" , "linux-mm@kvack.org" Subject: Re: [RFC PATCH 00/80] Rust PuzzleFS filesystem driver Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: rust-for-linux@vger.kernel.org On Fri, Jun 9, 2023, at 7:45 AM, Christian Brauner wrote: > > Because the series you sent here touches on a lot of things in terms of > infrastructure alone. That work could very well be rather interesting > independent of PuzzleFS. We might just want to get enough infrastructure > to start porting a tiny existing fs (binderfs or something similar > small) to Rust to see how feasible this is and to wet our appetite for > bigger changes such as accepting a new filesystem driver completely > written in Rust. (Not a kernel developer, but this argument makes sense to me) > But aside from the infrastructure discussion: > > This is yet another filesystem for solving the container image problem > in the kernel with the addition of yet another filesystem. We just went > through this excercise with another filesystem. So I'd expect some > reluctance here. Tbh, the container world keeps sending us filesystems > at an alarming rate. That's two within a few months and that leaves a > rather disorganized impression. I am sure you are aware there's not some "container world" monoculture, there are many organizations, people and companies here with some healthy co-opetition but also some duplication inherent from that. That said at a practical level, Ariel in the https://github.com/containers GH organization we're kind of a "big tent" place. A subset of the organization is very heavily Rust oriented now (certainly the parts I touch) and briefly skimming the puzzlefs code, there are definitely some bits of code we could consider sharing in userspace. Actually though since this isn't releated to the in-kernel discussion I'll file an issue on Github and we can discuss there. But there is definitely a subset of the discussion that Christian is referring to here that is about the intersections/overlap with the composefs approach that is relevant for this list. Maybe we could try to collaborate on an unbiased "puzzlefs vs composefs" document? (What's in https://github.com/anuvu/puzzlefs/tree/master/doc is a bit sparse right now)