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=-3.8 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,URIBL_BLOCKED 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 3FFC3C47423 for ; Fri, 2 Oct 2020 06:55:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 02A60206DD for ; Fri, 2 Oct 2020 06:55:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="dPcWs/ve" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726175AbgJBGzA (ORCPT ); Fri, 2 Oct 2020 02:55:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725948AbgJBGzA (ORCPT ); Fri, 2 Oct 2020 02:55:00 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA833C0613D0; Thu, 1 Oct 2020 23:54:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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; bh=wsszzdNdt8/s5qmse2DtQE9T6ptZdmllS5Ln6Q6wU9w=; b=dPcWs/vek1tL6i1nQlvOrE1uA7 8xNJ8Oje5kX7lSLWTZyOtzuVqtVFyeYSK1k+YIC4hGdDMAVJix1JWLikC5X5IMWqei9i4rHgZwVGd SD0S05U3c/JiwtVUkoPuwiYZEYROVD9jo7aNA0uZo8FMJLUmj6UXjrCS4I45G+y+s0isM6bwvh7dP Mb6tKl+tTbGqe6MJsL9Z5CDppphb88mIwyztnvEAI6ZVtZ3QFkMZaFBUXwFdYq3zWn+lXU7X1M9Hz qUm9iN54MuQJB97nh2XBZhPFT665ncwJylT4Br6ojvvNBQiuEsWumjLPjZeirdZDZIV/cZjn1eiSn 472YLMnw==; Received: from hch by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kOExy-0007q1-6R; Fri, 02 Oct 2020 06:54:54 +0000 Date: Fri, 2 Oct 2020 07:54:54 +0100 From: Christoph Hellwig To: Nick Terrell Cc: Christoph Hellwig , Nick Terrell , Herbert Xu , "linux-crypto@vger.kernel.org" , Btrfs BTRFS , "squashfs-devel@lists.sourceforge.net" , "linux-f2fs-devel@lists.sourceforge.net" , "linux-kernel@vger.kernel.org" , Kernel Team , Chris Mason , Petr Malat , Johannes Weiner , Niket Agarwal , Yann Collet , Greg Kroah-Hartman Subject: Re: [PATCH v4 0/9] Update to zstd-1.4.6 Message-ID: <20201002065454.GA29993@infradead.org> References: <20200930065318.3326526-1-nickrterrell@gmail.com> <20200930065336.GA13656@infradead.org> <8743398B-0BBB-424E-A6A7-9D8AE4EFE8ED@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8743398B-0BBB-424E-A6A7-9D8AE4EFE8ED@fb.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Wed, Sep 30, 2020 at 08:05:45PM +0000, Nick Terrell wrote: > > > > On Sep 29, 2020, at 11:53 PM, Christoph Hellwig wrote: > > > > As you keep resend this I keep retelling you that should not do it. > > Please provide a proper Linux API, and switch to that. Versioned APIs > > have absolutely no business in the Linux kernel. > > The API is not versioned. We provide a stable ABI for a large section of our API, > and the parts that aren???t ABI stable don???t change in semantics, and undergo long > deprecation periods before being removed. > > The change of callers is a one-time change to transition from the existing API > in the kernel, which was never upstream's API, to upstream's API. Again, please transition it to a sane kernel API. We don't have an "upstream" in this case.